4BD1 running like a pig!

[County3.9]

Decided to clean the delivery pump inlet filter screen (first time I've done it since I brought it in 95') and change the fuel fiilter today...result...she's running like a pig. I bleed the fuel but it only lasts a minute before dying. Needs bleeding again. I think the system is sucking air in around the banjo nut washers on the delivery pump inlet.
My questions...
1. Do the washers generally need to be replaced once disturbed?
2. Are the washers an ISUZU speciality part or can I use a generic washer (I'm in perth and the only shops open on a Sunday are super crap and bunnings). Any suggestions?
3. The books says to line up the arrow on the banjo bolt with the pipe...sounds easy,?? There are three arrows on the bolt and once tightened none seem to line up! Any advice on this?

[sclarke]

Ahhh the old Air in the Injection system...
are there copper washers on the fittings?
if so just reverse them, that sometimes works...
or buy a V8 for it..... :)

[County3.9]

The washers are steel, coated with rubber/ plastic. I was thinking about buying some copper ones, do you think that will work?

[justinc]

Definately replace the washers with copper ones. The steel/ rubber ones are usually single use if left on there for THAT long! Since new?

JC

[GeorgeZ]

Anneal the washers to get them as soft as possible.

First abrade the washers by sliding against some 800 grit wet and dry on a known flat surface (drill press table or a piece of flat glass) so they become flat and shiny exposing un-oxidised copper.

Heat them by holding with long nose pliers over a flame, kitchen stove for example. Heat till the shiny copper changes colour to a blue then air cool them on a piece of wood.

Abrade them again on 800 grit wet and dry against a known flat surface, and bobs your uncle.

[Dougal]

First abrade the washers by sliding against some 800 grit wet and dry on a known flat surface (drill press table or a piece of flat glass) so they become flat and shiny exposing un-oxidised copper.

That's the hard part. Shining up steel washers till the copper shows.:D

[abaddonxi]

Decided to clean the delivery pump inlet filter screen (first time I've done it since I brought it in 95') and change the fuel fiilter today...result...she's running like a pig. I bleed the fuel but it only lasts a minute before dying. Needs bleeding again. I think the system is sucking air in around the banjo nut washers on the delivery pump inlet.
My questions...
1. Do the washers generally need to be replaced once disturbed?
2. Are the washers an ISUZU speciality part or can I use a generic washer (I'm in perth and the only shops open on a Sunday are super crap and bunnings). Any suggestions?
3. The books says to line up the arrow on the banjo bolt with the pipe...sounds easy,?? There are three arrows on the bolt and once tightened none seem to line up! Any advice on this?

Well if it ain't broke, don't fix it. Put that '95 fuel filter back in and you're sorted.:D:D:D

Sorry
Simon

[procrastination inc]

the steel / rubber washers sound like "dowty" seals. Available from your local hydraulics store. They can get damaged if sitting for a while and the disturbed.

Copper washers are good. make sure they are annealed though. Old ones will harden with age. to re soften, heat to just glowing and let it cool in air to about 100C and quench in water to remove the scale.

[Bigbjorn]

Jesus Christ. Just replace them. Don't phuque around. They are about a dollar a thousand. Get a few assortment kits and put them on your shelf. Copper washers, fibre washers, spring and flat washers, springs, o-rings, small fasteners, e-clips, Jubilee clips, split pins, hair pins, etc. For an outlay of $500 you will have a lifetime supply of these items for a private owners workshop.