mustangman
Cadet
- Joined
- Jul 21, 2008
- Messages
- 13
I have an 87 90hp and the automatic oiling system has been removed by a previous owner. I just rebuilt the fuel pump and the book says there is supposed to be a check valve on the front of the fuel pump. The problem is one opening had been closed off with a cap and the other has a 90 degree brass fitting that goes to the block from the fuel pump and it has no check valve in it. Since the oil system has been removed is it necessary to replace the brass fitting with a check valve and is it necessary for proper operation of the fuel pump. Thanks.