Farm Equipment - D19 diesel timming

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D19 diesel timming

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Category: Allis Chalmers
Forum Name: Farm Equipment
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=9315
Printed Date: 20 Jan 2025 at 12:49pm
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Topic: D19 diesel timming

Posted By: Matt (Jordan,MN)
Subject: D19 diesel timming
Date Posted: 11 Mar 2010 at 5:43pm

When i got my D19 diesel running 2 years ago i lined up a chisel make some one made in the pulley and installed the pump. The tractor runs good but is hard to start. I have figured out that i have old pulley that takes a timming strip or sticker. I got the strip form the Parts Depot and i am trying to install it on the pulley. I am trying to figure out where is TDC on the pulley. There is a factory line on the back of the pulley. Is this line supposed to be TDC? thanks Matt

Replies:

Posted By: DougG
Date Posted: 11 Mar 2010 at 6:28pm

Sorry I dont have a exact answer to this question, but I have already pulled the no. 1 injector , got it coming up on the compression stroke by hand turning , then taken an electrode to find TDC -or see how close a timing mark is on the pulley ; Dr. Allis , Mack , or someone will know for sure about a D19

Posted By: Brian Jasper co. Ia
Date Posted: 11 Mar 2010 at 7:07pm

That's going to be tough to say. A dial indicator would be the way to find it. Are there no other marks at all on the ft pulley besides this chisel mark? The I&T manual only shows the timing degree markings. Nothing about what to do if the marks are unreadable or gone. You also need to know how many degrees advance to install the pump at.

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford

Posted By: D-17_Dave
Date Posted: 11 Mar 2010 at 10:20pm

Allis engines with the Rosa master pumps used a bolt on thr flywheel to mark TDC. On the left side of the bell housing there is a shoulder bolt sticking out towards the front of the tractor. Remove the bolt and reverse it back into the hole. Take a wrench and rotate the engine slowly. There is a counter bore in the flywheel that the bolt will fall into. There is only one hole so there shouldn't be any mistake. This will locate TDC on #1 cyl. IF the timing marks inside the pump window are seen. Remove the 2 screws on the pump window. There is a mark on the stationary rotor head of the pump and a mark on the rotating group. When this mark is seen in the window the #1 cyl. is on firing stroke. Line up the flywheel bolt then line up the pump marks then advance the pump to proper time. If I remember right from my AC pump manual each mark on the pump rotor is equal to 2 degrees of advance. I normally go a few extra degrees on a 262 in a 17 but the 19's have the later model pump with timing advance for cranking so that's not really needed.

Posted By: Matt (Jordan,MN)
Date Posted: 11 Mar 2010 at 11:15pm

The only other mark on the pulley is a line thats on the back. This line looks factory and if it's supposed to be the TDC mark then the chisel mark would be at 20 degrees advanced. This is a little to far advanced for the pump used on this engine which is 16 degrees advanced. D17 Dave is right on the early 262 diesels. The later 262's have all the timming marks on the pulley. Allis first used this timming strip that you stick on the pulley then later they got smart and stamped all the timming marks directly in the pulley. Thanks for the help Matt

Posted By: skipwelte
Date Posted: 12 Mar 2010 at 1:06pm

the timing marks are etched on the front pulley, they are very faint, you have to have it real clean to begin to see any marks and it is possible youve got a pulley from an early D17 which wont have marks on it. The best way to find TDC is to remove #1 injector, the sick a long rod in the hole, before sticking anything in the injector hole use a long wire to be sure the piston isnt at the botton but near the top. Roll the eng over until the rod goes down a little, measure how long it sticks out and mark the crankpully at the timing pointer cast in the front cover, now roll the eng the oposide way and watch the rod go up then down, stop when the the rod length measurement is the same and mark the crankpully again. Remove the rod, now measure half way between the two marks and thats TDC and you can permanetly mark the crank pulley. Now you have a known good TDC mark to start from. HTH

Posted By: Brian Jasper co. Ia
Date Posted: 12 Mar 2010 at 1:17pm

Dave, the early D262 engines use the pin for timing. Later engines went to the marks on the pulley.

Skip, just wondering how you do the wire thing. A D262 injector sits crossways in the head. With only .010 to .020 between the piston crown and head, the wire would get pinched between the piston and head before you found TDC. Are you doing this like a piston stop like what would be done to degree a cam?

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford

Posted By: Lester
Date Posted: 12 Mar 2010 at 4:05pm

I have a 262 turbo from a CII that I put in my WD-45D. It runs great and I pull a 4bottom and 15' disc with it. They have the best heads on the 262T, more meat and better cooling because the water pump is on the block. We pull the tractor in the 4500 to 6500 classes in 2nd gear at 6 plus mph when allowed. We won several classes pulling against larger tractors. These are hard tracks too, not sand. Either 18.4x30 or 15.5 and 16.9x38s and run 2600rpm.

Posted By: skipwelte
Date Posted: 12 Mar 2010 at 4:26pm

OH OH Brian, that would be hard to get the wire or the rod on top of the piston. I dont know what I was thinking of cause I have a DF19, D17 and a WD45 all diesels!!!!! In my minds eye I was pictureing that POS Ford endloader we had to find TDC on last fall. The guy took the inj pump off and had it fixed then put it back on and it wouldnt run. We fooled around with that thing for 3 days and still wouldnt run. Finaly i had the tech pull the injector and used the rod to find TDC, we set the pump and about 15 BTDC and it started and ran fine. Eveidently something had slipped while the pump was off, could not see the timing marks.

Posted By: Lester
Date Posted: 12 Mar 2010 at 4:41pm

Here is a link to a few of the photos of my WD-45 diesel with the 262T in it, from a CII.

http://s221.photobucket.com/albums/dd303/fayegood/2009%20Tractor%20Pull/Camden%20Tractor%20Pull/

Posted By: D-17_Dave
Date Posted: 12 Mar 2010 at 5:57pm

Brian, thanks for the correction. I've worked on later model Deere power plants that still used the RM pumps from the 70's and they also had the shoulder bolt timing. I was guesing they all had this.