Could this £50 tool help me save my cheap Ferrari?

My Ferrari 308 has been burning oil, in order to try and find out why i have bought a Depstech HD endoscope. I'll be looking inside the cylinders to see if I can diagnose what is happening.
FULL InfluEnzo EPISODE LIST: • InfluEnzo - Ferrari 30...

[@PeteCourtier]

Yes, just drive it and enjoy until it smokes out the neighbourhood. Sounds ace👍

[@robblair3703]

Although this latest issue is frustrating, it is so satisfying to see and hear it running so nicely and to hear you speak of how nicely it drives now. Finally getting there with it. It's an old car, it'll never be finished, but you're about as close as it gets and you finally get to drive and enjoy it. Great stuff

[@richierich9761]

The back of the intake valve is sprayed with petrol don’t forget , any oil would be washed into the cylinder anyhow . I think leaving some redex to soak in the cylinder might be better than additives to oil . Might be worth venting the crankcase better to eliminate pressure on overrun .

[@awalk5177]

This is the best diagnostic (from RichieRich) I've seen and some engines are designed to burn a little oil when running , specifically V8's. I think what is in the cylinders is possibly only fuel. People tend to start a Ferrari and then rev the engine .......which is the fastest way to wear it out as it should be allowed to warm up and get oil circulating before giving high revs. Those cylinders only looked to have fuel in there, but I would check the crankcase breathing as said above as that could push crankcase vapours into the cylinders, but the plugs aren't fouling with oil. I would just be enjoying it as it is.

[@TheJensenInterceptor]

I agree here very much, try this idea

[@graham6229]

@@awalk5177 Oh yes indeed. Warm up every performance engine always.

[@grahamnutt8958]

Seriously wish I had an answer to your troubles, Jack. Admire your perseverance 💯 🚘 definitely sounds lovely now - and lively - so thats a good thing. All the best, mate 👊👍

[@wallacemassey1371]

That's an engine that needs a long run, not short bursts.

[@GB-vn1tf]

Easy for carbs to be blowing too much fuel through so its more balancing, crankcase breather check sounds like a good idea too. That's the best I've heard her run the entire time you've had her, enjoy it for a while, it's summer and it's got no roof!

[@martinclapton2724]

You could do a wet and dry compression test and making comparative readings after dropping a bit of oil in the cylinder to compare .This will tell if fault with valves or pistons. Best of luck you could do with it for a change!

[@WilberNStella]

I enjoy your Quixotic journeys with the Influenzo. Can’t wait for the oil burning to be solved. I bet Influeno gets new rings, pistons & bearings to solve oil burning. It would be classic way to get engine perfect. Thnx chuck

[@j.g.hermanson3943]

the best solution is to tear the engine down replace all the rings and journal bearings and reassemble, what it looks like in the cylinders scope is green antifreeze in the mount where the carb meets the manifold, did have a mixture of black smoke around 3500 to 4500 rpm and small puffs of white smoke you may have a shattered oil scraper ring! what I have done with cars that have sat for a while before starting in to make Michela 2 stroke oil and some gas and pour one fl oz down each cylinder and let set overnight, fire the engine up and the add 1/@ oz to each cylinder one at a time start check kind of smoke and continue to the next cylinder have found bad valves this way

[@thhall459]

The engine finally sounds absolutely fantastic! Your rings are leaking just a little bit. Quit worrying about it! Just enjoy it!

[@grantfuller2016]

Pistons should be black across the whole top . A clean band around the edges is certainly rings . Oil is cheap , I’d live with it .

[@pjay3028]

You suspect the oil is collecting on the cylinder bores during use and then, once the engine is stopped, running down the bores and pooling on the piston crowns? If this is the case then you need to run the engine and make sure that, when you stop it, one of the pistons is at TDC. Then leave it for a few days. Since this piston is at TDC it would be impossible for oil on the bore walls to run down onto that piston, because it is at TDC, so if there is any oil on that piston, it must have come from above.

[@Stealthplateblocker]

Go careful with oil additives. You loosen crud that’s built up elsewhere in the oil system, you might block an oil gallery or something. I would consider a small amount of diesel introduced from the top, turn it over by hand and let it sit for a while. But consider this - it’s running far far better than it has since you got it, the smoke is minimal, the oil build up is minimal in those cylinder… Use it! Don’t mess for the rest of the summer. Just take it out and keep an eye on it. Enjoy it and slake your thirst for masochism with the Lotus!!

