Pump diagram for 855 cummins - TheDieselGarage.com
TheDieselGarage.com
 

Home Forum Who's Online Today's Posts Vendors Advertise
Go Back   TheDieselGarage.com > Heavy, Medium, Work Trucks and Trailers > Heavy Duty

Thread Details Posted by T Red, this thread has received 10 replies and been viewed 13973 times.

TheDieselGarage.com is the premier Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
Old 04-09-2010, 10:19 PM   #1
T Red
Junior Member
 
Join Date: Apr 2010
Location: Foothills of NC
Posts: 3
Points: 985
Thanks: 0
Thanked 1 Time in 1 Post
Pump diagram for 855 cummins

Does anyone have a diagram for the PT pump? Or is there a place I can download a pump manual?

Thanks,
Tim
T Red is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-10-2010, 04:35 PM   #2
379Longhood
Senior Member
 
379Longhood's Avatar
 
Join Date: Oct 2009
Location: Alberta t0m0r0
Posts: 2,327
Points: 53,874
Thanks: 179
Thanked 588 Times in 441 Posts
Bump , if you have no luck on this forum try http://www.heavyequipmentforums.com/...splay.php?f=28
there is a guy on that one that has some old cummins books
__________________
Canadian Club member 27
'88 379 exhd 3406C 15 40s 10 pete unimounts
'93 K3500 6.5 4L80 4" exh
'62 gmc shortbox 454 super t10 big brakes
JD 820 black dash
12V92 waitin' for a truck (mega ratrod)
pettibone s20 3306 pc
379Longhood is offline   Reply With Quote
Old 04-11-2010, 02:17 AM   #3
pichu2
Junior Member
 
pichu2's Avatar
 
Join Date: Feb 2010
Posts: 461
Points: 37,418
Thanks: 194
Thanked 76 Times in 64 Posts
I have some Diagrams, but they are old. I was looking for them as well, and i found it in a library in my city and they didn't let me check out the book. I copied them, if you send me a fax number or i can scan them and then email it to you. I don't know if you'll need them because the pump is old and its a PT.
pichu2 is offline   Reply With Quote
Old 04-11-2010, 03:37 PM   #4
itali83
Diesel Dubbah
 
itali83's Avatar
 
Join Date: Nov 2009
Location: Maine
Posts: 67
Points: 22,817
Thanks: 3
Thanked 7 Times in 7 Posts
What do you want to know, they are pretty simple, I just resealed one last week and was surprised at how little was in there.
__________________
'87 Autocar ATF 3406B 8LL 4:11's and tall rubber
itali83 is offline   Reply With Quote
Old 04-11-2010, 04:29 PM   #5
domniman2002
PB SHOP FOREMAN
 
domniman2002's Avatar
 
Join Date: Aug 2009
Location: NASHVILLE
Posts: 97
Points: 19,151
Thanks: 0
Thanked 13 Times in 11 Posts
they are pretty simple....like ital said. what exactly are you looking for?
__________________
SHOP FOREMAN FOR PETERBILT IN THE GREAT STATE OF TENNESSEE.....28YRS JOURNEYMAN TECH
domniman2002 is offline   Reply With Quote
Old 04-11-2010, 06:12 PM   #6
T Red
Junior Member
Threadstarter
 
Join Date: Apr 2010
Location: Foothills of NC
Posts: 3
Points: 985
Thanks: 0
Thanked 1 Time in 1 Post
This is on a 1979 290.

I really just like to know how things work. So it's not imperative that I find a diagram. I have an old diagram from probably the 60's.

