300Tdi overheating. Customer reported boiling. But was it? Part 1

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[@BritannicaRestorations]

NEW! My own Subscription/Donation service at affordable rates! britrest.com/subscriptions/ Special tools, stickers and old stock parts! www.britrest.com/shop www.paypal.me/britrest2018

[@steveking4966]

ahh been there with the p gasket bolt prob! that blew my 300! Had my best earner yet the other day on a really nice 3door rrover low mileage , down on power and less than 50% brakes, me thinking brake overhaul and servo, nope was the turbo vaccuum line cut an inch offit stuff back on and total fix! ( iam overhaulling the brakes anyway) best 1989 range rover turbo VM i have ever seen, zero rust just ready for waxoyl. 50 euro for 5 mins work, happy days!

[@endlesskiteboarding]

Did you find the problem out. I have not seen a video showing what the problem was. I saw the other videos as well.

[@noelmcelwee1604]

This man is a dying breed of actual mechanics….. most mechanics that are churned out nowadays are just parts fitters…. Nice work that man

[@eamoncarroll6051]

I know you ate a guru but i love that you are a guru in the style of tommy cooper and i mean that as a high complement .

[@BritannicaRestorations]

Thanks!

[@stephenellis6651]

Mike, I wish you had been my journeyman when I was an apprentice.

[@BritannicaRestorations]

Thanks!

[@grahameroberts8109]

Good timing with Jim turning up. Your customer will faint if he watches this video and hears about the ‘deposit on a 2020 Defender’. Lol.

[@BritannicaRestorations]

I have a feeling this is not going to be a cheap repair

[@grahameroberts8109]

Britannica Restorations Ltd Well one thing that’s obvious with your videos of repairs is that you do a proper job the first time. We all need mechanics like yourself. 👍🏻🙏🏽😁

[@pvandenassum]

Good video Mike! Primary reason why we stopped using part providers that will not say where items are made, prior to purchasing from them. Cheap is cheap is a heap. So cheap often turns into expensive. "Do it once, do it right" Keep the video's coming you are entertaining even us (DCRovers) who also work on Defender's 6 days a week.

[@BritannicaRestorations]

Well said!

[@123Bilko]

Thanks Mike.......'getting a prick out......not me!' Comment as just ensued me cleaning up the floor of good quality Yorkshire tea! 😂😂😂😂😂😂

[@BritannicaRestorations]

lol!

[@davepearce6359]

Another very interesting and entertaining video. Thanks Mike. Looking forward to the next one. 😊

[@BritannicaRestorations]

Glad you enjoyed it

[@leighriley6277]

Absolutely excellent video mate 👍👍

[@BritannicaRestorations]

Glad you enjoyed it!

[@smorris12]

My memory from running a 300tdi many years ago was that the engine naturally ran cool and any sort of "overheating" was most likely head or gasket.

[@BritannicaRestorations]

From experience, it is the radiator fins rotting out that cause the over heating issues - they never leak but cannot transfer the heat

[@johng9991]

I noticed signs of cylinder over pressure right at the start of your video when you ran water through radiator to water pump. The top hose was visibly bulged mid length, I have had the same symptoms on TD5 discovery in Australia which had the equivalent hose split. I replaced it and next minute I had a volcano from filler tank. Lady had driven it 20km a day like that for 6 months. Thanks for the video.

[@jrgjurgenson3540]

If have had the same problem. at least after YEARS we found the problem. It was a piece of fabric cloth IN a water channel of the Motorblock which blocked PARTLY the waterflow.

[@soylentblue6924]

Always follow your gut feeling Mike? Thanks for the honest vlog👍

[@BritannicaRestorations]

Thanks 👍

[@Viaticboston]

@18.28 Mike gets a free bath 😂

[@orbitaaltube]

Wish I had learnt that lesson about blasting out the holes with the air gun earlier. Learnt my lesson the hard way with Injector bolts on a fiesta and snapped one a few years back. Greetings from Ireland.

[@BritannicaRestorations]

easy done!

[@iceman9678]

You can use a multi-meter + the heat gun to test the fan thermal couple switch as well (MPi Engine). The heat gun easier to handle than a pot of boiling water.

[@lukeevans9698]

Thanks!

