KLR 650 with a spun crank

[Guest]

SO Here I am and I am wondering what the sum of all damage is from a spun crank bearing.

I assume the journals could be destroyed yes?
I am wondering if this could take out any other parts in the system.

Regards

[Nessism]

Could damage engine cases too.

[JEEPRUSTY]

So its a big black void.
A guy hereabouts has a 2004 I figured on low balling him in the dead of winter.

But he wants 1200 to start and a full engine rebuild is too much of a variable.

I have tried to find a pictorial guide for the rebuild of this engine and no one seems to have done one. I see several really high quality pictorials and then they die without completion. I wonder if in some cases unfinished forum threads fall off due to the actual death of the original poster.

A idle musing.

[GregT]

The KLR crank is a pressed up roller bearing big end. Assuming it's the big end gone, it's buy a rod kit - rod, pin and bearing - split the cases and have the crank rebuilt.
It's remotely possible the piston may have clipped a valve but more likely that it's touched the head, in which case careful examination and ensuring the top ring in particular is free in it's groove will be required.
The main bearings are normal ball bearings so if one of those is noisy, replacement is straightforward.

Price the parts and a gasket set then make a decision...

[JEEPRUSTY]

Thanks guys......
This new forum is a boon. An awful lot of questions like this could never get answered when lost against the silly morass of OT.