When I'm accelerating through the gears at a certain rpm and load I guess the boost from the turbo signals the pump to pump more fuel. The increase in power is very noticeable. I'm just curious whats going on. It would be nice to have the boost a little sooner.
T Red is offline   Reply With Quote
Old 04-11-2010, 11:04 PM   #7
itali83
Diesel Dubbah
 
itali83's Avatar
 
Join Date: Nov 2009
Location: Maine
Posts: 67
Points: 22,817
Thanks: 3
Thanked 7 Times in 7 Posts
Thats the AFC valve doing it's thing, holding back fuel until it sees boost to burn it cleanly. Pry the tin cover thats behind the throttle arm off, there is a screw that stares you in the face, back the lock nut off and screw it in some, try it. That'll give you better throttle responce.
__________________
'87 Autocar ATF 3406B 8LL 4:11's and tall rubber
itali83 is offline   Reply With Quote
Old 04-12-2010, 01:24 AM   #8
french277
Euro Sparky/ Wrencher
 
french277's Avatar
 
Join Date: Dec 2008
Location: NE Wisconsin / Paris France
Posts: 1,065
Points: 27,977
Thanks: 254
Thanked 167 Times in 140 Posts
Ici l'image de la pompe de PT ressemble


here the image of the PT pump look like




Merci,Marc
__________________
Pas de problème,il marche n'est-ce pas?"(No problem, it works doesn't it?)
french277 is offline   Reply With Quote
Old 04-12-2010, 02:43 AM   #9
T Red
Junior Member
Threadstarter
 
Join Date: Apr 2010
Location: Foothills of NC
Posts: 3
Points: 985
Thanks: 0
Thanked 1 Time in 1 Post
Imagine my surprise to see the one and only French Electrician on the diesel forum. I don't post much (as SmithBuilt) but have seen your posts over on the MH forum.

Thanks for the diagram. It appears that pump does not have the AFC.



Thanks itali83 I will try that.

Tim
T Red is offline   Reply With Quote
The Following User Says Thank You to T Red For this addition to TDG:
french277 (04-12-2010)
Old 04-12-2010, 02:57 AM   #10
french277
Euro Sparky/ Wrencher
 
french277's Avatar
 
Join Date: Dec 2008
Location: NE Wisconsin / Paris France
Posts: 1,065
Points: 27,977
Thanks: 254
Thanked 167 Times in 140 Posts
Quote:
Originally Posted by T Red View Post
Imagine my surprise to see the one and only French Electrician on the diesel forum. I don't post much (as SmithBuilt) but have seen your posts over on the MH forum.

Thanks for the diagram. It appears that pump does not have the AFC.



Thanks itali83 I will try that.

Tim
Ouaip., vous l'avez obtenu corrects c'est le seul vrai Électricien français et je travaille vraiment sur un peu de plus grand moteur diesel plus commun trouvé sur des plus grandes unités de générateur.

Par la voie le diagramme j'ai posté ici il n'y avait pas AFC ainsi la valve AFC sera trouvée entre la valve coupée et le corps de pompe cependant il y a quelques modèles qui ont l'AFC sera sur la couverture ronde où Max et la vis de vitesse inoccupée seront placés aussi.

Yep., you got it correct it is the only true French Electrician and I do work on a bit of larger diesel engine more common found on larger generator units.

by the way the diagram I posted here it did not have AFC on it so the AFC valve will be found between the shut off valve and the pump body however there are some models that have the AFC will be on the round cover where the max and idle speed screw will be located as well.

Merci,Marc
__________________
Pas de problème,il marche n'est-ce pas?"(No problem, it works doesn't it?)
french277 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
1988 3406b Injector pump diagram rharveysr Heavy Duty 7 01-10-2010 02:55 AM
new guy needs serpentine diagram for 5.9 cummins georgechekay Introductions 2 11-18-2007 04:34 PM
'95 12v Cummins p-pump Fordpowrstroke7 Whats Been Sold 6 09-26-2007 08:38 PM
1st Gen Cummins wiring diagram 01duramax6spd Whats Been Sold 0 02-13-2007 05:01 PM
P-pump diagram Timbeaux38 5.9L Cummins 12 Valve (1994-1998.5) 18 06-23-2006 05:11 AM

New To Site? Need Help? TDG Specials

All times are GMT. The time now is 12:34 PM.



Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
DTO Garage vBulletin Plugins by Drive Thru Online, Inc.
vB.Sponsors
vBCredits v1.4 Copyright ©2007 - 2008, PixelFX Studios