D19 Diesel engine work

Nice looking tractor.  I am sure it's in good hands now!

Don is that considered a PC head?   Leon   Cmo

Don, Ive wanted to thank you for some time now for the great info and pics. It helps tons of guys. Also have a D19 story to share. 1978 I worked in a dealer and we did a lot of work for one farmer who was all allis. His d19 had 10,000 hrs on it and i mean they were hard hrs. he wasnt exactly gentle. It limped in on about 4 cylinders and I rebuilt it for the first time, eng never was touched before. The block was so bad cracked and low sleeves and everything you could think of was wrong. We just orderd a new block and it showed up in 3 days from batavia ill. dont remember cost. Dont ya wish we had a crystal ball and ordered extras ha ha. I Uncrated it, steam cleaned it, and carried block to shop area. later looked at shipping papers and block alone was between 280 and 300 lbs. I never could pick one up again !!!! More muscle than brain back then not a lot of either now !! all new injector tips and beautiful rebuild , cuople hrs on dyno and she was a sweetheart

I didn't find the video I was looking for but this might help you understand better how the
Allis Chalmers Buba Diesel head works. Lanova systems and most pre-cup Diesel systems are a little bit diff but this will give you some idea how it fires.  I hope.
https://www.youtube.com/watch?v=Ll3eK_EvsBE

FHOliver wrote: Don, in hindsight I didnt mean to hijack the thread. please keep pics coming, Also how can you tell its a replacement ? lack of serial # ?

First off you didn't hijack.  Yes the lack of the ser # is one way to tell.

Skyhighballoon(MO) wrote: Don. That tractor will sure be one the owner can crow about when you get it done. Mike

Mike the tractor owners like you and the nice guy that own this tractor's make my job a piece of cake. I can't name who my customers are in-less they let me, I'll bet he will let me sometime. lol  

Don, no harm in disclosing its my tractor. I'm looking forward to using it with the new motor.

Hmmmmm. Is there some puns going on here that Michael "Crowe" should be able to "crow" about this tractor when it's done? I am envious "in a good way" of this project. BTW, nice talking to you this morning Don, and I will definitely be getting back to you soon. Darrel

Since the Lanova system is being discussed here I can post a picture we took of the cut-away WD45 diesel head and air-cell with an injector firing.  The main portion of the fuel pulse is directed into the air-cell. Since the stream flows across the combustion chamber in the head some of the outer mist from the injector misses the air-cell hole and ignites there. The piston is still on its way up during the injection pulse so the beginning of the flame in the combustion chamber enters the air-cell igniting the fuel there. All that exploding pressure is metered out through the orifice of the air-cell. You can see that the WD45 air-cell has two spherical chambers with metered orifices, not sure if the D19 air-cells are the same. I put together what information I could find on the Lanova system back in 2006 when I was working on mine.  Here is a link to that:
http://www.allis01.com/fossto/Lanova_System.html

TomMN wrote: Since the Lanova system is being discussed here I can post a picture we took of the cut-away WD45 diesel head and air-cell with an injector firing.  The main portion of the fuel pulse is directed into the air-cell. Since the stream flows across the combustion chamber in the head some of the outer mist from the injector misses the air-cell hole and ignites there. The piston is still on its way up during the injection pulse so the beginning of the flame in the combustion chamber enters the air-cell igniting the fuel there. All that exploding pressure is metered out through the orifice of the air-cell. You can see that the WD45 air-cell has two spherical chambers with metered orifices, not sure if the D19 air-cells are the same. I put together what information I could find on the Lanova system back in 2006 when I was working on mine.  Here is a link to that: http://www.allis01.com/fossto/Lanova_System.html

Tom that's a nice cut away and tells the story way better that I can, good job. Thanks for posting it.

Don,
 Your right into it now! Great pictures of what to look for on these engines.
Thanks for posting the pictures. I love the before and after stuff and the inspection work needed to determine next moves.
What are the big items that folks cant get any more for these engines? Is there a list of things that you just cant get as remans?
Regards,
 Chris

Well, I'm starting to get an uneasy feeling about mine now.  My Dad had purchased my D19 and he is no longer with us.  It has always misfired when cold but looking at all the problems they seem to have and the lack of parts, this is going to be an extremely tough restoration. Thank you for documenting all the problems with yours so I will know what to look for when I tear in to it. 

Well I know at least 1 cylinder if not 2 have low compression and don't fire until it warms up. We have had the injectors tested and they are fine. Makes it a bear to start even in warm weather.  Without removing The head, are there any symptoms that would indicate that the sleeves have dropped?  I'm worried that its going to look like the one Don is working on now and I don't want to hurt the engine before I get a chance to fix it. 

Has anyone ever tried to use shims under the sleeve flange to raise them up? Or maybe there's no such thing?

TramwayGuy wrote: Has anyone ever tried to use shims under the sleeve flange to raise them up? Or maybe there's no such thing?

If you could see how narrow the flange is,you would understand that a shim is about out of question.

Don,if you get a chance,could you post a pic of either the sleeve or the counterbore to show how minute it is?