Unstyled B coolant hose

[treeman53]

How do you get the new coolant hose onto the coolant pipe? I'm replacing all the rubber hoses, and I double checked part number. It seems impossible to fit the new hose onto the pipe. Is there a secret? Soak in boiling water?
Also, there doesn't appear to be a part number for the short hose from bottom radiator outlet to the lower pipe. Was tis one piece originally?

 

[matthies]

If your new hose has wire in it, good luck. Best to get hose from a truck repair shop, call stick/straight hose, without the wire. The parts book just lists the hose and figure out that it takes two pieces. Some of those hoses are an odd size and the hose you bought maybe the closest they had. Think I had to go through Steiner's for some of that hose.

 

[dan_41jdh]

The Deere Parts Catalog for the unstyled “B” shows two coolant hoses – B406R for the upper, and B402R.

As matthies stated in his post above, those hoses are commonly known as “stick hoses”, also called “Straight Coolant Hoses” and are widely available through most automotive parts stores, typically furnished in 3 ft pieces. NAPA’s part number is NBH 616 and O’Reilly’s is 24038. Many parts stores will cut and sell segments. B402R is 4” long and B406R is 6” long, according to a chart I have. Both hoses are 2-3/8” ID and 2-3/4” OD. Incidentally, the 2-3/8” dimension is exactly the OD of 2” pipe and will fit the original coolant pipes perfectly.

 

[treeman53]

Thanks guys! The stuff I got was said to replace 406 and 402, but it is a little less than 2 3/8 ID. I will check with O'Reilly's.

 

[Fixingfarmer]

Get plenty of length if you have a long frame when you find it my 38 I believe they are longer than the 36.

The pipe fittings in the head and lower radiator tank are 2 inch id on the b I had to order it in as well. Debated putting 2 stainless 2 inch hose barbs in the last one and just using sprayer hose so it would be 2 inch but I figured even just that 3/8 inch bit of necking down was too much since when it’s hot it’s all the little thermosiphon one can do to stay cool and I just sat it out waiting for the mail.

 

[stoughtonfarmboy]

I replaced the lower pipe on our 1937 unstyled B with a section of tailpipe and two 6" pieces of straight radiator hose. I had to cut off the flange end of the piece of tailpipe. The previous owner had made a similar fix prior to me getting the tractor. I used some tire lube to make moving the radiator hose on the pipe easier.

Ken

 

[treeman53]

I replaced the lower pipe on our 1937 unstyled B with a section of tailpipe and two 6" pieces of straight radiator hose. I had to cut off the flange end of the piece of tailpipe. The previous owner had made a similar fix prior to me getting the tractor. I used some tire lube to make moving the radiator hose on the pipe easier.

Ken

What did you use for lube?

 

[stoughtonfarmboy]

What did you use for lube?

I used tire mounting lube that I got at Tractor Supply. I ride dirt bikes and also change the occasional tire for vehicles, tractors, etc.

Ken

 

[Fixingfarmer]

Murphy’s is one brand

Dawn dish soap watered down in a spray bottle

There is an assembly lube comes in a white tube at most auto parts stores permatex might be the brand blue cap orange branding and letters iirc for o rings works as well for hoses I don’t remember a product exact name but there’s a couple more to try

Lately on the worst things I’ve been using up the bottle of John Deere’s liner o ring soap but I don’t think you want to buy a bottle just for that but sure works good