Join Date: Jan 2003
Location: Rapid City SD, Black Hills of South Dakota, Queens NY
Since the fuel low-pressure warning light is out, there should be sufficient pressure to run the pump. As a further test, you can fit a "T" into the fuel lines and check the actual pressure. With the engine not running, you will get a steady reading. With the engine running and the microsurges that the plungers create, you'll get a wildly fluctuating reading unless you have a dampened gauge. DO NOT check the fuel pressure with a deadhead reading. The fuel pumps can create very high pressure and blow a line. The SPICA fuel system is a re-circulating one.
Regardless, the pump has to come off to find the oil leak and fix that. While it's off, we can remove some inspection plates and check the operation of the various components.
I'd hold off on replacing the existing pumps. In the 4c system, you can use the fuel supply pump from the L-jet cars, if you narrow the restrictor to maintain adequate pressure in the injection pump fuel manifold. The Monty's restrictor is in the rear rather than in the outlet port of the injection pump. I don't know if the L-jet pump is going to give you sufficient flow and pressure for an 8c motor without modifying the restrictor a bit. I'm sure there's some Monty Alfisti out there on the Monty BB that knows for sure.
Last edited by Roadtrip; 03-25-2005 at 01:53 PM.