<VV> Motor mounting
Sethracer at aol.com
Sethracer at aol.com
Sat Feb 13 22:07:27 EST 2010
In a message dated 2/13/2010 6:23:09 P.M. Pacific Standard Time,
kaczmarek at charter.net writes:
Writing this because AFAIK Steele Rubber is the only company that rebuilds
Corvair mounts. By the amount of cores we get from the vendors and from
individual owners I can see no other alternative.
>From Charles' story we find another way that our car can become unsafe at
any speed. So check your mounts. And pretty please, with sugar on
top---DON'T JACK YOUR CAR UP BY THE MOTOR MOUNT!!!!! There are jacking
points on the car----use them!!! Doing the above guarantees premature
failure of the LM mount.
Hank
I agree, Hank, that the motor mount is a place where a small inspection
goes a long way. That said, Charles mount did not fail. A catastrophic
internal failure of the rubber in either the early design 65- or the later design
66-69 mount will not allow the motor to drop out of the chassis. There are
internal steel mechanisms to prevent that in both designs. On the late
models, there are a pair of crimp-design lock nuts holding the rear engine
bracket to the mount. There are four regular hex-head bolts holding the other
portion of the mount to the rear frame rail. ONLY if all four bolts fall
out or both nuts fall off, will the mount will depart it's designed position
and the engine (usually) drop down. Charles mentioned, in his note, that
the nuts had fallen off. So the important "take-away" from this discussion,
is to inspect the four bolts in the engine compartment and, somewhat tougher
to do, check your nuts! By the way, if you find yourself lifting the
engine into place and you can't find a pair of the original design lock nuts to
fit over the "figure-8" washer, the Corvair rocker-arm adjuster nuts will
work fine in this application. They are also a locking design. The late-late
mount can also be inspected, visually. A perky one, in good condition,
should stick up in the middle. If it is flat across when installed, it is time
to start looking for a replacement.
I hate to admit this - But I drove a complete, 3-lap run at an autocross
(Not at a Corvair-Convention) with my 140 linkage stuck to the floor, wide
open. I used the ignition switch as an engine brake. I also had good metallic
brakes. Stupid? Yes. But the rules were you got one, three-lap run, and
once you went on course, no re-runs. And I was running for a championship.
PS - I took the class, and the championship. That was when I was young and
foolish - I am no longer young!
Seth Emerson
C's the Day! - Corvair, Camaro, Corvette
More information about the VirtualVairs
mailing list