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jbcollier



Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 9
Canada 2009 Defender 110 Puma 2.4 SW Alpine White
Injector torque and my drinking problem
Everywhere online it says:

6nm (53 in/lbs) and 180°

BUT, in the workshop manual it says:

6nm (53 in/lbs) and 360°

I have done as the workshop manual suggests. The bolts did not snap. I have two new spare in the cubby. Any idea why the discrepancy?

...back to the bottle while I await an answer.


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Post #1033261 29th Apr 2024 3:54pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16943
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Which workshop manual is that? It does not appear to be a JLR manual.

The genuine WSM for the 2.4 clearly states:

    Install the fuel injector clamp.
    CAUTION: Make sure the fuel injector clamp is installed correctly. Failure to follow this
    instruction may result in damage to the vehicle.
    Stage 1: Tighten the new bolt to 6 Nm (4 lb.ft).
    Stage 2: Tighten a further 180 degrees
Post #1033264 29th Apr 2024 4:25pm
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jbcollier



Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 9
Canada 2009 Defender 110 Puma 2.4 SW Alpine White
Thanks for the reply. Seems genuine-ish to me. Thus the confusion.


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Post #1033275 29th Apr 2024 5:59pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16943
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
OK, definitely a JLR manual, my mistake! Typical LR, both figures can't be right. Your manual will be later than the one I quoted (original 2.4 electronic manual) since it covers 2.2 engines as well, I will check what the 2.2 e-manual says.

I wonder what the Ford manual says....
Post #1033277 29th Apr 2024 6:15pm
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jbcollier



Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 9
Canada 2009 Defender 110 Puma 2.4 SW Alpine White
Look in a 2.4 pdf. Says 180° as expected.

Post #1033279 29th Apr 2024 6:23pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16943
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
The electronic 2.2 manual does indeed specify 6Nm and 360 degrees, as stated in your printed manual. this suggests two possible scenarios:

1. It should be 180 degrees for the 2.4 and 360 degrees for the 2.2 and the printed manual omits to say this, or

2. For some reason JLR decided that the torque should be increased to prevent blow-by at some point during the period from 2007 to 2012.

I don't suppose that there is any way to know which is the case, but that fact that you have, as you say, tightened your 2.4 to the higher torque suggests that it probably doesn't really matter.
Post #1033280 29th Apr 2024 6:25pm
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jbcollier



Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 9
Canada 2009 Defender 110 Puma 2.4 SW Alpine White
I've attached a screenshot from the online 2.2 manual for people to see. In the hard copy manual I have it says that specs are for 2.2 and 2.4 unless otherwise stated. I guess I'll be the guinea pig.


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Post #1033282 29th Apr 2024 6:33pm
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jbcollier



Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 9
Canada 2009 Defender 110 Puma 2.4 SW Alpine White
The 2.4 (LR019168) and 2.2 (LR029962) bolts are quite different with the 2.4's being much longer.


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Post #1033284 29th Apr 2024 6:41pm
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jbcollier



Member Since: 29 Apr 2024
Location: Edmonton AB
Posts: 9
Canada 2009 Defender 110 Puma 2.4 SW Alpine White
It's all very interesting but nothing is yet very reassuring. The thought of injectors escaping through the bonnet is a bit worrisome.
Post #1033287 29th Apr 2024 6:46pm
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hornet



Member Since: 04 Jan 2010
Location: Western Europe
Posts: 335
I don't think it's critical because it's an expansion screw. If 360° has led to plastic deformation, the expansion component and thus the securing potential of the screw is still present. The screw is of course irreparably damaged, but is still doing its job.
Post #1033370 30th Apr 2024 10:58am
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