Re: '89 Evinrude 90HP Piston #1 Keeps Blowing Out
Okay, I'm getting ready to put this thing back together once I pick the piston up tomorrow.<br /><br />If it is electrical, is the ignition coil the most likely source of the problem? I have ordered a new set of coils.<br /><br />My Clymer manual says to put gasket sealant between the block halves, which we have done the last 4 rebuilds. This, however, seems to be producing sludge in the crankcase, esp in the #4 cylinder. (A reminder that it is the #1 that keeps blowing out). The sealant that we used said it was fine to use where in contact with gas, but it appears that this is not the case. I have cleaned off what residue remained between the block halves. I have talked with several mechanics who looked at me like I had 2 heads when I said this is what the manual said to do. What is your opinion? Gasket sealant or no?<br /><br />Is there a way to test a carb jet to see if it is functional? Dhadley suggested that I bump up the mid and high speed jets. Is there a way I can verify that these things are even working before I go and richen up the mix?
Okay, I'm getting ready to put this thing back together once I pick the piston up tomorrow.<br /><br />If it is electrical, is the ignition coil the most likely source of the problem? I have ordered a new set of coils.<br /><br />My Clymer manual says to put gasket sealant between the block halves, which we have done the last 4 rebuilds. This, however, seems to be producing sludge in the crankcase, esp in the #4 cylinder. (A reminder that it is the #1 that keeps blowing out). The sealant that we used said it was fine to use where in contact with gas, but it appears that this is not the case. I have cleaned off what residue remained between the block halves. I have talked with several mechanics who looked at me like I had 2 heads when I said this is what the manual said to do. What is your opinion? Gasket sealant or no?<br /><br />Is there a way to test a carb jet to see if it is functional? Dhadley suggested that I bump up the mid and high speed jets. Is there a way I can verify that these things are even working before I go and richen up the mix?