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Old 02-25-2019, 08:47 PM
97 SL320 97 SL320 is offline
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Join Date: Jan 2012
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Quote:
Originally Posted by Mike D View Post
Technically Frank is correct regarding the use of a dial indicator. On a new, clean engine this is the proper way to initially install the intermediate plate.
So these engines don't have dowels between the block and plate? How about between the plate and transmission? No dowels = centering manually is a must.

Also if no dowels, it is sounding like the plate was bolted to the block before drilling the bell housing holes / pin locations.


Quote:
Originally Posted by Mike D View Post
You have plenty of "slop/tolerance" with an auto-box but since you are converting to a manual then I'd suggest taking Frank's advice.
Actually alignment with an auto is more critical than a manual. The converter front is piloted to the crank with the pump bushing on the other side. There is near zero axial clearance at the crank pilot and only a few thousands of an inch on the pump bushing side. While the flex plate takes care of some angularity misalignment, it does nothing for concentricity issues.

With a manual trans clutch, there is a fair amount of free play on the splines and the clutch disc's center is somewhat free floating taking up axial and concentricity issues.
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