Engine Case Help
Engine Case Help
Hello everyone. Hope all is well!
I have a problem. I purchased a 500 motor that had a busted side case where the kicker shaft seats in the case. It came with a case to swap in and fix it. I spent a few hours tearing the motor down and replacing bearings, seals, and gaskets and putting it all back together. When I go to put the cylinder on I notice a HUGE problem. The side case I swapped in has a deck height way to low and it also appears that where the sleeve inserts into the cases does not have a large enough diameter either.
I tried the motor differences sticky and the pics won't work.
It looks to me like the base on the replaced side has been milled but I don't get why? Or is it just from a different year with a different deck height?
I'm fairly certain my motor was an 89.
Pic for reference.
I have a problem. I purchased a 500 motor that had a busted side case where the kicker shaft seats in the case. It came with a case to swap in and fix it. I spent a few hours tearing the motor down and replacing bearings, seals, and gaskets and putting it all back together. When I go to put the cylinder on I notice a HUGE problem. The side case I swapped in has a deck height way to low and it also appears that where the sleeve inserts into the cases does not have a large enough diameter either.
I tried the motor differences sticky and the pics won't work.
It looks to me like the base on the replaced side has been milled but I don't get why? Or is it just from a different year with a different deck height?
I'm fairly certain my motor was an 89.
Pic for reference.
- Sandblaster
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- Joined: January 29th, 2015, 10:24 pm
- Sandblaster
- Posts: 84
- Joined: January 29th, 2015, 10:24 pm
- Roostius_Maximus
- Site Admin
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- Joined: November 16th, 2007, 3:24 pm
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What the heck!
The short case is a 1985-86, the stator case side is a 1989+, a larger bore for the larger sleeve.
What is the engine in? what cylinder do you have?
The short case is a 1985-86, the stator case side is a 1989+, a larger bore for the larger sleeve.
What is the engine in? what cylinder do you have?
http://www.youtube.com/user/500bigbore
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
Dangit, Roosti, you beat me by one second . . .Roostius_Maximus wrote:What the heck!
The short case is a 1985-86, the stator case side is a 1989+, a larger bore for the larger sleeve.
What is the engine in? what cylinder do you have?
The OP posted in cr500riders under my spacer thread that he had an 89 engine with a busted case. So he swapped it with a case he had on hand and found the discrepancy seen in the pics.
- Roostius_Maximus
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He can order a new right hand case for a 2001 model then
http://www.youtube.com/user/500bigbore
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
I purchased this motor knowing it needed the right side case replaced. It was a complete 89 motor. It came with the other case you see currently installed. Through all the work I did on this motor I didn't realize what I was doing until I was finished and ready to put the cylinder on!!! I'm such an idiot lol.
Finding a right side case is going to be difficult and expensive. Two things I don't need.
This was purchased to start a CR500AF project with an 04 CR125 frame I picked up.
Finding a right side case is going to be difficult and expensive. Two things I don't need.
This was purchased to start a CR500AF project with an 04 CR125 frame I picked up.
- Roostius_Maximus
- Site Admin
- Posts: 4641
- Joined: November 16th, 2007, 3:24 pm
- Location: Mt Nebo, Manitoba, Canada
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It's 300$ or less most places and comes with all new bearings in it.
http://www.youtube.com/user/500bigbore
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd