Putting a tank heater on one ninety

I want to put a tank type engine heater on my very early one ninety gasser with the 265 engine in it, and need a little advice. I know from experience and looking at the directions, that I need to feed the bottom inlet port of the tank heater from the lowest point of the water jacket. Best option I can find for that, is a plug behind the carb appears to go into the water jacket; hopefully not an oil gallery. It is about a 3/8 or half inch pipe thread plug, so that is why I think it's a water plug. Most oil plugs are smaller. Assuming that plug does get me the source for the bottom port, where do I return the to out of the top port? I put a heater in the cab, with the help of a shop in town several years ago. One line to the heater is tapped in by the thermostat housing, and the other line by the water pump. If I remember right, one of them two ports, we had to drill and tap in, but that's somewhat irrelevant. Question is, can I just tee into one of these heater lines. It would be nice if the tank heater circulated through the heater in the cab, but obviously the most significant factor is that it warms the block up. Thanks, Darrel

Thanks Dr.
Darrel

Dakota Dave wrote: Why not put a freeze plug block heater on it works much better than a tank heater the freeze plugs are easy to get to there one the right side of the block just under the manifold. That's what my 190 has it works great.

The rear port has 2 bolt holes to retain the heater in the freeze plug location like this one shows.

Edited by Charlie175 - 27 Dec 2017 at 7:50am

Does the Freeze plug in's have a way to retain the device in the hole without bolts?

I put one on Dad's '65 gas XT but I don't remember much about it other than I think it bolted in like the pic above.... I think. It was about 20 years ago or more.

What size is the hole?

Edited by Charlie175 - 27 Dec 2017 at 10:13am

Odd that the whole block heater thing came up now, because I just got home from NAPA with a block heater for it that will bolt in to the hole just like in the picture. Main reason that I was initially thinking about the tank heater was because I had a brand new one on hand from a box of auction sale stuff. Then I come home and read my exact train of thought. LOL. Darrel

Frost plug heater is the way to go faster heat time and with less wattage. 600 watts if your just plugging in for an hour, 400 watt with thermostate if you plan on leaving it plugged in longer periods of time. and then put insulation around the engine to block the cold off.

http://www.ebay.com/itm/Frost-Plug-Heater-1-1-4-600-Watt-120V-Massey-Ferguson-265-175-Allis-Chalmers-/132138665603?_trksid=p2385738.m4383.l4275.c10

Can't say this one fits but contact seller and see if the 180/190 are listed.
http://www.ebay.com/itm/KATS-K4CR-400W-120V-FROST-PLUG-ENGINE-HEATER-FREE-1ST-CLASS-AGCO-ALLIS-tractor/332477148387?hash=item4d692eace3:g:sFoAAOxykMpTIjZe:sc:USPSFirstClass!54840!US!-1&vxp=mtr

 Removing frost plug is punching the center  and then twist it out. Seems the scources say the frost plug is 1 1/4 inch hole. 
  I installed a tank heater on 190 and I put the tank heater below the drain plug and then ran a hose down from the thermostat area to the inlet... otherwise when the heater was entering at the thermostat, it would open it and heat the radiator, and the thermostat was good... It did not do that on the 190XTD.

This frost plug is on my 1976 7000. Just above fuel injection pump.

The XT’s that I have seen have the heater in the rear freeze plug on the right side. So far my XT is starting well below 30 degrees with the manifold heater but agree block heater would be much easier on the ole gal. Ed’s pump rebuild resolved a lot of issues including the hard starting.

Really appreciate the pictures and these helped me locate the freeze plug. The reason why I couldn't see it is because the fuel lines and the fuel lines holder was blocking my view of it. Bad news is this means I have to bend these fuel lines and/or remove them to extract the plug and to make room for the frost plug electrical connection. All six of the lines are in the way too. Does everyone that has an early 190xt have this same problem? Are my fuel lines run differently than other 190xts?

Regardless this is going to be a bigger job than I wanted which may send me back to the circulating tank heater. I noticed that Dr. Allis indicated that I could tap into that heater hose I have coming out of the block, particularly since I don't use the cab heater anyway.

The 7000 picture above does not show the fuel lines in front of the freeze plug and it would be easy to install it if I had that view.

Thanks to all who replied.

The reason you can see the frost plug easily on my 7000. Is the fuel pump has been taken out to send to Ed. I'm going to put a heater in that location this spring.  Tim

DMiller wrote: My 180 is a Diesel but the heater fits into a bolted boss on the right side. Cord is hanging from it.

Use the one at the rear next to the starter