[@steffydog]

So close Jack, keep pushing, she sounds fab, good luck 🤞

[@Number27]

Thanks buddy!

[@pereldh5741]

It does sound FANTASTIC now…

[@AlainHubert]

Have you checked how much oil you're actually burning by checking the oil dipstick regularly? And also, you could try to use a slightly thicker oil perhaps to reduce the smoke?

[@nickbrowne3338]

Swap to Castrol R and enjoy the smoke. Does it have a crank case breather pipe?

[@stevefuller1779]

Alternatively, seeing as it is clearly not burning that much oil, why not look into running slightly hotter plugs to burn off the contamination?

[@stuartgreenshields5591]

3:35, that's one hell of a shadow between the piston crown and the bore. Are you sure the tolerances are close enough?

[@dosgos]

Camera is incredible!

[@eliotmansfield]

doesn’t seem to smoke that bad - just leave it alone until it it’s more noticeable

[@user-ys9to2ie7k]

Right up until you talked about the ring spinning I was on the edge of my seat. Do you know how Rings seat!? Rings don't spin. PERIOD! Anywho... looking forward to the next video ¿`_

[@felawes]

Drive to Yorkshire and back. Then have a look.

[@bakedbeanzontoast9078]

No don't look inside, close the engine cover shut the garage and just pretend all is fine !!!!.👍🇬🇧

[@leumas75]

“If it’s making noise, turn up the radio. If it’s making smoke, join in and light a pipe.” Sage words of wisdom from my grandfather.

[@ryanmccormick2150]

I’d definitely just drive the Influenzo for now Jack ! Just check the oil level often and enjoy your Ferrari 😀👍

[@nononsenseBennett]

Agree, Since the engine sat unused so long sticky rings are a result.

[@onedirputt7146]

I'm going to need to see a grief councellor when he eventually gets this thing fixed or sells it :(

[@Jester-Riddle]

I'll pass you mine when he fixes, or sells this 'Chalice of Angst' ...

[@BuiltatBlackjacks]

It's not drinking oil, it's got good compressions, and the carbs are right now. If it was me I'd give it 500 miles of "running in" and see if that cleaned all the unburnt stuff out of the exhaust and got the rins settled in again after all that fuel was washing past them.

[@themessenger5868]

That sounds like the perfect advice for now... I agree totally.

[@fasthracing]

100% agree

[@kipsome45]

Unless the oil consumption is massive, I’m inclined to agree with the above; the car’s running really well and sounds great…perhaps it’s time to enjoy it through the summer. I realise that doesn’t necessarily make for great video content, perhaps you can turn your attention back to the Frankenlise Jack?

[@richardjones2468]

These cars do exactly what the subject car is doing if not driven hard frequently. As a former garage owner servicing Ferraris, Alfas etc they need a hard drive to keep from clogging up. A short thrash on a local B road is not enough and urban driving at low engine speeds with lots of idling is a disaster for these old tech performance engines. Appears not too bad to me, nothing a sustained hard drive wouldn`t most likely cure. If you really want to put your mind to rest give it a leak down test, but I think Jack is worrying about very little. Keeps subject matter for the videos going though doesn`t it.

[@karlos543]

@@richardjones2468 Well said.

[@dialog245]

It doesn't look like oil in those exhaust valve recesses to me, it just looks like they are black due to normal combustion gasses and that the bright LED is reflecting off the surface giving a glossy liquid sheen.

[@robertbcope]

Came to say this.

[@alfaman4113]

I agree

[@johngreen8693]

Same thought here.

[@gman3725]

I had the same thought as well

[@Lemma01]

Yep.

[@nicholascarter2640]

Back in the day when I was a mechanic, I would always advise not to do a top end only overhaul as my experience was that often the bottom end would fail shortly afterwards. I used to describe it to the customer as, imagine an old man, every bit has aged the same, improve one part and it throws pressure onto the other parts which are still old

[@jhndijkman]

Nickolas Carter is right. When restoring the heads you are of course sealing up all the possible ways compression can escape from the bores (head wise at least). So the next weakest link in compression loss will be blow by passed the worn piston rings. Which then compresses the crankcase. As with all engines they must have a PCV valve which takes the crankcase gases to be burned through the intake manifold. The only sure fix for this is really is new rings on the deglazed bores. Engines with higher milage with newly sealed up heads can also put extra loads on the the big end bearings and create big end knock. Good luck.

