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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
So after putting the engine back together, I noticed that the teeth from the crank where the compensator bolts up are chewed up. I can't fully get the retainer sprocket on since the teeth are binding.
From people I have spoken to, I hear either get a new crank or file the teeth to make it fit. I appreciate any other advice/insight I can provide to remedy this situation.
I have already dumped a bunch of money in the last 3 months and I am not in the mood to disassemble the whole engine to split the cases to put a new crank in for this matter.
You have two choices, that is replace the crank which it doesn't look like you need to, or get a file or Dremel tool and clean up the teeth, What is the big deal?
You have two choices, that is replace the crank which it doesn't look like you need to, or get a file or Dremel tool and clean up the teeth, What is the big deal?
This, just the entry ramp is buggered not the full spline. Diamond file or Dremel tool and a tapered carbide bit will clean that up nicely. Zero reason the think new crank for that .
Looks like someone tried removing the crank bolt buy holding the comp nut that the bolt goes through. It can be cleaned up with a file or grinder but you probably want to go to the latest comp as the nut includes the pulley sleeve with splines.
Pretty sure you are referring to the serrations. There soft. You need a fine cut 6" or so jeweler or toolmakers file.
Nicholson style 2 cut 0 is probably perfect but any knife blade shaped jeweler file will work.
That style 2 is in the second attachment in the blue cup showing end view and it's side.
I had an alternator rotor strip out the 10 Spline on the older style crank. It damaged the sides were it fit. The new rotor was no longer snug.
I took my small ball peen hammer and careful rolled it on the edge to tighten fit. I was careful to leave the top middle area alone since that centers rotor.
PS. Raymond, your relatives new here. So for sure, welcome. And only as a suggestion, make your next new post over in the new member welcome area to say hello.
Last edited by Jackie Paper; Oct 27, 2023 at 08:59 PM.
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Damaged Crank Teeth
