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Old 01-05-18, 01:30 PM   #11
Grendel
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No unfortunately not; only on the engine plate as far as I know.
You could post a picture on the German forum. They might be able to tell you more.

Hubert
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Old 01-05-18, 03:21 PM   #12
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I pulled the crankcase door off and there is a number stamped into the face, 502459. Could this be a serial number?

Dan.
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Old 01-05-18, 06:51 PM   #13
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Great, that would be 1938.

In '38 the name changed from Humbold -Deutzmotoren A.G. in Klöckner - Humbold - Deutz.

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Hubert
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Old 01-05-18, 07:36 PM   #14
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Thanks Hubert. I tested the fuel system out today and as expected I got nothing out of the pump. I am surprised at just how short the pumps stroke appears to be, I reckon it only moves a few mm. Anyway, tonight I pulled the pump and injectors apart to see what is going on with them and to see if they can be revived. The pump was full of filth bit the two valves look ok, it pumped fuel when I tested it on the bench. The injectors were a different matter and the indirect one had a seized needle and the other was blocked solid, that one works a treat when I pop tested it but the main injectors fitting will not seal on the pop tester so I have not checked that one. It all went back well enough and looks tom be in good order so hopefully it will work ok when I refit it tomorrow.

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Old 01-05-18, 08:23 PM   #15
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Quote:
Originally Posted by Dan_pt View Post
Do you have any pictures of your one? (snip)

Dan.
Hi Dan,

Sorry this has taken a while (spare computer and transfer from slides).

This is the Otto engine that we had. I see from the slide that we bought it in April 1973 in this condition.
5-1-2018_003.jpg
You can see the double injectors in this shot, and also a broken off foot which has had a repair during its working life.

It was restored by 1975, and here is it shown being rallied at Lancaster. My Norman T300 is next to it which gives some idea of its physical size.
ScanImage002a.jpg

I seem to remember that the diesel pump was a hexagonal affair.... but I may be wrong.

Clearly the size and weight did not put us off, and in May 1979 we acquired this newer version which is actually a Deutz. This beast has only the one injector in the head.
5-1-2018_001.jpg

5-1-2018_002a.jpg

Phillip
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Old 01-05-18, 08:41 PM   #16
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Thanks for that Phillip, your first engine looks a bit bigger than mine, the pump on my engine is just a rectangular block. I think it should have a drip tray situated underneath it but it is long gone. My engine is a fair old weight..

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Old 01-05-18, 08:49 PM   #17
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You may be right about the pump being a retangular block, I had it in my head that it was hexagonal, but it was certainly an odd shape and didn't look anything like a modern pump. It did have a drip tray under the pump.

Weight wise I think the blue Otto was about 500kg. We used to tow it behind a Morris J4 van, and that struggled a bit with the weight on hills. The white Deutz may have been a little bigger, but it got sold before we got around to restoring it.

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Old 01-05-18, 09:42 PM   #18
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Ill get some pictures up when I get the chance. The pump is unlike any modern pump I've seen before.

Dan.
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Old 02-05-18, 01:39 PM   #19
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Talking of pumps, sadly mine has had it. I refitted it along with the injectors this morning and hopes were high as the system soon bled out and looked ready to go. Unfortunately, it looks like the seal around the pumps piston/plunger has worn and leaks terribly. I can beat the seal by holding a gloved finger over the outlet........ not good.
I'm going to pull the plunger assembly back out to check I've not missed anything, otherwise I'll be looking for some bits.

Dan.
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Old 02-05-18, 02:03 PM   #20
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Don't know if it has any similarity to the Uniporn injection pump but just in case:-
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