Really appreciate this video! Working on a 1979 model. I went online and instantly got scared because I’m pretty sure the mechanical seal is leaking. You made my day now that I know I don’t have to pull the back cover.

This is really great! I recently bought a '79 CX500 in really great original condition, and it has sprung a small dribbling leak at the water pump area. Great video thank you!

Thank you for this. I'm getting ready to tackle mine in the next week or two. My bike is in pieces on the floor because I'm fixing the leaky carb feed tube o-rings and decided might as well get this over with. Your video definitely helped me gain a better understanding of the procedure.

Good video, I have a small leak, it might be this. Thanks for going through these steps, I'm sure I'll have to watch this again.

Great tutorial! Whipped right thru the job after watching you, only bit that I felt dodgy about was heating the cup in the new seal to release the rubber bit. After careful heating it came out just fine.

Going to be doing this on my GL500 sometime soon, no serious leak and no oil/coolant mixing but it dribbles a little bit (not even noticeably at idle). I'll have it apart and the coolant bottle off to do a pulser cover gasket and change the rear shock (pro-link monoshock) at some point anyway

Great!!! Thanks

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What was your process of refilling the coolant back into the radiator. Did you bleed the air out or just start her up?

Did you use the Honda OEM replacement seal (part #19217-611-000) or did you use a Yamaha (11H-12438-10-00) one? Can either one be used?

Dang you got lucky with pulling that mechanical seal out . Mine is stuck bad

I just bought a 1982 Honda CX500TC/Turbo (same/similar motor)...that was told to me by seller, that this seal did not leak. It was extremely clean when I purchased it w/no indication of a leak (which is common w/these motors)...but, after the 1st 20+ miles I noticed a very minor leak coming from this seal area (minor or not...none the less a leak). I'm assuming this procedure in this video does work (does it???) and it could be done w/mine. Much less work and $$$'s than splitting the motor or removal of motor to do it as Honda recommends.

Hi, nice job , did it work ok after a good spin ? thanks a lot from Wales , Gus

Regarding annealing the copper washer it has to be red hot and cooled in water. Cooling on it's own may harden it again.

As Ave would say "framing you %uck"! Good info nevertheless. Thanks for posting!

A fried had the 650 Turbo version. A very odd bike.

Mine needs this and my mechanic says the engine needs to be removed. Will you do mine?😂

All need to know is how to pull the fan blade of the motor

Motor comes out in 20 min brah

You did as much work moving the carbs when you could pull the engine