procharger Posted October 28, 2015 Report Share Posted October 28, 2015 How many o rings are there in both push rod tubes, is it just two at base at crank case or is it two also at top? 850 930 for base of engine? Link to comment Share on other sites More sharing options...
Tom Baker Posted October 28, 2015 Report Share Posted October 28, 2015 Just the base. They are glued into the top with Loctite 648. Link to comment Share on other sites More sharing options...
Tom Baker Posted October 28, 2015 Report Share Posted October 28, 2015 There is a pretty complete parts list of parts in the SI that I posted in the other thread. Link to comment Share on other sites More sharing options...
Anticept Posted October 28, 2015 Report Share Posted October 28, 2015 I was so confused... i was thinking airframe controls (also called push rods) until you said crank case. Link to comment Share on other sites More sharing options...
Tom Baker Posted October 28, 2015 Report Share Posted October 28, 2015 I was so confused... i was thinking airframe controls (also called push rods) until you said crank case. I knew what he was talking about, because of his other thread about a oil leak. Link to comment Share on other sites More sharing options...
Anticept Posted October 28, 2015 Report Share Posted October 28, 2015 It's hard to use a phone to visit theae forums Link to comment Share on other sites More sharing options...
Doug G. Posted October 28, 2015 Report Share Posted October 28, 2015 It's hard to use a phone to visit theae forums Use the mobile version. Link to comment Share on other sites More sharing options...
procharger Posted October 28, 2015 Author Report Share Posted October 28, 2015 Here are sizes from lockwood qty 1 250 510 87x2 bottom of cylinder 1 430 205 6.4x1.8 bolt o ring valve cover 1 250 285 105x2.5 valve cover 2 230 910 34x2 intake 2 850 930 16x5 push rod tubes 1 950 180 19x2 coolant nipple Link to comment Share on other sites More sharing options...
Anticept Posted October 28, 2015 Report Share Posted October 28, 2015 Use the mobile version. i hate mobile versions of anything. Link to comment Share on other sites More sharing options...
Tom Baker Posted October 28, 2015 Report Share Posted October 28, 2015 950-180 is the O-ring for the coolant nipple. Also you will need to loosen the exhaust to pull the head. The exhaust lock nuts should really be replaced if they are removed. Link to comment Share on other sites More sharing options...
Tom Baker Posted October 28, 2015 Report Share Posted October 28, 2015 If you have the cylinder off I would also install the 431-411 double o-ring for the studs. The problem I found is the cooling shroud needs to be removed to get good access to the cylinder base o-ring. To take the cooling shroud off things get much more complicated. Link to comment Share on other sites More sharing options...
procharger Posted October 28, 2015 Author Report Share Posted October 28, 2015 I don't think I will have to remove the shroud seeing that it's the front left cylinder, I thought someone said thee were no o rings on my engine for the studs?? Link to comment Share on other sites More sharing options...
Doug G. Posted October 28, 2015 Report Share Posted October 28, 2015 i hate mobile versions of anything.That's what your phone is! ???? Link to comment Share on other sites More sharing options...
Tom Baker Posted October 28, 2015 Report Share Posted October 28, 2015 I don't think I will have to remove the shroud seeing that it's the front left cylinder, I thought someone said thee were no o rings on my engine for the studs?? Your engine was not manufactured with the O-rings. It is a after the fact fix by Rotax because of the little oil leak that showed up on some engines. All of this is covered in the SI that I posted in the other thread. Link to comment Share on other sites More sharing options...
Anticept Posted October 28, 2015 Report Share Posted October 28, 2015 That's what your phone is! Thus, I am cursed by this torturous device until the end of my days... But seriously, you smart ass Link to comment Share on other sites More sharing options...
Tom Baker Posted October 28, 2015 Report Share Posted October 28, 2015 I just replaced all these seals on a CTSW. I won't say it can't be done, but replacing the cylinder base O-ring will be tough without removing the shroud, even on one cylinder. Since you said left front cylinder take a look at crankcase in between where the pushrod tubes go. Your little oil leak could be the precursor of a bigger problem. I have been told and seen pictures of a crack in the case in this area. They said normally you won't notice a problem, until the engine gets hard to turn. Link to comment Share on other sites More sharing options...
Doug G. Posted October 28, 2015 Report Share Posted October 28, 2015 I do nearly all my "computer stuff" on my phone because it is mobile. Some old people have a tough time with change and technology. (I am 65 BTW.) lol Link to comment Share on other sites More sharing options...
Anticept Posted October 28, 2015 Report Share Posted October 28, 2015 I usually use a tablet, and i hate mobile sites. Responsive web design is much better than mobile side design, since it can accomodate both without compromising fuction. Link to comment Share on other sites More sharing options...
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