Maroon belly 7000 oil leak from inspection plate

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   Hello all, my 1st post here. Many this question has been answered, but I can't seem to find it.
I have a AC 7000 maroon belly that works great. The issue I'm having is that once the pto is engaged, trans/hydraulic oil comes out of the front seal on transmission. The diff oil is lost and over fills the transmission compartment. I can use the tractor all day and not have any leak at all until I engage the pto and then ALOT of oil comes out and stops shortly after I disengage the pto. I'm not afraid of working on the tractor but have not had one split before. All help is appreciated, thank you.

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RMA Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: Yesterday Location: Canada Points: 6	Post Options Post Reply Quote RMA Report Post Thanks(0) Quote Reply Topic: Maroon belly 7000 oil leak from inspection plate Posted: Yesterday at 12:59pm
	Hello all, my 1st post here. Many this question has been answered, but I can't seem to find it. I have a AC 7000 maroon belly that works great. The issue I'm having is that once the pto is engaged, trans/hydraulic oil comes out of the front seal on transmission. The diff oil is lost and over fills the transmission compartment. I can use the tractor all day and not have any leak at all until I engage the pto and then ALOT of oil comes out and stops shortly after I disengage the pto. I'm not afraid of working on the tractor but have not had one split before. All help is appreciated, thank you.

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DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 20546	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: Yesterday at 1:35pm
	When the PTO is engaged (hydraulic) oil comes out of the bellhousing, right behind the engine, correct ??? there is a metal plate that covers the bottom of the bellhousing. So, the hydraulic oil (sight glasses behind the batteries) goes DOWN when this leak occurs. I don't get why you are referring to the differential?? The oil level goes DOWN on that dipstick behind the cab??? and only when you are using the PTO ??? Somethings not right here.

RMA Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: Yesterday Location: Canada Points: 6	Post Options Post Reply Quote RMA Report Post Thanks(0) Quote Reply Posted: 5 hours 23 minutes ago at 8:10am
	When I engage the pto, oil goes from the differential compartment into the transmission which over fills and comes out the seal on the shaft that goes to the engine. I hope this makes sense.

RMA Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: Yesterday Location: Canada Points: 6	Post Options Post Reply Quote RMA Report Post Thanks(0) Quote Reply Posted: 5 hours 21 minutes ago at 8:12am
	The oil level on the dipstick behind the cab goes down, the site glasses behind the batteries goes up.

Alvin M Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 24 Jun 2018 Location: PA Points: 770	Post Options Post Reply Quote Alvin M Report Post Thanks(0) Quote Reply Posted: 5 hours 11 minutes ago at 8:22am
	The trans and diff are the same compartment use the same dip stick hyd uses the sight glass on the right front

RMA Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: Yesterday Location: Canada Points: 6	Post Options Post Reply Quote RMA Report Post Thanks(0) Quote Reply Posted: 5 hours 5 minutes ago at 8:28am
	Thanks for clarifying! So my hydraulic compartment is overfilling.

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 20546	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 3 hours 35 minutes ago at 9:58am
	Such a strange problem. On the model 7000 tractor, the 4-speed transmission is the rearmost part of the hydraulic sump, which is the torque housing. There is an oil seal on the main shaft/pinion shaft of the transmission, keeping the differential oil (and 540/1000 PTO gears) in their own little compartment. So, there is a large lip seal on the pinion shaft and double seals on the lower PTO shaft up in the front of the transmission housing. The differential/PTO gears oil level is checked and added at the dipstick behind the cab. You CANNOT check that oil level with the PTO running. Engine should be OFF and tractor sitting on the level. There is a reverse idler shaft that could SEEP oil from diff to trans but it wouldn't be a fast transfer of oil I wouldn't think. An oil leak in the bellhousing when the PTO runs would require a split of rolling the engine away from the torque housing. I don't know why it only leaks when the PTO is engaged, but the PTO clutch is in that general area. I would be da&& sure to remove that belly cover and make it leak to see where the oil is coming from. Edited by DrAllis - 3 hours 34 minutes ago at 9:59am

RMA Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: Yesterday Location: Canada Points: 6	Post Options Post Reply Quote RMA Report Post Thanks(0) Quote Reply Posted: 1 hour 46 minutes ago at 11:47am
	Thank you for the replies. I will try and get time this weekend to climb under and with the inspection plate removed, see exactly where it's coming from when the pto is engaged and give an update.

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 20546	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 1 hour 4 minutes ago at 12:29pm
	That doesn't concern me as much as WHY the differential area is going down on fluid as you say.