(almost) INDESTRUCTIBLE! Autopsy of the JTD 8V engine. Complete disassembly!

Heelo guys! Complete teardown to understand what happened to this engine, how it suffered with the belt failure and what its strengths are! Complete analysis of all components from heads to block and checking internal components.
This motor is not available for sale because it is still very useful because it withstood so well a catastrophic failure of the belt.
Maintenance is king on these and all engines, having always had a good maintenance of antifreeze and engine oil its good condition is evident.
Belt failure happened, once again, due to lack of verification and maintenance: Failure of the alternator dynamic pulley, power steering oil leakage\humidity onto the dynamic tensioner and finally the failure of the tensioner that led to the deviation and destruction of the accessories belt. Debris that lodged in the timing belt.
DO NOT put thread glue on crankshaft and camshaft spindles or bolts!
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Alfista salutations!
#AlfaRomeo #alfa156 #AlfaRomeoNoProblem

[@manoloh]

I have a fiat stilo 1.9 8v multijet 120hp, now, with a remap is another car, I love it.

[@Thronks_]

I have a 156 1.9 16V Jtd M- jet, with 280HP. It runs well with this modifications about 100k KMs. So, this engines is really undestructible.

[@alfaromeonoproblem]

Really awesome! Thanks for sharing

[@djlosmi]

Excellent video! Nice to see the insides of it.

[@alfaromeonoproblem]

Thank you very much for watching!

[@BK-it6te]

Excellent video well done we Italian car lovers

[@finders829]

I remember , i was looking most reliable car, and found alfa romeo. But you telling me new things, that i didnt know thanks 🙏

[@alfaromeonoproblem]

Thanks for watching the video!

[@luigigargiulo5368]

Fabolous video. I have a 147 with that engine. 345k km I had the same failure at the auxiliary belt, luckly during the engine start up. I crack the pully and some damages to the valve clearance @ 280k km. Now I repair It and I go for 400k km

[@alfaromeonoproblem]

Awesome! Thanks for watching

[@Zeno-zeno402]

U made it clear for me. At first, I vas very sceptic, cause all my life I have repaired and drove only petrol engines, especially Hondas. But, from now on and because of u, I will try to adopt a 1.9JTD heart in my family and see how it goes:) Thx a lot, mate

[@alfaromeonoproblem]

You will be amazed by it.

[@TheMiltonroad]

Have a 2003 fiat doblo 1.9jtd 8v. 130k on it and been in the family since new 20 years ago. Still the samd turbo, clutch, injectors turbo the lot...tank still doing 1k a month running about. Never garaged just yearky oil and filters and odd battery every few years and cambelt and ass every 70k

[@alfaromeonoproblem]

@TheMiltonroad thank you very much for watching! Thank you for sharing your experience!

[@ludigracic]

Im driving Fiat Doblo 2005 1.9 jtd, and it have 350xxxkm. Its great and reliable car that still runs great! Service once a year and he will go long way

[@RandomYTStuff]

Really nice one.

[@alfaromeonoproblem]

Thank you very much!

[@steste1428]

Interesting. Good video, congratulations from italy

[@alfaromeonoproblem]

Thanks for watching, from Portugal

[@unknowingkoala]

I found the limit of the engine....3.3 bar of boost, methanol spraying. It was quicker than a stock gtr whilst in a fiat doblo, but it pulled the threads out of the block for the headbolts.

[@alfaromeonoproblem]

That's amazing

[@5Dale65]

I'm out of words that it didn't spin a bearing, didn't throw a rod, didn't melt a piston. What a HELL of an engine! I believe you could even drive a tank with it :)

[@unknowingkoala]

@@5Dale65 rod bearings had a life span of 20000 to 30000km. At 22000km, a teardown showed copper showing through the bearing evenly across 2/3 of the bearing shell

[@DashCamSerbia]

Yes, Magneti Marelli and Fiat developed the commonrail injection system. And the Alfa 156 was the fist comercial car to have engine with such injection system. While German and other manufacturers had still used a pre-WWI technology. Fiat does make the best diesel engines. Appart maybe for that 1.3 mjt, but it is a small engine so maybe they all have similar issues.

[@alfaromeonoproblem]

Hello. Thank you very much for watching. The problem with the 1.3 is complying with emissions. For being a small engine you have to keep the engine rev happy. With that more emissions. That same engine on the Suzukis is way better, they have a great software and map.

[@fishwagt1514]

​@@alfaromeonoprobleminteresting!. Did Susuki decide what the map should be for their vehicles do you think or was this a Fiat desicion?

[@alfaromeonoproblem]

Suzuki's decided, fiat just sold the engines

[@christianarmari6899]

Ciao come posso pulire gli iniettori del JTD 8 valvole?