[@melbournecyclingsegments7510]

Heard that a few times too. Makes sense to me, you now have all this lovely compression up top but the old man's knees aren't up to it

[@LooseNut099]

Agree 100% with you.

[@darrellsimpson6966]

@@melbournecyclingsegments7510 maybe I should cancel my hip operation.

[@michaelroloff2804]

After the tracks in the intake port, the thought of a clogged crankcase ventilation occurred to me. If the pressure in the housing is high enough, the blow-by gases tear out of the crank drive, and if they suddenly escape, a considerable amount of oil droplets flow with them, which then make their way through the inlet duct via the vent and the carburettor. This phenomenon occurred very often in the past on the EA 827 from VW and is still present today in various modern engines after greater mileage and especially with the currently usual oil change intervals. These circumstances virtually cause the crankcase ventilation to be “lacquered”. Perhaps another possible item on the maintenance or inspection agenda?

[@TheJensenInterceptor]

totally agree

[@strat0871]

Right.

[@dalemanolas5994]

It appears to blow smoke after periods of high vacuum (ie idle or gear changes). If the oil control rings were bad then I would expect it to smoke continuously when you put your foot down. If the oil is not getting past the valve stem seals then check out any PCV valve or breather pipe. Plug any such system up and test again out on the road. If that fails then it may be oil control rings but I cannot see why they should suddenly go bad. Anyhow i will be fascinated when you find the answer. Cheers!

[@hoonaticbloggs5402]

I would EXPECT an old performance car to have smoke on start up, and it sounds on point. Don’t create a problem that’s not there

[@bcr1973.]

My thoughts exactly, chasing perfection on an old Italian car....

[@lebojay]

Agree. This is an acceptable flaw. Just drive it.

[@Neomet010]

As a couple have said here, if it is driving well (it certainly sounds stunning, and I see the smile on your face) try the oil additives, but I personally wouldn't go further down the rabbit hole by pulling the pistons. That is just me though! Best regards my friend!!

[@Number27]

FULL InfluEnzo EPISODE LIST: kzbin.info/aero/PL-JmG4958QS8v5Bn2lol3bm8YQ4UNRstU

[@patrickhostler5939]

Really feel your frustration with this, but if it’s any consolation, it the makes the influenzo films a must see. Can’t wait for the next episode, and of course the Lotus…

[@oliabid-price4517]

Too much positive crankcase pressure? Check all / any breather system. To be honest the smoke doesn't look as bad as it could be.

[@fredvallenet]

I agree I do not think the rings are shot.

[@DeejayP999]

Pretty much what I was thinking. My gut feeling is that it's running too nicely, when it is running decently, to be anything too serious.

[@PecanRanch]

point the rear camera directly at the exhaust pipe

[@JDale56]

"Perfect is the enemy of good." - car is running great and a pleasure to drive - just live with it like it is and enjoy it. Try a thicker oil (20W50) - if its rings it will noticeably reduce the amount burning. Not really a "fix" but will put off the full engine rebuild for now.

[@kimosabbe50]

Had a high-mile Toyota in the 90s that was a real smoker; car was great aside from that. So I took a chance and tried Bardahl No Smoke. I was absolutely shocked at how well it worked. It reduced the smoking issue by 85-90%

[@davidorama6690]

Yep. Those after market additives really do solve a lot of problems short term for unscrupulous car dealers and those hoping to move a car on, but I don’t recommend using them on a car deeply loved by its driver owner, let alone something as worth preserving as a Ferrari.

[@davidbuchanan2106]

They do, basically they work by increasing the viscosity index of the oil; a 15w/40 can be turned into 20w/50 or thicker very easily. However, there is are downsides - 1) they suck bhp (because of increased frictional losses) and you’ll definitely feel it will be lower on power, 2) in lower temperatures you will need to be careful to warm up the engine before using it in anger as the oil might well display unusually poor winter (cold) performance characteristics. Kept in a garage, you’re probably ok, but a Ferrari dealer will confirm the operating tolerances that the engine will accept without damage to it - better some smoke than a lack of lubricant to critical components at start up. Watched the video - probably oil ring wear on pistons is my guess, for the age of car I’d say it’s pretty good..

