Tips for sealing the exhaust

[Kevin Feil]

I have been using 3M Copper Gasket High Temp spray for ages when I build my Street bike and Jet ski engines, Never had an issue. I always (on used Pipes) have Decked the exhaust manifold on the pipe using a sharpie and coloring in the mating surface "Black" or Prussian blue if you are a machinist. Sand in a figure 8 motion till there is no more paint or sharpie, (No More High/Low spots or Lifts)(clean surface with applicable solvent) then take a rubber glove and shake up the copper gasket can and spray on your finger and begin blotting the mating surface of the exhaust pipe manifold. this will begin to get tacky and sticky. apply some more until you get a good coating, Bolt that bad boy up(evenly) and your Done. it will never leak!! Funny I started doing this with my helicopter engines and Bobby Watts and I were talking and he does the exact same thing.. Auto zone or any automotive stores have this. Of course everyone has there preference. but I guarantee this one works and you don't have to worry about (Fodded out glow plugs).

K

[Brandon Bartolomucci]

Thought I'd report back in here since I've had the chance to get a good amount of flights on since I sealed my exhaust. As previously mentioned, I used black high temp RTV sealant available from any auto parts store.

I have had zero issues since. No plug, temperature, or tuning problems. So it appears it is another option if someone wishes to take that route.


Regards,
Brandon Bartolomucci
Sent from my iPhone