Ajusting the fuel pump - easy to do?

[gav]

Recently took my 92 Safari (4.2 manual diesel) in for a WOF and was asked if it blew a bit of black smoke and if I'd like them to look at the fuel pump. I said sure, but it only really blows black smoke when I really put my foot down or struggling uphill now.

Got the truck back and it seems to have lost a bit of it's power

Is it easy to play around with the amount of fuel being pumping into the cylinders without special tools (I was hoping it's just a little screw somewhere). And is it something I want to be playing with? (just minor tweaks!) Or it this something I definitely want to be leaving to the experts?

[curly12]

It is easy to do, if no-one posts up I will dig up info on it. Mine is over fuelling because I had to take the top off the pump to replace the gaskets and didn't set it back to the same spot. It is the nut on the back of the pump. Will look for pictures or you could search my posts to find the article.

[gav]

Hi curly12, thanks for that - good to know! I did Google it, but my auto-Google-search skills aren't the best it seems as didn't find anything helpful. Probably just poor keyword choice.

Been searching for a photo to show me which nut to adjust, but no joy yet. I'm a bit green so wanted to be 100% sure before playing with anything!

[curly12]

go to patrol4x4 and look for the manual..


Coxsy??? Where are you when we need you??

[pressy]

hi gav, where abouts are you in chch?

[gav]

Ok, I've taken a photo top and bottom of the fuel pump (unless I'm really embarrassing myself here and taken photos of something completely wrong!). Is the bolt anything obvious showing on these photos?

Top view:


Bottom view:


Cheers,
Gav

[gav]

hi gav, where abouts are you in chch?

North New Brighton - close enough for me to pop around and you point a finger at the bolt in question?

Ah... just noticed you're in Rangiora.

[pressy]

im in rangiora, is that close in your eyes..... lol.home every night from about 5pm let me know if you want to pop out. 021 310675. where do you wk pm me if you wish?

pressy

[gav]

im in rangiora, is that close in your eyes..... lol.home every night from about 5pm let me know if you want to pop out. 021 310675. where do you wk pm me if you wish?

pressy

Cheers for the offer - much appreciated. May take you up on that if I'm not feeling confident I'm playing with the right thing!

Working over in Lincoln at the moment.

[nismo26]

http://www.mediafire.com/?okaxmv98k89h9d9

Page 112 shows how to adjust it.

[gav]

http://www.mediafire.com/?okaxmv98k89h9d9

Page 112 shows how to adjust it.

Thanks nismo26 - very handy, much appreciated! I'll have a play tomorrow when the light is a bit better.

Any suggestions regarding adjustment increments to make? 1/8 turns, 1/4 turns etc. I'm guessing I only need to make a very minor tweak.

[Dak]

You don't need to alter the screw much at all, be carefull, try 1/8 of a turn at a time, and remember, winding it IN gives more fuel.

[gav]

You don't need to alter the screw much at all, be carefull, try 1/8 of a turn at a time, and remember, winding it IN gives more fuel.

Thanks Dak - much appreciated. Figured I'd do a small increment a day to see what difference it makes.

Thanks again everyone for all your help - legends! Always suprises me how generous and helpful people can be on these forums

[gav]

Cheers guys - success... got my trucks umph back!