[@johngreen8693]

@@davidbuchanan2106 Agree with your last sentence. Older car, different materials and tolerances, I would be pleased with the level of smoke it's showing!

[@Mr57blackbeauty]

Use it and use it hard, keep a close eye on the oil consumption, often once a few hundred proper miles have been racked up after a car has been rarely used rings etc start to free up

[@nickhill3362]

Has it got any back pressure in the crank case Jack

[@parrotraiser6541]

On an old car, it always pays to calculate Oil Consumption x cost/litre vs cost of rebuild. Think of it as a constant-loss lubrication syatem. :-)*

[@wharfbanger]

As a bonus ur constantly topping up so no need for oil changes 8-)

[@Cevan42]

Ha ha! I do that with my 911.

[@sheer64]

Man gives his Italian girlfriend an endoscopy, only to find out she has a smokey tailpipe!

[@royfearn4345]

At least it's not a colonoscopy!

[@Jester-Riddle]

Italian girlfriend behaves much better with threat of repeated Endoscopies ...

[@juliandrake3159]

@@royfearn4345 Haha! Colonoscopies aren't that bad, I was asleep through mine and don't remember a thing. Worst part is the prep really.

[@lowreedman]

Sticky rings could be a thing. Ferraris tend to sit a lot and not be driven. The old tricks we would do with marvel mystery oil in the cylinders (or some other similar product) to try and free up the rings sometimes works if it isn't too bad. Seems to running pretty good and sounds lovely. Keep at it. It's a worthy patient. ;)

[@jiyushugi1085]

Yeah, Marvel can do wondrous things - used often on radial aircraft engines.

[@ianpalmer7612]

I replied in the last video to change the oil to millers 10w50 nano fully synthetic . You need to do it, jack. I’ve had it in my Porsche 997 for years . It’s superb oil.

[@hondablack1]

No bore scoring Ian ?

[@ianpalmer7612]

@@hondablack1 hi John, yes I have. It developed an oil leak between the engine and gearbox and immediately thought IMS . Gearbox off and it’s the IMS flange seal that is leaking with the bearing feeling ok. Decided to have borescope done and it’s looking really bad. All 3 on bank 2 are scored 😢 no symptoms at all but while it’s out I’m having it all done 🤣 can’t take it with you 👍

[@ianpalmer7612]

By the way. It never used oil using millers despite the scoring.

[@hondablack1]

@@ianpalmer7612 Thank Ian interesting feedback. I've just bought a low mileage 997.1. Looking into maybe getting it checked by Hartech. You will have a bullet proof car after the engine work. Good luck with it. :)

[@ianpalmer7612]

@@hondablack1 hi John, mileage is irrelevant. Get it scoped and treat the car accordingly. If you’re keeping the car it gives you options going forward 👍 thanks .

[@paulp96275]

Is it using great amounts of oil no? Is it running crap no? So just enjoy and as old garage hands would say let it develop ,it sounds lovely 👍👨🏻‍🏭

[@plllot9713]

just keep pouring paraffin into cylinders to soak the rings up. while seeping down through the rings it should free them up if stuck. then just change the oil and give it a go.

[@pgtmr2713]

What about trying something like Seafoam to clean inside the cylinders. Basically it steam cleans, breaks up carbon and stuff that could be sticking up the rings. You can before and after it, see how well it does. I think the heads are fine. Be careful do not rush, or dump too much in, liquids are not compressible.

[@marcryvon]

I was thinking of using Seafoam myself but can't get any factual info about what it actually does. Al I get is enthousiastic answers like " Oh yeah, oh yeah, use it, it's marvelous !" Aaah ok, but what does it do to an engine exactly ??🤫 " Aaah, well, I donno exactly... but it works ! 🤪 Any clue or advice ? You pour it in the gas or oil ?

[@2702simmo]

She sounds so good now Bet that steering feel makes it an absolute joy on the right road

[@mariopizzamanmario8563]

Enjoy it for the summer - nasty foul winter weather is when you rebuild engines (if you have to...)!

[@douglasprovost768]

Do you have a link for the camera please. I bought a cheap one and its not so good.

