I'm getting ready to put a timing belt on the 97' 2.5. I have most eveything I need, including new cam seals, tensioner, water pump. I have one large (1"-1 1/2", something like that) O-ring for the oil pump too. From research it looks like there are two O-rings that seal the oil pump. Is this true? Also what seals the oil pump to the block? Is there some kind of paper gasket or is it a liquid gasket?