Weeping half moons not crying anymore

[ryonker]

Well, a small smear of ultra black gasket stuff seemed to do the trick on my half moons. No weeping so far. I did order a new set for next round though (or if these suddenly go bad).

I did notice my tach cable going in to the valve cover drips a little. It's brand new. I snugged it down a little more but I don't want to strip it. Is there an o-ring on those things?

Thanks for the help!

Rick

[Dogma]

Well, a small smear of ultra black gasket stuff seemed to do the trick on my half moons. No weeping so far. I did order a new set for next round though (or if these suddenly go bad).

I did notice my tach cable going in to the valve cover drips a little. It's brand new. I snugged it down a little more but I don't want to strip it. Is there an o-ring on those things?

Thanks for the help!

Rick

Yeah there's an o-ring. If it's like mine, it seals on the diameter instead of seating, so tightening it shouldn't be much help. There's also a seal for the gear shaft. Both get old and need replaced. Sometimes the shaft seal wears a groove in the gear shaft, so that might need replaced too, if you have high mileage.

bwrigner has a tutorial here

[ryonker]

Looks like you can do this without removing the valve cover. That would be nice.

Thanks, I will check out my o-rings.

Rick

[ryonker]

I took off the tach cable and there is actually no O-ring on the cable itself. It looks like the O-ring is inside a housing this is held on by a small screw. The O-ring looks bad, but I need to remove the housing and check it out. This is a 79 GS 750 so pretty close to bwingers tutorial.

I may try and put a little teflon tape on the threeds and see if that helps while I wait for an O-ring.

Thanks!

Rick

[willie]

Mine's leaking too but I haven't gotten around to replacing it yet. I'm looking forward to finding out how you fix it and where you buy the parts from.
Willie in TN

[ryonker]

I wrapped a little teflon tape on the threads and no more leak. At least not yet. I did order the o-rings for down the road when I have time to change them.

[BassCliff]

Mine's leaking too but I haven't gotten around to replacing it yet. I'm looking forward to finding out how you fix it and where you buy the parts from.
Willie in TN

Hi Mr. willie,

Mr. bwringer's already done all of the thinking for us. Note that your bike may require different part numbers. It's an easy half hour job. Check the vendor list on my site for our favorites.

Click here for Mr. bwringer's tach cable seal repair guide.


Thank you for your indulgence,

BassCliff

[ryonker]

This is a great tutorial. I already ordered all the parts based on this writing. Mine are teh same as his 850.

Rick