Bolt Hole...should it be plugged

pappysc2

Cadet
Joined
Jul 5, 2007
Messages
12
Got a bolt hole in the block back behind the oil pressure sending unit. should this have a bolt in it? To my knowledge, it has been like that since I have had the boat. The picture makes it look like it is verticle, but it sits mostly on a horizontal. Just trying to cover all my bases.bolt2.jpg
 

Alwhite00

Master Chief Petty Officer
Joined
Apr 14, 2011
Messages
885
Re: Bolt Hole...should it be plugged

What motor is it?

LK
 

pappysc2

Cadet
Joined
Jul 5, 2007
Messages
12
Re: Bolt Hole...should it be plugged

Sorry, it might help if you knew. 4.3 cobra '87
 

Idlespeedonly

Senior Chief Petty Officer
Joined
Jun 30, 2011
Messages
779
Re: Bolt Hole...should it be plugged

I think it is a pipe thread hole for a knock sensor used in an automotive application.
 
Top