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maxhag
1st January 2008, 08:12 PM
I just want to confirm what the HEAD TORQUE settings for a 4A-C.

I found this, and it's differant to what members on this forum have told me..... And it says it's the same for 4A-C and 4AGE....

http://aarc.epnet.com/application/8586/8586.htm

http://www.ae86drivingclub.com.au/dcimages/4/8/4/3/161800.jpg

Anyone got GENUINE TOYOTA specfications??

thanks

J Riftin

Jonny Rochester
1st January 2008, 08:39 PM
For AE111 4A-GE: 30N.m + 90 degrees, + 90 degrees.

It would be safe to use the same spec for all 4A. Otherwise around 45ft.lb. I don't have the 4A-C specs right now.

dr1ft-pig
1st January 2008, 08:48 PM
would u use those same settings on a ae101 4age 20v with 0.5mm HG??

Jonny Rochester
1st January 2008, 08:51 PM
Yes I would. But when you buy a head gasket, it usually comes with a bit of paper with recomended torque settings. And make sure the bolts have cleaned threads, often done on the wire wheel. And lube the bolts also.

Gunner
1st January 2008, 10:25 PM
yeah and dont forget to lube the washers, both sides.

ae86trueno
1st January 2008, 10:28 PM
when i torque down TRD head gasket's (0.5,0.8) i use the Bible's recomendations
200-400-600-730 kg-cm,

Ben.

maxhag
1st January 2008, 10:35 PM
everything i have seen in measured in ft-lbs. How do you convert that?

Jonny Rochester
1st January 2008, 11:35 PM
1 pound = 0.45 kg
1 foot = 12" = 0.3048 meters


1 ft.lb Torque = 1 foot x 1 pound = 1 pound x 1 foot = 0.45 kg x 0.3048 meters = 0.138 kg.m

So:
conversion factor is 0.138 from ft.lb to kg.m
conversion factor is 13.8 from ft.lb to kg.cm

dr1ft-pig
2nd January 2008, 12:02 AM
<div class='quotetop'>QUOTE (ae86trueno @ Jan 1 2008, 10:28 PM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=461553)</div>
when i torque down TRD head gasket's (0.5,0.8) i use the Bible's recomendations
200-400-600-730 kg-cm,

Ben.[/b]


<div class='quotetop'>QUOTE (Jonny Rochester @ Jan 1 2008, 11:35 PM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=461607)</div>
1 pound = 0.45 kg
1 foot = 12" = 0.3048 meters


1 ft.lb Torque = 1 foot x 1 pound = 1 pound x 1 foot = 0.45 kg x 0.3048 meters = 0.138 kg.m

So:
conversion factor is 0.138 from ft.lb to kg.m
conversion factor is 13.8 from ft.lb to kg.cm[/b]


so what is the measurement i have quoted above work out in ft/lb

i would love to know as it would be very handy when/if i blow a headgasket

Jonny Rochester
2nd January 2008, 12:14 AM
For AE111 4A-GE: 22 ft.lb + 90 degrees, + 90 degrees.

or

14.5 - 30 - 43 - 53 ft.lb

maxhag
2nd January 2008, 12:48 AM
well iam still not sure.

Johnny, you say 22ft-lb +90deg +90deg

The chart says 40 47ft-lbs.....

Is the 2 90deg turns making up the 22 odd ft-lbs?

I guess it will say on the headgasket, yeah?

Gunner
2nd January 2008, 09:07 PM
imo, not that many people care lol. but go off what the little spec sheet says that way u can blame the manufacturer if it goes wrong, and also its the right spec for that particular type of gasket

dr1ft-pig
2nd January 2008, 09:13 PM
my trd gasket didnt come with specs

Gunner
2nd January 2008, 09:27 PM
yeah, i thought they would, im guessin they're simalr to the cometic gaskets?