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Quote from: Tacocaster on Today at 05:25:32 AMTechson,
I have very limited experience relative to others on this forum and particularly this thread, but I can share that I have seen a similar scenario.... once.....after the engine had already seized.
Based on the pics you provided, you have some serious wear on at least one of your cams and the obvious (wobble) wear on the backside (inside) of your cam plate. I never got to hear the engine prior to failure so I can't expand on what the owner heard - he said nothing noticeable but he did complain of a long term vibration and had previously gone through new engine mounts, his OEM, then a Fueling and finally an S&S cam plate before the main event, he admitted. He also admitted the original cam plate bolts showed a lot of "use" from previous owner. He had new ones in place.
On a side note, I have had trouble installing Fueling and S&S Cam plates I assume likely due to their tight tolerences. Perhaps your cam plate was installed incorrectly - not judging/suggesting, which caused similar wobble marks for both of you. Dunnofershur.
I suspected crank runout caused cam bearing failure followed by destruction of the cam bearing and it's mounting port but again, I'm the least experienced here. Post inspection of the oil pan did reveal he had been riding it beyond safe margins, however.
You say your crank is measured at .005? Can you show (pic) us how you measured it? I use an old cam plate cut in half, bushing removed with a dial set in a drilled pilot hole. (tried to post a pic on this quick reply but no joy).
Bottom line? I expect you have more crank runout that you measure, for whatever my opinion is worth. Re-measure to be sure and listen to the others on your thread. They are much more experienced.
***Just found Coyote has a pic posted in Homemade Tools Section under heading "Crank Runout"***
thanks for the input Tacocaster. I'm using the fuelmoto tool to measure runout on the pinion side of the crank. I did chase all the bolt holes and bolts in the case with a snapon thread chaser to clean off the old loctite and grime, blew brake cleaner and air to clean out all my holes. just a touch of blue loctite and torqued to spec per manual.
Quote from: kd on Yesterday at 09:24:48 PMHa Ha! I was looking for your old thread where you discussed that.
Quote from: FSG on Yesterday at 06:40:19 PMspot tig the stock race on
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