Re: Head Gasket Leak

Posted by DJ. Voyce on July 19, 1997 at 02:36:20

In Reply to: Re: Head Gasket Leak
posted by Larry Jenkins on July 18, 1997 at 14:37:05

: : : Hello,
: : : I have two cars, both cars have the same problem, There seems to be a bubbling in the head gasket area between cylinders 2 and 3. I've looked at several other cars lately and they also have this problem.Is this because I didn't put gasket cement on the head gaskets before installing them? Or is this just a matter of re-torque?
: : : Thanks
: : : Dean
: : you may need to have the head milled to make shur it is flat and not warped. Also using the copper head gasket sealer on both sides help. rember to retighten the nuts after the motor is good and hot.
: There are head nut torquing sequence charts in most of the Model A Parts books.The first and second nuts to be torqued are in the middle of the head.It is recommended that the torquing be performed in three steps, with number 2 and 3 done while the engine is at operating temperature, ending with a final value of 50 foot pounds.
G'Day Dean,
Just to add to what Steve & Larry reccommend, you could use aluminum/silver paint to coat the head gasket if you don't have any of the fancy sealers, you know the kind they use for painting fence posts. Another good practice is to just crack the nut/bolt to be torqued, back about 1 flat when re-torquing hot. This just breaks the nip the nut has on the head & gives a more accurate torque loading. If this is not done it may seem that the torque is correct because the initial friction of the nut on the head must be overcome first, & sometimes requires a greater toque setting than initially given.
Ragardz
DJ.

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