Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 21

Thread: KLR turbo manifold failure

  1. #11
    p38arover's Avatar
    p38arover is offline Major Part of the Heart and Soul of AULRO Gold Subscriber
    Join Date
    Jan 1970
    Location
    Western Sydney
    Posts
    27,318
    Two turbos in 5,000km sounds like there is some other underlying problem.
    Ron B.
    VK2OTC

    2004 L322 Range Rover Vogue 4.4 V8 Auto
    2007 Yamaha XJR1300
    Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA



    RIP Bucko - Riding on Forever

  2. #12
    Join Date
    Feb 2014
    Location
    Sydney
    Posts
    949
    Sustained very high EGT’s would do that I would have thought.
    Only my opinion.
    Phil B

    Custodian of:
    1974 S3 swb wagon (sold)
    1978 S3 swb canvas
    48 749 '88 4x4 Perentie
    1985 County with 4BD1T

  3. #13
    Join Date
    May 2006
    Location
    Woolgoolga
    Posts
    7,235
    Quote Originally Posted by p38arover View Post
    Two turbos in 5,000km sounds like there is some other underlying problem.
    Underlying issue isn't with the vehicle, this has happened to quite a few 4bd1 folk out there.

  4. #14
    p38arover's Avatar
    p38arover is offline Major Part of the Heart and Soul of AULRO Gold Subscriber
    Join Date
    Jan 1970
    Location
    Western Sydney
    Posts
    27,318
    Quote Originally Posted by Vern View Post
    Underlying issue isn't with the vehicle, this has happened to quite a few 4bd1 folk out there.
    You have proof of this?
    Ron B.
    VK2OTC

    2004 L322 Range Rover Vogue 4.4 V8 Auto
    2007 Yamaha XJR1300
    Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA



    RIP Bucko - Riding on Forever

  5. #15
    Join Date
    May 2006
    Location
    Woolgoolga
    Posts
    7,235
    Quote Originally Posted by p38arover View Post
    You have proof of this?
    Quite a few different people have bought this up on the Facebook pages. Feel free to go and have a search. From cracked manifolds, dead turbos, and cracked exhausts.

  6. #16
    Join Date
    Feb 2014
    Location
    Sydney
    Posts
    949

    KLR turbo manifold failure

    Could this just be a case of owners chasing “just that little bit” more power by unscrewing the fuel screw causing excessive EGT’s, burning turbos and doing other damage?
    The trouble with the Isuzu is that it is too easy to increase the fuel and do damage with just one spanner if you don’t monitor EGT’s.
    KLR cannot control this “tweaking”.
    The Garrett is a good quality turbo used on millions of engines. Why else would they now be failing in such allegedly large numbers?

    Shout at me if you like but it is a fact that consumers are often to blame for “faulty” goods they buy, and not only turbos.
    I have no ties to KLR other than they have always done the right thing to me. And yes I do have a KLR turbo kit which has performed faultlessly for over 30k km since new when I put it on. There again I run a conservative tune and watch my EGT’s like a hawk.

    My opinion only.
    Phil B

    Custodian of:
    1974 S3 swb wagon (sold)
    1978 S3 swb canvas
    48 749 '88 4x4 Perentie
    1985 County with 4BD1T

  7. #17
    Join Date
    May 2006
    Location
    Woolgoolga
    Posts
    7,235
    I don't have the fuel screw in my T motor at all, my egt's don't get high enough to cause damage. One would think the high egt's would damage the motor before the turbo let alone the manifold.
    Mine is intercooled though, but I do remember talking to brad ages ago and they concluded they didn't need intercooling. I also remember trying this with rovercare years ago and found the same. Guessing that also all depends on how you load up the vehicle.

