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    Mechanical High Idle for All Cummins Trucks

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    Me78569

    Mechanical High Idle for All Cummins Trucks

    Here is another version of high idle you can produce for you dodge Cummins. A member over at Cummins Forum came to me with his version of high idle. Thank you WJBell for your information and allowing me to post here on my site...

    WJBell's High Idle Write Up

    Original Information is here.
    http://www.cumminsforum.com/forum/98-5-02-powertrain/111278-mechanical-high-idle-bomb-completed.html

    Since seeing Mopar Mans high idle I've been wanting to do something like it. I live in California so I really don't need it but for cold morning warms up's it's kind of nice. And if I idle it for a long time I've heard you can cake up the valves or warp cylinders. So I checked with three different dealers in my area and they all wanted $100+ to program the stock high idle. What I really wanted was the PTO idle controlled through cruise control but not available for my 2001.

    So... I decided to make my own PTO idle.

    I looked through some different posts and a couple guys did it with a high idle solenoid from Chevy's with a Rochester carb. So I went to pick & Pull today and picked one up for $7 off of a late 70's early 80's truck. Then I went to Ace hardware and picked up some 1/16 steel cable, a cable end stop and a thing to slip over the cable to tie it down.

    The one guy I saw mounted it on his APPS to push the throttle open, like an extended stop screw for the throttle. I didn't want to leave my APPS cover off or hack it up so I looked where I could mount it where the pedal pulls the cable under the dash. It wouldn't fit behind the pedal lever but there was a place where I could mount it where it pulled the top of the pedal where the cable was. And there is a bolt there in perfect position to mount the existing bracket on the solenoid. All I had to do is hacksaw off part of the bracket and it fit perfect.

    So I got a piece of 1/4 thick aluminum roughly about 1 3/4" long and 3/4" wide and mounted it to the end piece of the solenoid, drilling through them both and securing it with one machine screw. Then on the other end where the cable comes through I got a short, 3/4" long bolt (not sure what size but something that will fit into the aluminum bracket) and drilled it out though the center. Then drilled the aluminum bracket a little smaller than the bolt and force threaded the bolt into the bracket. (poor man's tap & die. Hey, it's aluminum!) So now the cable feeds in through the top of the bolt and you can fine tune the idle speed by tightening or backing out the bolt. So I ran the cable through, looped it around the pedal and tied it together with a 1/8" (can't remember what it's called) with an Allen set screw to tighten it down.

    I already had a switch wired through a relay up in my overhead sunglasses compartment so I just wired it to the solenoid.

    Started the truck up, flipped the switch and tapped the throttle and idle went up to about 1400. Turned off the switch and it dropped to normal. The solenoid doesn't have enough power to raise the idle by itself, you have to tap the throttle. After some adjustments, I got the high idle to right around 1100-1200. It's sweet. Start the truck, hit the switch and tap the throttle and you're at 1100 rpm. Turn off the switch and you're back to normal.

    There's no effect on the pedal, you can't feel any binding, etc.

    Works pretty sweet. Not bad for a couple hours work and under $20! I don't have 3 cylinders high idle but if I want that I'll just unplug three of the spark plugs.

    The part number for the solenoid is 1997461 and here's a list of cars it comes on. Hit your local pick & pull and you can pick one up for less than $10.

    1977 : Chevrolet : Corvette : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Monte Carlo : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Camaro : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Camaro LT : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Camaro Z28 : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Full Size Chevrolet : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Caprice Classic : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Caprice Estate : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Impala : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Impala Custom : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Nova/Chevy II : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Nova : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Nova Concours : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Nova Custom : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Chevelle/Malibu : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Malibu : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevrolet : Malibu CLassic : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Corvette : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Camaro : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Camaro LT : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Camaro Z28 : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Full Size Chevrolet : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Caprice : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Impala : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Nova/Chevy II : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Nova : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Nova Custom : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Chevelle/Malibu : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Malibu : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1978 : Chevrolet : Malibu CLassic : V8-350 5.7L OHV - notes: ROCHESTER EQPD - EXC CARB #17058232, 530
    1977 : Chevy Truck : Blazer Full Size : V8-350 5.7L - notes:
    1978 : Chevy Truck : Blazer Full Size : V8-350 5.7L - notes:
    1977 : Chevy Truck : C10, C20, C30, K10, K20, K30 Pickup : V8-350 5.7L - notes:
    1977 : Chevy Truck : C10 1/2 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1977 : Chevy Truck : C20 3/4 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1977 : Chevy Truck : C30 1 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1977 : Chevy Truck : K10 1/2 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1977 : Chevy Truck : K20 3/4 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1977 : Chevy Truck : K30 1 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1977 : Chevy Truck : Suburban : V8-350 5.7L - notes:
    1978 : Chevy Truck : C10, C20, C30, K10, K20, K30 Pickup : V8-350 5.7L - notes:

    1978 : Chevy Truck : C10 1/2 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1978 : Chevy Truck : C20 3/4 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1978 : Chevy Truck : C30 1 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1978 : Chevy Truck : K10 1/2 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1978 : Chevy Truck : K20 3/4 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1978 : Chevy Truck : K30 1 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1978 : Chevy Truck : Suburban : V8-350 5.7L - notes:
    1977 : Chevy Truck : El Camino : V8-350 5.7L - notes: EXC CARB #17058232, 530
    1978 : Chevy Truck : El Camino : V8-350 5.7L - notes: EXC CARB #17058232, 530
    1977 : Chevy Truck : G10, G20, G30 Vans : V8-350 5.7L - notes:
    1977 : Chevy Truck : G10 1/2 Ton Van : V8-350 5.7L - notes:
    1977 : Chevy Truck : G20 3/4 Ton Van : V8-350 5.7L - notes:
    1977 : Chevy Truck : G30 1 Ton Van : V8-350 5.7L - notes:
    1978 : Chevy Truck : G10, G20, G30 Vans : V8-350 5.7L - notes:
    1978 : Chevy Truck : G10 1/2 Ton Van : V8-350 5.7L - notes:
    1978 : Chevy Truck : G20 3/4 Ton Van : V8-350 5.7L - notes:
    1978 : Chevy Truck : G30 1 Ton Van : V8-350 5.7L - notes:
    1977 : GMC Truck : C+K 1500-3500 Pickup : V8-350 5.7L - notes:
    1977 : GMC Truck : C1500 1/2 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1977 : GMC Truck : C2500 3/4 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1977 : GMC Truck : C3500 1 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1977 : GMC Truck : K1500 1/2 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1977 : GMC Truck : K2500 3/4 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1977 : GMC Truck : K3500 1 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1977 : GMC Truck : Suburban : V8-350 5.7L - notes:
    1978 : GMC Truck : C+K 1500-3500 Pickup : V8-350 5.7L - notes:
    1978 : GMC Truck : C1500 1/2 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1978 : GMC Truck : C2500 3/4 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1978 : GMC Truck : C3500 1 Ton (2wd) Pickup : V8-350 5.7L - notes:
    1978 : GMC Truck : K1500 1/2 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1978 : GMC Truck : K2500 3/4 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1978 : GMC Truck : K3500 1 Ton (4wd) Pickup : V8-350 5.7L - notes:
    1978 : GMC Truck : Suburban : V8-350 5.7L - notes:
    1977 : GMC Truck : G1500-3500 Vans : V8-350 5.7L - notes:
    1977 : GMC Truck : G1500 1/2 Ton Van : V8-350 5.7L - notes:
    1977 : GMC Truck : G2500 3/4 Ton Van : V8-350 5.7L - notes:
    1977 : GMC Truck : G3500 1 Ton Van : V8-350 5.7L - notes:
    1978 : GMC Truck : G1500-3500 Vans : V8-350 5.7L - notes:
    1978 : GMC Truck : G1500 1/2 Ton Van : V8-350 5.7L - notes:
    1978 : GMC Truck : G2500 3/4 Ton Van : V8-350 5.7L - notes:
    1978 : GMC Truck : G3500 1 Ton Van : V8-350 5.7L - notes:
    1977 : GMC Truck : Jimmy/Yukon Full Size : V8-350 5.7L - notes:
    1978 : GMC Truck : Jimmy/Yukon Full Size : V8-350 5.7L - notes:
    1977 : GMC Truck : Sprint/Caballero : V8-350 5.7L - notes: EXC CARB #17058232, 530
    1978 : GMC Truck : Sprint/Caballero : V8-350 5.7L - notes: EXC CARB #17058232, 530
    1977 : Oldsmobile : Full Size Oldsmobile (Rwd) : V8-350 5.7L - notes: 4 BBL, CHEV ENG
    1977 : Oldsmobile : 98 Regency : V8-350 5.7L - notes: 4 BBL, CHEV ENG
    1977 : Oldsmobile : Custom Cruiser : V8-350 5.7L - notes: 4 BBL, CHEV ENG
    1977 : Oldsmobile : Delta 88 : V8-350 5.7L - notes: 4 BBL, CHEV ENG
    1977 : Oldsmobile : Delta 88 Royale : V8-350 5.7L - notes: 4 BBL, CHEV ENG
    1977 : Oldsmobile : Luxury 98 : V8-350 5.7L - notes: 4 BBL, CHEV ENG
    1977 : Oldsmobile : Omega : V8-350 5.7L - notes: CHEV ENG
    1977 : Oldsmobile : Omega Brougham : V8-350 5.7L - notes: CHEV ENG
    1977 : Oldsmobile : Omega F85 : V8-350 5.7L - notes: CHEV ENG   

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