Head bolts.... re-torque?

timmo · Post by **timmo** » Mon Apr 09, 2007 9:24 pm

I've heard conflicting opinions about re-torqueing the head bolts after running the engine when doing headgaskets What do people think?

timmo

ohsuby · Post by **ohsuby** » Mon Apr 09, 2007 9:42 pm

yesa its true you do have to re torque them after 100k or so make shore its cold but i have not done that many times and there still goin after 100,000k or so.....

AndrewT · Post by **AndrewT** » Mon Apr 09, 2007 10:01 pm

Yeah it's best practice to do that. Says so in every workshop manual I've had for various cars.

waggaclint · Post by **waggaclint** » Mon Apr 09, 2007 11:32 pm

sometimes yes all engines are different and it also depends on what sort or brand of gasket your using and what type of headstuds the engine has...ive replaced alot of heads in my time (im a mechanic) and there arnt many engines around these days that you have to retension...if ya use a good quality gasket and hylomar you shouldnt have a problem...but if a gasket set etc says to retension then yes retention it......

timmo · Post by **timmo** » Tue Apr 10, 2007 2:27 pm

gaskets for my EA82T. what brands are good?... i've got it pulled apart just need to get the parts. was just going to see what repco had.

timmo

Xtreme_RX · Post by **Xtreme_RX** » Tue Apr 10, 2007 2:40 pm

When I did my head gaskets on my EA82T I used genuine.
Torque them up 15NM more than factory specs list & gave them a good spray of holymer. Had no problems at all. The gaskets have been in the car about 16 Months now & I run 15 PSI off road & 8 PSI on road. Re-torqueing is very difficult with the EA82T as you need to pull the cam casing & timing belts off to do it. Not worth the effort. Boxer Motor service (AKA The Subaru Shop) did this to all the EA82T head gaskets they did.

waggaclint · Post by **waggaclint** » Tue Apr 10, 2007 3:38 pm

timmo wrote:gaskets for my EA82T. what brands are good?...

timmo

as xtreme said genuine are good ive also found ACL products to be very good to...

timmo · Post by **timmo** » Tue Apr 10, 2007 6:01 pm

Xtreme_RX wrote: ...gave them a good spray of holymer. Re-torqueing is very difficult with the EA82T as you need to pull the cam casing & timing belts off to do it. Not worth the effort...

yeah i re-torqe would be a PITA thats why I wanted to see what others did. What is holymer? spray on sealer or something?

waggaclint wrote:as xtreme said genuine are good ive also found ACL products to be very good to...

Does repco stock ACL? Its just that i can get a good discount at repco.

cheers
timmo

Xtreme_RX · Post by **Xtreme_RX** » Wed Apr 11, 2007 8:11 am

timmo wrote: What is holymer? spray on sealer or something?

Holymer is a gasket joining compound. It is the best product out there.

tim_81coupe · Post by **tim_81coupe** » Wed Apr 11, 2007 9:37 am

Its spelt Hylomar... its an ACL product.

steptoe · Post by **steptoe** » Wed Apr 11, 2007 11:50 am

and was made for Rolls Royce in the first place , allegedly

timmo · Post by **timmo** » Thu Apr 12, 2007 7:03 pm

Got the heads pressure tested & re-conned today. No cracks showed up so I was happy about that. I got genuine head Gs.

timmo