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Old 09-19-2011, 06:37 PM
cousindave76's Avatar
Fix it for the hell of it
 
Join Date: Jul 2006
Location: Dallas, TX
Posts: 130
Is Crankshaft play ok?

I have a friend who's 81'(aprox) 300cd with 141K started making loud metal clanking noises. He shut down and had a shop look at it to which they said "the crank shaft in crumbling". An odd assessment beings all they did was remove the crank pulley and balancer(didn't drop the oil pan). I've not been able to hear it run but I took a look at it and found that I could move the crank in and out(not up and down) about 1/8". The seal is not leaking a drop of oil. I've never inspected a 617 with no belts on before. Is this amount of in-out movement normal or should it be rock solid? And if this is not normal, does that mean the crank is shot, or is there a spacer or something may be replaced?

Thank you for you time!
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