un cut 6 bolt crank
Looking for a virgin crank 6 bolt.
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Re: un cut 6 bolt crank
I've got one pm me
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Re: un cut 6 bolt crank
Why does everyone want virgin cranks? what is wrong with running oversized bearings? me no get.
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Re: un cut 6 bolt crank
DSM cranks have a hardened layer and that's why the FSM says they are not serviceable. Its a big debate, many shops also don't recommend it.
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Re: un cut 6 bolt crank
^ what he said, the re treating of the crank isnt cheap either.
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Re: un cut 6 bolt crank
Ive got one im sure might need a polish but ill check when i get home from work
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Re: un cut 6 bolt crank
Quote:
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Re: un cut 6 bolt crank
It's the nitride coating. Cheaper to find a fresh on than have it re-nitrided.
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Re: un cut 6 bolt crank
gotcha! Makes sense that they are case hardened, that would do a lot for wear resistance.
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Re: un cut 6 bolt crank
I called crankshaft supply today and to service my crank, it will cost $366 plus me shipping and shipping back.
That includes filling the thrust bearing on crank, cutting and polishing the mains, also the nitrate coating. The nitrate coating is $168 alone. The only reason why i might send them the crank is that it was balanced, I don't know if it will still be balanced after they work on it. And i am still looking for a good used 6-bolt crankshaft. |
Re: un cut 6 bolt crank
$366 isn't bad when comparing to the alternative. Eagle junk for $500ish or Manley for 6. Crankshaft supply is the beesneez around here. They don't carry any 4g cranks down there? Would almost think they would.
Good luck on the decision. |
Re: un cut 6 bolt crank
Crankshaft Supply don't have any stock of 6 bolt cranks. I wish i knew of them sooner. I've trashed 3 cranks because they needed to be cut.
I also have a set of acl tri metals sitting in my garage, I'm thinking about going to aluminum. I haven't had the best luck with the tri metals. Anyone with experience with aluminum bearings around 500 whp. |
Re: un cut 6 bolt crank
You can cut 7 bolt cranks .010 and be fine, they are induction hardened and the hardening layer is .025-.030 deep, a 6 bolt crank is nitrided and that only goes .010-.015 deep so a basic .010 cut could remove the hardening off the journal.
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