[@BritannicaRestorations]

Thanks!

[@rjl110919581]

thank you for share detail video

[@BritannicaRestorations]

You are welcome

[@nigelhumphreysfsuk2833]

Love this channel Sorry but i did laugh out loud when you got a face full of water 😂 that’s the sort of thing that happens to me all the time 😂

[@simonrowlands7472]

Had a td5 in what had gone up like volcano, looking at it it had a new gasket and new head, after asking the customer he said its been to 2 shops before us and they couldn't fix it from boiling, so I took the head off to find a perfect gasket under the new head ,but when cleaning the block I saw a patch in one of the bores ,a cracked block which no one spotted caused by the first overheating quite common on td5s

[@craig_chaznibond452]

The grease on a gasket tip is one of the best tips I've ever used. I bet main dealers never use it.

[@BritannicaRestorations]

Works well!

[@greebo7857]

@@BritannicaRestorations It's how I was taught 45 years ago when there was no RTV.

[@harveysmith100]

Best thing you could have done with asbestos gaskets was put them in the puddle, it probable saved you because it kept the dust down. Interesting video, that was a two mugs of Yorkshire tea that one. There is a tool you can use to smell combustion vapour in the cooling via the expansion tank. Looking forward to the diagnosis when the head comes off. Chinese head? mmm?

[@BritannicaRestorations]

I think the water coming out of the expansion tank was a give away - but the customer said it was boiling over - where in fact it was being forced out under compression pressure - I suppose it looks the same

[@raymondm7813]

Just love your videos Mike. On the thread cleaning I have used a bolt the same thread etc as would normally be used but with a couple of slight angled longitudinal hacksaw cuts, when you put this bolt into the blind hole the cuts pickup rubbish and it's not as harsh as a tap...Thanks for what you do love your style of presenting and for freely giving so much info. PS tried to buy one of the flat steel pry thingey but your out of stock please let us know when there back. Cheers

[@BritannicaRestorations]

Thanks Raymond - yes that works for the taps and I have used it on larger threads - especially oil cooler fittings! Pry bar is now back in stock! Mike

[@raymondm7813]

@@BritannicaRestorations Thanks Mike just bought one :-)

[@Oufg103f]

Great video Mike 👌 it's not looking good. No water no oil, think she maybe toast.👍

[@BritannicaRestorations]

We shall see - there was hardly any oil in this when it came in 2 weeks ago - see part 2 how bad it was inside!

[@weaton25]

I have to say Mike I look forward to each new video that you put out but having say that if I was thinking about buying a Defender seeing the money pits that the last ones have been I think it would put me off unless you can afford to buy one in tip top condition but that is not cheap one reason why I got a Jeep.

[@BritannicaRestorations]

These are old vehicles with old problems that have not been corrected properly in years - They have become a cult vehicle now, and the prices are rising dramatically, so now old restoration projects are being sold for more than I was selling finished vehicles years ago !

[@Landroverguru4]

Im in the same boat with mine i hope to check everything over when ive got a few days hasnt boiled over but every now and then the temp needle almost goes into the red but the sender connector does look a bit corroded so gonna start there i think as its cheap

[@BritannicaRestorations]

Heads and gaskets on these old Tdi's are problems

[@mattluszczak6567]

Hey mike doesnt matter what you do if you remove the pump that p gasket is allways disturbed. Mite take 6 months to 12 to start leaking..

[@BritannicaRestorations]

I know.....

[@grantlaing9281]

Had exactly the same thing on mine, replaced everyting like in the vid, but what i didn't find out till it caused the head gasket to go, was the new radiator was only using half of the radiator, as the other side was blocked off, but it was still circulating, just not enough to keep it cool

[@BritannicaRestorations]

Common fault on Tdi's is the fins falling out and not transfering heat - the old brass ones never seemed to leak

[@aladinynur7915]

Cylinder head got crack. Due to water tank damage by shock absorber. That's the time all water was drained. And the cylinder head got cracked.by over heating

[@billsoucess2448]

Mike mine was overheating long time ago. So I took rad in and between the top rad hose and the bottom rad hose in the rad there's a divider that the coolant goes through rad then comes out the bottom. And my rad guy found a stock toonie sized hole in the divider. So he welded it up and cleaned my rad. So what was the problem was the coolant was just circulating through divider hole 🕳 instead of going through rad and was overheating. Now no problems in 5 yrs

[@BritannicaRestorations]

I have never been fond of these double pass radiators - I have seen them fail too

[@petermclaren7276]

I had a weird cooling issue that I traced to a pebble in the return outlet of the expansion tank.

