Slow Speed Diesel Engines > Other Slow Speed Diesels
Resurrection of a Deutz MAH 914, 1952? Lets see!
ajaffa1:
Hi VP, I have no idea how that pre-combustion chamber is held in place. It might well be that you could use it to press out the injector but there is a chance that it has a thread on it and is screwed in place. Feel free to give it a sharp tap with a copper faced hammer and see what happens. I would not be putting it in the press.
I would be refitting the valves and putting the cylinder head back on. Put about 10mm of oil in the cylinder and rock the engine into compression, hopefully the hydraulic pressure will blow the stuck injector out of it`s housing.
Bob
cobbadog:
It can only be a guess to say yes push down on the pre-combustion chamber to push the injector out but I would also want to make an adaptor o fit under the injector so that a small amount of lift could be applied as some pressure on the pre-combustion chamber. Again I woul make an adaptor that would fit nicely around the chamber but not touch the raised section.
Lots of pre-soaking and maybe some or a lot of heat to assist in it's removal.
sirpedrosa:
Bob, Cobba, Gentles
Thanks for your tips, always related to the topic.
As far as my research got, I think prechamber is hold in by injector nozzle cap nut, with copper washers among there.
Let see some pics about (Still need shop manual);
1 - The injector body (pic from net, off course, mine is worst);
2 - The fuse holder and nut;
3 - The prechamber on place;
Now lets see: In this case fire holes are opposite fuse hole, therefore...the right pre chamber will be...
4 - this one... is it? As you can see there is a hole to the fuse in front of fire holes;
5 - Its the same prechamber, but it has another fuse hole behind fire holes (and missed the dowel to align fuse hole);
6 - Diferent view of prechamber.
sirpedrosa:
Now we can compare another model to see difference.
I can see is the outer diameter (thinner than mine) and length of pre chamber.
Thoughts are welcome.
Cheers
VP
ajaffa1:
I`m with Cobbadog, lots of soaking, maybe a little heat. Only apply pressure to the outside edges of the chamber (have a look in your box of sockets, one of them might be the perfect size).
Go easy with the press, good luck.
Bob
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