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can someone help me
Posted: July 27th, 2008, 4:34 pm
by fmf2001
Ok I just got done rebuilding my top end .but now is runs like $hit and has a lot of plow back so i looked at the old piston and is a pro x and has a number on it hm50086 .does anyone know if this is a stock size or has it been bored !!!!!
Posted: July 27th, 2008, 5:34 pm
by ISBB
THe piston size is on the top of the piston.. If you have a ton of blowby sounds like you got the wrong size piston..
Posted: July 27th, 2008, 6:46 pm
by fmf2001
ISBB wrote:THe piston size is on the top of the piston.. If you have a ton of blowby sounds like you got the wrong size piston..
thanks for the info it has been bored i but the wrong piston in it
Posted: July 29th, 2008, 10:35 am
by fmf2001
ISBB wrote:THe piston size is on the top of the piston.. If you have a ton of blowby sounds like you got the wrong size piston..
do you think that it would mess somthing up on my cylinder i put about 15 houers on it
Posted: July 29th, 2008, 12:26 pm
by dannygraves
you should NEVER have a jug bored without giving the piston to the machinist!!!!
Posted: July 29th, 2008, 12:26 pm
by dannygraves
If a machinist will bore it without the piston... RUN!
Posted: July 29th, 2008, 1:09 pm
by teemtrubble
How did he know what to bore it to? WTF!!!!
Posted: July 29th, 2008, 1:09 pm
by AlisoBob
teemtrubble wrote:How did he know what to bore it to? WTF!!!!
X2
Posted: July 29th, 2008, 1:23 pm
by fastkart
What if the machinist misread the clearance and made it .03-.04 instead? I can't believe there would be a machinist out there that would do a bore without a piston.
Posted: July 29th, 2008, 1:50 pm
by teemtrubble
I can feel .002 clearance all day long I can't believe someone actually put it together without noticing!
Posted: July 29th, 2008, 2:37 pm
by Exnav
fmf2001 wrote:ISBB wrote:THe piston size is on the top of the piston.. If you have a ton of blowby sounds like you got the wrong size piston..
do you think that it would mess somthing up on my cylinder i put about 15 houers on it
At the very least I would have a reputable machinist take a look at what you have and the condition of the jug.
Our "Approved Vendors" section offers guidance on who to use for rebuilds like yours.
Good luck to you....
Posted: July 29th, 2008, 4:24 pm
by fmf2001
dannygraves wrote:you should NEVER have a jug bored without giving the piston to the machinist!!!!
Just to let you know I did not know that it was bored the guy that I bought it form did it and he did not tell me .
Posted: July 29th, 2008, 5:59 pm
by iggys-amsoil
Nice save
Posted: July 30th, 2008, 5:44 pm
by TYSTYX
piston
Posted: July 30th, 2008, 6:05 pm
by kball1313
yikes
Posted: July 30th, 2008, 6:07 pm
by lewisclan
good clean up just in time
