ST1100 Anti-Freeze Leak

Uncle Phil said:
Should I 'force' the tensioner pulley up more (it appears to be fine) or let it be where it came to 'rest'?
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No, manual says to let it snap in place by the tensioner spring and fixate it there.
Rotating it over by hand (plugs removed) as suggested by @dwalby is an SOP to confirm that there is no interference and that cams and pulleys arrive back at their marked positions/indicators.
 
Uncle Phil said:
At this point with my experiences, I have a lot more confidence in the timing belt going way over 100K than I do the water pumps! ;)
The big issue is finding a ST1100 water pump if you need one.
If push comes to shove, I believe there is a gentleman on this board that rebuilds them.
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I bought this a few years ago as a backup
I will see if there are numbers stamped on the parts to see if they can still be sourced and will update my post.
 
kiltman said:
I bought this a few years ago as a backup
I will see if there are numbers stamped on the parts to see if they can still be sourced and will update my post.
Click to expand...
Unfortunately it seems HappyBikes (as you know also sold the ABS sensor 'upgrade') seem to have gone shut or stopped their ST1100 stuff.
 
Here's the last link on ST1100 water pump rebuilds that I could find -

ST1100 Water Pump Overhaul Service | Vendor Announcements

Tom, with your permission, I’ll repost this over on ST-Riders.net where a lot of long-time ST folks hang out. Regards, John Hi John, Yes, that is just fine with me and thank for your help.:) Tom
www.st-owners.com www.st-owners.com
 
The water pump bearing # is WB173007D this seems to be available from different sources for a couple of dollars
The seal is THS 14.20 30.00K. This looks like it’s available at a tractor supply. For a couple of dollars
 

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