Pump timing

[Harlan]

Just orderd the dial indicater stem to run my pump timing up. Any sugestions on where to get a dial inicater and what range to get. 0-5 or 0-10- It has the 8mm shank. What do you think the pump

Setting should be to start out. I am sure it is not set up vary far. I had the pump set up but Dodge put it in for me, so it will be a stock setting. Read my signature.

Harlan

 

[Tim1]

Harlan, the pump is probably set at 1. 25 now and you will most likely want to be at 1. 50. As for the guage to go on the adapter, I'm going into portland Precision Instraments today and see if I can come up with one that will work for us. I'll keep you posted! It looks like a guage that goes to 5mm is plenty adequate. Tim

 

[Harlan]

Thanks Tim1 , I also an going into Reno Nv and see what is there,

Will get back on the net, When I get home. and let you know what I find.

Thanks Harlan.

 

[Tim1]

Harlan, found the dial indicator today in Portland, it has a 0-10mm range with a 8mm stem. Once I time this truck (maybe this weekend), if it works, Ill post the model number. It was 60. 00 and a Myatoya. Tim

 

[NuttyMopar]

I know you should have the dial indicator and other tools to perform this procedure but just how easy is it without any of those things? Just unbolt a couple of bolts (where located) and move it a hair, take it for a test run, readjust if neccesary? My local Cummins person (owns a 2001 ram) mostly works on bigger rigs and says that the Rotary pump really doesn't need to be adjusted at all, he could probably put the dial on it and see if it is out of whack if I wanted to pay him to do that. If I knew how and what to do, I would probably try it myself even though I don't have all the tools. Move it a slight bit, tighten, go for a ride, try again. The old backyard mechanics version I guess. Would this do any harm as long as I mark the original position? How much does it need to move? Any thoughts would greatly be appreciated. I do have the fuel & smoke turned up so would those need adjusting after the fact of the pump being changed? Thanks.

 

[Harlan]

Tim1=

Went into Reno Tue. and picket up a MTI 2046FE 10mm o. oo1

0-100 gage got it from JLM for 84. 00 and it is a 8mm shank to match my addapter. A little spendy but I have a set of Starrets and have had them for 30 years so this one should last longer than I will.

Tex. question. When we are finding TDC. Peaple say masure

piston when it reaches TDC. I have always used a dieal indicater and market the crank pully at . 050 before TDC and agen at . 050

ATDC and devided in 1/2 and set my TDC right in the midle. I beleave that there is a few crank degreese that the crank cane move befor the piston starts back down.

As for setting pump by trial method, I like to know where I am. I have worked on diesels for 40 years and I would never set up can and Injecter timing with out gages. It might run but would you know where you are? I think not. Just my 2.

Harlan

 

[Tim1]

Harlan, the DI that I got is a MTI 2046F which is the same as yours I think. Hey, does your extension thread into your spindle easily. Mine is a little tight. Just to update, Harlan, they had a extension that was exactly the same length as what we got from Sircam except that you could screw the contact point into it. It was 18. 00. I'm in agreement with you about wanting to know what I'm doing so I can feel comfortable about my changes. Yes, you can fiddle with the pump and try and adjust and keep doing that, but for about 90. 00 you can tool up and time it by the book! Will try and time this weekend, not sure, been busy. If you get yours done, please post. Thanks Tim

 

[Harlan]

Tim1= Wont gety mine finished for a few weeks. I have a heavy equipment repair co. and I will have to work this week end to get a track hoe back on the job for Mon. morning. My next will be a set of big injecters so I can turn my pump back down. What are you using and how are they working out. By the way I just changed tires from 305-75-16 back to 235=85=16 and was suprised to find my mileage go up 3 1/2 mpg.

Harlan

 

[Tim1]

Harlan, I'm running the Lucas prince of darkness I got from Piers. They are awsome, 50 horsepower to the rear wheels and they work. I didn't however turn the pump back down. From what I understand from powerwagon, it doesn't hurt the pump to be turned up when you put in the larger injectors because they flow more volumn of fuel, not more pressure. Not I may be mistaken, and if I am, please feel free to jump in powerwagon. It seems that I do these projects in stages as I have the money, Would be nice to disassemble everything at one time and be done! Oh well, I'll be tearing down again Saturday. Love those track hoes. Tim

 

[KEENO]

TDC

Hey Gang!



Just jumping in here... . Awsome posting!



When my timing was set by Ted @ JRE using a dial indicator and the 'spill port' method... . TDC was accurately found by use of a special tool that Ted had from Miller or Cummins.



What this tool did was depress the intake valve on the #1 piston (over coming the valve spring pressure). Another dial indictor was placed on the valve stem using a dial indicator mount. The engine was then rolled over until the piston made contact w/ the manually depressed intake valve. The upward movement of the piston/intake valve was observed on the dial indictor until TDC is reached.



