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318 Industrial RPM issue

Casper6688

Casper6688

New member
Finally got to spend some time around the 442 . Engine starts , idles and otherwise works fine ... issue is , when under no load it will not RPM past 3100 . Just wondering if these motors have some type of rev limiter or governor ? In the coming weeks I will investigate further and start throwing some new parts at it . As for the age , not too sure on that , guessing around early 70's and no idea whats been done (or not done) to it . Any ideas , thoughts , suggestions will be appreciated .

MP
 
Nobody else answered so I'll take a crack at it. If/when people see this post, they may say I'm totally wrong but would then hopefully provide the correct answer.

Here's some info on the different types of governors. Not sure which you have.
www.foleyengines.com

Tech Tip 80: Governors on industrial engines - an overview

There are many options that could be used in an industrial engine. Tech Tip 80 explains the differences between the different engine governor types.
www.foleyengines.com www.foleyengines.com

This is a single barrel 318 carb from the 1970's. I DON'T KNOW, but it may be one of the bolts on the bottom of the carb. My "guess" is it may be the longer one.

1664291236331.png




I don't have a 318 but have a similar vintage Ford 300. Mine has a mechanical limiter/governor on the throttle linkage, near the carb. Move the throttle linkage and look for a bolt that's got a limit to a fixed piece of steel. This pic is not for your engine but what I'm talking about is the bolt on the top center of this picture.
1664290750853.png



There may be a rev limiter but I'd be surprised it would stop at 3100 RPMs, more likely 5500-6200. It'll probably look like this.
1664289360708.png
 
Thanks for the info , I should be back at the machine in a day or so and will definitely look into those suggestions . Appreciate the reply

MP
 
Should be a Governor plate under the 2 barrel on the 318 Industrial. The internals ( spring ) are behind a tin cover on the side of the plate. 2 slotted screws hold the plate on, be gentle or they will twist off .
J5 Bombardier
 
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I think you folks are on the right track......IT HAS BEEN MANY DECADES SINCE I saw on of these....but IIRC THEY HAD GOVERNORS.......
 
The Tuckers I've bought (that still had governors installed) had a King-Seeley velocity governor under a Carter BBD 2 BBL carburetor.

Why does one need a governor on a snowcat? Hmmm....

My theory is this: These are Chrysler Industrial engines and Chrysler didn't know what application the engine would be used for. In some cases the engine could be running unattended. If the load went away, the engine could over-rev and destroy itself. So they installed velocity governors to prevent catastrophic damage in that situation.

I suspect the engines came with a warranty, and removing the governor would void the warranty. Tucker understandably didn't want to take the governors off and void the warranty before the machine was even delivered, so they left them installed.

That warranty has long since expired, so if you want to remove it, why not?
 
I cleaned mine up, and adjusted it to what I want. There would have been some clearance issues, that would have to be sorted out if removed, if I remember right. I wasn't sure if I was going to keep the gasser at the time , but in the long run it's been good. J5 Bombardier
 
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