I have a 2018 4550 that blew a head gasket in 2020. Before the head gasket blew the temp never moved into the green. Since replacing the gasket the tractor runs up in the green a lot. When I bought the tractor the dealer told me the tractor was designed to run in the desert and the needle should never move. What is the operating temp for your 4540 or 4550?
4550 running temperature
- Thread starter 4550guy
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gardner175
New member
I have a 4550 made in 2013. When I purchased it I had the same issue with the temp gauge. Turns out Mahindra came up with a fix. They have a flow restrictor for the radiator coolant. (I looked for the thread that made me aware of this fix but could not find it.) Mine was installed by the dealer. I live in Michigan. I do not use my tractor in the winter. My temp gauge now reaches the mid green range every time I run it for a half hour or more.
svendawg
Member
Here is a link related to your post
www.tractorbynet.com
Mahindra 4540/4550 EGR Vent Adaptor installation (running cold fix)
Hi, all. I recently completed this repair/modification on my 2019 4540 with 230 hrs. I thought I'd share some info on the cause/effects of this common problem, as well as the fix. If you're like me and live in a cooler climate and own a Mahindra 4540 or 4550 that has not had this part...
www.tractorbynet.com
Woodstock Walt
Silver Member
Here is a link related to your post
Mahindra 4540/4550 EGR Vent Adaptor installation (running cold fix)
Hi, all. I recently completed this repair/modification on my 2019 4540 with 230 hrs. I thought I'd share some info on the cause/effects of this common problem, as well as the fix. If you're like me and live in a cooler climate and own a Mahindra 4540 or 4550 that has not had this part...
Glad you shared that! I missed this thread, otherwise I would've shared it sooner.
Yup, 10 minute job to install that flow restrictor and after 20 hours of use I can confirm that it's by far the best modification I've ever done to my tractor.
My temp needle never moved off of the lowest peg and consequently the engine always ran rough, noisily, and inefficiently. Extra cold winter days were just brutal. It seemed to me like a brand new tractor should perform better than that. Turns out it's supposed to.
The cooling system on these 4540's and 50's is built it keep the engine cool while plowing a field in 100* ambient air temps. The high flow EGR bypass line, fixed mechanical fan, and proportionally oversized radiator is way overkill for somebody like myself who uses it more like a chore tractor in a cooler climate.
After installing the vent line restrictor and covering 90% of the radiator with cardboard, 10 minutes at a high idle and the water temp starts climbing into the proper operating range. After 10 minutes of work it's fully up to operating temp. Runs quieter, smoother, and more efficiently with much more power. Night and day difference.
In my opinion, every 4540/50 north of the Mason/Dixon should have this EGR vent restrictor installed during the final assembly at the dealership.
captainbars
New member
- Joined
- Mar 16, 2022
- Messages
- 21
- Tractor
- Branson 5220R
Hi,Here is a link related to your post
Mahindra 4540/4550 EGR Vent Adaptor installation (running cold fix)
Hi, all. I recently completed this repair/modification on my 2019 4540 with 230 hrs. I thought I'd share some info on the cause/effects of this common problem, as well as the fix. If you're like me and live in a cooler climate and own a Mahindra 4540 or 4550 that has not had this part...
I'm your neughbor in Mena, AR with a 4540 with same problem. But it just blew a head gasket I think. Blew white smoke and when I shut it off, now when I try to start it will not turn over like it's got water in the cylinder and locked up. Anyone have experience taking the head off?
captainbars
New member
- Joined
- Mar 16, 2022
- Messages
- 21
- Tractor
- Branson 5220R
Right now it's like others in this thread, barely moves off cold. Have to replace head gasket now, I think. Engine's stuck.
