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1964 3020 Governor Tube

L

LyleT

New User
I am putting the engine together on my 'new' 1964 3020 Gas Powershift. This is new to me, I got it and the sleeve seals were leaking antifreeze so I am finishing up on a seal replacement.

It is almost together, and as I am cleaning and assembling I notice the tube between the intake manifold and the governor was brazed shut. It looks like the small tube broke off of the intake manifold / intake tube and fixed, but in the process they brazed the small governor tube shut inside the intake.

I put a hole in the brazing with a small drill, but want to check with the 'experts' before I start it up, or undo something that was done under a service bulletin or to fix a known issue.

Does anyone know why this would be brazed shut, or should I keep it open? I have not seen anything here that references closing this tube.

Thanks for your help.

-Lyle
 
The crankcase ventilator has been disabled.

I wonder if they removed the impeller, as well (from the drive end of the governor)?

At some point it was determined they were not needed.

They pulled air from the intake tube, (after the air filter) and pushed crankcase gasses out the vent tube (the opposite of how most PCV systems work).

NOT sure why they were eliminated in later tractors, and often disabled in older units, but it PROBABLY has to do with the advent of better/modern detergent oils that help eliminate sludge buildup.
 
The reason is they sometimes do bad things,like pumping the intake full of engine oil.I started a 3010 from the ground and was right beside the starter when ours did that and it was quite the experience when the head gasket blew and oil went everywhere.The gasket was blown out from under the head.
 
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