This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity. | ||||||
The Forum | Parts and Services | Unofficial Allis Store | Tractor Shows | Serial Numbers | History |
7040 hot under load |
Post Reply |
Author | |
Blustery Knoll Farm
Bronze Level Joined: 04 Dec 2017 Location: Northern IL Points: 117 |
Post Options
Thanks(0)
Posted: 24 Jun 2019 at 4:22pm |
I bought a 7040 last fall. Over the winter I changed the water pump, coolant, and fixed a few leaks in the oil cooler. It does great on light loads, or when the weather is cold. Above 60°, the temperature creeps up under heavy load.
Where should I be looking for the solution? Today I did a little data collection with an infrared thermometer. When the temp gauge read 200, I got 198° on the thermostat housing, and 170° on the water pump inlet from the lower radiator hose. How much temperature differential should I be seeing from top to bottom on the radiator? |
|
Sponsored Links | |
MACK
Orange Level Joined: 17 Nov 2009 Points: 7664 |
Post Options
Thanks(0)
|
15 to 20 degrees on radiator. Don't check temp. on hoses, they will lie to you. About the age to have radiator cleaned inside and out. MACK
|
|
Boss Man
Orange Level Joined: 03 Mar 2018 Location: Greenleaf, WI Points: 608 |
Post Options
Thanks(0)
|
I would start by cleaning the radiator fins out. Sounds like the heat isn't transferring like it should.
|
|
DSeries4
Orange Level Joined: 12 Sep 2009 Location: Ontario, Canada Points: 7204 |
Post Options
Thanks(0)
|
I would get the rad boiled out. Check the water pump for excessive play and make sure the belts are tight, make sure there is foam around the rad. Did you change the thermostats? Wouldn`t hurt to do that either.
|
|
'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '61 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
|
|
jiminnd
Orange Level Joined: 16 Sep 2009 Location: Rutland ND Points: 2207 |
Post Options
Thanks(0)
|
I think they have 2 thermostats, might be one bad, change them both.
|
|
1945 C, 1949 WF and WD, 1981 185, 1982 8030, unknown D14(nonrunner)
|
|
Blustery Knoll Farm
Bronze Level Joined: 04 Dec 2017 Location: Northern IL Points: 117 |
Post Options
Thanks(0)
|
I have not touched the thermostats.
Where is the foam supposed to be around the radiator? I don't see any. |
|
DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 19520 |
Post Options
Thanks(0)
|
Top.....sides.....lower front......sides of the air cleaner floor. when the hoods are in place the only air that can get to the radiator is thru the GRILLE screen.
|
|
Tbone95
Orange Level Access Joined: 31 Aug 2012 Location: Michigan Points: 11388 |
Post Options
Thanks(0)
|
Foam goes on both sides and across the top of the radiator. Anywhere you can get it, it seals off the hot air from just being sucked back around the radiator, or another way to think of it, forces the air that goes through the radiator to come from the front of the tractor through the grill. Makes a huge difference. Start there, it's cheap, easy, and needs to be done no matter if your radiator itself needs cleaned or replaced.
On the other hand, if you have the time, might as well take the rad out and get it cleaned inside, then put it together and put the foam in.
|
|
wekracer
Orange Level Joined: 13 Oct 2009 Location: Tebbetts, MO Points: 1587 |
Post Options
Thanks(0)
|
We had the radiator rodded on the 8050 about 5 years ago and put new foam in at that time. It made a huge difference. Good luck
|
|
Lonn
Orange Level Joined: 16 Sep 2009 Location: Назарово,Russia Points: 29773 |
Post Options
Thanks(0)
|
Have the radiator rodded and buy the foam kit. Clean every where the foam goes and glue in place with that 3M yellow stuff.
Edited by Lonn - 25 Jun 2019 at 8:21pm |
|
-- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... -
Wink I am a Russian Bot |
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |