vettjam

These are the motor mounts off of my 65 L79. Are these what are called "interlocking safety style engine mounts" as refered to in my JG?





Thanks for your input.

John BX NY

Yes.

1snake

Yes, and from what I've been told, the "V" shaped plug wire shields that cover the front two plug wires on each side will not fit using this type of mount.

Jim

Hitch

I have not experienced that with using the interlocking mounts.

MikeM

Your car didn't come with those mounts from the factory. Why are they mentioned in the judging guide unless it's to say they are WRONG!

1snake

I haven't used them but after looking at the above pictures, the locking mechanism is in the way for the front two plug wires to come up through the motor mount. Maybe it should be said that the "V" shields will fit, you just can't run the wires in them.

Jim

Hitch

Works just fine... Why don't you stick to what you actually know and not what you've heard..

MikeM

Chevrolet issued a TSB to retrofit the locking mounts to the C-2 era engines. It involved trimming some metal away on the wire covers to allow them to fit.

I believe the later C-3 wire covers were made with this mod or something similar as mentioned on the TSB.

I'm still curious why the locking mount is mentioned in the JG.

66since71

Trimming the shield was pretty easy, as I recall. It's probably in the Judging guide because the TSB (I dont think the word recall was in the automotive vocabulary yet, then) was for ALL V8 motor mounts to be changed over to the locking type. There were a rash of stuck throttle accidents attributed to the rubber breaking loose and allowing the engine to roll beyond design limits.

Harry

vettjam

To answer your question about why the safety motor mounts are mentioned in the JG:

Under "Front Engine Mount Assemblies and Ground Straps" in my 65 JG it says "Score later interlocking safety style engine mounts as replacements." i.e, points are deducted for using the safety motor mounts.

AZDoug

Oh, now doesn't THAT look like fun when changing plug wires.

Doug

Plasticman

Well now you know why he pulled the engine (to change the plug wires).....

MikeM

Midyear Corvettes weren't involved in that recall.

The Corvettes used a much more robust mount design than the vehicle car lines that were recalled.

That's why I wondered about the mention in the JG.

JohnZ

Here's the rework sheet that came with the interlocking mounts showing the required modification at the front end of both lower V-shields; 1970-up C3 V-shields were manufactured the same way as shown for the rework.

1snake

I found it easier to pull the body to change mine.

Jim

vettn

Compare boomerang designs to accommodate non-interlocking and inter-locking motor mounts.

1snake

Since you're using the wrong ones for your car, I guess they would fit just fine. I was just passing on what I had heard/read and it seems to be substantiated in this thread. No need to be such a tool.

Jim

Hitch

Just following your mode of normal operation to shame those that disagree with you. There is a way to make the original shields to work as well as the later model ones that are available. Just continue to be a crusty old fart... You are good at being that...

David