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Nissan diesel engines, and the people who love them
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Post Number:#61  PostPosted: Sun Sep 07, 2008 4:10 pm 
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Joined: Fri Mar 23, 2007 5:29 pm
Posts: 257
Location: Canada
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

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Post Number:#62  PostPosted: Sun Sep 07, 2008 11:28 pm 
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Joined: Sun Sep 07, 2008 9:54 am
Posts: 11
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 ?


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Post Number:#63  PostPosted: Sun Sep 14, 2008 4:40 am 
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Joined: Sun Sep 07, 2008 9:54 am
Posts: 11
Location: France
I found this thread and though it would be good to reference it here:

viewtopic.php?t=1153

seems Philip did have an answer after all :D


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Post Number:#64  PostPosted: Tue Jun 14, 2016 10:00 am 
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Joined: Mon Nov 05, 2012 9:17 am
Posts: 6
Location: Yukon Terr.
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.


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