MicroSquirt.com read only forum (Jan.15,2018)

This may be a dumb or impossible to answer question, but....

I a bought a supposedly brand new fuel pump from a place called efuelpumps.com. The pump came in unmarked packaging (so I don't know a part number), but seemed to be fine on visually inspection. It was advertised to be for Rennaults, Alfa's, and a few other Euro cars I can't remember right now, so I am assuming it is probably a Bosh replacement perhaps from an L-jetronic system.

Anyway, the pump is insane, claw your ears off loud. Also it "ticks" off every now and again and occasionally makes a screeching noise.

I am assuming that I am screwed. But before I go down that path, is it possible that I am missing something? Like a pulsator or resistor or something? The pump does quiet down a bit when I flick the lights on.

Thanks,

Morris

How is it mounted?

My pump came with a mounting kit that consisted on some rubber-coated clamps and a thick foam sleeve the slipped over the pump body. And even then it makes more noise than I would like.

Your mounting may the the source. I mounted mine in exhaust pipe clamps, but lined the clamps with pieces of fuel hose and it's a lot quieter than I thought it would be.

If you use exhause pipe clamps, buy some nylock nuts for the U-bolt side, and make sure you don't tighten them up too much, as this type of clamp could crush a fuel pump.

Jack

You might want to make sure your inlet is free-flowing. Fuel pumps can make some awful noise when they are cavitating due to a restricted inlet or insufficient pressure at the inlet of the fuel pump. Make sure it is as close to the fuel tank as possible.
As far as mounting, the guys are right on about mounting with some rubber between the pump body and clamp. A rubber inner-tube for a tire would work well and be durable in the weather.

Good luck,

Mike

If you have a lift pump check that, make sure the main pump wasn`t designed to run with a lift pump?