Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-09-2003, 08:28 PM
coachgeo's Avatar
Registered User
 
Join Date: Jan 2003
Location: TX between Dallas and OK
Posts: 1,793
GOOD-->news<--BAD (leaking IP, 617 952)

ok..... GOOD news.. I have reworked the throttle linkage on the beasty Unimog and now have about about 1/4" between the linkage end and the throttle stop on the back of the IP. Considering I use to have about 3/4 to 1 inch thats good. My Boost Gauge seems to indicate I've done something cause now bounces around at about 0.6 at top throttle where it use to bounce around 0.55

BAD news... as I drove it with the dog house off I discovered the furthest forward injector line on the top of the IP is still leaking. I thought I had fixed this with a little extra ugg on the top 17mm nut with a wrench a month or so ago. Welll..... it still seeping out there at speed. Originally my wrench would not tighten it further cause of the dog house was in the way. Same with the 15mm below it. I bought a crows foot wrench and was able to tighten the 17mm more... it still seeps though not as much... It is seeping below the 15mm though. I still cant tighten that one anymore cause of dog house, but boy it sure seems tight anyway. Then again the top one did too when I first tightened it.
I'll try to buy a socket 15mm crows foot to see if I can get to the lower one that way.
Do I have to pull the IP to fix this? You wont BELIEVE how hard that is going to be... I possibly will have to remove my whole truck cab to get the IP off this MB engine.

I have recently discovered a new method for removing this engine which takes some body alterations but I can't yet afford that either... I'm unemployed

agggggg.... Please give me good news.

oh..... and how does this affect performance? or does it? I'm just wondering if thats why I seem to have less performance than others that have done this same conversion into their Unimog.
__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro


The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels
Reply With Quote
  #2  
Old 06-09-2003, 10:52 PM
Registered User
 
Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
A leak at the base is probably the o-ring that seals the fuel chamber. Replace them all, and replace the copper seal in there at the same time. The seal is, I think, UNDERNEATH the pressure valve seat on that pump. The pressure valve is the tiny dodad inside the thing that come off, with a spring on top. Make SURE the spring is on top, and the pressure valve is in right way up, or you won't get any fuel injected on that cylinder!

A socket will fit over the pressure valve holder after you remove the lines.

Also, check the linkage to make sure the rod that goes over the engine is adjusted correctly. On my brother's 300D, we discovered that there is a slip joint in it, and that we had set it wrong, so that he only had about 1/3 total throttle. Preformance increased considerably when I fixed the length corretly. Still not full, since the bushings on the firewall are missing, allowing the linkage to go sideways rather than rotate.

Peter
__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
Reply With Quote
  #3  
Old 06-09-2003, 11:04 PM
coachgeo's Avatar
Registered User
 
Join Date: Jan 2003
Location: TX between Dallas and OK
Posts: 1,793
Quote:
Originally posted by psfred
A leak at the base is probably the o-ring that seals the fuel chamber. Replace them all, and replace the copper seal in there at the same time. The seal is, I think, UNDERNEATH the pressure valve seat on that pump. The pressure valve is the tiny dodad inside the thing that come off, with a spring on top. Make SURE the spring is on top, and the pressure valve is in right way up, or you won't get any fuel injected on that cylinder!

A socket will fit over the pressure valve holder after you remove the lines.

Also, check the linkage ...
Peter
YESSSSSSs.... I'll look into the O rings. Should I just call a IP shop or MB to get these?

As to linkage.... Conceptually what your saying is what I did all day. I swapped some rods of a junker, bent and tweaked and shortened,lenghend and slightly rearranged what was there till I had more range of motion on the back of the IP.

Overall this linkage it seems, the arms and ball sockets and levers were used off an MB car, along with some home made stuff which looks to me to be made of things off a Unimog. It is installed in a totaly different way than a car. Also. there is no smog stuff, no nothing being opperated off the linkage but the workings on the back of the IP.
__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro


The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels
Reply With Quote
  #4  
Old 06-09-2003, 11:33 PM
Stevo's Avatar
Registered User
 
Join Date: Apr 2002
Location: NW WA
Posts: 6,286
I replaced the copper sealing ring when the #1 ,what ever its called, 15 mm delivery valve housing, was leaking at the base. actually I did them all. A cheap and easy fix. Get a couple extra as I had to re do one of them. There was some crud in there causing it not to seal which I did not see the first time.
__________________

1985 Euro 300TD 5 spd 220K
1985 Euro 240D 5 spd 130K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"
Reply With Quote
  #5  
Old 06-09-2003, 11:48 PM
coachgeo's Avatar
Registered User
 
Join Date: Jan 2003
Location: TX between Dallas and OK
Posts: 1,793
thanks for the suggestion Stevo

Again...... whar in carnation do I get these things?
__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro


The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels
Reply With Quote
  #6  
Old 06-10-2003, 12:06 AM
Registered User
 
Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
They are available at any MB parts store, here on FastLane, or at a dealer. Pretty cheap, the entire set for my 87 300D was $8 and some change.

Peter
__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
Reply With Quote
  #7  
Old 06-10-2003, 12:13 AM
coachgeo's Avatar
Registered User
 
Join Date: Jan 2003
Location: TX between Dallas and OK
Posts: 1,793
Yeahhhh... right on...

TANKS.

I would prefer to order from here in return for the good tech, but this time Im in a hurry and MB is only 30 or so minutes away.


Question??? would this leak effect my performance. Still trying to decipher all why I seem to have less power than the others that have done this conversion. Also see my EGR thread.

THANKS folk!!!!
__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro


The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels
Reply With Quote
  #8  
Old 06-10-2003, 11:58 AM
coachgeo's Avatar
Registered User
 
Join Date: Jan 2003
Location: TX between Dallas and OK
Posts: 1,793
Just called the Ford/MB dealer.....

so who's wrong..... Dealer say there is nothing on top of the 84 era 5cyl turbo D IP to prevent leaking fuel but the compression fittings on the tubes to the injectors.

No brass bushings, no O rings.....

grrrrrrrrrr......

anyone got part numbers
__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro


The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels
Reply With Quote
  #9  
Old 06-10-2003, 01:28 PM
coachgeo's Avatar
Registered User
 
Join Date: Jan 2003
Location: TX between Dallas and OK
Posts: 1,793
ordered from Fastlane. My MB dealer is lost in space.
__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro


The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels
Reply With Quote
Reply

Bookmarks

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 04:21 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page