Hi All,

 

My internal clutch cover on my 2006 rev 3 125 has eroded at the water pump impeller, resulting in the coolant ending up in the gearbox.

 

The old cover has a hole eroded through to a corresponding hole at the back of this cover, this lines up with a hole in the engine.  What is this hole for please?

 

I assume I can just install the new cover as is and flush the coolant and gearbox oil and hope all is o.k.?

 

Although this corresponding hole on the new cover is puzzling me?

 

Any advice would be appreciated, cheers.

 

Please see attached photo's which hopefully make my description above a bit clearer.  I've pointed at the corresponding hole in the engine with a screwdriver.

First two photo's are the old cover.  Next two photo's are new new cover.

It appears someone failed to machine out your hole in the new case!

that portal used to be a coolant passage on older Rev3s. just ignore it. ..

you'll find if you follow that passage it leads to the mating surface of the crankcase/cylinder.....the corresponding passages in the cylinder on your bike would be blocked off by Welsh plugs....the give away is that your watwrpump cover has two hoses, older Rev3s had only one

OK, nice one.  Thanks for taking the time to reply, it's appreciated.

 

Cheers worldtrial champ.  Yes, I do have two hoses.  So your answer sounds good, the hole to nowhere then!  I've fitted the parts, so will fire it up tonight.

 

Thanks again.