HG compression question

[skid542]

So anybody following my overheating thread knows that I killed the drivers side HG. The other side seems to be fine, I'll do a comp. test but the plugs look to be dry as a bone and in good shape.

So I only want to replace the one headgasket, if ain't broke - don't fix it type thing. In reading around I got the feeling that there are different thickness HG for the 22T, is this correct? If so, how much does a HG compress down, percentage or thousandth's, so that I can measure the good side and get the appropriate new gasket. I would like to avoid having uneven compression ratios.

Does anybody see any other problems with doing just one HG?

Thanks in advance.

[Matt Monson]

The Ej22T HG is the same thickness as the Ej22E HG if we are talking about our 90-94 cars. It's the laters ones for the ej22 cars that got thinner.

You can do just one head gasket, but why? I personally would pull the engine to do the HG. Once it's out, I would do the head gaskets (pl) water pump and possibly oil pump. I would also closely inspect all idler pullies and replace any that hang up at all.

You can do it with the engine in the car, and I am sure that several people will chime in and tell you how they do it that way. To each their own. I don't care about being right. I am just telling you what works best for me...

[skid542]

Thank you Matt. I was hoping you would hop in with your expertise.

I agree that it would be best to pull it and do a 'rebuild' on all the pumps and idlers and such. But right now I simply don't have the facilities and time to do this . The engine also only has 125k on it so I'm hoping all is well. I will be checking all the idler pulleys and such, and if need be will replace them.

I will getting a new shortblock down the road to do a full rebuild on and will address those issues then.

Thank you again though.

[555BCTurbo]

I agree with Matt, but I also understand the situation that you are in...

I'd say do the best thing that you can with your time/money/facilities...


Best of luck getting your baby back running!

[Matt Monson]

I have to confess that I didn't read the other thread. We absolutely do what we have to do to survive...