Pump Advance - 2001 Pajero 3.2 Di-D - Feedback




Page 1 of 2 1 2 LastLast
Results 1 to 20 of 21
  1. #1
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

    Exclamation Pump Advance - 2001 Pajero 3.2 Di-D - Feedback

    So with the huge fuel increase tomorrow I made some time and got to work on advancing my diesel pump to try and get my consumption down from about 14l/100km.

    I have eliminated all other aspects of the car. Compression test checked out fine, EGR delete, almost Freeflow exhaust, intake cleaned, throttle body cleaned, boost checks out, tyre pressures, alignment etc.

    This will be my feedback as of today whether it gives better economy or not.

    I made a mark on the pump by one of the 3 holding bolts and turned the top of the pump towards the engine to advance. My mark moved about 3mm-4mm. It is currently at the most advanced spot. It can't go any further anyway due to the pump slots not allowing any further movement.

    It now starts with one swing less and my smoky idle is now completely gone, where it sometimes would just have the faintest trace of some smoke out the back. A blip of the throttle also doesn't produce an instant smoke plume now like it used to. The exhaust doesn't burn my eyes as much as it used to when bending close to it as well.

    It sounds more agricultural (like the isuzu 280DT but not as harsh - actually a beautiful diesel sound) and to my ear identical to the other pajeros I hear in town.

    I took it for a short spin and the tail wagged sideways on one of my favourite gravel bends in second gear 2H, where it used to stick in 1st 2H. Not bad considering it's an auto.

    The tank is now empty and I'll fill up tonight.

    To today's date my consumption on the car is 14.1l/100km stretching over nearly 17'000km of logged economy on fuelly.
    You can track my progress on fuelly
    http://www.fuelly.com/driver/4epikanini/pajero

    And this is my current consumption that will change over time if this pump advance has helped me.

  2. #2
    Join Date
    Nov 2011
    Location
    Pretoria
    Age
    36
    Posts
    250
    Thanked: 0

    Default

    Marius,

    Why don't you come visit someone her in Gauteng over the weekend so we can get a quick response.....lol

    Wont this damage the engine if it is to much advanced?



    Sent from my GT-I9100 using Tapatalk

  3. #3
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

    Default

    Quote Originally Posted by Nismo View Post
    Marius,
    Why don't you come visit someone her in Gauteng over the weekend so we can get a quick response.....lol
    Wont this damage the engine if it is to much advanced?
    Sent from my GT-I9100 using Tapatalk
    I have to stay and guard the farm over the April long weekends but if I get a sponsor for diesel I'll take leave and make a long weekend early May & drive up to see you guys. Maybe even sacrifice a day and see if I can help with some services or repairs etc.

    I'm trying to plan a weekend to my boet in Garsfontein sometime anyway.

  4. #4
    Join Date
    Nov 2011
    Location
    Pretoria
    Age
    36
    Posts
    250
    Thanked: 0

    Default

    Thats good let me know, I'm also staying in Garsfontein!


    Sent from my GT-I9100 using Tapatalk

  5. #5
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

  6. #6
    Join Date
    Aug 2008
    Location
    Pretoria
    Age
    40
    Posts
    1,286
    Thanked: 1

    Default

    You need to be very careful when advancing the pump timing on a diesel. Advancing the timing causes a drastic rise in chamber pressure and can lead to blown gaskets. The timing needs to be set with the correct tools to the manufacturers specs. Advancing 4mm is a lot on a diesel, it can easily be 8-10 degrees difference.

    Advanced timing leads to higher pressures and lower EGT's,lower boosts and also more turbo lag.
    Retarded timing leads to lower presures, higher EGT's, higher boosts and less turbo lag.

  7. #7
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

    Default

    I am aware of the risks but due to the Di-D being a low compression diesel (17:1) the risks are significantly lower. The inherent slower burn of diesel and strong construction of a diesel engine also lowers the risk. I am willing to chance this to achieve acceptable fuel economy.

    The local diesel specialist also suggested (after I discussed my symptoms and economy with him) I advance it as it compensates for wear in the pump (it has done nearly 296'000km) so the extra advance may bring it up to spec.

    Too much advance causes ping in a diesel just like a petrol but in a diesel it sounds much worse, almost like you threw a bag of bolts into the intake.

    After months of eliminating all other possible solutions and research I'm confident this may sort out my economy for the better.

  8. #8
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

    Default

    Drove on the highway just now. It pulls very very strong now.

    Filled up so will report back.

    Torque converter stays locked up for longer as well

  9. #9
    Join Date
    Nov 2011
    Location
    Pretoria
    Age
    36
    Posts
    250
    Thanked: 0

    Default

    Thats good news, you will have to make turn here when you in PTA.... LOL

    Sent from my GT-I9100 using Tapatalk

  10. #10
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

    Default

    This is my current fuel status

    332km

    It includes a day of offroad fun (see the East London event thread).

    It may have made a small difference but not much. My fuelly will tell over time. I am however going to delete the big center silencer box month end as well in my pursuit of 10l/100km.

