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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
Show Parts for Model:

1850 new temp gauge not working good sender

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mlshvb

08-30-2010 16:22:14
99.40.239.131



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I have an oliver 1850D that I'm trying to get the temp gauge to work. Last year I bought an aftermarket gauge from one of the tractor sites and it didn't read right, it would only come slightly off the lower peg when you turn on the key, but never get out of the cool region. I put an automotive gauge on and it is the same deal, always cool. I took the gauge off my Dad's 1850, put it on mine and it read fine, so I know that the sending unit is fine. What I'm thinking is that Oliver and automotive style sending units have different resistance so you have to the corresponding gauge for them to register correctly. I wouldn't mind having an automotive gauge in there so I can actually see what temps are since I have it turboed, but what do you guys do in this scenario, and who do you get your gauges from? Am I on the right track?

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mlshvb

09-05-2010 19:04:28
99.40.239.131



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 Re: 1850 new temp gauge not working good sender in reply to mlshvb, 08-30-2010 16:22:14  
The Agco gauge finally came in and it didn't match the chrome styling and face of my other Oliver gauges. I already had an automotive gauge, so I bought an automotive sending unit for $10 and I was good to go. No my temp is running 205 at 2400 rpms and was climbing a little, so I slowed it down to about 1800 rpm and it held at 200. My radiator is clean and I'm looking for more suggestions to keep this thing cooler before I go on this weekends charity tractor cruise. Anyone ever add extra oil reservoirs or coolers after the turbo? I would think the oil coming back from the turbo is adding substantial heat and I have it dumping back into the side of the front tappet cover. I'm thinking of mounting an extra turbo return oil cooler in front of the existing oil cooler in front of the radiator. What do you think?

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Steve Merritt

08-31-2010 19:05:09
75.135.213.39



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 Re: 1850 new temp gauge not working good sender in reply to mlshvb, 08-30-2010 16:22:14  
If you measure the resistance vs. temperature of the AGCO sending unit and compare it to the to the values stated in the shop manual (770/880), you will see that this sending unit will always read cool. I've done a lot of experimenting with sending units and have found a sending unit from NAPA that is accurate when used with temperature gages on three digit series, 00 and 50 series tractors. NAPA part number is TS6164 and it costs around $15.

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dboll

08-31-2010 18:38:20
64.61.211.222



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 Re: 1850 new temp gauge not working good sender in reply to mlshvb, 08-30-2010 16:22:14  
if turbo'd I would worry about the egt as much or more.



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mlshvb

08-31-2010 18:21:46
99.40.239.131



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 Re: 1850 new temp gauge not working good sender in reply to mlshvb, 08-30-2010 16:22:14  
I ordered a temp gauge from Agco today. I can't believe it was $60, but I guess you need what you need. Thanks for the info everyone.



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Fern(Mi)

08-30-2010 18:22:46
97.84.219.170



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 Re: 1850 new temp gauge not working good sender in reply to mlshvb, 08-30-2010 16:22:14  
We purchase either part needed from our Oliver (AGCO) dealer. Always worked fine.

Fernan



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Kruse

08-30-2010 17:30:08
24.246.220.141



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 Re: 1850 new temp gauge not working good sender in reply to mlshvb, 08-30-2010 16:22:14  
There are gauges that are different from each other. I'm pretty sure (off the top of my head) that some gauges start off at zero ohms and others start off at 15 ohms.
As posted, they need to match.



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Wisconsin Cowman

08-30-2010 17:26:24
173.53.244.237



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 Re: 1850 new temp gauge not working good sender in reply to mlshvb, 08-30-2010 16:22:14  
Sending unit need to match gauge.



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