[@rajithrathnayake9008]

Hey Mike, I really like love your video and gained knowledge about 300tdi. Last month I overhauled and rebuild my defender 300tdi. I also had heating problem before and after rebuild. The cause was thermostat. I used britpart thermostat (ERR3291) with 88 deg rated one. I think thermostat suppose-to close the by-pass line when water temperature at around 88. But I checked the thermostat in a boiling water with thermometer around 88 celsius and it open fully. I boiled water around 100 celsius and insert to thermostat housing without rubber seal and it doesn't close bypass line. I thought thermostat was little bit short. So I bought two more from different local shops. Those two were also same. I live in Sri Lanka, We don't have cool climate below 20. In my part has 27 average. So I removed the thermostat and used nylon plug with small hole(3 millimeter) and reduced the water flow to the by-pass line. Then problem was solved but reaching time to working temperature increased. But it never pass 60% of the gauge. I tried to use thermostat after rebuild and then same happened. So I remove the thermostat and used nylon plug. If there any wrong please let me know. I hope you get anything.

[@BritannicaRestorations]

Interesting - I know if you remove the thermostat completely the engine can overheat Just a idea - but could a local machine shop turn a thin bush to insert into the bypass hole - but a few mm longer?

[@rajithrathnayake9008]

@@BritannicaRestorations The nylon bush around 30mm long and have taper in one end to stop from the flush away. Drilled 3mm hole in middle for small flow line.

[@BritannicaRestorations]

I was curious so i did a video for you kzbin.info/www/bejne/aIStgmdufc5gjNk

[@rajithrathnayake9008]

Thank you very much mike.Best thing ever happened on youtube to me. I'm going to test it again. I hope I can find the problem on my own one. Are there deferent types of thermostat housings used in 300tdi. I don't have any other vehicle to compair.

[@greebo7857]

18:45 I'll assume you'd opened the heater tap, Mike😂

[@BritannicaRestorations]

It's not a series 1!

[@patrickjobling8676]

Definitely a csi situtation .. get the orange saftey cones n tape out .. throw all the bits over the neighbors fence n start agins .. im glad weees worked that out squadron leader.. oh and ya might wanna by ua neigbour a pilth hat what with all these mankeys n stuff .. 😁

[@itolond]

whats hot for a TDI300 in C?

[@SierraEire]

Mike, have you ever tried a head gasket sealant liquid? I haven’t, I’m just curious.

[@BritannicaRestorations]

No they are just get you home cures

[@vincea1401]

As one said below I warmed the pump to check if it works and even when hot it works That is to say when turn outside inside turns also...even when hot

[@vincea1401]

Wy do you say that engine can overheat even without calorstat ? I wanted to try you think if is not useful ?

[@BritannicaRestorations]

Because water will take its easy route and the thermostat has a bypass valve built in, so hot water will not go directly to the radiator but will be recirculated and make the engine hotter

[@andrewhowton1961]

I once had the impeller come loose on a 2.5na, at low speed and temp it worked fine but at higher speed and temperature it would slip and not pump properly. Pull over and cool off then it worked again... it took me a while to figure it out. I assume the metal impeller was expanding enough to slip on the metal shaft at higher temps and loads but was tight enough to move some water at lower temps and loads.

[@BritannicaRestorations]

Yes, the impression given by the customer was no circulation of coolant - so check the rad, thermostat and pump first

[@vincea1401]

Yes this is what I did but if the pump works when cold ans loose power when warm at least the radiator would warm a little In my case sound s like nather inside heater or main radiator warms even when gauge comes close to red

[@christopherssekajugo5223]

Hello,I've got a mix of oil in the water in the reservoir tank.Surprisingly when drain the oil from sump,not even a dot of water. Change 4times the cooler(radiator),fault still occurs. Advise

[@BritannicaRestorations]

What engine?

