mudslinger2

iTrader: (10)

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

MontanaMaxx

iTrader: (12)

heat the block so it will expand and use a toothbrush handle to push the sleeve up

losi_racer

iTrader: (25)

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

mudslinger2

iTrader: (10)

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.

heidmann1

iTrader: (22)

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.

mudslinger2

iTrader: (10)

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

rdeflayme

iTrader: (5)

and now we got it out and rebuilt and running like a bat outa hell lol yeahhhhh.............