Originally Posted by skid_pimp

Out of curiosity are you referring to folks that had the first primary vents that came out? Because I do remember reading how those were hit and a few miss. But from what I understand this new vent that they are installing is not the same design as the original one they were using, so it may garner different results.

Originally Posted by bigcraig

While the design is different, the purpose is the same.
However, if you look at all the pics of the vent kits that were installed by some of the roving regional master tech reps, the location of where the kits are installed on the primary is different.

I have no clue if that makes a difference or not.

Originally Posted by hattitude

I've read a couple people post it hasn't worked for them....... so it doesn't appear to be 100%.... viable fix for most, but still not addressing the actual problem..

IMHO the vent is an example of a band-aide fix.... None of the shovel heads, EVOs, or Twin Cams needed to add an additional vent (the primary already vents to the trans via the main shaft and then to the atmosphere through the trans vent) to avoid fluid transfer. Additionally it only seems to happen to the M8 hydraulic clutch models.... so the problem has to be in the changes made in the clutch actuator section of the trans.... The MoCo is choosing to install a vent, when someone complains, instead of doing a redesign to fix the real problem.... I wonder what happens when someone starts to transfer fluid after the warranty is done... Oh yeah, they'll have the vent kit available to purchase....

Yeah, I'm tilting at windmills.... but it just doesn't sit right with me.....

Originally Posted by Crabchuck

^^^ Um, wouldn't the clutch cable be a transmission vent, and not a primary vent?

Originally Posted by BrandonSmith

Nope, the clutch is in the primary. The cable goes straight into the primary cover.

Originally Posted by Bumpandrun

....the one with a cable don’t transfer....that’s because they have a big long vent up to handle bars. These farm tractors have had a long line of f ups from day one. If you wanted perfect.....you didn’t do your homework.

Originally Posted by lp

Nope. The cable goes in the same place as the hydraulic version - in the trans side cover.



The cable actuated clutch does not transfer because the trans side plate is different than the hydraulic cover - in comparison the space between the cover and the trans main shaft mouth is miles away, and it has a built in oil deflector.
The cable going to the handlebars and "acting like a vent" has nothing to do with it. The trans already has a vent. More "vent" on the trans side does nothing to stop the transfer...primary side maybe.

Furthermore, you keep saying these are farm tractors. They couldn't be further from a farm tractor - diesel for one.
Not an easy engine to work on and completely different than a 2 cylinder single pin, gas, 45 degree v-twin. So I don't get your reference.

Originally Posted by Heatwave

I thought the first HD vent kit was a "Transmission" vent and the new one is now venting the "Primary". Is that incorrect?

Originally Posted by $tonecold

Probably referring to the old John Deere two cylinder V-Twin motor, although it was a 90 degree. Had a distinctive sound. Not quite like a Harley.