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97 eclipse

Year
1997
Model/Trim
Mitsubishi Eclipse GST

JeffGS-T97

Supporting Member
631
368
Mar 22, 2019
Muncie, Indiana
totally off topic and i appologize but, i love your valve cover, i want to paint mine white but idk which kind of paint to use that wont burn off but still looks good under heat.
I think powder coating would be the best route. I used ceramic and it discolored slightly but it is seeming to hold under heat though just a shade darker than it started.
 

TheRippedNerd

Proven Member
74
48
May 1, 2021
Denver, Colorado
I think powder coating would be the best route. I used ceramic and it discolored slightly but it is seeming to hold under heat though just a shade darker than it started.
awesome thank you for that info, ill look into powder coating then
 

JeffGS-T97

Supporting Member
631
368
Mar 22, 2019
Muncie, Indiana
Ran into a snag damn ARP nut got slightly rounded. Used a cheap 12 point 13mm socket to save time so i didn't have to track down where i set my good one and now im paying for it. Need to get a turbo socket extractor to finish the job. Lesson to learn here, use the highest quality tools you have on the internals!!!LOL

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JeffGS-T97

Supporting Member
631
368
Mar 22, 2019
Muncie, Indiana
On a better note
Yikes!! Didn’t know the 2g’s use 13mm nuts. Good luck getting it out man. I’ll be praying to the dsm Gods 🙏
Thanks! All good man been down this road 1 other time but i wasn't the idiot in that story LOL. I just will need a new ARP nut to replace the one im going to destroy with the extractor. On a better note im getting both surfaces decked for 80 bucks. Its good to have a machine shop buddy LOL
 

JeffGS-T97

Supporting Member
631
368
Mar 22, 2019
Muncie, Indiana
and i just had the shop all cleaned up yesterday o well

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JeffGS-T97

Supporting Member
631
368
Mar 22, 2019
Muncie, Indiana
Dang it! I’d just go oem composite. Ran a copper hg on my 2g for a long time without any issues at 25-28psi.
I found a copper gasket for 105$ is that good or is it too good to be true? I started researching copper hg's and they form to the surfaces really well I think I want to go that route. You used to drag your 2g and it held up well at 400whp with copper. Sounds like a winner.
 

TK's9d2TSi

Supporting Member
5,096
2,272
Sep 11, 2017
Cincinnati, Ohio
Not sure which brand I was running because I had a shop do it back in the day, turbotrix. But yeah it held for more than 60k. It was my daily and drag strip’d almost every weekend.
 

DSMPT

DSM Wiseman
1,475
1,022
Jun 12, 2014
Japan / Mexico, Arizona
I found a copper gasket for 105$ is that good or is it too good to be true? I started researching copper hg's and they form to the surfaces really well I think I want to go that route. You used to drag your 2g and it held up well at 400whp with copper. Sounds like a winner.
Jeff, I don't recommend a copper gasket for street cars or unless you have the block or head SS o-ringed. Copper gaskets is very good to seal cylinders if you have the block/head SS o-ringed w/ groove. but generally it would give you more sealing issues than composite or MLS gaskets, especially on coolant and oil passages.
If the car would be used often on streets, it may bother you often.
 

JeffGS-T97

Supporting Member
631
368
Mar 22, 2019
Muncie, Indiana
Jeff, I don't recommend a copper gasket for street cars or unless you have the block or head SS o-ringed. Copper gaskets is very good to seal cylinders if you have the block/head SS o-ringed w/ groove. but generally it would give you more sealing issues than composite or MLS gaskets, especially on coolant and oil passages.
If the car would be used often on streets, it may bother you often.
Thank you Hiroshi that really helped a bunch. I will steer from copper as suggested. I dont really beat on the car but id really like to put this HG issue to bed for several years with a good dependable HG.
 

JeffGS-T97

Supporting Member
631
368
Mar 22, 2019
Muncie, Indiana
In the process of cleaning the cooling system. Before the next start up i will be changing the oil as well. I didnt find any fluids mixing but that doesn't mean its not there its probably just not noticeable.
Got some other gaskets coming and i need a replacement bolt head for 1 of my ARP studs and of course a new head gasket.
 

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JeffGS-T97

Supporting Member
631
368
Mar 22, 2019
Muncie, Indiana
Having trouble finding this guy here. I think when the HG went and or the head gapped, boost went into the cooling system and blew out a weak spot on the male end that plugs into the therm housing plumbing. The flange section seems to have rotted away and the gasket on it was beyond destroyed.
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Last edited:

TK's9d2TSi

Supporting Member
5,096
2,272
Sep 11, 2017
Cincinnati, Ohio
Having trouble finding this guy here. I think when the HG went and or the head gapped, boost went into the cooling system and blew out a weak spot on the male end that plugs into the therm housing plumbing. The flange section seems to have rotted away and the gasket on it was beyond destroyed.
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Yeah I’d source a new/used one. See if performance part out has one.
 
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