AJUSA HG or OEM HG?

JDMMA70

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Dec 4, 2006
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Before i start reassembling my head, i wanted to know if i should buy a AJUSA HG its what was on my car, when i pulled the head. Or use the OEM one i got. It feels as if the AJUSA gasket is metal but not a MHG. It doesnt feel as flimsy as the OEM gasket. And ive never heard of this company

Picture.

AJUSA when i took it off the block

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and AJUSA next to my new OEM gasket
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Are there any pros and cons to these gaskets.
 

JDMMA70

Active Member
Dec 4, 2006
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figgie;1073378 said:
HKS
Cometic
Titan

which ever fits the bill. The three I mentioned are mhg ;)

The head hasnt gotten any machining, no money for it, im pretty much taking a friends head off of his 7M (Wasnt blown he did a 1J swap) and putting it on mine because my head im guessing previous owner helicoiled the spark plug hole and that didnt hold because now the theres nothing there but a smooth surface. So thats why im strapped for parts. I managed to get another head the one mentioned above. ARP Headbolts with 6K miles, and an OEM headgasket. I live in an APT complex they dont like us working on our cars like this so im trying to get it back together again. So besides MHG should i be good.


Thanks
~JDMMA70
 

JDMMA70

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Dec 4, 2006
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figgie;1073394 said:
well

considering the length of the 7m heads. Machining is just about a must after taking the head of especially if it has EVER been overheated.

My head didnt blow, never overheated once since ive had the car. As soon as we got the car my dad and i retorqued the head to 75ft lbs, that was back in July or 07.
 

figgie

Supramania Contributor
Mar 30, 2005
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JDMMA70;1073406 said:
Money is tight as stated above i have no money for maching my head.


well I am going to put it bluntly.

It might fix the problem NOW but rest asured that it will come up again in the not so distant future. A little patience goes a long way.
 

Dutch7m

7m for live
Jun 3, 2007
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if you don't have a lot money, use the oem gasket with arp bolts,
but putting the head on without machining will give you problems quickly.
machining the head + oem hg and arp bolts, is alright aslong as you won't uprgraid.
 

JDMMA70

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Dec 4, 2006
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Is this even if i never blew the head period? i pulled the head due to a stripped spark plug hole.
 

JDMMA70

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Dec 4, 2006
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All i ran was intake, exhaust, 20g turbo and boost set to 10psi. im not planning anything higher until i rebuild my motor
 

suprabad

Coitus Non Circum
Jul 12, 2005
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It doesn't matter if you didn't overheat it, just the pressure of a head gasket leak will put low spots in the head.

I understand you're broke, but having it surfaced to make sure its flat is pretty cheap. It sounds like money is only part of it.

I think you're trying to rush it, and I'm reminded of the old saying:

Never enough time to do it right the first time, ...always enough time the second time.
 

JDMMA70

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Dec 4, 2006
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suprabad;1073432 said:
It doesn't matter if you didn't overheat it, just the pressure of a head gasket leak will put low spots in the head.

I understand you're broke, but having it surfaced to make sure its flat is pretty cheap. It sounds like money is only part of it.

I think you're trying to rush it, and I'm reminded of the old saying:

Never enough time to do it right the first time, ...always enough time the second.

Alright one more time i get what youre saying but

Did anyone note that i stated that my HEAD did NOT blow. Unless youre talking about me just from pulling it.

second i have to move this car soon i live in an apartment complex with no garage or space for this as is it, we cant have cars sitting for a certain ammount of time.
 

suprabad

Coitus Non Circum
Jul 12, 2005
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If you had no problems with the head...why did you pull it? A bad plug hole could have been fixed without pulling the head, especially if you are going to mickey mouse it anyway.

And what figgie is telling you is correct i.e. you can pull a non-blown or undamaged head off, and it will likely be warped and may not seal upon re-installation.

Do you want the truth, or do you want validation of your incorrect belief?
 

JDMMA70

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Dec 4, 2006
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suprabad;1073444 said:
If you had no problems with the head...why did you pull it?

And what figgie is telling you is correct i.e. you can pull a non-blown or undamaged head off, and it will likely be warped and may not seal upon re-installation.

Do you want the truth, or do you want validation of your incorrect belief?

My spark plug hole got stripped. Cant figure out how or why, but it looked like previous owner stripped it. So because of this instead of attempting to rethread it not that its off, im just going to take the head off my friends 7M make sure its straight and flat, use one of those gaskets i mentioned, arp bolts to 75 or 80ft lbs. All i asked about were the opinions of the gaskets and if anyone heard of the one that was used on my car. Im not doing this by myself i have my father whos helping and teaching me along the way. When this whole thing started i had $145 in my pocket, i was looking for the best deal possible friend said he give me the head off his 7M, arp bolts, and an oem gasket for $75 so i took it as i need a running car.
 

suprabad

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Jul 12, 2005
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If you insist on doing it this way, you will be better off with the oem gasket because it is composite and will conform better to less than perfect gasket mating surfaces than any mls or mhg can.
 

plaaya69

87T Supra
Nov 18, 2006
947
7
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Lake County, IL
I would use the OEM headgasket. If you dont get the head resurfaced then inspect it and clean it very good.

I spent $40 to get mine resurfaced. I just had to remove the camshafts and reinstall them and torque down the caps to spec's.
 

JDMMA70

Active Member
Dec 4, 2006
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Houston
suprabad;1073452 said:
If you insist on doing it this way you will be better off with the oem gasket because, it is composite and will conform better to less than perfect gasket mating surfaces than any mls or mhg can.

Alright look i KNOW it would be best to get the head and block prepped for a MHG and believe me if i had the money i would do but stuff like that doesnt come cheap, and i have space to be pulling the motor. Some people dont have money just sitting around. If my spark plug hole never got stripped i wouldnt have had to pull the head and the car would be running just fine right now. However as they say shit happens, and it just happend to a poor kid. If my headgasket ever blows then yeah that will be the time hopefully when i have more money, i just need this to hold up until March of next year.