[@Justus.wood.]

This episode played out like a classic whodunnit book

[@danloosmore8099]

Ha-ha, Saturday night is bath night!

[@BritannicaRestorations]

Is it Christmas already!?!

[@vincea1401]

Hello Mike I afraid I have the same pb as you Pressure un the tank and even water pump works water does not go thrue The heater inside the car does not warms ans thermostat cheked So ????? What appened ?

[@BritannicaRestorations]

Sounds like you have a bad head gasket or a warped/cracked head

[@vincea1401]

@@BritannicaRestorations ok but i don t understand wy my heater does not work anymore and my rad stil cold

[@nigelbarton8350]

If he’s really lucky it could just be gasket- was the block cleaned properly before it was fitted etc? The pressure test puts a LOT less force on the gasket than the compression of a diesel does so it might be able to hold for the coolant test and not hold compression. Also direction of the pressure can be relevant- I’ve seen a failed gasket get “pushed back together “ by a coolant test and hold tight, then let go when compression pushed it the other way. Good luck with it anyway!

[@BritannicaRestorations]

Indeed - the composite gasket must have been acting like a none return valve - at first I was looking for an external leak - possibly the P gasket

[@seanhowell1005]

I had trouble before with over heating it turned out to be heater matrix was blocking up the glow

[@BritannicaRestorations]

I think there has been a lot of sealer dumped into this motor

[@vincea1401]

Hi you mean the heater blocked the water ?

[@chrismiller9740]

Yes those water pump bolts break. I’ve learned to add anti fretting paste as you do when replacing those bolts as well as timing case bolts.

[@BritannicaRestorations]

Right on

[@chrismiller9740]

Is the engine block water galleries blocked?

[@BritannicaRestorations]

No, I suspect they didn't torque the head erectly - wait for part 2

[@kevinbarry71]

What about corrosion inside the block? That could be inhibiting flow

[@BritannicaRestorations]

Part 2 soon!

[@thomasgibbs8559]

Hey mike I’ve got a strange dilemma with my Land Rover it’s a 2.5 naturally aspirated your favourite lol anyway I had the core plugs replaced because 2 of them was leaking had them done and I’m still losing water the mechanic said it could be air in the system because the water in the in header tank dropped. I’ve been driving it and the water level dropped again I put about 1 ltr of water in and it’s still dropping there’s no over heating runs at its operating temperature once it’s warmed up. Strange thing is the waters stone cold when I’ve been running about in it in the header tank. Obviously it smokes when it’s cold with blue/ grey smoke then once it’s warmed up there’s no smoke could you shed any light or give me any ideas what it could be or is it because it’s been drained when the work was done? Tom

[@BritannicaRestorations]

been a while since I looked a a 2.5 but is the hose between the radiator and header tank free from blockages?

[@thomasgibbs8559]

@@BritannicaRestorations I haven’t checked that I will do though and come back to you I just can’t understand why the water is stone cold after an hour of it running. When I squeeze the pipe from the radiator to the thermostat you can hear it in the header tank and the water level drops I might have to do a video for you

[@interestedinstuff9601]

I was just waiting for that hose to spurt... Sorry had to chuckle - had a few face washes myself. Usually the hose or the pressure washer but I think hosing the heater radiator got me once too. 😂

[@BritannicaRestorations]

Glad you enjoyed it! It is funny how there was a trickle of water coming out of the steel pipe - I wonder if radiator seal has been used in the past and blocked the heater ? May explain why there was a new radiator on it?

[@warci]

on a petrol car I'd say: running too lean. I don't know if a diesel can have similar issues? Like too high of an exhaust temp? ha.... and now I watched until the end, ooops

[@arbit3r]

Running too rich is the diesel version of lean on a petrol.

[@timboyle3114]

Would a combustion gas tester have worked on that?

