Posted by Matt Wilson [162.158.69.252] on Monday, September 04, 2017 at 13:33:21 :
In Reply to: Re: Distance between flywheel attachment bolts and back of block posted by Kaegi [108.162.245.49] on Monday, September 04, 2017 at 12:12:02 :
That's a good point. I was thinking about the installed clearance, which might be adequate, but I wasn't thinking about the clearance needed to slip a nut between the seal and the flywheel bolt, in order to get the nut started onto the bolt.
But I suppose maybe I could pull each bolt out of the hole far enough to make room for the nut, then put the nut flat against the flange of the crankshaft, then start turning the bolt to get a thread or so engaged into the nut before the bolt head runs into the flywheel, and go from there....maybe...?
What are your thoughts about running the seal against the crankshaft surface as is, assuming I can't find some kind of alternate seal configuation, as Gary suggested? The high spots have all been knocked off the shaft, so that what remains is pitting INTO the surface, nothing sticking up. My machinist says he runs into this kind of thing pretty often, and that people just run them that way. He couldn't tell me if they last very long or not, but if it was a big problem, it seems like he would have heard about it. He's been in business for about 40 years. I have a hard time thinking the seal will last long in those conditions, but maybe I'm wrong. Is it possible that the pits will act as little oil reservoirs and keep the seal lubricated? And as long as the sharp raised spots are all knocked down, it won't hurt the seal?
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