Author Topic: Resurrection of a Deutz MAH 914, 1952? Lets see!  (Read 22687 times)

sirpedrosa

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Resurrection of a Deutz MAH 914, 1952? Lets see! INJECTOR CERTIF. AND MANUAL
« Reply #150 on: September 26, 2022, 02:07:33 PM »
Stef, Gentles

Some vacations days (now that the summer is ended, and people get to work again, and madness chill down at beaches), got the Injector from lab, to put it at 120bar.

They clean the Injector needle (with ultrasound) and had put 2 more 0,01mm washers (I toke to them).

Manual from Germany arrive today also.

About the threaded rod I know you are absolutly right, but now I only got the cat to hunt!

2 pics for the show.

Cheers
VP
« Last Edit: September 26, 2022, 02:10:56 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).

sirpedrosa

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Resurrection of a Deutz MAH 914, 1952? Lets see! LINER IS OUT!
« Reply #151 on: September 26, 2022, 10:34:34 PM »
Gentles

Finally the stuck liner is out.

The sledgehammer was a good help with the wooden stick.

Lime stone was rock solid.

Now a good clean and a new ring.

A few pics 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).

cobbadog

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #152 on: September 27, 2022, 07:29:25 AM »
Everything is slowly going your way. A rebuilt injector ready to install, a workshop manual that you can understand but not me and the all important liner is safely out. You must be happy.
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ajaffa1

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #153 on: September 27, 2022, 09:30:18 AM »
Hi Guys, well done VP on getting the liner out. A bit of a clean and a new O-ring and you are ready to go.
Looks to me like your new instruction manual is written in German, are you a German speaker? More importantly do you speak technical German? I can speak a few words of German, French and Italian; enough to order a beer and a pizza, I would be completely lost with a technical manual in any language other than English. I take my hat off to you for your determination and linguistic skills.

Bob

sirpedrosa

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Resurrection of a Deutz MAH 914, 1952? Lets see! GOOGLE TRANSLATOR & BITS
« Reply #154 on: September 27, 2022, 10:50:26 AM »
Cobba, Bob, Gentles

It's nice to see some improvements - rather those setbacks that happened.

Yes, manual is german but the more important is sectional cut print of diagrams.

Text, just take a pic and upload to internet to de translated.

I'll order a deglaze to the liner.

Next task will order blanks to made valve guides, and start to reassemble.

Cheers
VP

PS: Bob take look of this guy that is reassembling a CHANGFA (https://www.youtube.com/watch?v=qLjozp5kSdA): You don't need to know indian language to now what he is saying, because he's saying international language of any guy is puting in place camshaft. And he also talk indianEnglish and you can understand he is doing things right... WELL.... I use gloves on my hands and hammer got wood or alu, or brass first to hit anything. But there are a few engenierings in the world that anyone compreehend. CAPISCI?

Well, again, we got to tell him to heat piston first!  ;D ;D ;D ;D ;D


PS2: A few more bits to the basket.
« Last Edit: September 27, 2022, 06:14:53 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 #155 on: September 27, 2022, 11:28:49 PM »
Hi VP, I get the point you are making about language. Most engineers can communicate by pointing and grunting!
I think that guy is going to have a lot of trouble cleaning his hands, I hope he has an understanding wife.
Good luck with the valve guides.
Bob

cobbadog

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #156 on: September 28, 2022, 06:48:41 AM »
That little demonstration was interesting to say the least. Yes, words were not needed only gestures. I bet VP would not want him on his rebuild nor handle the nice clean parts VP has prepared.
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sirpedrosa

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Resurrection of a Deutz MAH 914, 1952? Lets see! MORE BITS TO BASKET & BACKBONE
« Reply #157 on: September 28, 2022, 04:28:31 PM »
Bob, Cobba, Gentles

A few more bits done to basket (injector, clamp and pump).

And... the damn sciatic nerve taking my night sleep - 4 nights - and pain killer not doing effect.

Result: shot direct in the harse! and more 6 to go.

The last bolt on the German I think it will be withdraw with the angle grinder. Do I need to remove it? Maybe not, but a restauration is a restauration, and restauration starts only when last bolt is removed. ::) ::) ::) ::) (My godness!).

This one already take a bottle of oxygen and now its stuk.... and I think is has one thread jammed.

Hum, another setback? maybe it's cursed.  ;D ;D ;D ;D

A few pics 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).

sirpedrosa

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Resurrection of a Deutz MAH 914, 1952? Lets see! STUD OFF & STUPIDITY
« Reply #158 on: September 28, 2022, 09:15:17 PM »
Gentles

Hooper stud won cut disc, and grind disc from angle grinder.

