Smoke Screw help

[jaynes]

There is a cap on the top of my fuel injection pump, which I'm sure you all know about. Is the smoke screw under that? I tried to pry it out using a small screw driver, but I can't get it to pop out. But I thought that I would quit trying until i was completely sure thats where it was. I'm lookin for just a bit more smoke... but not too much. Thanks!
Josh

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'91 D-250, Cummins, 3 speed auto, 165k, Hurculiner bedliner, after market bumper,custom one tone metallic blue paint job (sorry no pics) and completely stock... . for now anyway

 

[BushWakr - RIP]

yup thats what your pryin on. The cap can be tight and I've read that some are downright determined to stay in. Under the cap is a 13mm locknut and a #25 torx screw. Turning that clockwise (1/4 turn for me made a diff) will increase the early fueling/smoke and improve your 'launch'feel. Counterclockwise just the opposite of coures. I've read that at full throttle you should have a "grey translucent cloud" not black. This indicates near idea fueling. OPEN TO CORRECTION PIERS !
Hope that helps.

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93. 5 D250 4X4,HD Spring Pkg, Rancho 7000's, Rear Swaybar,Dual Shock Front Stabilizer,BD Injectors,31/2" Mandrel bent exhaust,16cm 'Hot End',Modest Pump Tweaks/Timed,K&N Air,Isspro Pyro,Tach,transmission Temp,Auto Meter Oil Filled Boost Ga. , 3:54's, 4 Speed Auto, Clubcab, Aftermarket Reclining Buckets w/ctr Drop Down seat/console, Black over Silver, 21psi,285-65R-16's,American Racing Clear Coat Mags, Amsoil 15W-40HD Marine,12,000 lb. Warn Winch,KC Spots. 97,000 Kms.

[This message has been edited by BushWakr (edited 02-11-2001). ]

 

[Cummnzpowr]

I turned mine up 2 full turns, and i smoke like a m&ther at low boost! and that cap should come off keep prying at it. It'll slide up. .

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Greg's 1993 D250 4x2. . 5-speed. . extended cab. . longbed. . bright white. . tinted windows. . 4-inch stack through bed. . K&N air filter. . holes in air box... Tweaked pump... . PW injectors... 12CM housing... "The Phantom"

 

[dpuckett]

Originally posted by jaynes:
... I tried to pry it out using a small screw driver, but I can't get it to pop out...
[/B]

Josh,

Try a pocketknife blade. Lot thinner than a screwdriver.

Daniel



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Daniel's current truck: 1993 W350 club cab, 5 speed, treadplate aluminum flatbed, 4. 10 rear end, straight pipes, K&N, "slightly" tweaked pump. ISSPRO color coded pyrometer and 50psi boost guage. NRA Life Member (since age 12) and d@mned proud of it. IRBCTS.

 

[jaynes]

Funny that you mention a pocket knife... i tried usuing a knife of sorts... and the tip broke off in between the cap and the cavity that the cap sits in. Its not a problem, there is no damage being done, but thats my experience with a knife and the injection pump cap. I'll keep working on it though. Also maybe I should consider "stacking" the truck if I want to blow smoke... don't want to blind everybody in traffic... although I've always wanted stacks... need to lift it too... so much to do... but so fun!


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'91 D-250, Cummins, 3 speed auto, 165k, Hurculiner bedliner, after market bumper,custom one tone metallic blue paint job (sorry no pics) and completely stock... . for now anyway

[This message has been edited by jaynes (edited 02-13-2001). ]

 

[Lil' Dog]

For what the cap is worth, just drill a small hole in the middle and insert a small metal screw, voila!

J-eh

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Jason Hoffman
Lil' Mack - 89 D250LE 5 Spd 3. 54 LSD Reg Cab. K&N,"tweaked pump", BD Injectors, Banks Pyro/Boost, 3. 5" Exst tail section straight. E&M Custom seats. Bosch H4, PIAA 80W/80W HdLites. 100W Drv,55W Fogs.
237,500 miles (380,000 Kms) 7850 Hrs. Cummins Power Booster member.
The Original Turbo Diesel

Lil' Mack Pics 07-00

 

[BushWakr - RIP]

Hey I just had a thought... did you buy your truck new? If not then perhaps the old owner already had that off and sealed it back. I read somewere in here that you can remove the cap and when done, put it back with a bit of locktite or somesuch thing to give it the "untampered" look/feel.
But hey... what do I know. ;-)

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93. 5 D250 4X4,HD Spring Pkg, Rancho 7000's, Rear Swaybar,Dual Shock Front Stabilizer,BD Injectors,31/2" Mandrel bent exhaust,16cm 'Hot End',Modest Pump Tweaks/Timed,K&N Air,Isspro Pyro,Tach,transmission Temp,Auto Meter Oil Filled Boost Ga. , 3:54's, 4 Speed Auto, Clubcab, Aftermarket Reclining Buckets w/ctr Drop Down seat/console, Black over Silver, 21psi,285-65R-16's,American Racing Clear Coat Mags, Amsoil 15W-40HD Marine,12,000 lb. Warn Winch,KC Spots. 97,000 Kms.