Clanking sound...engine rebuild...please help

[Rigo559]

So one morning I'm riding ....I start hearing a loud clanking sound as I accelerate ....later on realized I was low on oil.....tried to ride back home ....but clanking got louder...I lost all my power...and bike died out on me.....when I tried turning it on later....you just hear one click...now I'm attempting my first rebuild when I removed the oil pan ...I found lots of metal shavings .....WHAT COULD THIS BE???


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[Rigo559]

What could this be??? I took both covers off and top end but am stuck here what's the next step???
How do I get the flywheel off??

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[Nakedguy]

No idea, sorry. But keep posting pics of your tear down. I may need this soon

[BockinBboy]

New Engine time... Bearings are toast, and scattered everywhere.  Even with the 'wide' tolerances of the old GS500, I can't imagine much is salvageable with that amount of metal shredding about in there.  Not worth the cost/labor/time... not even close.  Used engine will cost 700 max, without searching for a deal.  That damage above will cost more in parts alone.  Replacing the engine will be far less trouble - not even a question about it.

There is plenty of info on engine swaps on this forum - you can put any year GS500 engine in that roller with little modification or none at all depending on the year.  89-00, 01-02, and 04-09 is the year breakdown for most differences, but there is very little concerning the engine.  The engine is basically the same from 89-09 - the only 'major' thing is the timing pickup - and that's a direct swap from the bum engine to the new engine IF it is even different.

The GS500 engine is a tank; however, its Achilles tendon is low oil/low lubrication situations - kills the bearings and entire bottom end when they fail - Obviously low oil on any engine is bad, but this engine is particularly vulnerable with that situation.

- Bboy