D17 IV Diesel Block Heater

Dave,

On theD-19D we had, I put the intake hose for the tank heater, into the block drain, LS of the motor, the output hose went above the head, into the bypass hose, with a Y type connection.  Draws cold out the bottom, dumps it into the top of the block.  Always mount tank type heaters so the tank is vertical, or you will burn out the element...

It appears that D-17 IV might have a turbo on it ??

Ok, I see.  It was just spliced into the hose that comes down from the top and into the side of the engine beside the plug I was inquiring about.  That shouldn't be too hard to do.  Thanks for the picture.  Dave

Well, the hose goes up, connects to a tube that goes around the exhaust manifold and then the tube connects to a piece (don't know proper name for it) which the top radiator hose connects to on the opposite side.  I tried to look at the parts manual, but either do not have the right manual or just can't figure out the parts that everything connects to, so don't have proper names for everything.

Dave,

The online AGCO parts book is a good reference to help us get the location of the connection at the top of the engine.

Search for AGCO parts book, follow thru to the AGCO Parts Book Home Page
Click on Guest User - view books
Enter D17 in the model box and hit search
Select D17 IV
On the left column click on line/page 46, D17 Diesel Cylinder Head
The Cylinder Head is shown from the front of the tractor
Part no 26 / 74513529 is a flat blank plate held by two cap screws

This is where my hose is connected to the top of the engine. A threaded nipple goes thru the middle of the plate.

Now for reference scroll down the left column to page/line 76, Cooling System Water Heater Diesel Tractor
This view shows the factory option Coolant Heater System for the D17 IV Diesel
The connection to the top of the engine is into part no 6 / 70240199 which I believe is the same as the blank cover we looked at above. This is how my tractor is piped.
From the diagram and parts list you can see AC was using tubing for the upper piping and hose below. I have had no issue with the hose.

This location gets the heated coolant directly into the engine cylinder and block to optimize the heating distribution. My experience has been after 15 minutes from Heater startup the block area between the two connections and the inlet manifold starts to warm up.

Good luck with your install

Well, braved the snow and wind out to the shed and got some more pictures with the side hood off.  This shows the hose connecting to the tube, the tube going over the manifold and around the exhaust, then connecting into what I believe is the thermostat housing.  This does not seem to be what your hose is connecting to, but wonder if spicing into this hose with a heater would work.

Boy, thanks for the confirmation and all your assistance.  While it seemed to make sense to me, I'm always a little hesitant to do something that may have the potential to cause some damage without a bit of assurance.  Dave

So, it will pull cold coolant from the bottom, into and thru the heater, and dump it back in to the thermostat housing?  Went looking for a tube style heater today.  Boy, TSC sure doesn't have much tractor related anymore.  Will have to explore other parts store options.

Dave,

Most of that type heater are sized such that 5/8 hose is tight and 3/4 is an loose fit but will clamp down. The "Y" that comes with the heater may fit into the 1/2" hose but you may need to make an adapter to reduce to your 1/2" hose. That's been my experience with several brands over the years. Follow the instructions, they work fine when positioned and installed right. 1000 watts will also work on some of the decent timers, so you can use one if you want the heater to come on at a certain time, without having to go out and plug it in.

Well, I picked up a tank heater at TSC yesterday and have the tractor over at a local guy that works on ag equipment when not farming to install and look at some leaks, etc.  I'll let him figure out how to do the hook ups.  I post a picture and let you know when it is done.  Dave

Sounds like you got lucky on the timing of the breakdown.  Looking forward to pics.

Dave (NE), might I ask the serial number of your tractor?