[@bobstark184]

Well it sounded absolutely lovely! 😍

[@Schlipperschlopper]

Sadly from 2030 on all combustion cars including classics will be banned from public streets in entire EU and Scandinavia :-( In Germany the Green Peoples Party gave order to shorten fuel supply from 2025 on by reducing all conventional fuel stations to only one state operated central gas station per city or county. Now they want to slow down all the gas station fuel pumps from 20 litre per minute to 2 litre per minute...From 2027 on in the EU certain car spare parts will be banned too....as exhaust systems, turbo chargers and even some engine and gearbox oils...California and New York will do the same from 2027 on.... So no investments should be done in oil burning cars any longer....They even created a new kind of crime here, called emissions and smoke crime...:-((

[@totalutternutter]

if it's any consolation, as a teenager a friend of mine dismantled his Yamaha fizzy gearbox 6 times because it wouldn't go into second gear then he found out all the gears were down on a fizzy.

[@hoonaticbloggs5402]

Lol

[@andrewausterfield6710]

ouch!

[@Stephen.C.]

Fizzy owner, Say no more, lol

[@marlin140]

Give the car a good thrash up a motorway, that will do more than the additives.

[@MrJdubbya36]

That's called an Italian tune-up when driving a Ferrari! ;)

[@stumac869]

Yep, a good run usually does wonders for an old car that's been standing for a while.

[@Faithinthedock]

My scooby senses are still saying rings! It's smokey under load, notably most in lower gears immediately after a gear change. Heads look A1 to me. Considering age etc..... Rings!

[@Number27]

Im thinking that too..

[@richardsmith9509]

Out of curiosity, what oil are you using? weight and if synthetic ?

[@roesroyce]

That engine sounds awsome , leave it alone and just drive it .....until it breaks again that is. Lovely motor

[@paulwhite856]

as a mechanic from the 90's+ that worked on many!! of these cars.. what i saw of the carb balancing with Ian (who i know is very well known) I would invest in a card equalizing meter..(www.amazon.com/Latest-Rage-5385730856-Carburetor-Airflow/dp/B00CMC57R0) something like this... had 1 for 35 yrs now and use as a No.1 before trying to tune... seems strange to me that it all is just 1 bank that is suffering... all pistons have travelled just as many times so wear would be generally on all cylinders.. so what supplies just 1 bank.. the carbs...

[@55truckerdave]

How much oil is it using...It is a high performance engine.

[@hondablack1]

Also, what was Ferrari's normal quoted oil consumption figure, when new ?

[@awalk5177]

True, most V8's are designed to use a little oil to keep things lubricated. Inside the cylinders and the plugs don't look like oil fouling. I would just drive it and smile.

[@hoonaticbloggs5402]

Yes, it’s an old Italian performance engine. It’s not a brand new Bentley

[@irabel01]

If the problem didn’t exist before… I can’t see why suddenly your rings would go bad.

[@MagicAyrtonforever]

Higher cylinder pressure by better valve sealing for a start! Also he was running all the wrong settings on the carbs and it had a misfire for quite a while.. Washed all the oil away (bore washing) and vastly accelerated wear on an already worn engine

[@EliteRock]

@@MagicAyrtonforever That's an excellent point. Which reminds me, there are engineers who recommend never restoring full compression on a high-mileage engine with a head rebuild, even if it seems mechanically perfect otherwise - the rings can be worn so thin they can shatter with the restored compression. I remember when I was a kid, my dad was told this by a _very_ good independent (Alfa and BMW trained) mechanic (Mike Sasso was his name) who had to do exactly that on dad's Alfa 105 GTJ (1600) at (IIRC) c. 46K miles- he very carefully checked the bores before agreeing to do the head, looking for glazing and lack of honing marks, but fortunately they were still there. The car ran beautifully afterwards - daily driving and a couple of trips to Italy in the following few years.

[@davidorama6690]

It happens.

[@thescotsmantechnologyrevie2138]

I hope you get this thing running properly, it's a beautiful looking (and especially beautiful sounding) thing. I bet it's a ton of fun to drive when you're not constantly worry about something going wrong! Good luck!

[@Michael_Lorenson]

Ferrari owners do constantly worry about something going wrong, and for good reason.

