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pump timing td42
Posted: Tue Feb 22, 2011 10:00 pm
by TRUCKIE
i have a 94 td42 n/a and i am putting on my new pump i have all the dial indicator gear just wandering what is a good plunger travel for advancing them a bit i know the spec is 0.74mm future plans are to turbo so can i set it up for the future or .... yeah any first hand experience would be helpful i work for cummins so nuthing is too hard on these little engines
Thanks For Youre Help , Mitch
Re: pump timing td42
Posted: Mon Feb 28, 2011 1:02 am
by rumpig89
bump. id be interested to know if anyone has any info, unless its secret information...
Re: pump timing td42
Posted: Mon Feb 28, 2011 5:57 pm
by waandy
rumpig89 wrote:bump. id be interested to know if anyone has any info, unless its secret information...
im also very interested
Re: pump timing td42
Posted: Mon Feb 28, 2011 6:55 pm
by Clanky
No doubt its still a secret
Re: pump timing td42
Posted: Mon Feb 28, 2011 8:57 pm
by Dzltec
Its no secret, .74mm @ tdc is the correct spec. You could go to .8 but it may be noisy. Fuel is what gives you the power.
Andy
Re: pump timing td42
Posted: Tue Mar 01, 2011 12:16 pm
by garth
how much advance? is 6' too much? I think standard is 3' but 6 lowered my egts and gave a good burn.
Re: pump timing td42
Posted: Thu Mar 03, 2011 10:44 am
by kbv8ute
I put mine to .86 no worries boost n fuel and fuel goes well no probs
Re: pump timing td42
Posted: Fri Mar 25, 2011 7:51 am
by waandy
can someone give me a quick run through? I have fully rebuilt my engine, and am about to fit a gu pump and id like to do it myself, so u set engine to tdc, fit pump tool, set to .74 and rotate engine to see how far it drops off tdc?
Re: pump timing td42
Posted: Fri Mar 25, 2011 9:52 am
by Northside 4x4
The sepcs are for the turbo pumps .626mm for Factory Intercooled engines
.740mm for Non intercooled motors.
Another big factor when setting pump timing is what the injector pressure's are set at.
Re: pump timing td42
Posted: Sat Mar 26, 2011 11:28 am
by suggy126
I've got an 89 GQ TD42 that i fitted a GU TD42 turbo pump to. Set to .65mm and it goes an absolute treat.
Never done the injectors on it either. I'd set it to .7 or .74 and run it and see what you think. I'd be disinclined to advance it too much unless it's being done by a diesel professional.
Mine was checked by a diesel pro after i'd fitted the pump and done the timing, all he did was wind the fuel up a little more than i had it and check it over and said it was awesome, could've got more power out, but he reckoned it'd be at the cost of fuel and shorter engine life.
Re: pump timing td42
Posted: Mon Mar 28, 2011 10:16 pm
by Northside 4x4
suggy126 wrote:I've got an 89 GQ TD42 that i fitted a GU TD42 turbo pump to. Set to .65mm and it goes an absolute treat.
Never done the injectors on it either. I'd set it to .7 or .74 and run it and see what you think. I'd be disinclined to advance it too much unless it's being done by a diesel professional.
Mine was checked by a diesel pro after i'd fitted the pump and done the timing, all he did was wind the fuel up a little more than i had it and check it over and said it was awesome, could've got more power out, but he reckoned it'd be at the cost of fuel and shorter engine life.
Its interesting to read, he was a diesel professional. Did he just use the fuel screw? Or do a proper job on the compensator?