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Messages - sirpedrosa

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31
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! SUMP FILLED WITH OIL
« on: April 28, 2023, 12:39:23 AM »
Gentles

The German got his sump filled with fresh oil - 3,5L

Oil pump squirts ok - I think it should have a pressure relief valve, but as far I can see it doesnt.

Next task: screw tight flys nuts.

Remove fuel line to IP, to make test runs. After all ok Ill put line again from fuel filter.

Some pics for the show.

Cheers
VP

32
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! ZÜNDFIX
« on: April 26, 2023, 05:05:36 PM »
Cobba, Bob and Gentles

A far as my research got, this starter fuse is needed due to LOW compression - large TDC clearance - and therefore air did not reach high temp in order to make combustion.

So the fuse autoingnites with compression and stays lit till it burn completely.

As you can see the TDC claearence is about 4mm and must add prechamber volume (see here: https://listerengine.com/smf/index.php?topic=9555.msg111218#msg111218).

my 12/2 stay at 1,3mm - https://listerengine.com/smf/index.php?topic=8320.msg102670#msg102670.

My 5cents.

Cheers
VP

33
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! THE ZÜNDFIX IS HERE!
« on: April 24, 2023, 08:48:02 PM »
Hi Gentles

YUPI! The zündfix arrived from Germany.

Buy it from https://www.oldtimer-kuepper.de, and Im very happy with deal.

They are reliable! They also sent a catalog.

Now got to put oil in, torque flys, and - again - put diesel on the seringe to give it the first run.

A few pics for the show.

Cheers
VP

34
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! FUEL RETURN BANJOS
« on: April 06, 2023, 11:59:27 PM »
Gentles,

As long as I cant get an original fuel tank, that holds return fuel lines, from IP and injector, ill put them to return to fuel filter - off course with goose neck, with lines passing by top level of fuel tank - and therefore fabricated a banjo tower.

A few pics to the show.

Cheers
VP

PS: already waiting for the zundfix to fire it!

35
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! ANOTHER TORCH?
« on: April 02, 2023, 12:28:15 AM »
Gentles

Belive, its the same torch! 1st clean is done. Got to put new rubber gaskets, and leather in pump.

Decompressor lever got paint... again.

Cheers
VP

36
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! DECOMPRESSOR LEVER AND TORCH
« on: April 01, 2023, 05:01:03 PM »
Gentles

Fine tweaks at the German. I got to fill with brazing the decompression lever in order to make it accurate with intake rod stop nut.

And a tour to scrap man with some junk, found there a kerosene torch to restore. Nice isn't it?

A few pic to the show.

Cheers
VP

37
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? A FEW MORE PICS...
« on: March 27, 2023, 07:56:19 PM »
7 - Rocker train;

8 - Injector and fuse holder;

9 - Governor controller and decompression lever;

10 - Fuel filter assembly.

Almost done...

Cheers
VP

38
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? THE GERMAN GENTLE
« on: March 27, 2023, 07:23:25 PM »
Gentles,

A few more bits and tweaks.

1 - Big end torqued at 140NM; And oil pump by eyeball!

2 - IP tappet got also serial number;

3 - tin prove to get TDC bump clearence;

4 - tin smashed by piston at TDC;

5 - measuring clearance;

6 - Torque head nuts at 170NM... by now! [it has 3,6mm of clearance, therefore low compression, and I think this is why it need zundfix starting cigarettes]

39
Listeroid Engines / How to pull tap bearings off the crankshaft CS20 twin - GRIND??? WTF
« on: March 17, 2023, 12:04:57 PM »
Frog,

Grind the timing gear???

Take a look at the wright and simple tool!

Cheers
VP

40
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! SOME MATH TO THE GERMAN
« on: March 15, 2023, 11:51:47 PM »
Gentles.

Because head got slight skim, now I got to do some math to confirm travel of valve stems.

Pay some atention do this pic: https://listerengine.com/smf/index.php?action=dlattach;topic=9555.0;attach=7412;image;

As you can see Cam lobe has 8mm profile, therefore got to extend measure to rocker arm, to get max travel of valve stem, and math says it will be max 13mm.

See pic!

Cheers
VP

PS: Late night putting things together, to avoid breaking bits one against others.

41
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! MILE STONE
« on: March 15, 2023, 08:41:21 PM »
Gentles

Today got head from VEICOMER (https://veicomer.com/en/);

New bronze valve guides, milled surface, and top valve stems.

Now prepare all to put the German snoring.

A special thanks to Mr. Pedro, the VEICOMER's owner - as you can see he's also a man with hands on job, on top of running all the show at shop.

A few pics to the show.

Cheers
VP

42
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? ROD AND PISTON IN PLACE
« on: March 14, 2023, 10:09:56 PM »
Gentles

After a work day nothing else better than some yoga by the German.

Give some heat to piston with hot air gun... and voilá pin slipped like butter. well not quite!  ;D ;D ;D

I put all piston rings aligned at 180º from each (with gap by OD of pin), and oil ring by the pin to avoid any force on the ring tips. (Please tell if this is the right way).

Snug large end and give a few rotation and take cap out to see if everything was ok. put back cap.

Made a small oil sump (brake spray cap) and fill with oil, and give several rotation to crank, to put pressure at oil pump. As you can see it drips nicely.

Piston course at honed liner looks sweet!

Things look to come together.

A few pics for the audience.

Cheers
VP


43
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! JUST TO SHOWOFF
« on: March 14, 2023, 12:31:35 AM »
Gentles, Cobba

Cobba, yes is a tight fit, and is a good sign!

Put flys on crank to see how they fit. Gorgeous don't they?

1 pic to the show.

Cheers
VP

44
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! MORE STUFF IN
« on: March 09, 2023, 12:23:10 AM »
Gentles

Liner is in, and oil pump too.

Rod and piston next. Piston needs heat to put pin.

A few pics to the show.

Cheers
VP

45
Other Slow Speed Diesels / Resurrection of a Deutz MAH 914, 1952? Lets see! CRANK IS ON PLACE
« on: March 06, 2023, 09:40:31 PM »
Gentles

The German is going up!

Today put crank on place and measure the play 43/100 mm.

the 2 threaded rod studs help to align ball bearing boss to crankcase.

A few pics for enthusiasts.

Cheers
VP

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