[@BritannicaRestorations]

Possibly - but as it was a new head and gasket fitted in November and low km's you tend to think of other possibilities - it was only when the engine was started cold I realised there was a sever head/gasket problem - I suspect they didn't tighten the head correctly - part 2 will show the shoddy workmanship from 'professional mechanics'

[@shropshireladoutdoors743]

Maybe wrong head gasket blocking the journals causing the head gasket to fail

[@BritannicaRestorations]

I suspect they didn't torque the head correctly - see part two how easy the head bolts were removed

[@shropshireladoutdoors743]

@@BritannicaRestorations your reply gets here faster than your videos I am ex army royal engineers I was a mt driver and worked on many landrovers its why I follow your channel it brings back memories of fixing them with a screwdriver and adjustable spanner

[@gazzafloss]

Mike have you got a "combustion gas in coolant tester"? That's one of the first tests our mechanic will do for an overheating engine. That will save time pointing straight to a head gasket leak or cracks on the combustion chamber side of the head or cylinder block.

[@BritannicaRestorations]

Yes but a new head and gasket were changed in November last and only 3,000 km if that, but when a customer says it is 'boiling over' and considering the prior work done, you think of other possibilities - after all mechanics here are 'professionals' I suspect after removing the head, they didn't torque the head correctly

[@terrortorn]

Ask the owner if there was a man on the wing while driving ... then the cause is obviously Gremlins.

[@richards091]

Has someone used Celit

[@BritannicaRestorations]

Nope!

[@thomasgibbs8559]

Hey mike hope your keeping well what was the end result for this motor did the customer get the work done or did he end up selling it? Mike do you have an email address I need some advise about mine

[@BritannicaRestorations]

Turned out ok - but having starting issues now it is cold - could be down to the low compression [e-mail]

[@thomasgibbs8559]

@@BritannicaRestorations I think I’d be tempted to throw a match to that engine sounds like it’s had it’s day and it’s tired good luck sure a man of your expertise will sort it

[@BritannicaRestorations]

Customer was 'budget restricted'

[@garrydavis3475]

Block jacket sounds clogged probably just passed the pump or dodgy engine gasket next problem temperature gauge??? Confused.com

[@BritannicaRestorations]

Part 2 will show how a profession mechanic put this motor together - new head and gasket in November

[@garrydavis3475]

Britannica Restorations Ltd is the mechanic from Ghana 🇬🇭 I hear their top notch for cardboard and silicon paste head gasket makers

[@kevinbarry71]

Somethings not right with a land rover? Impossible!

[@BritannicaRestorations]

Got me thinking!

[@philipmadhatter4006]

Weak water pump or running out a tooth

[@patrickjobling8676]

That was a mess of funnins squadron leader..😁😎pip pips and carryon

[@BritannicaRestorations]

lol!

[@patrickjobling8676]

@@BritannicaRestorations ..😁

[@888johnmac]

that green 90 seems as neglected as the white ones from the continent that can't be named

[@BritannicaRestorations]

Covid stops the customer from Florida from collecting it

[@kevinbarry71]

Plastic impellers? Turn to BMW if you want to see those

[@BritannicaRestorations]

Fords and a whole lot of imports here have them = did a Ford whatsit a few years back complaining of over heating - checked the pump and there was bits of impeller everywhere

[@andrewpeake1858]

Checked the radiator cooling fins? - They fall out, the cores don't have enough surface area to loose the heat and the engine overheats, it's a common fault. - 23:08 Crankcase pressure getting in the cooling system? - er . . . how's that possible then Mike?

[@retiredppd]

Just because the water poured through the radiator doesn't mean that the lower half of the radiator isn't clogged.

[@BritannicaRestorations]

It was brand new in November - 3,000 km

[@nickboylen6873]

I’ve had a brand new rad years ago that was almost completely blocked with solder. I’ll let you guess the wholesaler brand...

[@noelmcelwee1604]

This man is a dying breed of actual mechanics….. most mechanics that are churned out nowadays are just parts fitters…. Nice work that man

[@noelmcelwee1604]

This man is a dying breed of actual mechanics….. most mechanics that are churned out nowadays are just parts fitters…. Nice work that man

[@BritannicaRestorations]

Thanks!

[@noelmcelwee1604]

@@BritannicaRestorations big hello from Northern Ireland, I just bought myself a P38 converted to a 300tdi and went over to Blyth to pick it up…. Love it

[@noelmcelwee1604]

@@BritannicaRestorations big hello from Northern Ireland, I just bought myself a P38 converted to a 300tdi and went over to Blyth to pick it up…. Love it

[@BritannicaRestorations]

Great!