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Is changing the head gasket a big job?? 

 

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 Post subject: Is changing the head gasket a big job??
Posted: Sun Feb 20, 2005 8:30 pm 
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Im not sure just yet but I suspect I have done the head gasket as it now has a lumpy idle and no.2 spark plug tell me its lean on that cyl.
That or there is something else causing the misfire at idle... spark is fine, and i cant find any vac leaks.
In the past it has got hot on a few occasions so not with the turbo I imaging it has opened up.
manifolds aside, is it tricky to get the head off? And what about the chain? should I just tie it up out of the way?

And, whats a good head gasket for turbo use? Any metal gaskets available?
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Posted: Sun Feb 20, 2005 9:52 pm 
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removing the head is not a particularly hard job just take it slowly and note what goes where,, just cable tie the chain to the gear so you dont have to reset it later,,, as for the gasket type i couldnt tell you....

 

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Posted: Sun Feb 20, 2005 9:58 pm 
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make sure when you lift the head off you don't let it hit the chain guides they break very easily

 

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Posted: Sun Feb 20, 2005 10:20 pm 
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its a peice a piss. Choco and I ripped one off in about 1/2 an hour. AU head gaskets are steel, so that would be a good starting point

 

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Posted: Sun Feb 20, 2005 11:02 pm 
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Cool, sounds easy. Are the AU gaskets the same fit as EA?
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Posted: Sun Feb 20, 2005 11:12 pm 
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CHEF wrote:
Cool, sounds easy. Are the AU gaskets the same fit as EA?


YES !! Steel as in multy layer...

 

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Posted: Mon Feb 21, 2005 7:27 am 
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yeap the thin 1.2mm steel head gasket is the way to go over the ea-ed 4.0mm cork gasket

head gasket change easy job
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 Post subject: Re: Is changing the head gasket a big job??
Posted: Mon Feb 21, 2005 9:59 am 
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CHEF wrote:
is it tricky to get the head off? And what about the chain? should I just tie it up out of the way?


Because of its size the head can be a little awkward to lift off, easier with two people, as already said be careful lifting it over the chain guides. The chain itself is no problem as it is impossible for it to drop of the crankshaft, so a cable tie around the camshaft sprocket is all that is needed to ensure everything stays as it should.

 

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Posted: Mon Feb 21, 2005 1:44 pm 
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Spider_GT wrote:
yeap the thin 1.2mm steel head gasket is the way to go over the ea-ed 4.0mm cork gasket

head gasket change easy job


Will it raise the compression being thinner? Or does the old cork one compres down to 1.2mm?
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Posted: Mon Feb 21, 2005 4:55 pm 
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Make sure the head bolts are replaced, you cant get pre AU bolts anymore as the others were not as good. While doing the head gasket it is a good idea to have the head tested, machined if needed and the valve stem seals replaced. Another wise thing to do is have the radiator professionally cleaned/flushed.
Shortly after the head is refitted and engine ran relace the oil, oil filter and coolant. No point putting in new coolant or new oil straight after as it has to be replaced anyway.
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Posted: Mon Feb 21, 2005 7:17 pm 
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like the others have said be careful not to brake the plastic timing chain, also don’t forget to undo the bolt on the front right side of the head, it holds the top of the guide. Also get something to hold the cam gear, when I did mine I also assumed that the chine couldn’t slip off the bottom gears, but it did, when I got it all back together it was three teeth out.

Good luck.
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Posted: Mon Feb 21, 2005 7:42 pm 
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Spider_GT wrote:
yeap the thin 1.2mm steel head gasket is the way to go over the ea-ed 4.0mm cork gasket

head gasket change easy job



cork head gasket you say???????? cork rocker cover gasket maybe. but not head gasket

 

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Posted: Tue Feb 22, 2005 10:25 am 
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tjb45 wrote:
like the others have said be careful not to brake the plastic timing chain, also don’t forget to undo the bolt on the front right side of the head, it holds the top of the guide. Also get something to hold the cam gear, when I did mine I also assumed that the chine couldn’t slip off the bottom gears, but it did, when I got it all back together it was three teeth out.

Good luck.


It is not possible for it to slip of the crankshaft sprocket as there isn't enough room for it to drop and clear the teeth on the sprocket. I have done several head gaskets and never seen this happen. If yours did fall off then I would suspect that the bottom chain guide is missing.

 

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