jimbobjames125 Posted October 14, 2012 Report Share Posted October 14, 2012 hi people, In a very serious head ache, sick of this sherco! Although she is beautifull to ride! The story goes. . . . I have a water leak. I noticed the water level was low, after the fan hasnt been comming on due to water level. I dropped the oil and there was no sign of coolant. But to be on the safe side changed the water pump seals. I then rung splat shop chris who told me to replace the head seals. Which I did. I rode once, cooled, checked level. It was down. Refilled and rode again, let it cool and checked level, it was down. I have now removed the head again to check seals and for hair line cracks? Is this common? I have noticed the bike smoking alot but thought this was due to oil in petrol? There is no power loss though. When stopped, the bike does still lets a few whips of smoke out, is this normal? My other area for concern is the radiator, i cant see any fluid comming out of the radiator, there is one spot thats a wee bit ropey but theres no fluid escaping. Is it worth sending off to get pressure tested bearing in mind im 15 and have no money for this bike anymore!? Or should i make a pressure test myself? Im pretty handy in the workshop. Please help before i go bald with all this head scratching.. . . Quote Link to comment Share on other sites More sharing options...
chewy Posted October 14, 2012 Report Share Posted October 14, 2012 I had a Gasser once with a crack (invisible even with strong magnifier) in the head similar symptoms as you describe it sucked and blowed small amounts of water until it eventually blew a lot of water. what colour is the "smoke" blue black white....hope somebody else got a better idea for you. Quote Link to comment Share on other sites More sharing options...
jimbobjames125 Posted October 14, 2012 Author Report Share Posted October 14, 2012 The smoke is white. . . . Quote Link to comment Share on other sites More sharing options...
jimbobjames125 Posted October 14, 2012 Author Report Share Posted October 14, 2012 Also how did you eventually find the crack? Was it in the head or barrel? Quote Link to comment Share on other sites More sharing options...
zerorev3rev4 Posted October 14, 2012 Report Share Posted October 14, 2012 have you replaced cylinder base gasket as i think they go on them Quote Link to comment Share on other sites More sharing options...
copemech Posted October 15, 2012 Report Share Posted October 15, 2012 WHAT YEAR IS IT? Quote Link to comment Share on other sites More sharing options...
chewy Posted October 15, 2012 Report Share Posted October 15, 2012 Jimbo I hope it's something more simple than a cracked head..... just for info..used a penetrant dye... probably with hindsight diesel fuel with colour in it. Quote Link to comment Share on other sites More sharing options...
wobblenorbed Posted October 15, 2012 Report Share Posted October 15, 2012 White smoke normally means steam! Sounds like a head problem sorry bud. Good luck. Quote Link to comment Share on other sites More sharing options...
jimbobjames125 Posted October 15, 2012 Author Report Share Posted October 15, 2012 Cheers people, shes a 2011. If the base gasket had gone would it allow fluid into the cylinder?? How do I find the crack using red diesel? Im trying to pressure test the radiator at the moment. . . Quote Link to comment Share on other sites More sharing options...
copemech Posted October 16, 2012 Report Share Posted October 16, 2012 Cheers people, shes a 2011. If the base gasket had gone would it allow fluid into the cylinder?? How do I find the crack using red diesel? Im trying to pressure test the radiator at the moment. . . As I recall, it could, as there are are passages from the case to cylinder. Never heard of leaks though. Casting cracks in head would be extremely rare as well I would think. Leaks to head area would generally push fluid out the rad as the compression pressures are greater than the coolant pressures. Quote Link to comment Share on other sites More sharing options...
baldilocks Posted October 16, 2012 Report Share Posted October 16, 2012 It could be the clutch cover gasket as this seals off the gallery that connects the waterpump to the crankcase. it blew on mine but only when i took the bike down the road, the coolant was running off the sumpguard on the other side so i didnt spot it at first. Quote Link to comment Share on other sites More sharing options...
jimbobjames125 Posted October 16, 2012 Author Report Share Posted October 16, 2012 Cheers everyone, I've taken the barrel off and ordered a new base gasket from splat shop. They were the only shop to sell it but will have to wait till Friday as it was out of stock! The old gasket has a tiny crack in it, I really do hope that was the cause. It is only a small crack though. I've also sort of tested the radiator, managed to get the radiator to 25psi in a bucket of water, couldn't see any cheeky bubbles. Cant wait to try it, but putting the piston rings into to cylinder looks some what a challenge. Do I need to oil up the barrel with pre mix? Quote Link to comment Share on other sites More sharing options...
copemech Posted October 17, 2012 Report Share Posted October 17, 2012 Cheers everyone, I've taken the barrel off and ordered a new base gasket from splat shop. They were the only shop to sell it but will have to wait till Friday as it was out of stock! The old gasket has a tiny crack in it, I really do hope that was the cause. It is only a small crack though. I've also sort of tested the radiator, managed to get the radiator to 25psi in a bucket of water, couldn't see any cheeky bubbles. Cant wait to try it, but putting the piston rings into to cylinder looks some what a challenge. Do I need to oil up the barrel with pre mix? Sounds like a good find, and indeed plausable. Seems you found no other external leaks, or entry to gearbox oil. put up a pic if you can Quote Link to comment Share on other sites More sharing options...
tony27 Posted October 17, 2012 Report Share Posted October 17, 2012 I normally smear the barrel with oil before assembling, shouldn't be that hard to fit the piston & rings back into the cylinder as long as you align them correctly with the pins in the ring grooves Quote Link to comment Share on other sites More sharing options...
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