shadude Posted July 29, 2015 Report Share Posted July 29, 2015 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. Quote Link to comment Share on other sites More sharing options...
shadude Posted July 29, 2015 Author Report Share Posted July 29, 2015 First two photo's are the old cover. Next two photo's are new new cover. Quote Link to comment Share on other sites More sharing options...
copemech Posted July 30, 2015 Report Share Posted July 30, 2015 It appears someone failed to machine out your hole in the new case! Quote Link to comment Share on other sites More sharing options...
worldtrialchamp Posted July 30, 2015 Report Share Posted July 30, 2015 that portal used to be a coolant passage on older Rev3s. just ignore it. .. Quote Link to comment Share on other sites More sharing options...
worldtrialchamp Posted July 30, 2015 Report Share Posted July 30, 2015 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 Quote Link to comment Share on other sites More sharing options...
shadude Posted July 30, 2015 Author Report Share Posted July 30, 2015 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. Quote Link to comment Share on other sites More sharing options...
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