zak Posted February 7, 2013 Report Share Posted February 7, 2013 It leaks out coolant when the engine is on very little comes out but just concerned am new to trials so any help would be great Quote Link to comment Share on other sites More sharing options...
dombush Posted February 7, 2013 Report Share Posted February 7, 2013 Hi Zak that "little hole" is the water pump tell-tale that indicates that the water pump seals are starting to leak. The good news is that a little leak can go on for a while before it becomes a gusher. However you cant tell when this might be, and its quite an easy job anyway. The job itself involves removing the clutch cover, dissasembling the pump impeller shaft assembly, Inspect the shaft for grooves / wear, replace the seals, reassemble. It took me an hour and didnt involve any really special tools. Dom Quote Link to comment Share on other sites More sharing options...
zak Posted February 7, 2013 Author Report Share Posted February 7, 2013 Dombush thanks for the help does that mean oil and coolant has to be drained ???? Quote Link to comment Share on other sites More sharing options...
dombush Posted February 7, 2013 Report Share Posted February 7, 2013 Zak yes, both need draining. There is a cheat with the gearbox oil if your really in trouble (or skint), it involves laying the bike over on its side to stop the oil flooding out when the clutch cover is removed. Careful, the tank is best removed (leakage) and you must cover the open clutch area to stop dirt getting in. Quote Link to comment Share on other sites More sharing options...
zak Posted February 7, 2013 Author Report Share Posted February 7, 2013 Thanks very much dombush will get stuck into it this week Quote Link to comment Share on other sites More sharing options...
copemech Posted February 8, 2013 Report Share Posted February 8, 2013 The pump seal replacement tutorial is on the Sherco or RYP website. Suggest a review, but not a bad job if you do it right. Also a bit of silecon grease on the new shaft and seals is reccomended, or just regular grease is better than nothing at all. MC Quote Link to comment Share on other sites More sharing options...
ham2 Posted February 8, 2013 Report Share Posted February 8, 2013 Special tools? I seem to remember having to make a split brass ferule to safely hold the impellor shaft in a vice? Anyone else dream this, I could be wrong? Quote Link to comment Share on other sites More sharing options...
dombush Posted February 8, 2013 Report Share Posted February 8, 2013 (edited) Zak Ham2 is referring to the need to stop the water pump impeller shaft rotating whilst undoing the impeller. You can avoid making a special tool:- Clean the shaft end then wrap it in tape / cloth to avoid the vice marking it. The impeller isnt immensly tight on the shaft (6ft/lb) You will see what we mean in this PDF http://www.lewisport...replacement.pdf Dom Edited February 8, 2013 by dombush Quote Link to comment Share on other sites More sharing options...
copemech Posted February 9, 2013 Report Share Posted February 9, 2013 Zak Ham2 is referring to the need to stop the water pump impeller shaft rotating whilst undoing the impeller. You can avoid making a special tool:- Clean the shaft end then wrap it in tape / cloth to avoid the vice marking it. The impeller isnt immensly tight on the shaft (6ft/lb) You will see what we mean in this PDF http://www.lewisport...replacement.pdf Dom Right then, as Dom has linked the tutorial, one item of mention. After a quick review, I found no mention of inspecting the shaft for grooving of the seals. This is a critical point of this seal replacement thing and one may have recurrent issuse if a grooved shaft is not replaced. It seems the earlier shafts were a softer material and almost allways required replacement. Reports are that the later shafts are more robust, yet the fact there "is" a weep hole does in itself present the potential for dirt dust and water entry that may effect the shaft and seals, so once again, and in a more common sense area, this is why one may want to put a bit of lube in there on the seals, not onlt to prevent dry seals, but to deter or reject dirt and water entry to the seal lip area. Not a lot, just a bit! Do as you like and good luck with it! Quote Link to comment Share on other sites More sharing options...
zak Posted February 9, 2013 Author Report Share Posted February 9, 2013 thank for all the help all done took and 1hour and a half was easy enought Quote Link to comment Share on other sites More sharing options...
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