  8. #18
    Join Date
    Oct 2011
    Location
    Burra NSW
    Posts
    819
    Quote Originally Posted by Phil B View Post
    Could this just be a case of owners chasing “just that little bit” more power by unscrewing the fuel screw causing excessive EGT’s, burning turbos and doing other damage?
    The trouble with the Isuzu is that it is too easy to increase the fuel and do damage with just one spanner if you don’t monitor EGT’s.
    KLR cannot control this “tweaking”.
    The Garrett is a good quality turbo used on millions of engines. Why else would they now be failing in such allegedly large numbers?

    Shout at me if you like but it is a fact that consumers are often to blame for “faulty” goods they buy, and not only turbos.
    I have no ties to KLR other than they have always done the right thing to me. And yes I do have a KLR turbo kit which has performed faultlessly for over 30k km since new when I put it on. There again I run a conservative tune and watch my EGT’s like a hawk.

    My opinion only.
    The first turbo cooked itself from overspinning. We couldn't keep the flexible intake hoses on the unit, KLR were good and after the unit was sent away to be inspected, they supplied us with a new turbo. Everything was checked and double checked in the installation which was carried out by a LandRover specialist. Every measurement and adjustment was recorded and double checked against KLRs specs. We are not new in how to run a Diesel engine with respect to EGT and running them for reliability when they are working hard..this kit is simply not up to the task.
    Yes, we are trying to get some more power out of the 6x6..thats what the kit is marketed as, if its not up to it then back to the drawing board. Im just lucky that I had a backup ute that could carry all the equipment for the 3 months that this has gone on for.

  9. #19
    Join Date
    Feb 2014
    Location
    Sydney
    Posts
    949
    Vern
    I know you personally monitor EGT’s. You have said so in previous posts. I am saying that possibly others don’t. Many don’t even have EGT gauges.
    I am in no way an expert but in my simple mind if the exhaust gases are overheated (say 750 deg plus) the first things they would heat up are the manifold and turbo which is possibly why they are failing if this condition is sustained over and over again.
    Yes the engine would also fail eventually but maybe the manifold and turbo are acting as a “weakest link” in the chain?
    I don’t profess to know enough about this to say that it is the problem but it is certainly a possibility IMO.
    Regards,
    Phil B

    Custodian of:
    1974 S3 swb wagon (sold)
    1978 S3 swb canvas
    48 749 '88 4x4 Perentie
    1985 County with 4BD1T

  10. #20
    Join Date
    Feb 2014
    Location
    Sydney
    Posts
    949
    Quote Originally Posted by Summiitt View Post
    The first turbo cooked itself from overspinning. We couldn't keep the flexible intake hoses on the unit, KLR were good and after the unit was sent away to be inspected, they supplied us with a new turbo. Everything was checked and double checked in the installation which was carried out by a LandRover specialist. Every measurement and adjustment was recorded and double checked against KLRs specs. We are not new in how to run a Diesel engine with respect to EGT and running them for reliability when they are working hard..this kit is simply not up to the task.
    Yes, we are trying to get some more power out of the 6x6..thats what the kit is marketed as, if its not up to it then back to the drawing board. Im just lucky that I had a backup ute that could carry all the equipment for the 3 months that this has gone on for.
    Summit
    Please don’t get me wrong I am not trying to divert responsibility away from KLR. If they supply a product that fails they should ( and have in your case) replace the faulty product.
    All I am saying is that their maybe another reason outside of their control that is causing the failures.
    IMO the heat generated by sustained full power operation could be that reason.
    The only way to know is to monitor the levels of that heat with an EGT gauge and alarm.
    If it helps even my moderate tune will generate EGT’s of over 600 deg post turbo if I leave the loud pedal planted up very steep hills with a trailer behind me. When it does my alarm goes off and I let go. It cools immediately when I do.
    I hope this helps
    Phil
    Phil B

    Custodian of:
    1974 S3 swb wagon (sold)
    1978 S3 swb canvas
    48 749 '88 4x4 Perentie
    1985 County with 4BD1T

Page 2 of 3 FirstFirst 123 LastLast

Tags for this Thread

Bookmarks

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
  •  
Search AULRO.com ONLY!
Search All the Web!