1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome To LandyZone!

    LandyZone is the biggest Land Rover forum on the net. We have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.

    Registering is free and easy just click here, we hope to see you on the forums soon!

300tdi engine rebuild crank locking SOLID

Discussion in 'Defender 90 / 110 / 130' started by martys0uth, Feb 16, 2017 at 8:03 PM.

  1. wammers

    wammers STILL BREATHING. Donater

    Joined:
    Oct 19, 2008
    Posts:
    45,005
    Likes Received:
    2,993
    Location:
    Preston Lancs.
    Did the engine turn at all. If it did not turn at all odds on the caps are on wrong and nipping the crank.. Either the wrong way round or on the wrong con rods. The retaining cutouts for the shells should both be at the same side. Not opposite each other.
     
    Last edited: Feb 17, 2017 at 3:53 PM
  2. Saint.V8

    Saint.V8 Dyed-in-the-wool 100% RR Junkie

    Joined:
    Apr 27, 2008
    Posts:
    13,278
    Likes Received:
    407
    Location:
    Surrey - Near the middle, close to some green bits
    Come on Tony, you know as well as I do that things that *can* be done will be done....

    To the OP - Wammers and me - We is just playin' wiv eachuver - and not in a 'Saville' way mind you :D:D:D
     
    Turboman and martys0uth like this.
  3. wammers

    wammers STILL BREATHING. Donater

    Joined:
    Oct 19, 2008
    Posts:
    45,005
    Likes Received:
    2,993
    Location:
    Preston Lancs.
    Think you need some new nipple clamps Ant. And don't forget to soak the butt plug in Dettol now and again. You don't want a sore ring piece again. :):D:D
     
    Turboman and Saint.V8 like this.
  4. martys0uth

    martys0uth Active Member

    Joined:
    Jul 1, 2015
    Posts:
    108
    Likes Received:
    16
    How you play is no business of mine :rolleyes:

    I'll check the conrods for the right and look at the cutouts, potentially something that could be causing it
     
  5. Kwakerman

    Kwakerman Well-Known Member

    Joined:
    Jan 19, 2013
    Posts:
    2,362
    Likes Received:
    197
    Location:
    Hampshire
    I would have thought that a bit of mechanical sympathy would tell you to stop trying to turn it before managing to break a breaker bar! If you are 100 % sure you have got the caps on the correct rod and the right way around then have a look at the shells or measure the crank to make sure no one has done a half arsed crank regrind job and not done all the big end journals. If they have then you may have an oversize pair of shells on a standard size journal? And as said above flood it with oil or assembly lube.
     
  6. freelance

    freelance Well-Known Member

    Joined:
    Mar 5, 2009
    Posts:
    4,564
    Likes Received:
    352
    Location:
    essex and beyond
    Have a good look at new shells versus old, sounds like they are too thick, possibly wrongly supplied !
     
  7. martys0uth

    martys0uth Active Member

    Joined:
    Jul 1, 2015
    Posts:
    108
    Likes Received:
    16
    Used the Existing shells sine there was no wear on them!
     
  8. freelance

    freelance Well-Known Member

    Joined:
    Mar 5, 2009
    Posts:
    4,564
    Likes Received:
    352
    Location:
    essex and beyond
    So have you mixed shells in different rods?
     
  9. Gmacz

    Gmacz Active Member

    Joined:
    Feb 12, 2016
    Posts:
    239
    Likes Received:
    62
    Location:
    Forfar/Dundee
    Loosen the bolts a little and see if it turns.
    Did you gap the new rings before fitting.
     
  10. boguing

    boguing Well-Known Member

    Joined:
    Mar 18, 2008
    Posts:
    1,883
    Likes Received:
    315
    Location:
    Dorking
    You may be able to tell which way round the cap is by looking at the numbers - but you may not know which way round the rod is because you've had them out. Normally we make a mark on the rod and cap to get the orientation correct later.
     
  11. martys0uth

    martys0uth Active Member

    Joined:
    Jul 1, 2015
    Posts:
    108
    Likes Received:
    16
    Yeah the Haynes manual said that also, the con rods are marked and manual said to ensure the mark was pointing back towards the gearbox side of the engine IIRC.
     
  12. Saint.V8

    Saint.V8 Dyed-in-the-wool 100% RR Junkie

    Joined:
    Apr 27, 2008
    Posts:
    13,278
    Likes Received:
    407
    Location:
    Surrey - Near the middle, close to some green bits
    I know on the V8 engine the caps have a small mark on them and the rods also have an orientation 'nipple' - does the diesel engine not have similar?
     
  13. martys0uth

    martys0uth Active Member

    Joined:
    Jul 1, 2015
    Posts:
    108
    Likes Received:
    16
    Caps, Shells and rods all have markings to ensure they go on the right way yeah the only thing I can think of is that some shells have been swapped by mistake with a wrong piston as the shells are not numbered like the caps and rods.

    the Nipple was pointing in the direction the Haynes had said to put it on this engine
     
  14. wammers

    wammers STILL BREATHING. Donater

    Joined:
    Oct 19, 2008
    Posts:
    45,005
    Likes Received:
    2,993
    Location:
    Preston Lancs.
    When you strip anything, you mark each piston with cylinder number and orientation as you remove it. As you remove piston and con rod you replace cap in correct orientation as you go along. If you remove shells to clean you remove them from each con rod or cap one at a time in turn and replace them in same place they came from as you go along. You do NOT remove them all and throw them in a bucket of Paraffin then assemble them willy nilly. They need to go back on the crankpin they have been bearing on. I find it hard to believe the crank pins will be ground to differing sizes. I would think you have assembled the caps the wrong way round on the con rods or mixed caps on con rods. Con rods and caps are machined as a unit the caps only fit one way round and only fit their own con rod. Hope you have learned something from this. Haynes manual is as useful as tits on a Mars bar. Try this http://www.landroverweb.com/Pdf-files/300Tdi_Overhaul_Manual-Land-Rover.pdf
     
    Last edited: Feb 21, 2017 at 10:29 AM
    Turboman likes this.
  15. Turboman

    Turboman Rural Activist

    Joined:
    Aug 21, 2010
    Posts:
    16,932
    Likes Received:
    6,149
    Location:
    Way Down West
    Yes, been working on landrovers 30 years, I get totally confused about what to do if I look at a Haynes lr manual! :(
     
  16. Gmacz

    Gmacz Active Member

    Joined:
    Feb 12, 2016
    Posts:
    239
    Likes Received:
    62
    Location:
    Forfar/Dundee
    "Hope you have learned something from this."
    I agree with this, if you are buying a 20" breaker bar, get a good quality one.
    Cheap breaker bars are not even strong enough to turn over an engine without breaking.:)