This stud never would  be withdraw, because of rock solid limestone between threads.

Drill down and clean... WITH STUPIDITY - AND THE 5/16 12G TAP. (prior bad measure)

Off course got to buy the 5/8" 11G to clean it right!

3 pics - 1 of stupidity!

Cheers
VP
« Last Edit: September 28, 2022, 09:17:23 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 #159 on: September 28, 2022, 10:28:01 PM »
Hi VP, sorry to hear you have sciatica, I also get it occasionally. It can be very disabling and regular pain meds do nothing to help, I hope the injections work soon.
I think the tap you need is 3/8" not a 5/8"!
Nothing stupid about adjusting with an angle grinder, I`ve been doing it for years!  :laugh:
Everything else is looking really good, can`t wait to see it all going back together.

Bob

cobbadog

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #160 on: September 29, 2022, 06:51:48 AM »
I feel your pain also VP. I get sciatica when driving long distances and now since retiring we do a lot of long drives with the caravan behind us. So far no meds have made any difference including injections, so just do my best tot tolerate it and plan shorter trips where possible.
I would measure the thread on the end that you have cut off. I am not too confident that it will be an Imperial thread being German made engine so I would look closely at the Metric threads available in that diameter of rod. You would find it a huge help if you bought a thread measuring gauge that measures the pitch of both Metric and Imperial threads then match the pitch to that size rod and you will not make any mistakes in selecting bolts, nuts and especially taps and dies. Common pitches in Metric that size are 1.0mm, 1.25mm, and 1.5mm. Yes there are other pitches but these are the most common. Hope this information helps you and that you feel better soon.
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ajaffa1

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #161 on: September 29, 2022, 09:27:54 AM »
Hi Cobbadog, I think VP is correct, after WW2 German manufacturing industry was next to zero. The Allies introduced the Marshal Plan to
help them rebuild. Early machines built in Germany up till the 1960`s very often had UNC nuts, bolts and fasteners made in the US or UK.
Sorry to hear you also have sciatica, getting old is not for the weak!  :laugh:

Bob

cobbadog

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Re: Resurrection of a Deutz MAH 914, 1952? Lets see!
« Reply #162 on: September 29, 2022, 12:20:18 PM »
I forgot about the period of time when the industry had almost stopped. Still, a set of thread gauges should be in every tool box and they are not expensive to buy.
I also have both shoulders that refuse to play the game any more. Both been operated on but that was a while back and now getting back to how they used to be, no good. Just retired last Christmas and now find myself digging a 60 mtr trench to catch rain water run off. I just dig for as long as I can then rest.
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sirpedrosa

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Resurrection of a Deutz MAH 914, 1952? Lets see! 5/8" 11G and... 1/4 Gas 19G
« Reply #163 on: September 29, 2022, 08:15:26 PM »
Bob, Cobba, Gentles

Thanks to share pain, and other grey hair limitations curricula.  ;D ;D ;D ;D

Lets go:

1 - UNC or BSW are both 11G; well UNC will feel tight in BSW, and a litlle loose if inverted.. Am I right?;

2 - Bought the 5/8 bolt (and ordered tap BSW otherwise it as to be made expressly, and will be expensive), toke it to machinist to cut head and make thread.

3 - Could find the thread of governor control screw - Its a 1/4" Gas 19G.

And yes I got a set of thread gauges - BSW/F and Metric, but not UNC (not available).

2 pics.

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 #164 on: September 29, 2022, 10:02:55 PM »
Hi Cobbadog, I know just what you are talking about, with me it`s the elbows not the shoulders. My new shed has required hundreds of meters of trenches to be dug, the ground here has been too wet to use an excavator so I have had to dig them by hand. I find if I can dig for an hour and then have a beer, I can dig for another hour and repeat. There are 4 empty beer cartons in my recycling bin and the trenches are nearly dug!  :laugh:
Hi VP, If I remember right, the difference between BSW and UNC is the thread angle, 55 and 60 degrees I think. So you are right a UNC bolt will fit a BSW nut, the fit will not be quite as strong but should be OK in this situation. You could also apply a couple of drops of thread locker. 1/2 " BSW and UNC have a different number of threads per inch. ( I think it was 38ac who reminded me of this a while ago)
Be careful with the BSP threads some have parallel threads and some are tapered, for example grease nipples generally have a tapered tread so they tighten into the hole.

Bob