Put p7100 on 24v this weekend

All of 'em

Moderators: Greenleaf, BC847, Richie O, MUDDY

Put p7100 on 24v this weekend

Postby Fnschlaud4620 » Sun Oct 21, 2007 9:10 am

Well, this weekend me and my friend installed a 175hp p-pump on his 24v cummins that we put in his superduty. We tried and tried to make it run with the factory ecm but we never had any luck.

After doing a lot of research we decided to pull the cam to swap the housings and man it worked great! 1/2'' wooden dowel with a 1''cross cut with a band saw into the the end held the lifters so tight you had to use 2 hands to remove them. Man that cam is heavy! I think I will have to make a handle if I ever to do it again.

I have never timed a p-pump engine before, to make matters worse
the pumps locking pin was broken off! So we centered it in the window and called it good. installed it on the truck. The engine was at TDC and I figured the pump was close to 12.5* I have read that they run a little better with some timing so we counted 36 teeth on the crankshaft the so 10* per tooth. I backed the engine up 5* and torqued the pump gear I hope I am somewhere in the 16-19 on timing, we will see.

If not I am sure you on here will enlighten me so I can redo it.

Thanks
Fnschlaud4620
1998 GMC K3500 180,000 1st gen Cummins H1E/HT60 twins PPE 435 injectors 5" exhaust 4l80e
Truck Pics: http://www.cummins-conversion.com/photo ... ppuser=556

http://s283.photobucket.com/albums/kk300/Fnschlaud4620/
User avatar
Fnschlaud4620
fuel screw!!!!
 
Posts: 209
Joined: Sun Jan 14, 2007 1:29 pm
Location: North Branch, MI

Postby PToombs » Sun Oct 21, 2007 1:52 pm

What's the ECM got to do with the P-pump you put in? Then why would you change the cam? They are all unrelated, unless I missed something? :?
pete

Just enough power to break everything behind the crankshaft.
User avatar
PToombs
14mm rotor
 
Posts: 11367
Joined: Sun Jan 07, 2007 6:13 pm
Location: Syracuse NY. Snow central!

Postby Fnschlaud4620 » Sun Oct 21, 2007 2:00 pm

We put this engine into a Ford superduty, with the VP44 and factory ECM, there were computers that were missing and we could not get the engine to start with the vp44 so we changed from the vp44 to a p7100. This involves changing the front housing that holds the injection pump. In order to change the housing the cam gear must be removed in order to get to the bolts to change the housing and remove it. You only need to remove the cam gear but, it is pressed on and we did not have a puller to remove it. So we pulled the entire cam using the hold the lifters up method. Changed the housing then reinstalled the same cam. Sorry I was not clear.

I just dont know if I have it timed close enough or not.

Fnschlaud4620
1998 GMC K3500 180,000 1st gen Cummins H1E/HT60 twins PPE 435 injectors 5" exhaust 4l80e
Truck Pics: http://www.cummins-conversion.com/photo ... ppuser=556

http://s283.photobucket.com/albums/kk300/Fnschlaud4620/
User avatar
Fnschlaud4620
fuel screw!!!!
 
Posts: 209
Joined: Sun Jan 14, 2007 1:29 pm
Location: North Branch, MI
Top

Postby PToombs » Sun Oct 21, 2007 2:16 pm

AAAhhhhh! :idea: I got it! It sounded like it wouldn't start with the P-pump because of the computer, so you changed the cam. Now it makes sense!
If the pin is broken in the p-pump, it's easy to time. Remove the cover and lock pin, turn the engine over and watch in the hole. There is a flat horizontal tab the pin locks to. This is TDC on the pump.
Line up the cam/ TDC pin on the housing and good to go.
pete

Just enough power to break everything behind the crankshaft.
User avatar
PToombs
14mm rotor
 
Posts: 11367
Joined: Sun Jan 07, 2007 6:13 pm
Location: Syracuse NY. Snow central!
Top

Postby Fnschlaud4620 » Mon Oct 22, 2007 10:36 am

Right, that is what I did I lined up the flat tab in the window and centered it.

With the crankshaft at TDC and the tab centered in the window of the pump it should be at around 12.5* right? I Am not sure like I said I have never done this before.

So then to try to advance the timing I left the pump tab centered in the window and backed the crankshaft up roughly 5* then torqued down the nut on the pump gear.
1998 GMC K3500 180,000 1st gen Cummins H1E/HT60 twins PPE 435 injectors 5" exhaust 4l80e
Truck Pics: http://www.cummins-conversion.com/photo ... ppuser=556

http://s283.photobucket.com/albums/kk300/Fnschlaud4620/
User avatar
Fnschlaud4620
fuel screw!!!!
 
Posts: 209
Joined: Sun Jan 14, 2007 1:29 pm
Location: North Branch, MI
Top

Postby KTA » Mon Oct 22, 2007 2:15 pm

You should be close enough at least to get it to run. You can always see how it is after you get it fired if it needs more timing or less.
Fleet of Junk: 1989 D350 627rwhp 1300 tq B-1/Hx60 twins, KTA pump/injectors, ported head, BIG fuel supply. 13.75@ 109.5mph 1/4: 1992 W350 Cab-chasis, 1993 W350 ext cab cust.370 inj Hx40/16cm 290rwhp hydroboost brakes,1984 D350 crew-cab another project.
User avatar
KTA
diesel guru/mod
 
Posts: 1855
Joined: Thu Jan 04, 2007 2:23 pm
Location: Shelby County, Ky
Top

Postby 89silverbullet » Thu Mar 26, 2009 11:39 pm

fuel plate #100 or just throw it away! dont forget the starwheel fun
1989 d250 muffler delete diaphram turned, fuel screw turned, the lowes special intake
User avatar
89silverbullet
fuel screw!!!!
 
Posts: 130
Joined: Sat Apr 19, 2008 4:51 pm
Location: san antonio, TX
Top


Return to Other diesels

Who is online

Users browsing this forum: No registered users and 6 guests

cron