HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
HartsYZ450

new rebuild, coolant leak, can't figure it out

2 posts in this topic

this is an 03, 450. just rebuilt it from the crankshaft up. it runs ok, untill it warms up, then coolant starts leaking out the weephole below the waterpump. put new seals in , and the shaft is realatively new. flow passage seem clear when blowing through all waterjackets, and radiators.

what am i missing?

Share this post


Link to post
Share on other sites

Replace the inner/outer seals,impeller shaft, and the bearing. Your bearing is probably ol and worn letting the shaft move around, and destroying your seals. Just had the same problem:thumbsup:

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0