I've used wheel bearing grease in the past.
to hold the push rod back when replacing a mechanical fuel pump?
What engine? Some engines have a bolt in the front of the block that you remove and install a longer bolt - it will hold the rod in place. Then you remove and replace with the original bolt. But that only applies to some engines....
ok thanks. would permatex form-a-gasket or pipe dope work for sealing that bolt?
and about my other question, do you have an idea on using a silicone or gasket glue on one side of that gasket?