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Timcat



Member Since: 20 Jul 2016
Location: Rugby at the moment
Posts: 1025
United Kingdom 2012 Defender 110 Puma 2.2 SW Indus Silver
Injector stretch bolts & new seals.
Having had to whip the injectors out on a hillside ( long story) I’m about to fit new copper seals & stretch bolts, is there anything more than changing the copper washers & fitting the stretch bolts to the correct torque?
It ran fine afterwards but want to do it properly so it doesn’t come back to haunt me!
Anyone know the torque settings by the way? 2.2 2012 cheers.
Post #963687 1st Sep 2022 4:05pm
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hank



Member Since: 12 Sep 2016
Location: South Wales
Posts: 2301
Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Clean the counter bores and injector seats scrupulously clean. Any carbon buildup will lead them to leak again prematurely > 110 XS Double Cab
Post #963712 1st Sep 2022 7:36pm
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Balvaig



Member Since: 19 Feb 2016
Location: Fife
Posts: 731
Scotland 2016 Defender 90 Puma 2.2 Landmark LE Corris Grey
From the 2012 workshop manual.

NOTE: Note the position of the fuel injector clamp.

NOTE: Re use bolt only once

Torque stage 1: 6Nm, Stage 2: 360°

Hope this makes sense

Xxx. Possible correction. xxx

On the general spec sheet for the ID4 2.2 engine the stage 2 is given as 180

Hopefully someone who has changed the injectors will be along to give you the correct Stage 2.

Sorry for the less than helpful reply.
Post #963728 1st Sep 2022 9:08pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17414
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
The manual wrote:
NOTE: Re use bolt only once


A curious remark! Does that mean the bolts can be used twice in total, or is it sloppy writing (sadly common in recent LR publications) intended to say "do not reuse the bolts'?
Post #963733 1st Sep 2022 10:19pm
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Balvaig



Member Since: 19 Feb 2016
Location: Fife
Posts: 731
Scotland 2016 Defender 90 Puma 2.2 Landmark LE Corris Grey
Exact wording copied from page 579 of my electronic version.
The heading helpfully states “ Removal steps may contain installation instructions”

To add further confusion the Haynes manual states that the torque for the clamp bracket bolts is:

Stage 1 7Nm
Stage2. Angle tighten a further 180

Need to lie down in a dark room Shocked
Post #963744 2nd Sep 2022 7:27am
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Timcat



Member Since: 20 Jul 2016
Location: Rugby at the moment
Posts: 1025
United Kingdom 2012 Defender 110 Puma 2.2 SW Indus Silver
hank wrote:
Clean the counter bores and injector seats scrupulously clean. Any carbon buildup will lead them to leak again prematurely


Thanks for the info Hank, when you say clean how would you suggest cleaning them? Brake cleaner or would the solvent damage them. Sorry for asking obvious question but never had anything to do with injectors before.
Post #963782 2nd Sep 2022 4:26pm
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Timcat



Member Since: 20 Jul 2016
Location: Rugby at the moment
Posts: 1025
United Kingdom 2012 Defender 110 Puma 2.2 SW Indus Silver
Balvaig wrote:
Exact wording copied from page 579 of my electronic version.
The heading helpfully states “ Removal steps may contain installation instructions”

To add further confusion the Haynes manual states that the torque for the clamp bracket bolts is:

Stage 1 7Nm
Stage2. Angle tighten a further 180

Need to lie down in a dark room Shocked


Don’t quite get this, basically 7mn & then tighten 180 degrees?
Post #963786 2nd Sep 2022 4:40pm
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ickle



Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1784
France 2008 Defender 110 Puma 2.4 CSW Alpine White
I think you're spot on 7Nm then 180 degrees.

A friend who owns (and was 'hands on' for very many years) a diesel injection business always repeat always anneals the copper washers before fitting them - no matter who's manufacture, what colour packet, OEM or not it just ensures they will seal.

HTH Keith
Post #963788 2nd Sep 2022 4:54pm
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Timcat



Member Since: 20 Jul 2016
Location: Rugby at the moment
Posts: 1025
United Kingdom 2012 Defender 110 Puma 2.2 SW Indus Silver
That’s interesting, they’re all genuine seals & bolts. Will look into it Thumbs Up
Post #963793 2nd Sep 2022 5:20pm
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Timcat



Member Since: 20 Jul 2016
Location: Rugby at the moment
Posts: 1025
United Kingdom 2012 Defender 110 Puma 2.2 SW Indus Silver
Finally got around to doing this the other day, straight forward enough. Because our truck lives off road a lot of the time the only issue was cleaning the crud off around the injectors / clamps.
Post #964613 11th Sep 2022 7:40am
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