Aftermarket cranks

[mdavlee]

Anyone tried the aftermarket cranks for a 385/390? Seems like these and the 460s have been going out like crazy lately for these local guys. Got 5 460s the other day and 2 had good cranks. The rest the big end is blown. 2 more 385s with blown big ends.

 

[Wagnerwerks]

Last ones I bought 1 out of three were bad, but it was a spun crank in the main bearing. Dozerdan told me no no to am cranks when I got in to saws. Never tried one.

 

[mdavlee]

There's a guy on chainsaw repair from over in Asia using the 372 cranks and pulling the rod and bearing off and putting it on a 461 crank. They were having a lot of failures on them over there. Said the Chinese bearing was holding up better.

 

[Wagnerwerks]

Hmm. I've thought about rebuilding some cranks but never needed them. I've done a couple bike cranks, but not being able to get rod kits for saws made it a game of used parts.

 

[mdavlee]

He was pulling new chinese cranks apart and using them. I think he found a seller to get just the bearings and rods from and did around 25.

 

[Gentleman]

I am not too sure about the Chinese. Ours come from Taiwan.

 

[t4driller]

What causes the big end to go out. Lack of oil/ heat. I bought a bunch of saws of a logger and almost all of them had bad big ends. One was a almost mint husky 257.

 

[mdavlee]

Best I can guess is not enough oil over their life usually. Some have come apart in ported saws running too many rpm

 

[Onan18]

"50:1, the killer of big end rod bearings. "

@Mastermind

 

[fatboycowen]

I tried an aftermarket on my 385. One didn't fit right, and the other wasn't straight. Flywheel had noticeable runout, so I stopped and went with new oe.....

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[mdavlee]

I tried an aftermarket on my 385. One didn't fit right, and the other wasn't straight. Flywheel had noticeable runout, so I stopped and went with new oe.....

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Ok. I guess that seals it.

 

[Onan18]

Ok. I guess that seals it.

Mike OEM cranks are outrageous, I put one in a 372, was almost $300.00 The only way they will sell it is as a kit with new bearings, gaskets, and a clutch.

 

[fatboycowen]

Mike OEM cranks are outrageous, I put one in a 372, was almost $300.00 The only way they will sell it is as a kit with new bearings, gaskets, and a clutch.

Yep. Sucks

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[mdavlee]

Mike OEM cranks are outrageous, I put one in a 372, was almost $300.00 The only way they will sell it is as a kit with new bearings, gaskets, and a clutch.

I know. Wish they were $150 or so

 

[huskihl]

Junkman has been using a Raisman Platt in a milling saw for a couple years. I think it's still running

 

[Gentleman]

I tried an aftermarket on my 385. One didn't fit right, and the other wasn't straight. Flywheel had noticeable runout, so I stopped and went with new oe.....

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Do you know the brand or where it came from?

 

[fatboycowen]

Do you know the brand or where it came from?

It was 2 or 3 years ago, and I don't recall the brand. Not throwing the seller under the bus.

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[Gentleman]

We had some problems with some a few years ago that came out of Turkey (not sure where they were actually made). We stopped buying those.
I can't remember exactly what the problem was. I think the connecting rod was not lining up.

 

[Cut4fun]

The last oem 372 kits I bought were $220. Dang if $300 now. I was only selling the saws for $400.

Was using one of them the other day ripping with 24" in ash, I had sold to a friend. Dang she ran gooooooood.

 

[mdavlee]

It's cheaper to buy a parts saw or even a running saw sometimes than a new crank