Notices
Large Truck My truck is bigger than yours. The forum for 2+ ton trucks (all years), COE's, Louisville's, Big-Job's etc.

PTO L8000 HELP!!

Thread Tools
 
Search this Thread
 
Old Nov 30, 2010 | 08:53 PM
  #1  
aspenboarder's Avatar
aspenboarder
Thread Starter
|
New User
Joined: Dec 2007
Posts: 5
Likes: 0
PTO L8000 HELP!!

I just bought a 1995 L8000 and it has the a front pto hydraulic pump that runs off the harmonic balancer. When I hit the valve to raise the bed i realized there gauge was showing no pressure. I then checked and it was out of hydraulic fluid, I added 30 gallons and still no pressure. Has anyone worked on these? Is there a way to prime the fluid? There is a small allen head bolt on the top and when I removed it I felt a bit of air coming out so it makes me think maybe it is working but just not pulling the fluid out of the tank. Also there is a small leak in the seam of the hose. Anyone have any thoughts? I have tried a web search to no avail. Thanks in advance.
 
Reply
Old Dec 1, 2010 | 09:09 AM
  #2  
cj06's Avatar
cj06
Posting Guru
Joined: Feb 2010
Posts: 2,006
Likes: 2
From: CASA GRANDE AZ
is the pump turning , and what brand of pump is it ? you can add a small amount of air pressure to the tank to help prime and at the same time have that bolt your talking about removed to let the air escape !
 
Reply
Old Dec 1, 2010 | 09:27 PM
  #3  
aspenboarder's Avatar
aspenboarder
Thread Starter
|
New User
Joined: Dec 2007
Posts: 5
Likes: 0
Pump turns.. Have no clue what kind of pump it is.. wish I could find out!
 
Reply
Old Dec 1, 2010 | 09:28 PM
  #4  
ford390gashog's Avatar
ford390gashog
Fleet Owner
20 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Club FTE Gold Member
There should be a pre filter on the line make sure its not clogged.
 
Reply
Old Dec 1, 2010 | 10:21 PM
  #5  
cj06's Avatar
cj06
Posting Guru
Joined: Feb 2010
Posts: 2,006
Likes: 2
From: CASA GRANDE AZ
Originally Posted by ford390gashog
There should be a pre filter on the line make sure its not clogged.
there could be a screen in the hydraulic tank and it would be where the suction line hooks into the tank , if so it would just unscrew !
 
Reply
Old Dec 1, 2010 | 10:24 PM
  #6  
cj06's Avatar
cj06
Posting Guru
Joined: Feb 2010
Posts: 2,006
Likes: 2
From: CASA GRANDE AZ
that small allen bolt on top of the pump , take it out and pour some oil into it till you can't pour any more in then put bolt back and start truck and see what happens !
 
Reply
Old Dec 1, 2010 | 10:30 PM
  #7  
aspenboarder's Avatar
aspenboarder
Thread Starter
|
New User
Joined: Dec 2007
Posts: 5
Likes: 0
Originally Posted by cj06
that small allen bolt on top of the pump , take it out and pour some oil into it till you can't pour any more in then put bolt back and start truck and see what happens !
Started that today but ran out of time and had to get some other things taken care.. Will get back to it tomorrow. Thx Guys.. I will let you know what I find out.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
49fordv8f4
1948 - 1956 F1, F100 & Larger F-Series Trucks
8
Jun 15, 2017 04:48 PM
Philip Saraiva
Large Truck
2
Aug 5, 2016 03:16 PM
Ossiemac
1948 - 1956 F1, F100 & Larger F-Series Trucks
5
Jun 20, 2016 10:00 AM
denfield12
1999 - 2016 Super Duty
2
Oct 16, 2011 07:19 PM
Mary_Kate_Olsen
1978 - 1996 Big Bronco
1
Jan 27, 2003 04:57 PM




All times are GMT -5. The time now is 04:37 AM.

story-0
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-1
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-2
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-3
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-4
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-5
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-6
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-7
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-8
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-9
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE