Model 2816 hydrolic fluid drained out

[dlginla]

Model 2816: I bought a 2816 a few months ago with only 74 hours but weathered, runs great! Yesterday while moving some firewood, all of a sudden hydrolic fluid was draining from gear box. After Inspection, I found that a plastic screw in plug was covered with silicone and the silicone came loose and hydrolic fluid came out quite rapidly.

Does anybody know what is supposed to go in those holes? they are on the front left side of the gear box. One picture is where I took off the silicone.

 

[RNeumann]

Not sure but it obviously isn’t right. Can you tell if it’s threaded or just a press fit plug? If the tractor is weathered some of those press fit plugs are known to be made of pot metal and will rust out quite easily. You would be able to pop the old ones out and find a replacement at an auto parts store.

 

[dlginla]

Yes it is a plastic plug with rubber side. It must have shrunk over the years, so someone covered it in silicone. What is the best way to handle this? Is it a safety release?
Should I put a new one in and hope I don't lose all my fluid again?

 

[dlginla]

Ok, I think I fixed it with a Baitwell plug!

 

[MatHaas]

gear box. so it's gear drive, not hydro static trans?
just trying to clarify and get a better idea of where you're saying these two plugs are located exactly.
a zoomed out picture would also be helpful to get a better ideal of where you're working.
easiest way to help you.
slick thinking with the livewell plug. haha

 

[MatHaas]

just did a quick search and maybe i found what you're looking for.
just to start, i will make a rhetorical question, you are aware there is a parts catalog on the the mahindra website under parts for almost every tractor they've manufactured with elaborate diagrams labeling the parts and their assembly in detail?
haha.
anyway, here's what i found on mahindra's site, then go to parts, then go to parts catalog, then from there
FIGURE SEARCH
=> Browse by Series
=> 16 Series
=> 2816 Gear
=> Chassis
=> T/M Control (3/3)(2816GTMC3-1-08)


look at the part labeled number 13. (Mahindra PN 08340016050; CAP, Seal Dia. 16)
seems to be what you're looking for based of your location description and that zoomed in pic. haha.
View attachment Illustration_08-04-2018.pdf

T/M control cover is what they go in to; part labeled number 1
transmission control cover. the gear selector/shifter should go in to the top back of that cover with the holes where the plug is missing, correct?

 

[dlginla]

just did a quick search and maybe i found what you're looking for.
just to start, i will make a rhetorical question, you are aware there is a parts catalog on the the mahindra website under parts for almost every tractor they've manufactured with elaborate diagrams labeling the parts and their assembly in detail?
haha.
anyway, here's what i found on mahindra's site, then go to parts, then go to parts catalog, then from there
FIGURE SEARCH
=> Browse by Series
=> 16 Series
=> 2816 Gear
=> Chassis
=> T/M Control (3/3)(2816GTMC3-1-08)


look at the part labeled number 13. (Mahindra PN 08340016050; CAP, Seal Dia. 16)
seems to be what you're looking for based of your location description and that zoomed in pic. haha.
View attachment 547835

T/M control cover is what they go in to; part labeled number 1
transmission control cover. the gear selector/shifter should go in to the top back of that cover with the holes where the plug is missing, correct?

MatHass, you are correct, I did find the micorfiche for Mahindra, I couldn't find exactly what I was looking for, but you Found it!
Thanks for the location of the parts catalog!
Both of those plugs had silicone smeared over them so they must have come out before. If the other one comes out I will do the same, since I bought a 2 pack for $3.99.
Thanks again! Just learning this Mahindra, I like it so far, only been about 3 weeks that I had it. Came from a Jinma.

By the way, do you know about those plugs? Just shove them in?

 

[MatHaas]

MatHass, you are correct, I did find the micorfiche for Mahindra, I couldn't find exactly what I was looking for, but you Found it!
Thanks for the location of the parts catalog!
Both of those plugs had silicone smeared over them so they must have come out before. If the other one comes out I will do the same, since I bought a 2 pack for $3.99.
Thanks again! Just learning this Mahindra, I like it so far, only been about 3 weeks that I had it. Came from a Jinma.

By the way, do you know about those plugs? Just shove them in?
View attachment 547849

I personally don't have any experience with them unfortunately.
But now that we've identified exactly what you're looking at, you may be able to stop by a dealership and ask a tech what the do and why they're there.

To me, it looks like you would just press them in.
But i'm going to go out on a limb and guess that either the tolerances of the holes in the cover are a little high, or that someone popped them out before for some unknown reason, and that's when they started to leak, so they smeared silicone all over it.

Just a guess though.
But there are breather ports on the transmission, as well as the shifter assembly being right there in that cover, which isn't an air tight seal (to my knowledge), so personally i don't think you built up any abnormal pressure to pop them out. I think they just failed. Like i said, someone may have taken them out before and doing so ruined the seal or hole, but they put them back in and smeared silicone on them.

With that being said, any way you can plug them up should be fine then, as long as you're not entering the cover too far and interfering with the shifter assembly.
Wonder what those plugs cost from the dealer. Or is that where your 2 pack for $3.99 came from?
just gotta make sure the holes in the cover seem like they're still good too and haven't been tampered with or distorted.
i'd try to find the best way to fix it properly and permanently. if you need to smear silicone all over it to get it seal up, chances are, one day they'll pop out again and there goes all of your hydro fluid again.

 

[RNeumann]

Measure the old one and shop- I’d use brass.

Melling MPE-100BR Freeze Plug Kit Amazon.com: Melling MPE-1BR Freeze Plug Kit: Automotive

 

[dlginla]

Talked with mechanic, he thinks the vent tube might be clogged and that is why the pressure may have pushed it out. I couldn't use the bait tank plugs (above pictures), it was to long, when I put it in reverse, it pushed it out. So I have to find the vent tube, make sure it is clear, then put the original plug back in and test it.
Help on finding the vent tube would help!