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No heat in 986


 
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redrandy
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Joined: 28 Jan 2012
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PostPosted: Wed Nov 22, 2017 2:14 pm    Post subject: No heat in 986 Reply to specific post Reply with quote

I can't get heat into cab . Both valves on engine are fully open and checked to make sure they are not plugged. I pulled cab roof and removed heater control valve it operates as it should and isn't plugged same goes for heater core. I filled heater system with garden hose to push out any air that didn't help either. Any ideas?
Randy
 
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Rodney51Cub
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Joined: 12 Jun 2015
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PostPosted: Wed Nov 22, 2017 8:37 pm    Post subject: Re: No heat in 986 Reply to specific post Reply with quote

Is your temp gauge showing the tractor is reaching operating temperature. If not the thermostat may be stuck open. Also check fan belt tension.

Rodney Cool
 
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fixerupper
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Joined: 12 Oct 2003
Posts: 14665
Location: Albert City Iowa

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PostPosted: Thu Nov 23, 2017 7:11 am    Post subject: Re: No heat in 986 Reply to specific post Reply with quote

Splice a section of clear hose into the heater hose that flows up to the heater core. No need to cut the original hose, just splice in a two foot or shorter section of the clear hose to the heater hose and let it hang there. Start the engine and see what goes through the hose. If you see a lot of air you might have a blown head gasket. I had the same problem with a Deere I bought used from a dealer. There was no heat so I took it back to the dealer. The mechanic spliced in the clear hose and saw mostly air going through the hose. The head gasket was blown.
 
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redrandy
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PostPosted: Thu Nov 23, 2017 10:55 am    Post subject: Re: No heat in 986 Reply to specific post Reply with quote

I will try that next
Thanks
 
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redrandy
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PostPosted: Thu Nov 23, 2017 10:57 am    Post subject: Re: No heat in 986 Reply to specific post Reply with quote

It comes up to temp as it should and belts are tight
 
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