

| Subject: | Re: New Head Gasket Stud Kit From Raceware |
| Date: | Tue, 14 Nov 1995 09:31:40 -0400 |
At 07:28 PM 11/13/95 -0600, brad wrote:
>>For all I know, it is worth it. I wonder if this means Raceware allows you
>>to increase the torque even further beyond the new higher torque specs issue
>>by the factory to stab at the head gasket leak problem.
>>
This sounds like crap to me. Overtighten a 2mm thick rubber gasket against
two aluminium pieces and it will simply extrude. Next time you find an
O-ring seal check out how well the seal is 'encapsulauted' by a deep groove
and close fitting lid. This keeps the seal from being shot out under
pressure, say by your brake fluid. Rubber or any compliant gaskets are to
be avoided like the plague when used in a corrosive environment. They lead
to crevice corossion in which pockets of fluid are created next to the
metal. The local concentrations of electrolytes cause galvanic corrosion
cells to be set up, leading to pitting.
A real fix to this problem would be the use of hard gaskets, that
don't compress so much. Higher clampling pressures become possible, thinner
stiff gaskets prevent the crevice formation. Isn't this how it's done in
all other vehicles. Has anyone broken a non-rusty stud off yet?, $229 to
raceware for a standard build engine seems pointless. And it isn't rusty
studs that have caused my heads to leak, it's corroded sealing faces. Snake
oil I say, at ten times the price of Slick-50 no less. Tim SmithHave something to add on this topic today? Revive this thread in the forum »