Engines' skewed a bit...
- Thread starter JCoop
- Start date
Ray,
The rubbing that you've noticed is probably due to movement caused by engine torque. Let me guess....left side of the induction opening? Solid or urethane motor mounts should solve the problem.
Bill
The rubbing that you've noticed is probably due to movement caused by engine torque. Let me guess....left side of the induction opening? Solid or urethane motor mounts should solve the problem.
Bill
Ray,
Is anything flexing visibly under acceleration?
Maybe a passenger could take a look, while you're standing on the throttle.
Broken motor mount? Wouldn't be the first time that happened.
How small is the gap between the turkey pan and the f/glass?
Bill
Is anything flexing visibly under acceleration?
Maybe a passenger could take a look, while you're standing on the throttle.
Broken motor mount? Wouldn't be the first time that happened.
How small is the gap between the turkey pan and the f/glass?
Bill
She's rock steady and only rubs when I open up the clip. I think it may be one of those things that the early CAVs may have had or maybe at engine install (I didn't do the install)...although I've basically redone most everything. It didn't look bad or matter when she had the Holley, but now, there's about a 1" discrepancy between R&L. Here's a shot, and it's right at the corner nearest the lens.
Ray,
When I installed my TWM manifold, I had to do a minor "adjustment" on the fiberglass at the rear of the hole, in order to accomodate the fuel rail crossover block. I sanded the radiused edge back from the underside, so not to get into the paint, then touched up the black underneath.
I was thinking that your turkey pan sat underneath the clip, not through it.
Too bad that your pan isn't just a tad more vertical toward the back.
Bill
When I installed my TWM manifold, I had to do a minor "adjustment" on the fiberglass at the rear of the hole, in order to accomodate the fuel rail crossover block. I sanded the radiused edge back from the underside, so not to get into the paint, then touched up the black underneath.
I was thinking that your turkey pan sat underneath the clip, not through it.
Too bad that your pan isn't just a tad more vertical toward the back.
Bill
Ray,
I’ve noticed that it’s not uncommon for GT40 bodies to have been fitted out of square relative to the chassis (most bodies are not totally symmetrical anyway) so it may not necessarily be the engine that is skewed. The easiest way to check this is to squat down behind the car and compare how each rear wheel lines up with the outer edge of the bodywork (use the tyre tread pattern as a marker). It’s my guess that you will see enough difference to explain your engine location issue. Having said that, the simplest solution may still be to re-locate the engine.
I’ve noticed that it’s not uncommon for GT40 bodies to have been fitted out of square relative to the chassis (most bodies are not totally symmetrical anyway) so it may not necessarily be the engine that is skewed. The easiest way to check this is to squat down behind the car and compare how each rear wheel lines up with the outer edge of the bodywork (use the tyre tread pattern as a marker). It’s my guess that you will see enough difference to explain your engine location issue. Having said that, the simplest solution may still be to re-locate the engine.
I've done a bit of that adjustment (sanding). Looking at the pan directly from the rear, though shows at least an inch discrepancy. I may just raise the left side a bit with a wedge or washers. I'm just afraid I'd twist things and compromise the integrity of the engine mounting.Fatal Attraction said:
Hi Ray,
The biggest cause of your clearance issues is the Getrag transaxle. It requires the engine to sit higher as the input shaft on the transaxle goes in above the diff rather than below as in the ZF application.
On our 302/347 Weber or 8 Stack EFI units the heat sheild doesn't protrude through the rear deck so no clearance issues.
Of course changing to a ZF is a tiny bit more costly than sanding off some material
Car looks fabulous BTW.
Here's a pic of a 347 EFI/ZF sitting at correct height. Sorry I don't have a pic of it with a heat sheild on but you can clearly see how much lower the engine is in the car. Food for thought...
Cheers
The biggest cause of your clearance issues is the Getrag transaxle. It requires the engine to sit higher as the input shaft on the transaxle goes in above the diff rather than below as in the ZF application.
On our 302/347 Weber or 8 Stack EFI units the heat sheild doesn't protrude through the rear deck so no clearance issues.
Of course changing to a ZF is a tiny bit more costly than sanding off some material
Car looks fabulous BTW. Here's a pic of a 347 EFI/ZF sitting at correct height. Sorry I don't have a pic of it with a heat sheild on but you can clearly see how much lower the engine is in the car. Food for thought...
Cheers
