[Turbo DV8]

When taking the bike in to have the valves adjusted, the service writer noted a drop of coolant coming from the weep hole, which he said the tech would check. I fingered the drain, and my finger came away with a drop of coolant and a bit of oil residue. The tech noted "no coolant leak found" on the repair receipt. Before I left the shop, I again fingered the drain spout, and again came away with a drop of oil on my finger. Five miles back home, same thing.

The service manual says, "a drip of coolant/residue is normal at rest, but if a constant flow of coolant from the weep hole is noted while running, replace the mechanical seal." Well, "residue" might mean oil residue? But the next line says, "If oil is noted coming from the weep hole, replace the oil seal." On all my other water cooled bikes, the only time oil ever leaked from the weep hole was when the oil seal was shot, which was rare. This one does it since new. It's just a drop, but I'm feeling I should pursue this with Honda now, rather than wait until it gets worse and have Honda claim it's a normal wear and tear item, hence not covered under warranty.

How about you guys? When you finger your weep spout, do you come away with oil? It is accessed via the small opening in the right lower cowl, under the water pump (right engine cover) northeast of the oil filter.

 

[lenbrinke]

i just checked that area and all way dri.
nice bike in your avatar,650 or the 500?

 

[Turbo DV8]

i just checked that area and all way dri.
nice bike in your avatar,650 or the 500?

650. The 500's had gold wheels/final drive, and come to think of it, the 650's in Europe also had the gold.

 

[lenbrinke]

650. The 500's had gold wheels/final drive, and come to think of it, the 650's in Europe also had the gold.

if you had some color in that avatar i would have been able to tell
my dad has the 650t down in fla,wicked take off in top gear,pulls
like a rocket.

 

[Kurlon]

I had my 250R in the shop under warranty for the same thing. They tore into it, found both the oil and mechanical seals in good shape, buttoned it back up and we're going to see if it repeats the mess this summer.

 

[Ice Man]

I noticed this on mine the first week I got it. But it's been dry ever since. Had it about three months now.

 

[Turbo DV8]

I had my 250R in the shop under warranty for the same thing. They tore into it, found both the oil and mechanical seals in good shape, buttoned it back up and we're going to see if it repeats the mess this summer.

Hopefull they didn't button it up with the same seal(s) once they took the time to get in there. You can't "see" that an oil seal is in "good shape" just by looking at it! It leaks, you replace it, while first checking for any burrs on the shaft which goes through the seal which may have damaged it.

 

[B7ACKTHORN]

Usually, a leaking tattle hole is a sign of the seal lip giving it off. The seals are made to last a while, purely because no matter what, the heat just kills it. IIRC, the cup bikes use silicon oil seals with metal reinforcement to prevent the wear of the water pump. Here's the link.

Water pump and/or linkage failure

That is a good idea fitting a manual switch , let us know how you get on , my sleeve was fast on and I did not want to put to much pressure in case I damaged the shaft it self...

www.rc390-forum.com

Cheers!
VJ

 

[Internide]

This has happened to my bike too last January, good thing I still have my warranty back then LOL.