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BLOWN ENGINE???????

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Old Jul 14, 2008 | 09:29 PM
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Default BLOWN ENGINE???????

Wife was riding her Deluxe when suddenly it rev'd briefly, blew the dipstick out of the oil tank and started running on one cylinder. Plugs look good but fear I've got a possible hole in a piston. Any thoughts??
 
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Old Jul 14, 2008 | 09:53 PM
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Default RE: BLOWN ENGINE???????
Same thing happened to a buddy of mine..piston ring cracked..destroyed the motor...sorry..hope your under warranty...
 
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Old Jul 15, 2008 | 06:14 AM
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Default RE: BLOWN ENGINE???????
Hopefully not as much harm as that.
Perfect time to turn lemons into lemonade.(more power with superior components)
 
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Old Jul 15, 2008 | 06:16 AM
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Default RE: BLOWN ENGINE???????

No warranty, its an 05.
 
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Old Jul 15, 2008 | 07:29 PM
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Default RE: BLOWN ENGINE???????
ORIGINAL: GREEN MACHINE


Wife was riding her Deluxe when suddenly it rev'd briefly, blew the dipstick out of the oil tank and started running on one cylinder. Plugs look good but fear I've got a possible hole in a piston. Any thoughts??
You will discover that there may not be any compression on one cylinder. Hole or not it will be piston related somehow unfortunately.
Ron
 
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Old Jul 15, 2008 | 07:40 PM
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Default RE: BLOWN ENGINE???????
Basically, the compression (of what's leftover) from one of the pistons got into the crankcase - so mush so to blow the dip stick.&nbsp\\; Compression check will show which one.&nbsp\\; Problem is what sort of pieces got into the oil.
 
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Old Jul 15, 2008 | 10:39 PM
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Default RE: BLOWN ENGINE???????
A friend broke a rocker arm and produced a similar result. With a valve not opening, the piston continued to pump but with no where to go, the pressure went into the crankcase.
 
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Old Jul 20, 2008 | 09:03 AM
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Default RE: BLOWN ENGINE???????

To all that replied, thanks. I took it apart and found that the piston had started to melt. I ended up boring it out .10 over and cleaned-up the valves.
 
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Old Jul 20, 2008 | 10:23 AM
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Default RE: BLOWN ENGINE???????
&nbsp\\;
I'd sure be looking for the cause of the piston damage.
 
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