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Marque Remarks
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Spaniards (Bultaco, Ossa, Montesa etc)
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360 explosion...
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Topic: 360 explosion... (Read 1726 times)
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cappra
Legend
Posts: 640
Glendale, Arizona
360 explosion...
«
on:
January 04, 2012, 06:30:18 pm »
This is what happens when a piston lets loose at high rpm :'(
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oldfart
Guest
Re: 360 explosion...
«
Reply #1 on:
January 04, 2012, 06:56:27 pm »
Is the barrel ok as it looks like the rod is slightly bent also.
Was it over due for a piston and has dropped the skirt resulting in this
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Canam370
Legend
Posts: 1608
Re: 360 explosion...
«
Reply #2 on:
January 04, 2012, 07:02:30 pm »
ooooohh - that's not meant to look like that
I had a chunk of piston skirt try to get out the inlet port of my 125 Canam once. Trouble with that was it didn't get out quick enough and the rotary disc caught it halfway out. 9000rpm to 'oh shit' in a nanosecond! Didn't look quite as dramatic as the Mont but it took ages to untwirl the peeled disc out of the cases. Sorry for the hijack
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WANTED. Canams;all models,complete or parts.SWM stuff too!
I'm THE Thread Killer - when I post a thread dies!
cappra
Legend
Posts: 640
Glendale, Arizona
Re: 360 explosion...
«
Reply #3 on:
January 04, 2012, 07:43:23 pm »
The cylinder liner was broken as well. The engine cases are ok. Piston clearance was at
.0035" when checked a couple of months prior to the explosion. (installed new rings)
It was a Mahle piston.
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holeshot buddy
Legend
Posts: 2008
sunshine coast qld
Re: 360 explosion...
«
Reply #4 on:
January 04, 2012, 07:51:43 pm »
shite jared it has let go big time
i had a kx500 do this it was a standard cast piston
same result sleeve gone rod bent alloy everywhere
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OzVMX Forum
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Marque Remarks
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Spaniards (Bultaco, Ossa, Montesa etc)
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360 explosion...