[@erd21]

Very good movie as always 👍🏻 Thank you for that. Is there any chance to make a movie about checking the condition amount of air/fuel? I have 8V engine in my 147 (120KM) and have a problem that over about 2500rpm it shows black smoke. It had to have too much fuel or too less air. Maybe you can show on any examiner the correct amount of such parameters, maybe some diagrams. I have Multi ECU Scan to do it. Thank you👍🏻

[@CostaTropicaldeGranada]

I have a 2006 147 8v JTDm which has done 170.000Km and also pushes out a lot of black smoke under hard acceleration. It has just this week passed its ITV inspection in Spain including emissions! Any ideas or help on why it is doing this?

[@alfaromeonoproblem]

I have a video that may help out a lot: kzbin.info/www/bejne/bZbVfn-LosRkmtE

[@alfaromeonoproblem]

See it this video helps: kzbin.info/www/bejne/bZbVfn-LosRkmtE

[@fishwagt1514]

Have youa video on the relationshipa of those involved in these engines? For example a pvauxhal CDTI has stamped on it FPT /GM. So FPT is Fiat Power Train. Are they separated from Fiat and what is GM's part in this. Did GM help deveop the multijet engine or did they fund the development or did they just licence the use of the engine? I'm assuming that on Alfa's and Fiats the engine is not stamped GM or is it?

[@alfaromeonoproblem]

GM bought some engines, like they did before with Isuzu. Then a more serious alliance with the 1.3 mjet and GM got the license to produce them too. They are fiat engines all the way

[@Fs_Media]

Do you like the 16V JTD engine as well, apart from the swirl flaps and EGR? Are the injectors just as vulnerable on the 8V as on the 16V?

[@alfaromeonoproblem]

Hello. I love the 16v one. The first ones are the best for my opinion. No flaps on those and very strong head The injectors are way better. The egr can be reduced like 90% on those with no fault codes

[@juanbenavent9131]

What do you think about the 2.4 JTDM 20v? Thank you

[@alfaromeonoproblem]

@juanbenavent9131 i love it very much! Just the latter ones have a bit of a head issue but a solution is present

[@fullycircle262]

@@alfaromeonoproblem I have the latter one with flaps 😥

[@ldp1993]

Thankyouu

[@alfaromeonoproblem]

Thanks for watching!

[@borcemitev2903]

I had that engine in my stilo 115hp, remaped and don't know how much exactly has now goes well and bought 5 years ago with 260km however from the condition of the car i can tell that at least the car has double that, never ever had a problem on it, apart from flywheel, clutch and crankshaft pulley, oil change... Nah forget about that maybe 3 times in that 5 years ownership.. My other car however 2.4 JTD-M brera with similar engine and 210hp, good engine but not even near the 1.9 8v. In 2 years ownership i had to change alternator, ac compressor, 2 crankshaft pulleys EGR. And to remove swirl flaps and oil change every 10tkm and i have done mayor service (timing belt and water pump) even though it was unnecessary Ah forgot to add. The stilo now had 330km

[@alfaromeonoproblem]

Thank you so much for watching and sharing your experience!

[@DrumToTheBassWoop]

The secret ingredient is *Italian love and passion* that made it good. 🤌

[@alfaromeonoproblem]

I believe so too

[@aleksandarmarkovic4221]

What is your opinion on early 16v jtd m jet engine from alfa 156 (103kw and 110kw versions)? Pros and cons of 8v and 16v? In my expirience the 16v jtd would not bend the valves, because it has different style of lifters. It is going to break rhe rocker arms (usually).

[@alfaromeonoproblem]

Hello. The early 16v are very good, very strong too! The thicker valves means that the lifter arms will brake as a fuse and the valves will be ok. Seen it several times too. The only thing was too much egr, but the factory still supplies a restricted plate that takes out most of it. And with no fault codes.

[@ramblinginmeath4950]

Greetings from Ireland - I have the 8V engine in my 2010 159 with 240,000km - couple of small problems I have to deal with EGR code and I might change out the gloplugs - very awkward to access - and I am going to soak them in penetrating oil for a few days.. any tips on removal .. very difficult to get socket and extension in at them ! regards, Paul

[@alfaromeonoproblem]

Hello. I do have a video for that! kzbin.info/www/bejne/f4nYhnSDo6emoc0si=rdAED7aXcZS2RgSl

[@ramblinginmeath4950]

@@alfaromeonoproblem Thank you Bruno

[@Brisbane2024]

There is another way to kill that engine. After certain time the exhaust is blocked with carbon, causing to much back pressure to the turbo. With this turbo can fail and/or press oil into intake system. Exactly that happened at my 105 HP JTD years ago. Oil consumption gets so high, that during a long trip, I did not recognise that engine oil was below minimum. At the end I got a bearing issue and high repair costs assembling a used engine.

