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Allis Chalmers 7080 transmission questions
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keith wd View Drop Down
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Joined: 17 Nov 2015
Location: michigan
Points: 56 		Post Options Post Options   Thanks (0) Thanks(0)   Quote keith wd Quote  Post ReplyReply Direct Link To This Post Topic: Allis Chalmers 7080 transmission questions
    Posted: 15 Apr 2018 at 9:21pm
I am looking at a Allis 7080 and it ran and drive good supposedly 6 months ago but they had a problem with either water or some sort of coolant getting into the oil in the transmission and the drained it all out and guy got sick so the just pulled it out side does anyone know what it could be any info would help it is a floor shifter model

Edited by keith wd - 15 Apr 2018 at 9:22pm
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Orange Blood View Drop Down
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Joined: 29 Nov 2010
Location: ColoradoSprings
Points: 4053 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Orange Blood Quote  Post ReplyReply Direct Link To This Post Posted: 15 Apr 2018 at 9:54pm
likely a bad cooler in the lower radiator tank.

Question is, water or coolant?  Coolant is death on engine bearings, frankly I don't know about roller bearings.
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keith wd View Drop Down
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Points: 56 		Post Options Post Options   Thanks (0) Thanks(0)   Quote keith wd Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 4:22am
No it's not in the engine supposedly there is some type of liquid getting into the transmission
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MACK View Drop Down
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Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 6:56am
If it has two hydraulic lines in and out of bottom of radiator it has a transmission cooler that can leak coolent into transmission.   MACK
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Points: 4053 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Orange Blood Quote  Post ReplyReply Direct Link To This Post Posted: 16 Apr 2018 at 6:59am
Originally posted by keith wd keith wd wrote:

No it's not in the engine supposedly there is some type of liquid getting into the transmission

Sorry Keith, I wasn't trying to suggest anything was in the engine, just referencing how bad coolant is on engine bearings, but I didn't know how bad it affected roller bearings, typical of the transmission bearings.
Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
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