86, 87 spree crankcase/crankshaft binding
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86, 87 spree crankcase/crankshaft binding
I'm rebuilding a 1987 Spree engine and when I tighten the right and left hand crankcase halves together, the crank won't turn. I'm not even close to torque specs when it binds up. I made a gasket from gasket material that seems to be the same thickness as OEM. I've tried two different cranks....same thing. What am I doing wrong! Thanks
- paulpauly7
- CB900F
- Posts: 1945
- Joined: Tue Feb 21, 2012 6:57 pm
- Location: nz
Re: 86, 87 spree crankcase/crankshaft binding
you dont press the cases together you hav to pull the crank into each half.Doing it the way you are you will put the crank out of true then you will have to pay someone to balance it up for you.search for the tusk crank puller and buy one or rent one if you can
86 Nifty Fifty (spree)
ZX disk brake
Kitico 120kmh speedo
AF18 ZX ported
Polini corsa
Malossi crank
CTmani
24mmOKO
40pilot118main
Scorpion pipe
8.44 to 1
Michelin s1
71.3mph
92 yz125, 94 crm250
ZX disk brake
Kitico 120kmh speedo
AF18 ZX ported
Polini corsa
Malossi crank
CTmani
24mmOKO
40pilot118main
Scorpion pipe
8.44 to 1
Michelin s1
71.3mph
92 yz125, 94 crm250
Re: 86, 87 spree crankcase/crankshaft binding
Thanks for your reply! I have a Tusk crank puller and used it for the project. I used my shop press to remove the crank, and both times used the Tusk to install crank. The last time , I got it close, then tried bringing the cases together by alternating tightening the 5 case bolts. Same result both times. Would any of the above bent the crank? Thanks
- swimmingfree
- CBR1000RR
- Posts: 3357
- Joined: Tue Jun 14, 2011 12:28 pm
- Location: mich.
Re: 86, 87 spree crankcase/crankshaft binding
i dont have all the tool like you have but i have had the same thing happen to me had to tap the crank one way or the other to get it to work smoth ..
swimmingfree
swimmingfree
handicap (dyslexia)
looking for
se50 crank...
SpreJunk 87elite in a spree body
ruckus variator , 3.5 tire , 1500 drive face spring , a 64 bbk ,
8 gram rollers, stock carb , after market air filter and 105 jet
looking for
se50 crank...
SpreJunk 87elite in a spree body
ruckus variator , 3.5 tire , 1500 drive face spring , a 64 bbk ,
8 gram rollers, stock carb , after market air filter and 105 jet
- Trafficjamz
- CBR1000RR
- Posts: 5353
- Joined: Tue Jul 14, 2009 7:53 pm
- Location: Eastlake, MI
- Contact:
Re: 86, 87 spree crankcase/crankshaft binding
are you sure the crank is from the correct year?
not all spree cranks are the same.
try thicker gasket material.
not all spree cranks are the same.
try thicker gasket material.
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight