critt

A friends 2.2 liter engines head gasket was replaced and now it smokes and has antifreeze in the oil. I believe that some of the head bolts need RTV on them.

soon2bdropped

what was the reason why the headgasket was changed in the first place was it because of the same concern? there could be a number of things. maybe improper torquing the headbolt.. maybe defective gasket.. maybe warped head/block. need more info.

GhostAccord

There are no head bolts that require RTV sealant.

x2 on the more info. Why was the HG replaced?

tamadrummer1120

agreed. and maybe it is leaking somewhere else. intake manifold gasket too possibly?? Defintely need more info. And aren't head bolts T-T-Y anyhow?

accord99power

whats T-T-Y? just wonderin.

GhostAccord

It means torque to yield and that they are to be used only the one time. Honda head bolts are not TTY. They can be reused. Although a good practice would be to replace them.

nus_dogg

Did you guys torque them to specs? Could also be warp head or block. A defective headgasket mentioned earlier could be the culprit too.

accord99power

so easier put, to oem torque specs? or is to yield mean something else. thanks ghost for the info.

tamadrummer1120

Torque to yield is the method of tightening a fastener so that a high preload is achieved by tightening up the yield point of the fastener material. To do this consistently requires special equipment that monitors the tightening process. Basically, as the tightening is being completed the equipment monitors the torque verses angle of rotation of the fastener. When it deviates from a specified gradient by a certain amount the tool stops the tightening process. The deviation from a specified gradient indicates that the fastener material as yielded.

The torque to yield method is sometimes called yield controlled tightening or joint controlled tightening.

I know some head bolts for some vehicles are TTY, but I did not know if the Accord's were, never had to pull the head off yet.......*crosses fingers* *knock on wood*

accord99power

ahhh got it...... haha. thanks man.

tamadrummer1120

not a problem.