I have this Renault J8S engine in an 89 Trafic. I used to start it every six months or so to make sure it was still ok. Now it is a pig to get going and sometimes has to be bled. (There is nothing wrong with the timing or the glow plugs, OK?)
2007-02-23 06:10:44 · 9 answers · asked by SouthOckendon 5 in Cars & Transportation ➔ Maintenance & Repairs
When it is stared it runs perfectly
2007-02-23 06:16:18 · update #1
When STARTED it runs perfectly. It is a CAMPER and is only used a couple of times a year. From 1993 til 2006 it never once failed to start when asked. Fuel was never an issue. On one occasion the same tankful took four YEARS to use. The filters are fine. Can we start over ?
2007-02-23 07:10:16 · update #2
It has been pretty well covered in the answers prior this one. I have never laid my hands on one of there engines, but most domestic Diesels have a check valve on the inlet side of the primary fuel filter, which keeps fuel from leaking off back to the tank.
What you said about a tank of fuel lasting four years is kind of scary...Diesel fuel does tend to grow a fungus in it over time. The process is called estherfication. This crap will plug your filters pronto, so I would say to not ever let fuel sit for that long. I could go on and on, but it has been pretty well covered by others.
2007-02-24 01:10:19 · answer #1 · answered by ddc671mechanic 2 · 0⤊ 0⤋
Hi
It may be that the fuel is feeding back to the tank so that is how the air is getting in it. Have you got a manual pump in the fuel line cos that is an easy way to get fuel to the injectors and they aren't too difficult to fit. One other thing. Why not sell the engine if you only start it every six months??
Dean
2007-02-23 14:23:18 · answer #2 · answered by Dark Prince 4 · 0⤊ 0⤋
A tiny air leak can allow the fuel to run back eventually, allowing the fuel line to empty. Then, when you try to start it it struggles to pump the fuel up - the need to bleed proves the point.
Personally, I'd clean out the entire fuel system & refill with fresh diesel, if it's been in there that long there'll be all sorts of crud settled out.
2007-02-24 08:07:19 · answer #3 · answered by champer 7 · 0⤊ 0⤋
Its possible you need to bleed your fuel system. Difficult starting though sounds very like the problems caused by a badly dirty fuel "FILTER" its not a big job to bleed the fuel and its not a very difficult job to replace the filter, diesels are prone to waater accumulating in the fuel line so it'd be worth even removing the filter housing...empty it into a clean container (so that you can see what was init) and replace it .of course youll need to bleed the air from the system before starting up the motor.
2007-02-23 14:30:28 · answer #4 · answered by davosharpe 2 · 0⤊ 0⤋
The fuel is getting old and the fuel filter is getting clogged. Take it out and drive it and put a new filter and some fresh fuel in it.
2007-02-23 14:26:20 · answer #5 · answered by yes_its_me 7 · 1⤊ 0⤋
Might there be an airleak in the fuel system? Even a tiny pinprick hole that you can't see? Or some tiny particle of dirt blocking up the injectors maybe?
2007-02-23 14:14:31 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Could be your none return valve on the fuel line is passing, or the fuel pump gasket is broken dragging in air.
2007-02-23 14:22:37 · answer #7 · answered by James M 2 · 0⤊ 0⤋
It's not impossible as the fuel could slowly make it's way back to the tank.
2007-02-23 18:40:09 · answer #8 · answered by Bandit600 5 · 0⤊ 0⤋
yes because its old and rubbish
2007-02-23 16:52:51 · answer #9 · answered by Anonymous · 0⤊ 0⤋