D2 TD5 Head Gasket

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Originally Posted by Blknight.aus

NO machining head.
NO welding head.

any of that means that the head needs to have its extra gucchi face hardening redone. Weve got a place on base that can do it but you do not want to know about the price. it is almost cheaper to buy a new head and build it up (IT would be for me as I can do all my own head assembly work) and then there is no guarentee that the initial machining will still be inspec after the process.

There are some places that can do it and do it well but they are going to be few and far between and will more than likely charge the earth to do it.

The choice of dowels is much of a muchness. I prefer the steel ones but theres no reason not to use the plastic ones. its the same logic as to why I prefer a steel brush bar as opposed to the new plastic ones.

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Don't use the steel dowels on an early head, the later D2a update model is different and has steel dowels, so is OK to use them, but the early D2 has to have the plastic dowels used.

There is info on here somewhere about it, so check before using the steel dowels if you have an early TD5.

Baz.

Redback $ 2,000 is a good price !!
No one I spoke to was as low as that.
They were all around $2,500 to $ 2,800 if the head was okay.
Most wanted to machine the head or replace it.
I have used the OAT coolant and changed it regularly.
I believe it started when the coolant was changed and the workshop broke the blead screw on the top hose.
I drove home 400k's and discovered this when I drove in the garage.
I was lucky to get home. Since then it has not been the same and has steadily shown increasing pressure problems in the cooling system.
I have had enough cars with blown head gaskets to know the signs.
I fixed all the others myself but this one is out of my league.

Do other marques do head gaskets as often as all (non-Series) Land Rovers seem to do? :(

I don't hear it about Jap 4WDs.

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Originally Posted by Discopug

Redback $ 2,000 is a good price !!
No one I spoke to was as low as that.
They were all around $2,500 to $ 2,800 if the head was okay.
Most wanted to machine the head or replace it.
I have used the OAT coolant and changed it regularly.
I believe it started when the coolant was changed and the workshop broke the blead screw on the top hose.
I drove home 400k's and discovered this when I drove in the garage.
I was lucky to get home. Since then it has not been the same and has steadily shown increasing pressure problems in the cooling system.
I have had enough cars with blown head gaskets to know the signs.
I fixed all the others myself but this one is out of my league.

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Yep i had a look at the Rave CD and after reading up to step 29, i decided that an expert would be a better option:)

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Originally Posted by p38arover

Do other marques do head gaskets as often as all (non-Series) Land Rovers seem to do? :(

I don't hear it about Jap 4WDs.

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Don't know Ron, i do know that the Honda Civic is prone to cracking heads.

I think it comes down to the early TD5s don't like being overheated at all and have very fine tolerances, most engine will tolerate some overheating over it's life, but i guess the TD5 doesn't.

Baz.

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Originally Posted by Redback

I think it comes down to the early TD5s don't like being overheated at all and have very fine tolerances, most engine will tolerate some overheating over it's life, but i guess the TD5 doesn't.

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Neither do 4.0/4.6 V8 engines. :(

I dont think most engines like being overheated at all to be honest. people dont generally notice until its too late, and if it has happened you cant really blame the engine.....

I have had it happen on a few cars too.

most expensive and frustrating one was my Lancia Integrale race car in qualifying at Silverstone, where the feed hose split at the back of the engine, and it lost all the water... I didnt catch it and ended up having to have 30thou skimmed off the head face! (was a brand new crate engine that we had just built and had only done about 3 events... had to take the next week off work to build it again for the next weekends races)

Also had a 205gti burst a hose and need a head gasket afterwards.

I have also just had to put a new head on Sams vitara as it overheated and cracked the head badly....

I think if you dont catch them straight away your in trouble...

Pete

You don't hear it in jap engines because if something goes wrong you replace the engine.Over heated or snapped timing belts etc mean replacement.If you think that LR parts are dear they are nothing compared to jap parts,any of the modern engines would cost more to rebuild than what the car is worth.Thats why I sold my jap cars and bought LR's. Pat

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Originally Posted by p38arover

Do other marques do head gaskets as often as all (non-Series) Land Rovers seem to do? :(

I don't hear it about Jap 4WDs.

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yep mitsu 2.4s and 3l engines seem to do the head anywhere between the 80K and 120K mark.

the early toymota 4.2l 6cyl TD was as bad as theTD5 is alleged to be.

and one of the guys at work whos a holden nut was telling me about one of the v6 commodores that would regularly take out one of its heads.

Quote:

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Originally Posted by p38arover

Do other marques do head gaskets as often as all (non-Series) Land Rovers seem to do? :(

I don't hear it about Jap 4WDs.

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The guy who brought my 110 wanted it because he had 3 Mitsi Paj's fail in a row. (2 Heads, 1 conrod out the side of the block),

I think it is a reality that the alloy motors will do this sooner than later, but I have never found so many variations by specialists as to how best to do the repair.