Transmission venting

David G · Jan 19, 2015

I cannot find where my MH44 and Farmall H transmissions vent. Is this correct, or common? It seems to me you would want a vent to prevent excessive pressure on seals.

gab · Jan 19, 2015

They probably vent around the shifter.

Bob · Jan 19, 2015

Yep, and ADMIT rainwater at the same points!

big fred · Jan 19, 2015

An important design feature. Makes up for transmission oil leaking past the gaskets and seals...

quefan · Jan 19, 2015

I believe the MH44 vent is inside the the steering wheel support post. Small stub tube screwed into case.

pete 23 · Jan 19, 2015

The H does vent through the shift lever. There is a groove in the funnel shaped shield. During the upgrading of the 560's etc, that shield was changed to omit the groove and add a bevel to the top for an o-ring to seal against shift lever. Then a small hole was drilled into the cast so shield would not close hole but it would be shielded from moisture coming in around lever.

Transmission venting

David G

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gab

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Bob

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big fred

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quefan

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pete 23

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