1hz fuel pump

Submitted: Sunday, Mar 18, 2007 at 22:18

ThreadID: 43385 Views:3466 Replies:3 FollowUps:6

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fishaholic

can anyone tell me how to back the fuel pump back a little?

Reply By: Member - Steve T (NT) - Sunday, Mar 18, 2007 at 22:26

Sunday, Mar 18, 2007 at 22:26

Hi Fishaholic
This one is a job for the professionals, trust me.
Take it to someone who does fuel pumps and injectors.
Cheers Steve.

AnswerID: 228221

Follow Up By: fishaholic - Sunday, Mar 18, 2007 at 22:32

Sunday, Mar 18, 2007 at 22:32

cheers
you will be sick of sorting my probs out soon lol

FollowupID: 489008

Reply By: Allan JJ - Monday, Mar 19, 2007 at 05:20

Monday, Mar 19, 2007 at 05:20

I agree
Get someone who know what they are doing.

It could will end up costing you if you get it wrong

AnswerID: 228237

Reply By: Member - Nick (TAS) - Monday, Mar 19, 2007 at 08:29

Monday, Mar 19, 2007 at 08:29

Easy one mate.On the back end of the pump where the injector pipes come in there will be a threaded rod with lock nut on it(if its still factory set it will have a bullet shaped cover over it).Get some one to watch your rpm's and screw it in to lean it off and out to richen it.About a quater of a turn will drop 250rpm off the tacho(did mine).Cleaned up the smoke(lots) in ours and didnt effect power at all.In fact ours runs smoother and revs crispier(like our weather) than before.

AnswerID: 228258

Follow Up By: Middle Jeff - Monday, Mar 19, 2007 at 09:37

Monday, Mar 19, 2007 at 09:37

Hi

What he said, easy as. You are only adjusting the fuel flow not changing the pump timing.

Have fun

Craig

FollowupID: 489078

Follow Up By: Member - Tony J (NSW) - Monday, Mar 19, 2007 at 12:10

Monday, Mar 19, 2007 at 12:10

"screw it in to lean it off and out to richen it" - are you sure??? My manual says turn it in to increase fuel and out to lessen fuel.

Tony

FollowupID: 489092

Follow Up By: furph - Monday, Mar 19, 2007 at 13:23

Monday, Mar 19, 2007 at 13:23

The threaded screw has a locknut and a crimped/spot welded sleeve to prevent it being turned further in.
Further in (clockwise) increases fuel, out (antic/w) reduces fuel. Try turning 1/2 to 3/4 turn out for reduced smoke at under load conditions and a 10/15% improvement in fuel economy. You will notice the need to use the gears more, there is a power drop off. Big benefit in keeping the oil cleaner for a longer period though. Did this to mine whilst quite new. Just back from a 2000km. trip towing a 15' van at 13.8l/100km. Now done 180000km. ('97 mod.)

FollowupID: 489096