Tuning new STOCK VE pump...

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Tuning new STOCK VE pump...

Postby Diesel » Mon Mar 16, 2015 7:15 pm

So my original VE pump took a dump by starting to leak bad. Bought a reman. It runs great. But I have a couple issues.

With my old pump the truck would just fire up at any temperature. With the new pump I have to hold down the throttle to get a quick start.

With new pump it seems like after the engine starts, a couple seconds later the idle then goes up (KSB?)?

Wondering how I can get it all back to before?

Is there a KSB adjustment? Or perhaps more/less timing to fix this? I have a totally stock setup and don't really plan to change that - just want the good stock tuning again.
1991.5 D250 Intercooled A518
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Re: Tuning new STOCK VE pump...

Postby Remps » Mon Mar 16, 2015 9:08 pm

Maybe the smoke screw needs screwed down a tad. It'd be the easiest thing to try.
'90 D250 R/C,727,IC,6x.009's,1/8" bump,fuel psi,straight pipe w/5" stack.
'90 W250 R/C,47rh,K@N,HX35,1/8" bump,2nd gen IC,boost,egt,trans temp.3.07's.
'96 2500 S/C L/B,2wd,NV5600,3.54 L/S,cai,egt,pacbrake,mbrp exhaust,10 plate.
Bring back the Bank of Canada, PRE- 1974.
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Re: Tuning new STOCK VE pump...

Postby RCCUMMINS89 » Tue Mar 17, 2015 11:22 am

Potentially a small fuel leak. Check for leaks/wetness.

Idle may be set a little low.
89 RC on shortened 92 diesel frame - NV4500 w/dual disc/4.10s on 37s. - Self built pump, "hot screw", lots of timing, True high volume low pressure lift pump, 62fmw/68/.7gated, 77lpm SAC Inj., Studs/O-rings,- 423/1220 Mustang - 11/16/2013 http://www.TheHungryDiesel.com full line dealer, if you don't see it please ask.
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