Is new head gasket a must?

lethalwithasupra · 09-27-2005, 11:46 AM

what appeared to be a metal head gasket ( a thick metal gasket between two thin gaskets, held together by 4 rivets ) came out of my supra. mostly it was the corrosion and overheating, but one of the thin layers was cracked between bores 5 & 6. 3 & 4 loooked like they were just about ta go thru as well. is a mhg really the end-all ?

understanding that my car is about as well taken care of as you'd expect ...

suprra_girl · 09-27-2005, 12:35 PM

have you put it back together yet?

can you take pics of the block and head surfaces (clean preferably)

lethalwithasupra · 09-28-2005, 08:14 AM

me ? yea its together, and the boss might have thrown the gasket out. i was going to frame it and the one i crimped when it went together the first time and hang them both on my wall.

suprra_girl · 09-28-2005, 12:11 PM

i would say machining was not up to scratch for the mhg

just at a guess

lethalwithasupra · 09-30-2005, 08:14 AM

half the gaskets on the manifolds were so old they splintered taking them off. don't know if thats a good thing but when i saw it i smiled.

65 alright as a torque setting ? 58 was recomended, so we went a little higher.

SupraMan1784 · 09-30-2005, 12:51 PM

thats a badd thing if they splintered coming off...they musta taken a beating over the years

mrnickleye · 09-30-2005, 11:42 PM

72 lb ft of torque is what everyone recommends for the head bolts. You DID use new bolts, didn't you !!??!! Hell, only $46 fron dealer. Where did you get your gasket set??? Only $155 online, 2 day mail, no shipping or tax, Ishino Toyota factory oem. You are replacing all the hoses, right??

09-27-2005, 11:46 AM	#1
lethalwithasupra 3" Exhaust Join Date: Sep 2005 Location: south cantebury Posts: 112	related question what appeared to be a metal head gasket ( a thick metal gasket between two thin gaskets, held together by 4 rivets ) came out of my supra. mostly it was the corrosion and overheating, but one of the thin layers was cracked between bores 5 & 6. 3 & 4 loooked like they were just about ta go thru as well. is a mhg really the end-all ? understanding that my car is about as well taken care of as you'd expect ...

09-27-2005, 12:35 PM	#2
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	have you put it back together yet? can you take pics of the block and head surfaces (clean preferably) __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

09-28-2005, 08:14 AM	#3
lethalwithasupra 3" Exhaust Join Date: Sep 2005 Location: south cantebury Posts: 112	me ? yea its together, and the boss might have thrown the gasket out. i was going to frame it and the one i crimped when it went together the first time and hang them both on my wall. __________________ So I bought this old Honda bike, an NSR250. Bit of a street racer, I guess. I'm told they're fast. Delivering it home with a friend driving the Supra for the first time. I drop gears and make a scream from the twin pipes flowing down this pony's flanks and it takes off like it's tail's on fire. I look back when the Honda gets to its tap-out and the Supra's only two lengths behind. No one I've let ride my bike has told me its slow, they've all loved the thing. That car is a good thing indeed.

09-28-2005, 12:11 PM	#4
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	i would say machining was not up to scratch for the mhg just at a guess __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

09-30-2005, 08:14 AM	#5
lethalwithasupra 3" Exhaust Join Date: Sep 2005 Location: south cantebury Posts: 112	half the gaskets on the manifolds were so old they splintered taking them off. don't know if thats a good thing but when i saw it i smiled. 65 alright as a torque setting ? 58 was recomended, so we went a little higher. __________________ So I bought this old Honda bike, an NSR250. Bit of a street racer, I guess. I'm told they're fast. Delivering it home with a friend driving the Supra for the first time. I drop gears and make a scream from the twin pipes flowing down this pony's flanks and it takes off like it's tail's on fire. I look back when the Honda gets to its tap-out and the Supra's only two lengths behind. No one I've let ride my bike has told me its slow, they've all loved the thing. That car is a good thing indeed.

09-30-2005, 12:51 PM	#6
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	thats a badd thing if they splintered coming off...they musta taken a beating over the years __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

09-30-2005, 11:42 PM	#7
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	72 lb ft of torque is what everyone recommends for the head bolts. You DID use new bolts, didn't you !!??!! Hell, only $46 fron dealer. Where did you get your gasket set??? Only $155 online, 2 day mail, no shipping or tax, Ishino Toyota factory oem. You are replacing all the hoses, right??

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