Heads

Anonymous · Post by **Anonymous** » Sun Mar 13, 11 5:34 am

Now I have run in the motor does anyone know what tourqe settings I need to pull down the heads they are 340 ally heads or does it depend on the make etc

Anonymous · Post by **Anonymous** » Sun Mar 13, 11 4:05 pm

Well , i've never bothered to re-torque heads & no issues.................i'll await the bashing.

Anonymous · Post by **Anonymous** » Sun Mar 13, 11 4:41 pm

It all depends on gasket material and bolt specs?

Always a good idea with Ali heads after 500 miles!

Good luck Si.

Anonymous · Post by **Anonymous** » Sun Mar 13, 11 7:25 pm

Cometic (spelling) gaskets with ARP head bolts,I was told before and kiwi said to tourqe them down after the first run once cold

J Clark · Post by **J Clark** » Sun Mar 13, 11 7:59 pm

Never re-checked mine after engine build or after doing a head gasket change........ but if you want to re-check, surely just repeat what was done when first fitted (in correct sequence & torque according to workshop manual)....

Anonymous · Post by **Anonymous** » Sun Mar 13, 11 8:04 pm

J Clark wrote:Never re-checked mine after engine build or after doing a head gasket change........ but if you want to re-check, surely just repeat what was done when first fitted (in correct sequence & torque according to workshop manual)....

thanks mate I was thinking rework the origional tourqe sequence.

Wouldent do any harm just to retourqe as a precation (I'm sure somone will correct me if I'm wrong)

MilesnMiles · Post by **MilesnMiles** » Sun Mar 13, 11 8:22 pm

Si,
Worth doing as a precaution. I did mine on the Dart after about 1,000 miles and all torqued up exactly as required none were below spec

Pete · Post by **Pete** » Sun Mar 13, 11 8:54 pm

I re-torque and the last time I did this the heads had clearly settled.

Well worth doing for a few minutes work - peace of mind, etc.

Anonymous · Post by **Anonymous** » Sun Mar 13, 11 9:54 pm

Si I would fir sure, I did have a head bolt go loose on the Bee car after the first days runs, I fig heat or it was not correct first time around.

Dave-R · Post by **Dave-R** » Mon Mar 14, 11 8:40 am

Si you must torque to the spec the head manufacturer states. Not what it says in the manual and not what ARP suggest.

Cannonball · Post by **Cannonball** » Mon Mar 14, 11 11:35 am

simon dont just go pulling down on the head bolts crack them off one at a time and retorque it one at a time,

Pete · Post by **Pete** » Mon Mar 14, 11 12:10 pm

Cannonball wrote:simon dont just go pulling down on the head bolts crack them off one at a time and retorque it one at a time,

..And do them in sequence