I've been going with the stock set-up less the OFV valve and have not had a problem since I punched it out. YMMV
N_R
Over Fuel Valve (OFV) operation
Moderators: plenzen, Nissan_Ranger
-
- Posts: 270
- Joined: 17 years ago
- Location: Canada
-
- Posts: 11
- Joined: 15 years ago
- Location: France
Thanks N R. The problem with that is you will not create a pressure in the IP fuel chamber as it is open to the return line without a restriction. Yes it will work and is the set up on many a diesel of old I've looked at. But, a little pressure in the IP fuel supply line (1-2 bar) is good for stability and air pocket release I'd have thought.
I think one of the reason's Philip modified his set-up was because he thought he had too high a pressure. It wasn't clear to me from the postings as to whether the problem was caused by a faulty OFV or the updated lift pump he had. I wonder if you could modify the OFV with a slightly larger orifice, this should bring the pressure down ?
I think one of the reason's Philip modified his set-up was because he thought he had too high a pressure. It wasn't clear to me from the postings as to whether the problem was caused by a faulty OFV or the updated lift pump he had. I wonder if you could modify the OFV with a slightly larger orifice, this should bring the pressure down ?
-
- Posts: 11
- Joined: 15 years ago
- Location: France
I found this thread and though it would be good to reference it here:
http://nissandiesel.dyndns.org/viewtopic.php?t=1153
seems Philip did have an answer after all
http://nissandiesel.dyndns.org/viewtopic.php?t=1153
seems Philip did have an answer after all
-
- Posts: 6
- Joined: 11 years ago
- Location: Yukon Terr.
Re: Over Fuel Valve (OFV) operation
I think the air comes from the fuel discharge line, that goes back to the tank from the filter housing; it is the only line that is open to the atmosphere, as it dumps in the tank with no line into the fuel. I have connected the return line and the discharge line from the filter housing, and pluged the two ports on the filter housing. I have been able to drive with the tank below 1/8th, and previously it would quit if half or below. So far so good. I am now unable to reduce the fuel pressure form the delivery pump, but so far have not blown any hoses.
Who is online
Users browsing this forum: Google [Bot] and 6 guests