Wanderlodge Owners Group  
BuyByeBlueBird.com
WOG Gear

Go Back   Wanderlodge Owners Group > Mechanic's Corner > Engine

Engine Discussion of preventative/corrective maintenance and other technical issues regarding your coach's engine.

Site Search:
Reply
 
Thread Tools
  #1  
Old 07-09-2010
gcyeaw's Avatar
gcyeaw gcyeaw is offline
Gardner
 
Join Date: Dec 2007
Location: Ridgewood
Posts: 8,539
Default Injection Pump leak

I powdered the area around and including the pump and went for a 15 minute drive. I found fuel only in the valley on the left side. I have a home quality tool with camera on a flexable shaft and I can see fuel trickling down from the area below the left rear bolt tab. From diagrams I have found there are two O rings in that area. What is the purpose of the ports that the O rings seal?

The fuel was trickling for a while after shutting the engine down, and that confuses me. Where is it coming from? Why doesn't it result in air in the system? The motor runs fine.

I would guess the pump needs to come out to replace the O rings.
__________________
Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
Reply With Quote
  #2  
Old 07-09-2010
Bill Pape's Avatar
Bill Pape Bill Pape is offline
Administrator
 
Join Date: Jan 2008
Location: Commerce
Posts: 10,922
Default

Gaardner,

Yep there are two O rings on the rear housing, One is a drain plug, the other ???, but, Yes the O rings can be replaced with out removing the pump.
__________________
Bill & Patty
1988 FC, Silver Edition
Commerce, Michigan
Reply With Quote
  #3  
Old 07-09-2010
gcyeaw's Avatar
gcyeaw gcyeaw is offline
Gardner
 
Join Date: Dec 2007
Location: Ridgewood
Posts: 8,539
Default

Here is a picture of the O ring location,(arrow 2) is this what you mean bill?
Attached Thumbnails
Click image for larger version

Name:	IMG_5246s (648 x 486).jpg
Views:	429
Size:	68.9 KB
ID:	5792  
__________________
Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
Reply With Quote
  #4  
Old 07-09-2010
gcyeaw's Avatar
gcyeaw gcyeaw is offline
Gardner
 
Join Date: Dec 2007
Location: Ridgewood
Posts: 8,539
Default

I am reading the 3208 service manual over and over trying to work up the nerve to pull and re-install the pump myself. It seems pretty straight forward as long as you put in the pins and they go in as as expected.

From my understanding, with a currently operational engine, if you rotate the engine till the pump timing pin drops in, the engine pin should also go in. This would mean the engine cylinder one is at TDC with both valves closed.

As long as nothing is changed, re-installing the pump should be a piece of cake. I don't plan to try any fancy 2 degree advance, that's out of my league.

The only caveat is clean, clean, clean

Does a CAT delaer sell covers for the injecton ports on the heads and pump? Is there something that can be used as a substitute?

How much will it cost me to fly one of you guys up here if I mess it up
__________________
Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
Reply With Quote
  #5  
Old 07-09-2010
gcyeaw's Avatar
gcyeaw gcyeaw is offline
Gardner
 
Join Date: Dec 2007
Location: Ridgewood
Posts: 8,539
Default

I had a conversation with Rick Shawver and his suggestion is that all I need to do is remove the rear housing and replace the gasket and O rings. That may be the easiest solution and one I could probably handle with some more reading.

Now to get the gaskets and stuff from CAT. So fat I have not been able to read the serial and arangement numbers. I need to try to get that off the old, worn plate.
__________________
Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
Reply With Quote
  #6  
Old 07-09-2010
iamflagman's Avatar
iamflagman iamflagman is offline
(1943-2018) Forum Co-founder/Administrator
 
Join Date: Dec 2007
Location: Hopkins
Posts: 11,506
Default

Quote:
Originally Posted by Bill Pape View Post
Gaardner,

Yep there are two O rings on the rear housing, One is a drain plug, the other ???, but, Yes the O rings can be replaced with out removing the pump.

Quote:
Originally Posted by gcyeaw View Post
I am reading the 3208 service manual over and over trying to work up the nerve to pull and re-install the pump myself. It seems pretty straight forward as long as you put in the pins and they go in as as expected.



Gardner,

Why do you want to pull the pump if you don't need to?
__________________

JOHN FINN
FORUM MODERATOR-ADMINISTRATOR
1982 FC35RB
I'm NO EXPERT, but I did stay in the FINN'S INN EXPRESS last night
HOPKINS, SOUTH CAROLINA
VISIT THE FINN'S INN EXPRESS REMODELING ADVENTURE AND TECH. TIPS
I'M SO SLOW ON THE HILLS,THAT I GET TO SMELL THE FLOWERS AS I GO BY.....AND WATCH THEM GROW TOO!! NOT SO MUCH ANYMORE
Visit the WILD HARE RACING website
REMEMBER 9/11
Reply With Quote
  #7  
Old 07-09-2010
gcyeaw's Avatar
gcyeaw gcyeaw is offline
Gardner
 
Join Date: Dec 2007
Location: Ridgewood
Posts: 8,539
Default

John,
I thought I did need t0 pull the pump, but Rick straightened me out on that. Now I am looking at just pulling the rear housing and replacing the gaskets and O rings.
__________________
Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
Reply With Quote
  #8  
Old 07-09-2010
Rick's Avatar
Rick Rick is offline
Senior Member
 
Join Date: May 2009
Location: Bellefonte
Posts: 12,696
Default

Gardner, The PO had written the arrangement and serial numbers inside the CAT book. Have you looked there? If you can't read yours I'll give you mine. I don't think there can be any difference in gaskets and O rings.
__________________
Rick Shawver
1SG Ret
2000 LX
Vise Grips
Bellefonte, AR
F127656
Reply With Quote
  #9  
Old 07-09-2010
gcyeaw's Avatar
gcyeaw gcyeaw is offline
Gardner
 
Join Date: Dec 2007
Location: Ridgewood
Posts: 8,539
Default

Rick,
I have the numbers from the previous engine, I think, written in the service manual. It is well used so I think it is not the current engine, but it should be close enough. I have a 250 HP installed in 1994, the note says NEW, but I don't know if that really means re-man.
__________________
Gardner Yeaw
86 PT-36 Golden Memories
83FC35 SB $IXTEEN TON$ SOLD
78 FC 33 Happinest (Sold)
Ridgewood, New Jersey
Reply With Quote
  #10  
Old 07-09-2010
Rick's Avatar
Rick Rick is offline
Senior Member
 
Join Date: May 2009
Location: Bellefonte
Posts: 12,696
Default

Perhaps Bill will chime in. His knowledge is much deeper.
__________________
Rick Shawver
1SG Ret
2000 LX
Vise Grips
Bellefonte, AR
F127656
Reply With Quote
Reply

Bookmarks

Thread Tools

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
Cat 3208 Injection Pump Replacement Bill Pape Engine 134 05-27-2017 03:31 PM
3208 injection pump tool Bill Pape Engine 0 06-22-2010 10:48 AM
water pump coolant leak Jim Barone Engine 1 12-31-2008 10:35 PM
Propane injection / mixing? NH Bill General 9 12-08-2008 07:27 PM
Caterpillar Fuel Injection Pump Procedures iamflagman Engine 0 07-12-2008 05:41 AM

Web Search:

All times are GMT -4. The time now is 08:30 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.