    Sent via iPad & Forum Runner
    Attached Images Attached Images  

  11. #11
    Join Date
    Sep 2006
    Location
    De Kelders
    Age
    72
    Posts
    4,299
    Thanked: 61

    Default

    Quote Originally Posted by MariusFourie View Post
    This is my current fuel status
    332km
    It includes a day of offroad fun (see the East London event thread).
    It may have made a small difference but not much. My fuelly will tell over time. I am however going to delete the big center silencer box month end as well in my pursuit of 10l/100km.
    Sent via iPad & Forum Runner
    Still hard to believe. I get the same on my Pajero.
    Andre Botha
    2006 Pajero 3.8 GLS LWB, Gomad bash plates. Monroe Adventure shocks.

  12. #12
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

    Default

    My gauge is now at the blue line after 520km (includes a bit of off roading), where it used to be at the red line after 520km.

    Time will tell with the next fill up what difference it has made.

    On top of that the center silencer box is getting the boot soon and the air filter is also due.

    Attached Images Attached Images  

  13. #13
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

  14. #14
    Join Date
    Jan 2008
    Location
    Bethlehem
    Age
    34
    Posts
    4,619
    Thanked: 2

    Default

    Does the 2001 D-iD not have an electronic pump? Shouldn''t it set itself?
    Christo Davids
    Land Cruiser 105 4500 EFI

  15. #15
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

    Default

    Some parts are electronic but it can be advanced/retarded.

    Just like some FI petrol cars are electronically controlled but the dizzy can be adjusted.

  16. #16
    Join Date
    Nov 2011
    Location
    Pretoria
    Age
    36
    Posts
    250
    Thanked: 0

    Default

    So Marius, what's the latest on the pump advance?

    Sent from my GT-I9100 using Tapatalk 2

  17. #17
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

    Default

    haven't done enough miles to know for sure. It seems to have made a difference but how much I can't say yet.

    I serviced the starter the other day so the trip computer reset. I haven't filled up since then so can't track mileage.

    Will definitely report back once I have a good indication of what it has done. You can also keep an eye on my fuelly if necessary.

  18. #18
    Join Date
    Aug 2008
    Location
    Pretoria
    Age
    40
    Posts
    1,286
    Thanked: 1

    Default

    Hi Marius, any updated fuel consumption figures after you advanced the timing?

  19. #19
    Join Date
    Dec 2011
    Location
    East London
    Age
    32
    Posts
    13,972
    Thanked: 529

    Default

    Quote Originally Posted by Scorpio Turbo View Post
    Hi Marius, any updated fuel consumption figures after you advanced the timing?
    It didn't do much to the consumption but the power was up.

    I recently increased the A/T line pressure and that made about a 0.7l/100km saving.

    I have now

    - removed intake swirly thing
    - serviced all fluids and filters
    - cleaned intank diesel filter
    - greased all UJs
    - advanced the pump
    - delete EGR
    - installed long length bashplate for airflow
    - delete CAT
    - Fit freeflow instead of big center silencer box
    - Manual torque converter lock up override switch - I sell them on Pajeroclub.co.za
    - double checked wheel alignment and pressures
    - turned up the boost with the wastegate spacer mod
    - serviced injectors

    I can't think of anything else and all this so far has upped the performance of the car but made very little difference to the economy.

    I have called it quits and I am now living with the economy until I can find a good condition Touareg R5 or V6 TDi in my budget or get a Chip-It chip from Australia with Map intrervention. (I have driven a Gen4 GLX Auto recently and I was a bit dissappointed with the performance and noise - mine is quieter and pulls stronger - see video below )

    Towed it low range 1st gear with rear diff lock. I reckon it was a 5ton pull at least (The tractor alone weighs over 2 tons - Note the heavy trailer with full load of gravel.


  20. #20
    Join Date
    Dec 2010
    Location
    Buccleuch
    Age
    48
    Posts
    791
    Thanked: 6

    Default

    Ok I know this is OT.

    Note the tractor. Part on the name is.......

    LANDY ( If you'll allow the small spelling mistake)
    Fred
    2005 Colt (Ex) had a few mods
    1999 Colt 2.8TDi DC (Now) Now with Stofpad bashplate ...(Motor she's in.. Let the other work carry on...)
    http://www.hotfrog.co.za/Companies/F...Handy-Handyman

Page 1 of 2 1 2 LastLast

Similar Threads

  1. Part catalogs & other useful info
    By charlatan in forum Jeep
    Replies: 92
    Last Post: 2017/04/15, 11:31 AM
  2. Grand Cherokee Error code
    By Nick47 in forum Jeep
    Replies: 4
    Last Post: 2010/08/30, 01:28 PM
  3. Pajero 3.2 fuel consumption when towing
    By Stormboy_sa in forum Mitsubishi
    Replies: 20
    Last Post: 2009/12/12, 08:17 AM
  4. Pajero 3.2 DID
    By woodyzn in forum Mitsubishi
    Replies: 9
    Last Post: 2009/07/28, 09:13 AM
  5. extension of Pajero maintenance plan 3.2 did swb
    By zoobie in forum Mitsubishi
    Replies: 3
    Last Post: 2008/06/05, 09:42 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •