Thermostart location on Ford 4000?

spandit

Member
My tractor took all day to start yesterday (think I'd lost prime because I drained the fuel filter trying to stop the water drain leaking). Eventually got it going by sticking a hot air gun into the air intake, but it's not a very satisfactory solution.

Can someone confirm that the Thermostart plug should be installed in a tapped hole in the inlet manifold? Mine doesn't have a hole but there is a likely looking blank spot that could be drilled & tapped:

mvphoto5723.jpg


If that's not the right place, where else should it go?
 
They are already tapped for the
thermostart. Photo shows a 36/4600
manifold but the thermostat plug goes in
the same location.
Note the tube going to it.
a177494.jpg
 
I was just coming to reply to my own post saying that I'd found the tapped plug! Didn't have a picture of it, though, and nice to see the fuel pipe going in - hope I have the right fittings to connect it (I'm probably going to use a separate reservoir rather than T into the fuel system)
 
Just to be sure you know... it's not just a pipe going
into a plug. The plug comes out and is replaced by
the thermostart heater. The fuel line goes into that.
 
(quoted from post at 15:35:29 11/07/17) Just to be sure you know... it's not just a pipe going
into a plug. The plug comes out and is replaced by
the thermostart heater. The fuel line goes into that.

Perfectly aware of that, thanks! I've ordered this:

http://www.ebay.co.uk/itm/271989097762

Funnily enough, I do have one lying around in an old Eberspacher heater but didn't actually know how they worked until recently. I doubt the threads are correct anyway and it's too difficult to access the vehicle it's in (Pinzgauer) due to a load of crud that's been dumped up against it in my barn :D
 
With regards to the spot you're pointing at with your finger, I'll hazard a guess and say that this was originally intended as a potential location to inject ether, even though Ford ultimately didn't go that route. Either that, or it's a boost pressure test port for anything that may have ended up with a turbo on it.
 
(quoted from post at 20:41:10 11/07/17) With regards to the spot you're pointing at with your finger, I'll hazard a guess and say that this was originally intended as a potential location to inject ether, even though Ford ultimately didn't go that route. Either that, or it's a boost pressure test port for anything that may have ended up with a turbo on it.

Ford offered two different cold starting aids for the 1965-1974 3 cylinder diesels. One was the thermostart which used diesel fuel and the other was an ether injection system. You can see both in the "Fuel System" section of the parts diagrams. The ether system drawing is called a Diesel Fuel Primer Assembly Kit:

[urhttp://partstore.agriculture.newholland.com/us/parts-search.html#epc::mr64887ar498809](09G01) - DIESEL FUEL PRIMER ASSEMBLY KIT[/url]
 

I knew of that option but don't remember ever seeing one on a tractor.
We did have a Ford A62 wheel loader that came with a either start aide.
Some kids playing around one day pushing buttons emptied the entire can of either into the engine, when we figured out why the engine was locked we let it set till the next day before attempting to start again.

I pretty sure the flat spot on the top of the manifold in the top photo is where the opening in the mold was for poring in the molten medal. After the casting process they cut the stub of leaving that flat spot.
Seen them do that on How It's Made TV show
 

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