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Old 01-31-2010, 09:47 PM   #1
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Hey ya'll, i've got the ofna .28 that I need to replace the crank on, I have a brand new crank ready to go but I can not get the piston sleeve out for the life of me, I have tried the zip tie trick and it moved it about a 1/4 of inch out the the port but its so tight it won't come out.......any ideas? thanks in advance, Bobby
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Old 01-31-2010, 10:01 PM   #2
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heat the block so it will expand and use a toothbrush handle to push the sleeve up
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Old 01-31-2010, 10:06 PM   #3
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Quote:
Originally Posted by mudslinger2 View Post
Hey ya'll, i've got the ofna .28 that I need to replace the crank on, I have a brand new crank ready to go but I can not get the piston sleeve out for the life of me, I have tried the zip tie trick and it moved it about a 1/4 of inch out the the port but its so tight it won't come out.......any ideas? thanks in advance, Bobby
heat the block and try two zip ties on top of each other if they are breaking. the sleeve is tight but shouldnt be that tight
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Old 02-01-2010, 06:12 AM   #4
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i had 3 zip ties on top of each other and that is when i got it to pop up a 1/4 of an inch, but couldn't get it out from there. what is the best way to heat the block up with out hurting it, thanks.
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Old 02-01-2010, 07:39 AM   #5
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heat gun, or make sure your carb is off and any other not metal peices and put it in the oven at 350 for about 7-10 minutes. You are talking about getting the sleeve out right? If it is getting pusked up 1/4 inch that should give you enough room to gently pry iut up carefully around the top lip of the sleeve with a large flat head screwdriver after the zip ties push the sleeve up a bit.
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Old 02-01-2010, 09:10 AM   #6
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okay, well when I get home i will give the heat gun a try and see what happens. and yes when the sleeve comes up that 1/4 of an inch I can get a small flat head in but it is just really tight and I don't want to mess anything up. thanks a lot
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Old 02-02-2010, 09:36 PM   #7
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and now we got it out and rebuilt and running like a bat outa hell lol yeahhhhh.............
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