Author Topic: Resurrection of a Deutz MAH 914, 1952? Lets see!  (Read 25199 times)

cobbadog

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #240 on: May 01, 2023, 07:20:54 AM »
Very nice VP
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Willw

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #241 on: May 01, 2023, 12:01:40 PM »
Beautiful restoration VP, I'm looking forward to the video of it running.
Daily driver '97 GMC W4 tipper on WVO/Kerosene mix.
6/1 clone standby generator.
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sirpedrosa

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Gentles,

Here we go again!

Before fire up the German, got to get the rocker arm balance spring. Buy it here: https://www.fanamol.pt/

Buyed 2 torsion springs - just in case (10€).

Made customisation spring, but not fully happy with result (it work, but not as I intended it should do)

therefore next came to workbench and it fits like it should do; see difference in bend angles!

As usually a few pics for enthusiasts members.

Cheers
VP

PS: Got to buy silicone hoses for diesel from syringe to IP, and return from IP to syringe.
« Last Edit: May 05, 2023, 12:01:03 AM by sirpedrosa »
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

sirpedrosa

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Resurrection of a Deutz MAH 914, 1952? Lets see! FUEL LINES FLOODED
« Reply #243 on: May 07, 2023, 12:05:30 AM »
Gentles,

Fuel lines are flooded.

As it was my thoughts, return line acts like a balance line, therefore my thoughts expressed here: https://listerengine.com/smf/index.php?topic=9555.msg111236#msg111236, about make a goose neck, with lines passing by top level of fuel tank, made my theory true!

Never mind of theories. I want just the German kicking!

Maybe this mornig Ill put the fuse on it! LETS SEE!

One pic for the show.

Cheers
VP

By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

ajaffa1

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #244 on: May 07, 2023, 02:36:30 AM »
Looking good VP. I hope she starts up easily after all your hard work. Looking forward to the video. What are you going to restore next?

Bob

cobbadog

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #245 on: May 07, 2023, 12:25:08 PM »
Lovely work on the spring VP. We look forward to seeing and hearing the "German"run again.
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sirpedrosa

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #246 on: May 07, 2023, 09:06:18 PM »
Gentles,

The German is alive!

You can see the vids here:

1st attempt: https://youtu.be/5kGsakboBFI

2nd attempt and run: https://youtu.be/gQq4xgi5IT0

Next task: make decent return fuel lines, fuel tank brakets, and the trolly.

Here are some pics for the show with preparations.
1 - Hanged on ceiling;
2 - Hanged on A frame;
3 - laid on rubber mat;
4 - Back on kart.

Enjoy.
Cheers
VP
« Last Edit: May 07, 2023, 10:48:19 PM by sirpedrosa »
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

ajaffa1

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #247 on: May 08, 2023, 08:21:05 AM »
Well done VP, a nice restoration of a part of our heritage, very nice to see first smoke on your videos. Looking forward to seeing the trolley you make and a fuel tank fitted.
Another one saved from the scrapman!  :)

Bob

sirpedrosa

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Bob, Gentles

Ordered a brass tap to the German hopper. It arrived at gold price due the brexit. Customs charged me almost acquisition price. Damn Brits!

Thought the leaking was from flared joint of HP pipe to Injector. So make a visit to my friend Faria of MARCODIESEL, with 46 years of expertise.

Broke the conic joint and put a new one. Back to home and line still leaking. Damn German!

Put a toothpick clogging line and compressor tip at the other.... and: well, well the line is broken by the biconic seal!

Got another new biconic seal, but first I need to weld line and file it to 1/4 in order to all become right.

A few pics to the show.

Cheers
VP
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

ajaffa1

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #249 on: May 11, 2023, 11:28:25 PM »
Hi VP, very frustrating little problem you have there. In the past I have had to make replacement high pressure pipes, most car brake servicing centers stock 1/4" steel hydraulic pipe.
You could probably braze the crack but be careful to remove all the flux from the inside of the pipe, you don`t want it getting in the injector.

I`m one of those Damn Brits! I had the intelligence to leave that small island a long time ago.  :)

Bob

sirpedrosa

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Bob, Gentles

High pressure line still leafing.

After brazing, filing... brazing... filing... hammering the pipe tip... snuggling to seat at injector... hammering again... it give a go.

Put diesel in syringe, longer return line, starter cigar at chamber (not lit), 3 or 4 turns of crank and it fired up right way.

Another setback. Return line start to spill everywhere. AND the conic joint still leak a drop, but I'll braze the back of conic seal.

2 pics, and a vid [https://youtu.be/rfZeYHuvdbQ] for the show.

Cheers
VP
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

ajaffa1

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #251 on: May 12, 2023, 10:47:29 PM »
Well done VP, The best thing about your video is the big smile on your face! The Deutz runs very well, starts easily and sounds wonderful.
I hope you manage to fix the fuel line drip.

Bob

dieselspanner

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #252 on: May 14, 2023, 10:47:22 AM »
And the same from me, especially the grin!!

Cheers
Stef
Tighten 'til it strips, weld nut to chassis, peen stud, adjust with angle grinder.

sirpedrosa

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Bob, Stef, Gentles

After going around and around with the HP line, and braze the back of conic joint at injector, and put new return line (all on trail mode).

It still has the HP line very dented with the years of rust, and telling the truth it will be better to make a smooth new one.

It still sweats at the joints, but I have to give it as operational for now.

And the return line drips a lot. Im questioning it the return to the filter will be best solution.

Lets see!

2 pics and a vid [https://youtu.be/9B3svWRu7AE] to the show. The vid is a 2 merged vids.

This run push out 5 nuts from the kart (the wood is know dry)

Cheers
VP

PS: PreChamber must be very clean of diesel to light the fuse, else it flood and doesnt autoignite.
« Last Edit: May 14, 2023, 05:55:00 PM by sirpedrosa »
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

iff7378

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #254 on: May 30, 2023, 03:37:18 PM »
This is an awesome looking restoration!!

I am working on an MAH 916 right now and have it just about ready to fire for the first time. I'm running into an issue shimming the injection pump for the proper start time of fuel delivery. When I bought this engine years ago, the pump was off and the shims were in pieces so I have no idea what thickness to even start with.

Would you be willing the measure the thickness of the shims and also the steel washer on the injection pump on your 914? I haven't been able to find any starting spec for this thickness anywhere in the manual. I'd like to start somewhere with say 1 mm of shims then adjust the timing from there. I'm trying to save myself the hassle of starting from 0 and end up installing and removing the pump 30 times while I work my way up in shim thickness. Not to mention dumping diesel everywhere and rebleeding it everytime.

Thanks!
Ian