John Lundberg
Member
I was trying to drain the petcock under the radiator but nothing is coming out. Tha radiator is full, but I cannot drain it. Is it plugged somewhere?
- Thread starter John Lundberg
- Start date
gene bender
Well-known Member
When the drain is open and nothing comes out its either plugged or dry. Have you tried some compressed air thru the fitting?
John Lundberg
Member
Hi Gene; The radiator is full to the top and nothing comes out. i stuck a screwdriver up there, nothing came out, I even put my blow gon fro my air compressor up there, nothing.
John Lundberg
Member
Hi Gene; The radiator is full to the top and nothing comes out. i stuck a screwdriver up there, nothing came out, I even put my blow gon fro my air compressor up there, nothing.
John M
Well-known Member
- Location
- Nunyafn business
Never seen an M with a petcock on it. Most are just a piece of pipe with an elbow and a cap on it.
rustyfarmall
Well-known Member
Get a length of wire and put a bit of a bend in it so you can poke off to the sides a little. Eventually you should be able to break the crud loose.
There IS a drain at the bottom of the radiator. If you drain the block you are only getting part of the coolant out. The radiator drain is usually a pipe with a cap on the end. Looks like plumbing pipe. It's located on the right side (as you sit in the tractor seat) of the lower radiator tank.
rustyfarmall
Well-known Member
Yes, that is what mine has. I think it is 1/4" or 3/8" pipe, threaded on both ends, and maybe 3 or 4 inches in length, with a pipe cap on it. The original pipe cap had a couple of "ears" that you could get a grip on for removing the cap. Most of the "ears" are broken off by now.
It is a regular plumbing pipe. The parts book actually gives the size and length in the part name. I went to Menard's and bought a new one for my MD because the old one was rotted pretty bad on the cap end. The cap had a pn or IH or something cast into it. I just used a regular pipe cap, but I have the original in the toolbox.
Anonymous-0
Well-known Member
John if the wire doesn't work you may have to pull bottom hose.If it has a lot of crude in it you might want to have a radiator shop boil it out and get all crude out of it.
John Lundberg
Member
Hey Thanks!
John Lundberg
Member
Right, that is what it is.
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