View Full Version : Changing Head Gasket RIGHT NOW, PLS HELP! with pics.

08-16-2002, 06:28 PM
Okay i just got my head gasket in the mail, i can only find the australian service manual for the s14 sr20det, but my motor is a s13 blacktop, does anybody know if they share the same torque specs? or the pattern for taking off the bolts? Or does anybody know where i could get this info for my motor?

Thx in advanced, how long will this take me to change, and how much trouble will it give me??

Picture time
Cleaned up that engine bay, before and after shot for yahs,
Now that's butter!

08-16-2002, 06:31 PM
I think heavy throttle has the pattern to use on thier website. I remember posting the correct torque valvues and procedures so search and see what you find. Otherwise go out and buy a chilton manual for a 91 sentra ser.

if its a metal headgasket dont go above 85ft/lbs.
if its a stock one, follow Nissans procedure to a "T"

08-16-2002, 07:25 PM
It's a metal one, 1.2mm, damn Greaser you have a lot of posts, i've gone back like 8 pages and still can't find your post about it, and there are even more posts about the headgasket,

08-16-2002, 07:43 PM
The S14 Specs are the same. You can use that manual for almost everything in the engine. If you are putting on a metal head gasket that is thicker than 1mm, you are gonna feel the bolts stop before you get to the stock torque specs. When you feel them not wanting to turn anymore, DON'T TURN THEM ANYMORE. If you do the old 90 degrees and then another 90 degrees thing, you'll probably only get one 90 out of it with a 1.5mm head gasket.

08-16-2002, 07:44 PM
Let me know how it goes with the headgasket.. =) im curious how difficult it is. BTW what made you decide to change it? Are you going to be running a different size turbo? or are you doing it just because the motor is out.

Btw nice job cleaning your engine bay! http://forums.freshalloy.com/ubbthreads/images/icons/grin.gif

08-16-2002, 08:00 PM
hahaha alot of posts.......

yeah with a metal you wont get that last 90 degree turn on any of them (without pulling the threads out)

MY RECOMENDATION IS DO NOT GO PAST 80 FT/LBS !!!!! on the head bolts .....my head lifted on cyl #4 cuz they went "soft" in the tightenting procedure and i was at 85ft/lbs. the bolt that went soft pulled threads out and is where the headgasket blew on my high hp motor.

08-16-2002, 08:18 PM
I ripped threads out of my last block, and I junked it. What did you do, Greaser?

08-16-2002, 08:48 PM
i didnt rip them out......one did go "soft" and i stopped turning at 85 ft/lbs.

i'm gonna see iff the block can be used with bigger studs than stock....if not i'll helicoil it at the race shop.

08-16-2002, 09:24 PM
Damn, this is starting to look a lot more complicated than i thought it would be, the service manual is so hard to read, i'm not mr. mechanic, and all this stuff about 90 degree turns and bolts going soft is starting to get me nervous, just looking at the motor makes my brain hurt, Greaser you think you could help me out with a little list of stuff to take off, and in a lil order? just something to get me started, that's my biggest prob, if not don't worry, i might pay somebody to change this before i ruin my motor.

Why couldn't nissan just make a service manual like honda does?!?!

I have dreams of getting this car on the road, and nightmares of my car talking to my motor, "GET IN MY BELLY!!!"

08-16-2002, 09:39 PM
I dig your engine stand http://forums.freshalloy.com/ubbthreads/images/icons/smile.gif

08-16-2002, 10:09 PM
To count, we have probably torqued more than 30 SR heads until now, 1.1, 1.2, and even 1.5mm A'pexi metal gaskets, no problems using manufactur 90 90 torque spec with stock head bolts.

Maybe our good hug and kisses to the motor helps to clam the block down. http://forums.freshalloy.com/ubbthreads/images/icons/smirk.gif

08-16-2002, 11:43 PM
wayne i say "got damn" cuz i was at 85ft/lbs as soon as i started the last 90 degree turn.

the guy at the machine shop laughed at me when i said i wanted studs welded to the webbing of the block...... http://forums.freshalloy.com/ubbthreads/images/icons/wink.gif

110ft/lbs of torque here i come(or not)...that should keep the power inside the cylinder bore http://forums.freshalloy.com/ubbthreads/images/icons/tongue.gif

08-16-2002, 11:47 PM
dang i dont know how to give a list of things......theres the coolant lines under the manifold that need to come off, so might was well pull the intake manifold, then the oil/water feed/return lines on the turbo need to come off

DONT forget that little 10mm bolt under the CAS i've seen someone bash up the front cover of an SR trying to take the head off and forgetting this bolt.

cams have to come out, so the sprokets need to come out.....you got a 1" open end wrench? you'll need tools galore. i'd say pay someone, just bring them the motor on the stand and it should be easy.

08-17-2002, 01:21 AM
Greaser, 2nd 90 doesn't take that much. I would 'guess' you are pretty close it should be about 85-90 ft. lb.

08-17-2002, 02:12 AM
I did mine at 90 as well with the greddy 1.2mm gasket, same as wayne, no problems no streching, did it twice.

08-17-2002, 11:16 AM
Yah i think i'm ganna have to pay somebody to do this, anybody here live in toronto canada? or know somebody in toronto that does house calls? as you can see from my engine stand money is a slight issue. http://forums.freshalloy.com/ubbthreads/images/icons/frown.gif