Carburator help please.

I bought a 1991 Jeep engine, a 2.5 liter with the AX5 transmission. I got it from a college guy that replaced it with a 5.0 Mustang engine. Knowing he was never using the engine again, the guy cut the bundle of wires going to the throttle body.

My plan is to put on a 32/36 Webber carb on the TB intake; an adaptor can be had for ~$25.

Here's the quandry: Fuel delivery. There is no mechanical pump on the engine or a spot to bolt one. If I get an electric fuel pump, it would deliver the PSI required for fuel injection, too high for a carb. Get a pump and a regulator to reduce the pressure? If so, do I need a return line from the pump to the tank to return the unused gas?

Plan B?

Dan

You would just need a return regulator to bleed the pressure down to carb levels, if reusing the intank pump. Yes to a return line.

A Geo Metro electric in tank pump is low pressure. It will dead head at 30-35, but runs normally at about 10. A regulator would bleed off at the correct pressure, back to tank, but some carbs do as well.

If you get an electric pump... meaning you don't have one yet?

Get an electric pump for a carburetor. Problem solved. One of the $35 parts store buzzboxes should be plenty for that engine's needs.

Knurled wrote: If you get an electric pump... meaning you don't have one yet? Get an electric pump for a carburetor. Problem solved. One of the $35 parts store buzzboxes should be plenty for that engine's needs.

I'd still put a regulator on it. Those parts-store cheapies can overwhelm a DGxV. BTDT.

FWIW, I've been feeding the 40DCOEs on my 2002 with a Carter 4070 (low-pressure rotary vane external pump, no regulator, no return line) for close to 20 years without incident.