thermostat 40C

General help and support for your Lindeman through 2010 John Deere crawler
Post Reply
User avatar
gregjo1948
350 crawler
350 crawler
Posts: 1000
Joined: Mon Aug 30, 2010 5:58 am
Location: Newark Valley,NY,USA

thermostat 40C

Post by gregjo1948 » Sun Sep 27, 2020 3:51 am

I played with my 40C a little and it doesn't warm up much. I installed a new temp gauge but I don't know where the thermostat is located. thanks, gregjo1948
JD 350B diesel 6way blade, Case 580B Loader/backhoe, Farmall 504 high crop w/ flail boom mower, International 404 , International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller, Allis Chalmers D17, 1620 Ford

User avatar
Stan Disbrow
350 crawler
350 crawler
Posts: 2894
Joined: Fri Jul 15, 2005 3:13 pm
Location: Raleigh, NC

Re: thermostat 40C

Post by Stan Disbrow » Sun Sep 27, 2020 4:27 am

Hi,

No thermostat. Thermosiphon system. No water pump, either. ;)

Stan
There's No Such Thing As A Cheap Crawler!

Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

User avatar
gregjo1948
350 crawler
350 crawler
Posts: 1000
Joined: Mon Aug 30, 2010 5:58 am
Location: Newark Valley,NY,USA

Re: thermostat 40C

Post by gregjo1948 » Sun Sep 27, 2020 5:09 am

Thanks for your reply Stan. So until I work the devil out of this little guy, I can't expect to see any temp rise on my gauge?
JD 350B diesel 6way blade, Case 580B Loader/backhoe, Farmall 504 high crop w/ flail boom mower, International 404 , International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller, Allis Chalmers D17, 1620 Ford

User avatar
Stan Disbrow
350 crawler
350 crawler
Posts: 2894
Joined: Fri Jul 15, 2005 3:13 pm
Location: Raleigh, NC

Re: thermostat 40C

Post by Stan Disbrow » Mon Sep 28, 2020 4:43 am

Hi,

It will run cool until it doesn't. Make sure you have a proper radiator cap with a vent hole so the expanding coolant has someplace to come out when it gets hot. When it cools, add coolant. They don't work if they aren't full.

The M and the 40 are like this. With the advent of 20% greater power they got a water pump, thermostat, and a pressurized system. As in when the 40 turned into the 420. So, you have a fan, but there is no water pump behind it. Just a bracket.

If they were an all-fuel, they had shutters in front of the radiator. Not if they were Gas only, though. The shutters were to heat it up for the distillate or kerosene. If you don't have the second fuel tank for starting Gas, it is a Gas-only machine.

Stan
There's No Such Thing As A Cheap Crawler!

Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

Post Reply

Who is online

Users browsing this forum: No registered users and 58 guests