JSBanshee Posted June 16, 2019 Report Share Posted June 16, 2019 I just checked for any air leak and I have a big one it won’t even hold air, you can actually hear it come out as I’m pumping, sounds like it’s coming out by the flywheel, any suggestions on where it might be coming out? Quote Link to comment Share on other sites More sharing options...
dano3 Posted June 16, 2019 Report Share Posted June 16, 2019 crankshaft seal or case halves. Pull the flywheel cover off and spray soapy water behind the flywheel to see if you can see exactly where the leak is. You will need to buy a flywheel puller to pull the flywheel off to get a better look and to pinpoint the leak. Quote Link to comment Share on other sites More sharing options...
JSBanshee Posted June 16, 2019 Author Report Share Posted June 16, 2019 If it’s one of those two, would I have to slit the motor? Quote Link to comment Share on other sites More sharing options...
kawa110 Posted June 16, 2019 Report Share Posted June 16, 2019 Yes to reseal cases and yes to replace crank seals. Quote Link to comment Share on other sites More sharing options...
JSBanshee Posted June 16, 2019 Author Report Share Posted June 16, 2019 How would silicon work around the leak ? Quote Link to comment Share on other sites More sharing options...
dano3 Posted June 16, 2019 Report Share Posted June 16, 2019 54 minutes ago, JSBanshee said: How would silicon work around the leak ? Most likely would not and if you got lucky it would only be a matter of time before it returns and ends up burning that piston up costing you more $. Quote Link to comment Share on other sites More sharing options...
JSBanshee Posted June 16, 2019 Author Report Share Posted June 16, 2019 And to check if I burn any pistons, would I know by checking cylinder compression? Because I checked them and each one has 160 with 21cc domes Quote Link to comment Share on other sites More sharing options...
dano3 Posted June 16, 2019 Report Share Posted June 16, 2019 44 minutes ago, JSBanshee said: And to check if I burn any pistons, would I know by checking cylinder compression? Because I checked them and each one has 160 with 21cc domes that should prove top end is in good condition. I would avoid running it any further before you resolve that air leak. Quote Link to comment Share on other sites More sharing options...
n2otoofast4u Posted June 16, 2019 Report Share Posted June 16, 2019 How would silicon work around the leak ?NO Quote Link to comment Share on other sites More sharing options...
SKEETER Posted June 16, 2019 Report Share Posted June 16, 2019 JB WELD > silicon Quote Link to comment Share on other sites More sharing options...
JSBanshee Posted June 17, 2019 Author Report Share Posted June 17, 2019 Thank y’all for the help Quote Link to comment Share on other sites More sharing options...
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