Page 3 of 3 FirstFirst 123
Results 21 to 27 of 27

Thread: Considering a D2

  1. #21
    Join Date
    Sep 2007
    Posts
    565
    Total Downloaded
    0

    Thumbs up D2 vs D2a

    TD5 D2a has metal dowels vs deformable plastic dowels in the D2
    2003 D2a Auto TD5 good Landy gone
    2015 D4 probably the most amazing yet, why get a RR?

  2. #22
    Join Date
    Jun 2009
    Location
    North Central Victoria
    Posts
    2,356
    Total Downloaded
    0
    Quote Originally Posted by Nicky View Post
    TD5 D2a has metal dowels vs deformable plastic dowels in the D2
    IMHO Plastic dowels only deform when something else is wrong. If you are replacing the head gasket etc, then by all means replace the dowels. But if it ain't broke...

  3. #23
    Join Date
    Sep 2007
    Posts
    565
    Total Downloaded
    0
    Quote Originally Posted by gusthedog View Post
    IMHO Plastic dowels only deform when something else is wrong. If you are replacing the head gasket etc, then by all means replace the dowels. But if it ain't broke...
    The plastic dowels were used for alignment at assembly. In use they allow movement which will accelerate problems. The D2a went to metal dowels, why? because......
    2003 D2a Auto TD5 good Landy gone
    2015 D4 probably the most amazing yet, why get a RR?

  4. #24
    Join Date
    Jun 2009
    Location
    North Central Victoria
    Posts
    2,356
    Total Downloaded
    0
    Quote Originally Posted by Nicky View Post
    The plastic dowels were used for alignment at assembly. In use they allow movement which will accelerate problems. The D2a went to metal dowels, why? because......
    I think it's a case of D2 paranoia personally. My old mechanic in Wodonga told me that plastic dowels will only be a problem if there are other issues with the car (overheating, head gasket issues etc) and that he has seen plastic dowelled D2's with more than 500k on them without issue.

    Actually I think many of the issues associated with D2s are paranoia. If you compare actually instances of things like plastic dowels warping with the amount of vehicles that have them IMHO I think you'd be surprised how few of them there are. Kind of like loose oil pump bolts.... (and can of worms opens)

  5. #25
    Join Date
    Oct 2007
    Location
    Brisbane West
    Posts
    7,373
    Total Downloaded
    0
    I think you are right. The LR engines typically are not forgiving of abuse but the moral is dont abuse them...

    Cheers

  6. #26
    Join Date
    Sep 2007
    Posts
    565
    Total Downloaded
    0
    Quote Originally Posted by gusthedog View Post
    I think it's a case of D2 paranoia personally. My old mechanic in Wodonga told me that plastic dowels will only be a problem if there are other issues with the car (overheating, head gasket issues etc) and that he has seen plastic dowelled D2's with more than 500k on them without issue.

    Actually I think many of the issues associated with D2s are paranoia. If you compare actually instances of things like plastic dowels warping with the amount of vehicles that have them IMHO I think you'd be surprised how few of them there are. Kind of like loose oil pump bolts.... (and can of worms opens)
    So again, please,why did the D2a go to metal dowels? (which are not recommended for the D2)
    2003 D2a Auto TD5 good Landy gone
    2015 D4 probably the most amazing yet, why get a RR?

  7. #27
    Join Date
    Jun 2009
    Location
    North Central Victoria
    Posts
    2,356
    Total Downloaded
    0
    Quote Originally Posted by Nicky View Post
    So again, please,why did the D2a go to metal dowels? (which are not recommended for the D2)

    Perhaps because manufacturing processes change and improve over time? D2a's run higher injector pressure and bigger intercoolers. Maybe this stresses the engine more and therefore metal dowels are required? I don't work for LR though so I'm only guessing. But so are you.

Page 3 of 3 FirstFirst 123

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!