[@mark737-c4x]

Hi, when this happened did you have a lot of oil coming out from between the charge pipe and throttle body? Because that's what mine is doing and mario said it's normal but I don't think he understands how much is coming out I mean it covers the firewall of the car in a 100kms thanks

[@Brisbane2024]

@@mark737-c4x My JTD just lost the oil out of exhaust, but I know blocked exhaust can cause lot of issues, for instance, high crankcase pressure, subsequently causing leaking seals and gaskets.

[@mark737-c4x]

@Brisbane2024 ok, thanks, and when you say your exhaust was blocked do you mean dpf or muffler? If it was the dpf did you get a warning light? Thanks, I really love this car and I want to look after it.

[@Brisbane2024]

@@mark737-c4x The 105 HP JTD does not have DPF, just catalyst. The muffler was blocked with carbon black after 180000 km.

[@CostaTropicaldeGranada]

Yes I have a rust free low mileage 147 JTDm 120bhp and it is a sweet motor. I am in the process of mating it to a 6 speed gearbox from a 2005 GT 150bhp, as I think it does lack the extra cog on the motorways here in Spain. Is this a straight swap?

[@alfaromeonoproblem]

Hello. Very nice. You may have to put in the gear selector cables too. But it is a straight swap yes

[@CostaTropicaldeGranada]

@@alfaromeonoproblemThank you ... Are the selector cables different, or can the original 5 speed selector cables be used?

[@alfaromeonoproblem]

On most 6 speed ones the two cables has an adjustment. On the the 5 speed ones only one cable gas adjustment

[@uvler]

Hello i just bought 2007 Fiat Sedici 1.9 120 HP, is it equipped with this engine? Can i use Millers Trident 5W40 oil? (it has fiat 955535-n2 specification as in user manual)

[@alfaromeonoproblem]

Hello. Yes, this is it. You can use any 5w40, no issues.

[@samuelhalas2006]

Hello, on my lovely 300.000km 1.9 JTD Fiat Stilo i have marks of valves on cam buckets. Why do i have this marks on some buckets from below? Spacers are also visible weared. Thanks much

[@alfaromeonoproblem]

Factory said to check for clearance every 100 thousand Kms. So check for that and with that is some more damage is present

[@samuelhalas2006]

@@alfaromeonoproblem there is visible wear on bucket from valce, and visible wear on spacer from bottom

[@samuelhalas2006]

@@alfaromeonoproblem and please, I torque table is 14%20 Nm...what does it mean?

[@alfaromeonoproblem]

@samuelhalas2006 replace both I guess

[@ane_8186]

Hello, what do you think about multijet II (in terms of reliability), the one with 210 hp that you can find in alfa romeo stelvio. Many thanks

[@alfaromeonoproblem]

Hello. The only less good thing is the bad design or execution on the oil pick up seal.

[@ane_8186]

@@alfaromeonoproblem how often you have to change it?

[@alfaromeonoproblem]

@ane_8186 I recommend every 100 thousand Kms. It's a subframe out job.. So you can try the JTD performance upgrade and probably never have to worry about it again

[@VLOGISGARAGE]

Shuld you remuve the plate that holds alternator to remove power steering pump.

[@alfaromeonoproblem]

Hello. I do not remove it, no.

[@VLOGISGARAGE]

@@alfaromeonoproblem but its stuck doesnt get out.i ubdone the bolts removed plastic cover in tha back and doesnt come out. And last question is it normal second hand steering pump to have play in the shaft. Not radial but left and right.

[@alfaromeonoproblem]

@VLOGISGARAGE hello. I did several and all came out well. Absolutely no play should be present

[@VLOGISGARAGE]

@@alfaromeonoproblem maybe the problem is that i didnt remove the upper bracket that holds the alternator.

[@alfaromeonoproblem]

@VLOGISGARAGE that may be an issue

[@doraexplora9046]

Always wanted the 2.4L diesel.

[@alfaromeonoproblem]

The 10v one is a absolute beast and even more reliable than this one. Because it had the balance shaft

[@AttentionPieton]

​@@alfaromeonoproblemyou think 10v is stronger the 20v ?

[@alfaromeonoproblem]

@fucklescops91360 way stronger!

