Mud-club

Vehicle & Technical => Defender => Topic started by: turbine on December 19, 2006, 15:43:11

Title: TD5 Cyl. Head Bolt Torque
Post by: turbine on December 19, 2006, 15:43:11
I would be very grateful if anyone could give me the cylinder heads bolt torque and toqueing sequence for the early TD 5 engine please. I beleive there is a difference in BHP between the first TD5's and the later ones. Do not know if the required torques are different though.
I have a head from another engine which I would like to install on my current motor (cracked head). As a precaution I would like to have the replacement given a very light skim to ensure proper installation. Would this be advisable seeing that these heads are heat treated. Your advice, once again is appreciated.
Title: TD5 Cyl. Head Bolt Torque
Post by: Xtremeteam on December 19, 2006, 18:21:41
dont skim the head
Title: TD5 Cyl. Head Bolt Torque
Post by: Porny on December 19, 2006, 18:59:07
Quote from: "Redlinemike"
dont skim the head


That's what Land Rover say... but then I know people who have with out a problem....
Title: TD5 Cyl. Head Bolt Torque
Post by: Porny on December 19, 2006, 19:34:23
Same for early and late engines....

Stage 1 - 30 Nm (23 lbf.ft)
Stage 2 - 65 Nm (48 lbf.ft)
Stage 3 - a further 90

Just make sure you use the correct head gasket too.... will be the same thickness as the one your old engine - thickness is dependent on piston protrusion (not head)

Is the 'new' head the same age as your existing engine?? - EU2 and EU3 are not interchangeable AFAIK.

Also make sure you fit the later metal dowels.... rather than plastic.

And use new head bolts (new ones are also prelubricated - so don't use addtional oil)

Quote
I beleive there is a difference in BHP between the first TD5's and the later ones


Not really... but both EU2 and EU3 (post 2002) engines are easily tuned for more power!!!  :wink:

Ian
Title: TD5 Cyl. Head Bolt Torque
Post by: Xtremeteam on December 19, 2006, 20:28:00
Quote from: "Porny"
Quote from: "Redlinemike"
dont skim the head


That's what Land Rover say... but then I know people who have with out a problem....

if it was my TD5 i might skim it,but i aint gonna tell him on a public forum to do it
Title: TD5 Cyl. Head Bolt Torque
Post by: Porny on December 19, 2006, 21:58:28
Quote from: "Redlinemike"
Quote from: "Porny"
Quote from: "Redlinemike"
dont skim the head


That's what Land Rover say... but then I know people who have with out a problem....

if it was my TD5 i might skim it,but i aint gonna tell him on a public forum to do it


Mike.... I agree...
I was just putting both points across - a case of try it and see... it might work, or it might go wrong.

Turbine... just check the heads flat and in good condition - if you do have skimmed just have the absolute minimum off... but is at your own risk  :wink:

Ian
Title: TD5 Cyl. Head Bolt Torque
Post by: turbine on December 20, 2006, 14:29:39
Thank you very much Ian and Mike. Finished the install and she is going very nicely. Did not reply straght away as I just took down the gen. and rushed off this morning to ensure I had everything according to your specs. Didn't have to skim the head as she was pretty good. Once again thank, you your help is very appreciated. Have a good christmas.
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