The Stovebolt Site Forums The Shop Area Engine Shop Dash Mounted "throttle"

Hey Bolters,

Now that I have Miss Lucille(1966 C60) running down the road, I have another opportunity I need your help with.

The truck has a twin hoist dump bed that runs off a pto driven pump. I will be mounting a winch on the bed to use for dragging logs up onto it. I need to be outside the cab to hook up and run the winch while at the same time raising and lowering the bed.

I need to be able to increase and maintain an engine speed above idle to get the pump running fast enough to raise and lower the bed. This can be accomplished with a dash mounted throttle cable that can be pulled out to set engine speed before leaving the cab. I can run the pump with remote controls mounted on the side of the frame. I have an F700 with such a throttle but it is a 360 4bbl and the linkage for the manual throttle is very complicated. I have not been able to figure out the same type of linkage on a 292 six with a Rochester B transversly mounted on the manifold.

Does anyone have any suggestions short of leaning a brick against the accelerator. I would like to duplicate the F700 linkage. I thought some of the older Chevy trucks had a manual throttle on the dash and I would be interested in how they work.

Can anyone help me??

BigMac
Thanks Dan

On our fire apparatus we use what is called a vernier throttle. It can be mounted anywhere, ours are on the pump panel and used to control engine rpm's, hence the water pressure at the pump outlet. They can be found on wood chippers and other applications.. Yours could be mounted on the frame along with your other controls.

The cable is moved by rotating a knob in a threaded housing so the cable is capable of pulling a lot of pressure. We usually weld an eye to a piece of the existing throttle linkage and run the end of the vernier cable through the eye with a stop.

Hi BigMac , try going to a wrecking yard and looking for an old (80s) diesel LandCruiser .
Mine had a hand throttle that was cable operated , very easy to hook up and use on other applications .

The way most people hook up a hand throttle is to use a short length of chain between the end of the throttle cable and the throttle linkage on the carb. The chain has to be long enough to allow the throttle to close when the knob is pushed in. Pull the knob out, and the chain tightens up, opening the throttle, but if you push down on the accelerator it gives slack in the chain. Clear as mud?

The way tha AD throttle hooks up is the hand throttle cable replaces a clevis pin in the accelerator linkage rod, so that the rod is free to slide on the hand throttle cable until it is tightened up. Someone else will have a pic, I don't.