I have a tecumseh ohv engine that is leaking pretty bad all of a sudden. What is the best gasket maker to use on an air cooled engine like this? I was thinking the Permatex Ultra Black or Grey, or should I use the higher temp Copper stuff?
JR said:Permatex aviation grade gasket maker. I never have good luck wkth rtv style stuff.
Head/metal gaskets get stay on copper.
I know you said Tecumseh. Briggs says install dry. I still use aviation sealant/maker.
I use it on automotive stuff. It gives you a working set in 15 minutes. RTV takes hours to cure.