 | Home > Puma (Tdci) > Injector torque and my drinking problem |
 
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 108   
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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.  Click image to enlarge |
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29th Apr 2024 2:54pm |
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 108
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Thanks for the reply. Seems genuine-ish to me. Thus the confusion.
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29th Apr 2024 4:59pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17443  
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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.... |
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29th Apr 2024 5:15pm |
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 108
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Look in a 2.4 pdf. Says 180° as expected.
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29th Apr 2024 5:23pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17443
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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. |
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29th Apr 2024 5:25pm |
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 108
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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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29th Apr 2024 5:33pm |
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 108
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The 2.4 (LR019168) and 2.2 (LR029962) bolts are quite different with the 2.4's being much longer.
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29th Apr 2024 5:41pm |
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 108
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It's all very interesting but nothing is yet very reassuring. The thought of injectors escaping through the bonnet is a bit worrisome.
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29th Apr 2024 5:46pm |
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| hornet Member Since: 04 Jan 2010 Location: Western Europe Posts: 361 |
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.
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30th Apr 2024 9:58am |
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| jbcollier Member Since: 29 Apr 2024 Location: Edmonton AB Posts: 108
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Just a follow up. Though on the relevant pages it made no reference to a different spec for the 2.4, elsewhere, in small print, it did say that the 2.4 should only be turned 180°. So I fit new bolts and torqued it to that spec.
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8th Jul 2024 4:55am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17443
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Thanks for the update, and I think that you have made a wise decision.
It is sadly typical of JLR's recent performance that the manuals contain errors and at times different versions are contradictory, it resonates shoddy QA and a lack of technical reviews (but it could be argued that the current products do this as well). I think the compelling evidence in this case is the fact that, as you have illustrated, the bolts are entirely different. I wonder what will happen when an unfortunate owner loses an injector and gains a big ding in the bonnet because a main dealer has followed an incorrect manual? |
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8th Jul 2024 8:13am |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2420  
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Ford transit 2.4 workshop manual says 6Nm and 180 degrees.
Newer, 2.2 vehicles (Boxer, Duccato, BT50 etc) discussed in open foums have the same issue, as some say 180 and others 360 degrees  Puma 110" SW
............................................................. Earth first. Other planets later |
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8th Jul 2024 10:59am |
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