My question is The piston im planning on using in my cr250 has been used already (and I assume that its the one Hellmut was planning on using when he had the bike) but is it ok to use a piston with some build up. it doesnt seem like it wants to come off. or should I just get another one?
Carbon build up on piston.
Started by
shadyone
, May 04 2012 11:56 AM
2 replies to this topic
#1
shadyone
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Posted 04 May 2012 - 11:56 AM
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#2
ReconRat
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Posted 04 May 2012 - 01:02 PM
Used piston, new rings. Check fit and function of rings. Check fit and function of piston pin in piston. Check piston for cracks and damage.
Soak in kerosene, Seafoam, similar gunk/carbon cleaners. Do not use caustics on aluminum. Scotchbrite pads or soft metal brush to work with.
edit: there are dimensions to check for piston shape also. But the important part is cracks, and the nice square/sharp edge of the bottom of the piston skirt.
Cracks can be hard to find without using dyes and lights to find them.
Soak in kerosene, Seafoam, similar gunk/carbon cleaners. Do not use caustics on aluminum. Scotchbrite pads or soft metal brush to work with.
edit: there are dimensions to check for piston shape also. But the important part is cracks, and the nice square/sharp edge of the bottom of the piston skirt.
Cracks can be hard to find without using dyes and lights to find them.
Edited by ReconRat, 04 May 2012 - 01:16 PM.
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#3
CrazySkullCrusher
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Posted 04 May 2012 - 01:18 PM
Removing the carbon is pointless, its going to be back on the piston in a few hundred miles anyway.
If you love someone, let them go. Just don't get mad if they come back with the herpes.
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