[@Negito-b6u]

Is it worth taking it on a long trip to burn off the crap to give you a clearer view of what's happening?

[@johngreen8693]

It needs a day out and not just a run round the block. Track day??

[@goperformancecarsmgx5089]

I have built many vintage ferrari engines. One problem it could happen with rebuild heads are guides that made to small so they leak between the head and guide. Check breathers and by all means I would use a good quality high detergent oil. Go for a road trip motorway driving is best. But saying all this ferrari engines will always have a bit of smoke at start up and on over run.

[@craigpeart7291]

On borescope long vertical lines in bore ..

[@mp3229]

I agree with the ‘if it ain’t broken then don’t fix it’ philosophy . Sounds incredible, just enjoy it or sell to me as a project !

[@MasterMalrubius]

All I can think is "Wow, that sounds great!"

[@pauldavis5184]

I think you knackered it when you boiled it up in your garage tbh :-(

[@thomasdeangelo1655]

I'm just along for the ride but have additives ever solved a problem? Good luck!

[@conkerman01]

Yes. The problem of People having too much money in their wallet.

[@bluestorm1944]

I did t believe in them until I used liquimoly diesel purge on our caddy due to slightly rough running and actually could see on software it balance the injector readings right up. Great stuff. I imagine it depends what you are hoping to cure.

[@dannykn9996]

@@bluestorm1944 did you add it to the fuel tank or disconnect fuel pipes & run engine on it neat?

[@bluestorm1944]

@@dannykn9996 Just put it in with just under half a tank of fuel and ran it. It's supposed to be a full tank but cant see it hurts. I put it in about every 2 months to a tank full now just to keep it running well.

[@sltillim]

definitely smoke on acceleration - deceleration not so much.

[@nononsenseBennett]

Soak the cylinders with a good cleaner then do an "Italian tuneup", drive this thing HARD for a long time. That may free up the rings.

[@Number27]

Yes possibly… fingers crossed!

[@collector1946]

Crankcase venting blocked or not breathing ? and use 20% Lucas Oil Stabiliser (start with 20%) it will help the oil viscosity

[@sleepingwarrior4618]

It's either that or valve stem oil seal on one of the valves. Over run smoke is usually the stem seals. You agree?

[@johndilloway9762]

run some two stroke mix through it, that will free off the ring's or leave some diesel in the bore's overnight.

[@desolatemetro]

The car sounds phenomenal once it's warmed up! I like that endoscope and have been needing to get one. Going to pick one up for sure. The picture quality is great.

[@MrMairu555]

Seriously, just drive it and enjoy it! That's really not smoking any more than any other 30-35 year old classic car. An old X-flow or Pinto Escort, or MGB-GT would be exactly the same. And, I'll say it again, it sound absolutely awesome! 🥰🥰🥰

[@grahamkay6142]

Im not a fan of the new cars with there pops and bangs , your car sounds good ... easy fix keep a spare oil can in the car 👍🏿

[@kevinbarry71]

I told you months ago, you didn't want to believe me, that engine is coming out

[@moneygooddude]

Just a strange thought, crankcase pressure could be a part of the issue?

[@paulfitzgerald1466]

If compression is OK, drive it and look again in a few weeks…

[@donwright3427]

You could just swap it for your neighbors Fiat 500😂 Thay are both Italian Thoroughbred

[@bertiewooster3326]

Never have any problems with my 1931 Austin 7 ..well apart from trying to stop it ! I was also checking your house wall for Sunday lunch joints in the brickwork .

[@Number27]

🤣🤣🤣🤣

[@riccapucho]

My thoughts, not to be taken too seriously. Maybe someone over filled the oil some time back and maybe that popped a couple of the piston rings? So a bit of bottom end after all, but not too cataclysmic.

[@TheTimeDetective42]

Mate this car and ur other cars are disasters. Take it from a dissatisfied soarer owner that no-one can help u getting these things right sell it hahahahahah .but i love you! for trying!

[@drewwagar]

That startup smoke doesn't look like oil to me, it's not blue. I can see blue smoke on the overrun and I'd say that points to rings.

[@ronald1968]

Does the 308 have crank case ventilation system that vents into the intake??..... If it does, remove the pipes from the air filter box, and see if it changes anything.. If it does, fit catch can and block the pipe inlet into the air filter box.....

