Posted by Matt Wilson [162.158.69.252] on Monday, September 04, 2017 at 00:14:30 :
Some of you may recall that I posted a few days ago about my 265 crankshaft being pitted (rust) in the area where the rear main seal contacts it. This is the type of seal that the upper half inserts into the block and the lower half inserts into the rear main bearing cap. After looking at some photos of the engine disassembly, I thought maybe the seal would contact the smooth part, but that's not the case. I went to the machine shop on Friday and confirmed that the seal contacts the rough area directly. Not good news.
So next, I bought a bolt-on type of seal, which bolts to the back of the block (upper half) and back of the cap (lower half). After carefully examining it, I think it contacts the shaft in exactly the same place as the insert seal. However, I think if I could space it rearward away from the back of the engine by about 3/16" or 1/4", it would ride on the smooth part of the shaft.
So the question is, can anyone tell me the distance between the flywheel bolts and the back of the engine? I don't have the parts with me, or I'd measure them myself.
Thanks.
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