Mahatma Posted December 23, 2012 Report Share Posted December 23, 2012 I have bought a new enginecover to my cb900c as the old one was leaking abit of oil.My question is:Do I just install the rubber gasket between the cover and engine straight,or do I need to apply something to it before installing it? Thanks in advance:) Link to comment Share on other sites More sharing options...
lorenzo Posted December 24, 2012 Report Share Posted December 24, 2012 I don't know the answer to your question, but if you do need to use something, the word on the street is that 'three bond' is the stuff to use. Link to comment Share on other sites More sharing options...
krazyk Posted December 24, 2012 Report Share Posted December 24, 2012 I used three bond (drei bond) its from Bmw I had a leaking thermostat housing on the car. Its got a vrry fine nozzle , sets like silicone but high temperature range up to 250 deg. C and quite easy to clean off Hth Kk Link to comment Share on other sites More sharing options...
Mahatma Posted December 24, 2012 Author Report Share Posted December 24, 2012 Thanks for answers.Will look into it:) Link to comment Share on other sites More sharing options...
kanerdog1x1 Posted December 24, 2012 Report Share Posted December 24, 2012 Come on guys, keep it British. 'Hylomar blue' ftw. Link to comment Share on other sites More sharing options...
Mahatma Posted December 24, 2012 Author Report Share Posted December 24, 2012 Will look into that too kanerdog.Looks promesing:) Link to comment Share on other sites More sharing options...
Mahatma Posted March 2, 2013 Author Report Share Posted March 2, 2013 Got the Hylomar blue,and bought a highheat silikon sealant (up to 310 C) which stated that could be made into replacement gasket.Trouble with my topend is that I have a feeling it's not completely straight.Any suggestions to what to go for? Maybe just weld it shut Link to comment Share on other sites More sharing options...
chancho196 Posted March 3, 2013 Report Share Posted March 3, 2013 If both surfaces are clean and undamaged, a new gasket should be fine on its own, but for piece of mind it's a good idea to put a tiny dab of instant gasket in the corners where the gasket runs over a cam cap (not always applicable), or where the "D" shaped rubbers seal the cutouts in the cylinder head. What's not completely straight? Link to comment Share on other sites More sharing options...
lorenzo Posted March 3, 2013 Report Share Posted March 3, 2013 If you think the head's warped then you can get this checked out and, if need be, get the head skimmed. The problem comes when it's warped that much that you're changing things like the compression ratio as you skim lots off it to get it flat again. Don't guess that it's wrong though, it's almost impossible to tell without the right equipment. Link to comment Share on other sites More sharing options...
Mahatma Posted March 3, 2013 Author Report Share Posted March 3, 2013 Thnaks for replies.Think I'll go for Hylomar,and hope that it works.Not flushed with money at the moment,so have to go with the DIY approach. Link to comment Share on other sites More sharing options...
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