Quote:
Originally Posted by jmansracerocket
, and i got a bolt to cover that hole in the head!  |
be mindful of the bolt length . it's a 8m/1.25 by aproximatly a 1/4" long. That hole is a direct passage into the oil channel that feed oil to the head. The hole is a tapped port to connect a oil presuure unit on some obscure models. Get the bolt length too long you block oil flow to the head. Not Good!!! I'll bet it pumped oil like crazy when you spun it over! There can be 20 lbs of pressure going through that passage. don't run the motor without the plastic shrouds in place. they are important. Those shrouds channel cool air around the head to control overheating