removing the governor?

[blizzardwarrior7]

Has anyone done this before, how hard is it to do?

 

[brianrbull]

Umm...... What Governor You Talking About?..... Which Engine? ....... and I doubt it ...... and very.......

 

[nattieleather]

The governor is part of the carb if I remember correctly. It's been about 13 years since I played with a GMC so I'm foggy here, but I seem to think it was a diaphram on the side that limits the throtle plates. I bleave that you can just remove the vacume line to disable it. I wouldn't recomend disabling it though. It's there to protect the engine from over reving.

If your talking about removing it for service you just need to remove the carb and then you can disasemble it eaiser off the truck than on.

 

[Barrman]

Which vehicle are you asking about. GMC, REO? The REO governor is set at 3400 rpm. Why would you want to turn a straight 6 faster than that?

 

[blizzardwarrior7]

Oops, sorry its a 54 gmc 302. What Id really like to do I guess is just add a conventional carb rather than the governed one, hasn't anyone done that before? I was just curious how difficult it would be just to remove the governor and how to go about doing it...Not for service.

On top of this, for whatever reason after removing the carb and intake/exhaust manifolds the other day and reinstalling them the truck wont start... I pump the gas pedal a few times, pull the starter and it will start and run for about 1 second and than die, the more times I pump the pedal the longer it runs (2 or 3 seconds), Im thinking maybe has to do with the floats in the carb?

 

[wreckerman893]

At one time the 302 straight six was a popular hot rod engine....I think there are still high performance parts for it.

That being said, it's all fun and games until the rod comes out of the side of the block.

 

[blizzardwarrior7]

I guess I will search around for parts for it...I dont mind having to "pay to play". I just dont know where to begin. It seems everytime I do something, something breaks. Fixed the radiator, brakes go out. Fixed the exhaust leak, carburetor isn't working correctly. I just need the truck to start up so I can move it in my driveway to get my other truck out. Could the problem be related to the floats in the carb? Is there something I should be checking?

 

[73m819]

This is the converted dump that had the wrong fifth wheel, ect, ect, ect.,and the long thread on "should I buy" that was such a great deal becsuse it was RED and been GONE THROUGH guess once the paint got changed to OD, the deal does not look so great now

 

[hendersond]

I just saw a truck with a 60s-70s-ish rochester dualjet 2 barrel from a small block chevy on it. The guy claimed it had the same bolt pattern. I will try to check it out in the next day or two. They are easy to rebuild and maintain.

As far as the original carb goes, I just rebuilt mine and it was difficult to get close to perfect. I'm sure I've done more than a 100 rebuilds for people. This one required some thought. Any internal vacuum leak and it will not pull fuel over to the venturi and it only runs for a second or at full choke. The gov is part of the internal vacuum curcuit. The funny looking cover is a real source of internal vacuum leaks as well. I'd go 100% stock or change the carb to something else.
Remember the thing can function underwater, it is a lot different inside!

I posted some of my "carb misery" on my thread First '52 XM211 a month ago.

Nice truck by the way. Keep us posted on your progress!

 

[JasonS]

I used a common large bolt pattern Holley economaster carb on my Reo with very good results. I used a Holley to Rochester adapter.

Years ago, I used a Holley 4412 500 CFM carb on a 302 GMC in my pickup; again using the adapter. I used a die grinder to port match the maniflod to the carb adapter/carb size. Worked well. I got ~20mpg with that setup. The economaster is still a much better carb, though, than either the 4412 or the 885FFG.

 

[hendersond]

If you want to part with the original, I may be interested depending on price???

 

[JasonS]

The originals went in a box of parts with two 331 engines that I sold awhile ago.

 

[blizzardwarrior7]

73m819: Whats your problem? Hmm? All you do is troll it seems. Just because the brakes have an issue and I fiddled withe Carb and now it won't run the truck wasn't worth it? The truck just logged 1400 miles and is 60 years old. Its going to have problems. Why do you feel the need to belittle me and my truck? You have problems.


Henderson if you could get another look and get back to me that would be great.I took the Carb off again and looked everything over, the gasket on the cover piece is non existent but the truck drove 1400 miles with it like that, put back together now the truck will run for about 5 seconds or more if I tap the gas a little bi. Where did you find leaks on yours?

Jason, I was under the impression that the gm302 Carb is a holley do i still need an adaptor?

 

[hendersond]

My leak was somewhere between the gasket, shim plate, and gasket. Turned out to be a real stinker. I believe there may be different thickness shims to compensate, but I did not have them. Do you have a kit or are you re-using old? You need new gaskets, period. make sure the gashets are imprinted by both surfaces. This will help you find your leak.

I need to find a carb manual for that truck.

Also, if you don't have the gasket for the cover/air horn you are sucking unfiltered air. RTV is not the right answer, but it is better than re-ringing the engine. The silicone there is a short term help.

 

[butch atkins]

its called TM9-1826D Ordnance Maintenece,CARBURETORS AND GOVERNERS (HOLLEY),TM 9-8024 Operation and Maintenance 2 1/2 Ton 6x6 Trucks M135 M211,etc.also the governor controls the automatic shifting of the stock Hydramatic tranny,i have the carb manual and will answer all questions to the best of my ability,my truck carb has been rebuilt twice since 1992,TM has 166 pgs and wil tell all you want to know about the stock carbs/govs on these trucks that use them. Good luck to all on your projects

 

[hendersond]

Yes, Butch you are right about the shifting. (I forgot about that)

 

[blizzardwarrior7]

Is there somewhere to get new gaskets? Liquid gasket wont work? Maybe I could just get a sheet of gasket material and cut them out myself using the old ones as templates? Since I have a reb shifter, perhaps the shift linkage from governor to tranny is MIA on my truck. So seems like my best bet is to start with replacing the gaskets than huh?

 

[rickf]

I am a 40+ year master mechanic and carburetors and electric were my specialties. BUT, Since you invited me to NOT participate in any of your threads I will exercise that option. 73M819, Yup, same truck. You see my man, when you dump on people they do not forget.
Sorry mod's, he had it coming!

 

[hendersond]

I pulled 2 kits off ebay. I see the same person has another one listed every few weeks.

 

[JasonS]

Jason, I was under the impression that the gm302 Carb is a holley do i still need an adaptor?

There is a small (your carb) and a large size (2300 series). The adapter mates the two. I do not know how the carb relates to shifting.