I know it sounds like an eloborate procedure but it appeared simple in use.



KEENO

 

[Harlan]

Timing

Just an update. the tool I use for finding top dead center is the same as discribed above except I remove the valve spring and valve seal.

If you are worryed about droping the valve use a close pin on the stem. TDC with the pin is 2 and 1/2 deegreas retarded. So marked my crank dampener at TDC. Also for the book- The marks on the dampener for . 050 BTDC to . 050 ATDC are only 1. 700" apart. Also the no piston movement at TDC takes up 1. 70 degrees

of crank movement, Before the piston starts to move. Just for the gear heads here, Should i set my pump timing on the frunt side of TDC or the back side of TDC. I know it is spiting hairs and I should just go with it but ther is a 1. 70 degree Diference.

Tim1. I am going to call Piers Monday and order the Injectors, Is there a # I need or can I just tell him I wont the same as he sent to you. We should get to geather some day. I was a heavy meachanic and mill right for Warhoueser at Alagany, up at Coos Bay till I got starved out and came to Nv.

Harlan

 

[Power Wagon]

harlan... the pin is retained by 2 torx head bolts. Just put in the pin in, loosen the screws, move the engine to true TDC and tighten it back down... viola!!! Instant pin accuracy



well, mostly accurate, anyway.

 

[Tim1]

Hey harlan, the part number on the BD box is 1040171 and the number on the injector itself is 9329. I got these when Piers was still at BD, but i'm sure he has access to them. You will absolutely love these injectors! I may get to Nevada for the Harley drags this year, still a ways off, though. My injectors had the . 093 copper washers on them (included with the injectors). Sounds like your timing project is going smooth, keep us posted. Thanks Tim

 

[Harlan]

Tim 1= got my timing set and new injecters in. Tested and my EGT went out of sight,1350. Also the manifold bost went to38lb. It will brake the tires lose in 3d gear . what is you truck like ? I dont like the heat. I pull a 34' 5r at 14000lb.

How did you come out with your pump timing.

Harlan

 

[Tim1]

Harlan, I have been real busy with a move of a elderly family member into a nursing home and have been totally amased at the amount of work it is. I haven't done my truck yet, it seems that the wifes chevy blazer has been talking to the dodge at night and has become jealous of heated shop. So now its has a spot in there while I fix the emmission control system. My egts are really sensative also and I really have to watch it or the temp will sail also. I haven't towed heavy with it yet, I'll watch what Piers has to say. I'm wondering if the advance in the timing is helping, what did you end up with? Tim

 

[Harlan]

Tim1= I went from 1. 30 to 1. 50 but do not know if this help or hurt, Piers said not to go over 1. 5 so that is where it sits. I may back off my fuil to get the temp under control. Will have to speek with the GuuRuu of the north for some hints. But it will brake the tires lose in 3r and 4th gears as sone as the bust gets over 22 to 25lb. Love the new injecters as you said I wood. Will let you know what Piers said or maybe he will come on the web, so we can all learn.

Harlan

Wife just came into the office to see if I was on an x rated , she said it was to quiet in here. Cant get a way with anything.

 

[Mel Fuelling]

Harlan,

In your signature you refer to "opening up" your hot end housing

to 3. 75". What did it measure before you did that, what were

your guidelines, and what have been the results of this change?



Won't advancing pump timing to a more optimum point lower

egt? (with no other changes)



With stock turbo housing, & PW injectors, fuel increases to

a medium haze @WOT once boost comes up, 26# boost max;

I'm seeing 1150 degrees pre-turbo (truck weighing 8300#). Pyrometer seems accurate at idle when checked with a Raytek infrared gun, but I don't know how accurate it is at max scale.

 

[Harlan]

Mel= The thinking of a machinest fraend was to open up the out side of the hot end as large as the housing will stand, . 125, so as not to build back presser and let the turbo spool up better. also we made up a close radeas elbo clamped to the terbo that was 4' and then from there all the way to the back with mandral bends so we had no restrictions. This droped my EGT about 150 to 200 degrees.

By only advancing the timing, it shoud help EGT. But you must remember my pump was set up to increce my max fuil, and at the same time I put in the big injecters. So now I have more fuil going in and also the terbo makes more pressure, in the end making more power and heat. Now I can turn the max fuil back down and save the pump and still have more Hp.

Under 1500rpm I get a black cloud. When bost start it gets lighter and by 2000 to 2200 it is a haze but my bost is at 36 to 38lb and the EGT is going right threw 1350 and still climing. I got out of ther real quick. Tryed this two times and gave up. In 3rd and 4th it will brake the tires lose. Will contack Piers monday with this up date.

Harlan