Outer Limits 4x4 Board

Gday all just wondering if any one can provide any imformation on adusting the fuel on td42 Patrol. Photos would be appreicated. I need to turn the fuel down on a mate patrol that he just brought. It blow excessive smoke on hills. The person he brought it from fuel turned up after a full engine rebulid. Thanks in advance.

my advise is to take it to a diesel mech and get it done and double checked, just for peice of mind,

I.P. Inline or rotative? I can show you rotative !!

pics and info on rotative pump adjustment would be great

x2 would be great if you can. thanks

x3 need more fuel to keep up

Tomorrow I´ll be playing with fuel delivery on my IP since we have an upcoming trail. I promise I´ll take some pics and document the process.
Bear with me some more...

thanks for help

OK guys, sorry for having you waiting for so long. This morning I gave my TD42 a bigger diesel gulp for the weekend. This is what I do:

First, the tools you'll need.



One 13mm wrench
One 17mm socket
One small flat screwdriver
A ratchet and a few extensions
A socket U joint

On top of the IP (injection pump) locate this 17mm bolt which attaches the return line and loosen it. Be careful, this could be real tight if it's a long time since it was last removed. You can break the bolt or loose a washer. Loose it using the U joint. you need to move the return line out of hte way to access the fuel bolt.





Once again, as you remove the bolt, be careful you loose the washers. There's one on top and one below the return line





In this last pic you see the below washer and the fuel bolt. Mine obviously has no factory seal. Factory seal looks like this.



The bolt on the pic is the one that limits the travel of the IP. It's sort of a governor. But let's get back to the bolt we need (want) to adjust.



Loose the locking nut using the 13mm wrench



And then adjust the bolt. Clockwise to increase fuel. Just a 1/4 turn increases a lot of fuel. Also your idle speed will go up and idle with AC on will greatly increase. You´ll have to adjust this also.



Once adjusted, tighten the locking nut and put it all back together reversing the order.

Hope this helps. Good luck. If I can help you further, just ask.

P.D. Get a reliable pyrometer before playing with your fuel and don't push it past 1250 degrees F.

can you please explain how to adjust the idle?

in the 2nd pick you can see the idle adjustment screw.

I think it has to be said; Mario, you're the man

thanks for your mario it is really appreicated.

U champion will be playing with pump this week then test on weekend thanks again

GQSWB42td wrote:thanks for your mario it is really appreicated.

Anytime buddies. I have learned a lot here. It was about time to give something back to the forum.

Cheers

can do this with out taking off the fuel lines have done heaps that way

xenith wrote:can do this with out taking off the fuel lines have done heaps that way

Can you please document it ? Could save some time here ... !

xenith wrote:can do this with out taking off the fuel lines have done heaps that way

I thought the same thing....

so in the 2nd last pic is that where the pump screw was standard. then the last pic is with it turned up 1/4 of a turn.


only asking this cause i got to turn back a pump and it looks like mine has been turned up a 1/4 of a turn

thanks aaron

money_killer wrote:so in the 2nd last pic is that where the pump screw was standard. then the last pic is with it turned up 1/4 of a turn.


only asking this cause i got to turn back a pump and it looks like mine has been turned up a 1/4 of a turn

thanks aaron

I always do 1/4 turns (back and forth). Try that. 1/4 should be OK, but you need a pyrometer to check EGTs.

Is there anything different on a newer TD42? Mine is a 7/06, I will be fitting an exhaust, pyro and boost tee soon and want to have a crack at winding the fuel up myself.

does turning the fuel up on a na td42 give it much more

macneil wrote:does turning the fuel up on a na td42 give it much more

shit yes. but if u dont know wat ur doing things can melt.

yes i have a few diesel mechanic mates and they said the 1/4 turn trick i was just wondering how much it would give.. mine doesnt blow any smoke atm so might turn it up this weekend!

macneil wrote:yes i have a few diesel mechanic mates and they said the 1/4 turn trick i was just wondering how much it would give.. mine doesnt blow any smoke atm so might turn it up this weekend!

i took mine for a drive when it was would up for the turbo (3/4 turn) it hooked rev to 4k quick and easy reved to 4.5k no prob lots of black smoke but lol.

so wound it back down to (1/4 turn) cause i took the turbo off

money_killer wrote:

macneil wrote:yes i have a few diesel mechanic mates and they said the 1/4 turn trick i was just wondering how much it would give.. mine doesnt blow any smoke atm so might turn it up this weekend!

i took mine for a drive when it was would up for the turbo (3/4 turn) it hooked rev to 4k quick and easy reved to 4.5k no prob lots of black smoke but lol.

so wound it back down to (1/4 turn) cause i took the turbo off

Do you have pictures too do this with a anaroid fitted

benny4x4 wrote:

money_killer wrote:

macneil wrote:yes i have a few diesel mechanic mates and they said the 1/4 turn trick i was just wondering how much it would give.. mine doesnt blow any smoke atm so might turn it up this weekend!

i took mine for a drive when it was would up for the turbo (3/4 turn) it hooked rev to 4k quick and easy reved to 4.5k no prob lots of black smoke but lol.

so wound it back down to (1/4 turn) cause i took the turbo off

Do you have pictures too do this with a anaroid fitted

i dont even know wat a "anaroid" is

Its a boost compensator.

anaroid lets the second lot of fuel in at the set (adjustable) boost pressure.

NOTE:
(more = clockwise) 1/4 turn on fuel adjustment is shit loads more for a 12mm plunger pump! .....so if you have no pyro fitted be careful

good luck

EGT on a NA TD42 gets very hot very fast with the fuel turned up.

when i had my turbo off, just running standard manifold and first length of pipe under the cab, didnt knock fuel back (only see 430* when turbo'd, even on long pulls with LPG, no LPG when NA) and it nearly hit 730* before i lost my bottle and pulled the boot out of it

and that wasnt a very long hill, so yes, be very careful upping fuel on an NA motor, more so than turbod