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Old 12-19-2016, 11:52 AM   #31
Topless
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Join Date: Nov 2006
Location: Southern ID
Posts: 3,701
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Quote:
Originally Posted by Bebbetufs View Post
I should have thought about the IMS procedure.

How about drilling and tapping a hole in the pulley and then drilling a small matching dimple in the block to accept a set screw? If this is done while the engine is locked at TDC via the flywheel it should be very accurate. Would this be enough to hold the timing during the procedure?
A better solution is to save your OEM pulley, label it, toss it in your spares bin and don't shave off too much of the timing boss. This is what we did and the IMS retrofit was reasonably uneventful. It took an extra 30min or so to re-install the original pulley and align to TDC. Lock it in with the factory pin and we were good to go. Most shade-tree tuners don't think this far ahead and get in trouble when the motor needs internal work.

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