Worn Crank Symptoms

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Headcoats
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Joined: Sun Apr 04, 2010 6:13 am
Location: Pig On The wall Country

Worn Crank Symptoms

#1 Post by Headcoats » Sat May 27, 2017 6:04 am

What are the symptoms of a crank on the way out ?
Is a strip down the only way ?
Cryin' In The Beer Of A Drunk Man

justind97
Posts: 202
Joined: Mon Aug 10, 2015 8:57 pm
Location: Ottawa, Canada

Re: Worn Crank Symptoms

#2 Post by justind97 » Sat May 27, 2017 6:11 am

It's not something that you can really hear until it's too late.
You can pull the top end and check for free play in the rods. The book has how much is acceptable, or someone here might know off the top of their head

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pushstartrearset
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Re: Worn Crank Symptoms

#3 Post by pushstartrearset » Tue May 30, 2017 4:54 pm

loud knocking noise at idle. <--our crank is wasted. I've heard from all on this board that a NEW crank is the way to go. Will go that route. Probablem is the pin is not replaceable like a 400 / 350 crank, could be a loose fit after awhile. Fresh crank, tight fit, all new parts...sounds good to me. Have your mechanic check "true" when you get it from the postman, so it hasn't "shifted" while being shipped.
1984 RZ350L (U.S.) Old Toomeys, oil injected!, Y-boot K&N. loctite throttle cable holder on left carb!! , 410 mains, Dynojet needles 2.0 clip, #20 pilot @ 1.5 turn a.s., 240/512 p.v.

Hooligan
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Re: Worn Crank Symptoms

#4 Post by Hooligan » Tue May 30, 2017 8:09 pm

Paying to rebuild the crank will be way cheaper than paying to fix the damage the crank can cause if it lets go when the engine is running.
'82 RD350LC in '81 colours, OEM pipes, UNI filters
'85 FZ750

Headcoats
Posts: 848
Joined: Sun Apr 04, 2010 6:13 am
Location: Pig On The wall Country

Re: Worn Crank Symptoms

#5 Post by Headcoats » Wed May 31, 2017 1:08 pm

Yes preventative maintenance !
Cryin' In The Beer Of A Drunk Man

(F5)
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Re: Worn Crank Symptoms

#6 Post by (F5) » Sun Jun 04, 2017 7:48 am

When it goes BANG Rattttle. Its time to replace it.
496 Cheetah. TSS PVs, PWK35s, Ignitech, RGV(ish) chassis

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