convertor

Turnip · Post by **Turnip** » Wed Aug 27, 08 8:37 pm

I had a convertor made by sussex autos about 3 years ago,they have rebuilt it 3 times as i have broken transmissions. The bolts keep falling out. Now it is with an engineier who asked me how true should it be as the blocks the bolts go in are all different hieghts , is this normal?

Guy · Post by **Guy** » Wed Aug 27, 08 8:44 pm

As far as I know three should be the same and only one different.

Turnip · Post by **Turnip** » Wed Aug 27, 08 8:48 pm

Is that spacing or hieght?

Guy · Post by **Guy** » Wed Aug 27, 08 8:50 pm

spacing

challenger · Post by **challenger** » Wed Aug 27, 08 9:14 pm

im no expert but the high stall unit i recently brought off duncan has all the lugs level ,placing the b&m flexplate on it they all sat fairly flush , i would say if they aint level its gona be stressing the flexplate

Anonymous · Post by **Anonymous** » Wed Aug 27, 08 9:22 pm

If they ain't right you won't get the bolts in , soooooooo , would think there ok.

EDIT. i see what you mean

, you might get away with it on a starfish flexplate , not good if using a B&M (solid)

challenger · Post by **challenger** » Wed Aug 27, 08 9:34 pm

guess it depends what length bolts are being used , and depends how much height diff there is in the lugs , but if you got 2 lugs 2 or 3mm lower than the others surely that will cause stress on the flexplate and throw the converter off centre and more so if a heavy duty b&m flexplate is being used

Turnip · Post by **Turnip** » Wed Aug 27, 08 9:40 pm

when I used the standard star shaped flex plate the bolts stayed in but i damaged the trans. Now i'm using a solid flex plate it's throwing bolts out, there is about 1mm of difference but I know it's not much but woul think it could cause a problem.

Anonymous · Post by **Anonymous** » Wed Aug 27, 08 9:44 pm

Have you got 1/4 " back & forth movement on convertor? , can't see it throwing bolts if locktight was used.

challenger · Post by **challenger** » Wed Aug 27, 08 9:45 pm

might cause a prob if they both to one side and stressing the converter to one side a bit and maybe throwing it off balance i guess duncans the man to ask

mopar_mark · Post by **mopar_mark** » Thu Aug 28, 08 6:49 am

The bolt holes are not on an equal PCD, which it why it is good reason to mark converter & flex plate before installing gearbox. Makes life easier if your underneathe the car, bolting in converter

All the pads should be the same height, to avoid unnecessarily stressing the flex plate.

If only a 1mm or so difference, then get your eng friend to machine of the other 2 pads to bring pads to all the same height.

Loctite or similar is definitly recommended on converter bolts, loosening of bolts is quite common, when bolt retainer/loctite is not used