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Seadawg33

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About Seadawg33

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    TT Newbie

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    California
  1. Seadawg33

    Test for the center gasket leaking

    @ nesc103y sorry should have listed it. The bike is a 2004 CRF 250R. Is disconnecting from engine and then blowing air thru the hoses a good enough test or do they need to be snaked? @ 05CRF250 No we just replaced the one on the right side of the engine. Should we do the left side as well? @ Shawn_Mc we purchased a new seal for the 2006 model which I have read is supposed to be better. When we took the old seal out it looked to be in good shape. The numbers were facing out on the right side seal. I read on TT they should be facing in. Is it worth taking the seal out and re installing with loctite 609. I would have to buy a seal removal tool because the drill and screw method wouldn't be good. The bike has not run yet. Thanks for the info and help everyone I appreciate it.
  2. While I enjoy spending time with my son working on his dirtbike I think it should run for more then day before we need to fix it again. He had an oil migration problem trans to engine. We replaced both the crank and the balance seal. It wouldn't start after we got the engine timed. checked the valves rechecked the timing and finally did a leak down test. Didn't hold worth a darn. Took it apart and looked it over and put a new head gasket in and it started first time. So he's off on his trip with his buddies and texts me saying the bike is running great. Better then ever "Thanks Dad!" Next day he tells me the oil migrated again. As far as I can tell there are only two possible problems the crankcase seal or the center gasket. Ordered a new seal. This time I went with the '06 and going to install it when he gets back but wondering if there is a test for the center case gasket. I can't find an oil flow diagram in theClymer manual but that would be helpful. Is there one available anywhere? I can't see how a leakdown test would tell me if the crankcase center gasket was broken but I guess that is a possibility. Any ideas or help would be appreciated
  3. While I enjoy spending time with my son working on his dirtbike I think it should run for more then day before we need to fix it again. He had an oil migration problem trans to engine. We replaced both the crank and the balance seal. It wouldn't start after we got the engine timed. checked the valves rechecked the timing and finally did a leak down test. Didn't hold worth a darn. Took it apart and looked it over and put a new head gasket in and it started first time. So he's off on his trip with his buddies and texts me saying the bike is running great. Better then ever "Thanks Dad!" Next day he tells me the oil migrated again. As far as I can tell there are only two possible problems the crankcase seal or the center gasket. Ordered a new seal. This time I went with the '06 and going to install it when he gets back but wondering if there is a test for the center case gasket. I can't find an oil flow diagram in the Clymer manual but that would be helpful. Is there one available anywhere? I can't see how a leakdown test would tell me if the crankcase center gasket was broken but I guess that is a possibility. Any ideas or help would be appreciated
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