[@AttentionPieton]

@@alfaromeonoproblem okay thanks. Noted ☝️

[@mordy2085]

Thoughts about the 2.0 jtd 140 HP 350Nm ? I have a fiat Fremont. I wonder if I should boost it tho it feels very fast already where I live xd

[@alfaromeonoproblem]

Good engine. Just replace the oil pick up seal every 100 thousand Kms

[@mordy2085]

@@alfaromeonoproblem is that why I got some oil leak just below the thing below the yellow oil stick? (It's squarish and black with cables on it) It doesn't decrease my oil tho so. But thanks 🙏

[@alfaromeonoproblem]

@mordy2085 it usually leaks on the oil stick tubo

[@MrBenzcdi]

interesting to see the engine components exposed so clearly, especially the channels of the engine coolant. last year, after replacing the water pump, the workshop flushed out the cooling system on my 1.9 8v 3 times because the coolant kept on turning in to a rusty looking brown color. a year later, the coolant is still ‘rusty’ so i wonder where that comes from. anyone any ideas?

[@alfaromeonoproblem]

Hello. That is because of lack of maintenance and good quality coolant. That rust will be very difficult to remove entirely

[@william_mazza]

It happened to me! Due to stupid mechanic of the previuos owner. I flushed the system 5 times with water before it stopped rusting. It was a messy job due to the fact i needed to warm up the engine every flush to get the thermostat opened and make the water circulate. Than i flushed the system with coolant to remove any trace of water and then made the final fill. No more rust since then.

[@alfaromeonoproblem]

Thank you very much for sharing. That is exactly how it is supposed to be done.

[@william_mazza]

@@alfaromeonoproblem thx for the feedback man!!

[@alfaromeonoproblem]

Glad to help out

[@toninofranco6861]

Hi what kind viscosity oil 10w40 o 5w40

[@alfaromeonoproblem]

5w40 B4 ir c3 for countries like Portugal.

[@toninofranco6861]

@@alfaromeonoproblem ok i use the 5w40 wr Selenia i have now 360.000 i whant to change oil what can you recomend on motul Shell vavoline

[@alfaromeonoproblem]

@toninofranco6861 all good brands, just change the oil every ten to fifteen thousand Kms max. Always with a excellent oil filter

[@toninofranco6861]

@@alfaromeonoproblem thanks i use man oil filter

[@dejan-uzelac]

Can somebody help me with advice? Please. Nobody can fix this, i don't know where to go anymore. I have 156sw with same 8v engine. It have a temp. oscilation from 83c to over 95c. In town (stop-go) it never goes over 85c, even in summer on 37- 40c heat outside. But if i drive on open road/highway, it goes way over 90c if i drive it on constantly rpm. 2500rpm is 90c, 2700rpm is 93c, 3000rpm is 95 and so on...and it is on a flat road. Even a small hill on highway, engine temp jumping for +10c. Constantly rpm over 2000rpm, or a just little accelaration brings an engine temp. jump. All measured with diagnostic. It is acting like the engine has not thermostat. I replace: 3 different thermostat, waterpump, radiator, antifreez, antifreez container. Hoses are soft, no big pressure in system, good fluid circulation, the vent work fine, no leaking, no mixing fluids... Car start and run good, like before, no power missing, everything seems fine, no smoke, but engine temp. rising is killing me. Tnx for every advice

[@alfaromeonoproblem]

Hello. I had a very good answer but the phone died on me.. So.. it may be normal. I too had a few costumer cars doing this after replacing the thermostat. New revised thermostats run 10c hotter then before. That and the notorious weird readings of the gauge can create a huge confusion and fear. In fact the troubleshooting that I did, including head off and radiator checks confirm that the engine will run good (or better) with this new type.

[@alfaromeonoproblem]

This video explains the gauge but is not updated on the thermostat

[@dejan-uzelac]

@@alfaromeonoproblem Thank you very much for your answer. I guess that i had no choice, than drive like this, and hope that everything will be ok. It's not pleasent to see gauge on 95c or higher, but it is what it is. Keep going on good work with cars and YT clips! I wish you the best.

[@alfaromeonoproblem]

Thanks for watching! I will have a video for this exact issue soon. Thanks for watching

[@mark737-c4x]

Mario is the sixteen valve 1.9 as strong as the 8 valve

[@alfaromeonoproblem]

Hello. Not quite. But the 16v had the breakable rockers not to damage the valves

[@mark737-c4x]

@alfaromeonoproblem ok thanks I think my intercooler is full of oil and its blowing it out the charge pipe at throttle body have you ever come across this? Only does it at higher speeds 110kmh or above

[@alfaromeonoproblem]

@mack1517 its normal to have oil on the intake and charge pipes

[@mark737-c4x]

@alfaromeonoproblem other people have said this but to the point where it's blowing oil all over the coolant bottle and running down the charge pipe after a 30km drive what do I do stuff a rag in there?

[@alfaromeonoproblem]

Hello. Yes you can put a large rag, make sure it's big enough so it's not going to be sucked in when de accelerating

[@BK-it6te]

Same thing happened to me 5 pounds cover would have saved the engine, Italians 🍝