[@rhiantaylor3446]

I can't recall - have you done a leak -down test yet ? Not that hard to force high pressure air into the cylinder to see if it gets past the rings into the sump and out the oil breather / recirc system. By all means drive and enjoy the car but I would be tempted to replace the valve stem oil seals without removing the head if at all possible - so often the cause of smoke after a period of high vacuum on the overrun. This is mainly about jury-rigging a way to compress the valve spring without access to the cylinder combustion chamber area; you would need to fabricate a lever arrangement bolting a stud into existing threads in the cyl head top. Don't give up !

[@mrd4335]

Hi Jack, yes try the adatives you can get good results from these products and usage of the car can really bring things back, the control rings have small triangle resesses and old static oil can gum then up!! The old timers used to move to a thicker oil to avoid bypass but this must be checked out ?? That car has probably stood around Alot and engines love to run..! I used Wynne's on my XR2 and it made difference after 300mil Best of luck Jack. Thumbs up (:

[@sparky4878]

Was it my imagination or the intro music sped up? Thought I was having a small breakdown at first.

[@allanhughes7859]

An old mechanic once said to me if an engine burns some oil its a good engine ???? That was in 1971 do you think he is/was right ??

[@Number27]

Ha!! Brilliant!

[@billymonkey111]

You seem to want to rule out heads because the people that built them are nice people. I'm sure they are.... But don't let it blind you

[@Lot76CARS]

Another cliff-hanger... hope you can identify the issue this time.

[@frozenpete788]

The big nut on steering column is often the culprit for steering play. Had the same issue on my 5 series e28, removed 90% of the play. Now it just needs a little steering box adjustment and the steering center rod to be changed. The pistons looks a bit oily, but to be honest I don't know if there was really oil in the recesses. Looked kinda wet but sometimes you could clearly see the shape in the piston. It smokes on startup but I've seen worse (my Alfa Sud Sprint omg, it's a mess). Anyway great work and determination as usual. Cheers from France 👍

[@LesSharp]

Gases do indeed flow back up the ports toward the carbs (or TB) at certain points in the rev range, especially on n/a motors with lots of valve overlap. Have you done compression and leakdown tests? Yes it's possible you have good compression and leak-down but find a stuck oil control ring, but it's a start.

[@RoeVenturesLLC]

Imagine, putting that head back on, putting 308 on ebay with a Buy It Now Price and let it run 7 days consecutive up to 6 times and having a fresh breath of fresh air when a Best Offer Notification!

[@car-collector]

I just commented on your previous video about using a borescope, well done. You need to be looking at the cylinder walls, look for vertical lines or waves. Trust me, I'm 99.9% sure this is your issue. A proper leakdown test will show you which cylinders are the issue. To get your borescope to see the sides of the cylinder walls just push it in at an angel, once it hit the piston, keep pushing so it moves the camera sideways to have a proper look at the walls. If you want to "buy time" and enjoy the car for a while before rebuilding it, add some thick oil burning additive for a temporary band aid.

[@luckyal3963]

lets hope the oil addative works even in part as at least it would narrow down the possible cause but fingers crossed and loved the video as always !

[@salvatoresalamone6487]

Over the years on our race bikes the oil is so important , and each bike brand has a sweet spot weight that stops the oil pushing up from under the rings . and synthetic oils allow us to gain more hp using lower grades . but there is a sweet spot before it blows past the rings

[@UpTheAnte1987]

It sounds amazing. Perfect pitch and raspyness

[@Engineerd3d]

One of the things I would try is to put some ATF in the cylinder and let it soak in. Then do a dry start without plugs and blow the crud out. The second thing I would do is start the car and drive it a bit until warm and up to temp. Then while idling add a quart of cheap ATF in the crankcase and let it idle for 10min or so. Do an oil change right after. ATF has some crazy strong detergents. ATF has allowed me to save two different engines in the past. Once you do an oil change go and do an Italian tune up. It may free the rings. Also look into a liquid molybdenum additive. It stains everything but there is no better lubricant for high stress moving parts.

[@ralleyquattro]

Sounds so good! Like a symphony! Enjoy and add oil when needed... most cars can burn up to 1L/1000km and still be within spec.

[@TheTimeDetective42]

Where do you keep all your cars? U seem to have hundreds!