 | Home > Td5 > TD5 Fuel Leak Rear of Engine...New Regulator Fitted |
 
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| Chilly Member Since: 16 Sep 2012 Location: Australia Posts: 9   
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Hi,
I have a fuel leak form the rear of the engine. I thought it wa the regulator. Changed this with a genuine one. It still leaks. Cannot see where from. Drips after a drive. Cannot see any pipes leaking etc. Can this leak for the cylinder head? Or could it some how be getting over pressured? The Injectors have been replaced, (for another reason), but this did not change the leak. Appreciate some help on diagnosing. Thanks, Chilly Chilly |
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3rd Mar 2016 12:54pm |
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| Chilly Member Since: 16 Sep 2012 Location: Australia Posts: 9
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diesel oil Chilly
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3rd Mar 2016 2:20pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
over pressured will vent back to fuel tank
new gasket then replacement unit fitted  three fixing bolts that 18Nm
viton o ring all ok ? |
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3rd Mar 2016 3:17pm |
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| rfkdemon Member Since: 02 Apr 2015 Location: Staffordshire Posts: 64  
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Did you use a genuine gasket also and was it the correct gasket for the improved FPR, it should be MSX000010. The improved FPR's has the same casting for both the 10 and 15p engines, the extra union is just not drilled and tapped in the 10p and so the later gasket must also be used.
The small O ring must also be changed. I am happy to be wrong but I am certain the correct torque for the 3 bolts is 25 nm or 18 lbs ft, make sure you torque tighten them gradually so that the gasket gets crushed equally. Other than that, check o ring in the feed and return pipes. Matt |
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3rd Mar 2016 5:42pm |
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| Chilly Member Since: 16 Sep 2012 Location: Australia Posts: 9
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Thanks Matt,
Ill give that gasket a try. Chilly |
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6th Mar 2016 7:52am |
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| rfkdemon Member Since: 02 Apr 2015 Location: Staffordshire Posts: 64
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The o ring part number is err6761, be sure to replace this too and clean the little gauze filter out behind this too whilst you are in there.
Check to make sure the mating face is flat and there are no obvious signs or cracks or porosity etc. Matt |
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6th Mar 2016 11:35am |
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| Loz2286 Member Since: 31 Aug 2015 Location: High Wycombe Posts: 121
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Got exactly the same problem. Changed the FPR and still leaks. Is it possible that the whole FPR mounting unit is faulty? 1999 Td5 110 CSW 1961 Series 2 88 LPG |
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11th Mar 2016 6:05pm |
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| Hufflepuff Member Since: 25 Oct 2014 Location: Hampshire Posts: 723  
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Hmm this is topical. Changed mine last weekend, and I'm not sure if its stopped the leak - I'm on a pebble drive so its not that easy to tell.
How on earth are you supposed to torque up the bottom nut? I could only get one of those nasty bendy bars on it, and torqued by hand. |
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11th Mar 2016 9:34pm |
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| ozzy57 Member Since: 14 Feb 2014 Location: Farnborough Posts: 221 
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Drop the starter motor out, it only takes 10 minutes an gives you complete access. It wasn't me!
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13th Mar 2016 9:24am |
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| rfkdemon Member Since: 02 Apr 2015 Location: Staffordshire Posts: 64
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Worth having a read of my recent thread on this issue. I had the same issue with a leak and it turned out to be a faulty genuine FPR casting, it hadn't been fly cut correctly and the casting was porous when I carried out an NDE on the material.
Worth looking at yours in detail as there could be a bad batch in circulation? Matt |
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15th Mar 2016 8:19am |
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| Loz2286 Member Since: 31 Aug 2015 Location: High Wycombe Posts: 121
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I didn't replace the casting, just popped the lot off and swapped over the little regulator thingy. I replaced the gasket but it could be I haven't torqued it up fully. Will have a check at the weekend. 1999 Td5 110 CSW
1961 Series 2 88 LPG |
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15th Mar 2016 10:27am |
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| rfkdemon Member Since: 02 Apr 2015 Location: Staffordshire Posts: 64
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I'm afraid that is most likely your problem then. I know it is a lot of money but the only way to go is to replace the whole lot with a genuine LR FPR.
Replacing the regulator and Viton seals never seem to work from what I have read. I haven't even bothered trying to just replace the reg itself as I hadn't heard of anyone that had success doing it. Coincidentally, I happened to find the reg from a VAG 20VT engine is the same rating and fitting plus it has a leak off tube fitted so when it does fail it can be directed into a catch can etc, maybe this is something worth experimenting with? Matt |
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16th Mar 2016 9:35am |
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| Loz2286 Member Since: 31 Aug 2015 Location: High Wycombe Posts: 121
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FPR fuel leak woes continue...
Having replaced the regulator gizmo and gaskets last time, I bit the bullet and bought a complete FPR including housing and fitted it yesterday. Apart from chucking diesel all over the workshop yesterday as I didn't check the pipes were fitted properly, I thought I had it fixed. Had my MOT done today and it failed on....a bloody "fuel leak from the back of the engine." I did argue the toss but the guy showed me the little puddle on his MOT bay floor. 
Rung up my local independent garage to book it in because I'm at a loss as to where the fuel is coming from. In the meantime any thoughts folks? 1999 Td5 110 CSW 1961 Series 2 88 LPG |
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2nd Jun 2016 2:21pm |
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| 4RF RDS Member Since: 19 Jul 2015 Location: Ottawa Posts: 903  
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FWIW (and for rfkdemon) I changed my FPR and seal only over a year ago and have had no problems since. Used genuine parts. Sometimes it works?!!?!?!! 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam) 2000 Defender 110 CSW TD5 (CTX) 1992 Range Rover Classic (Lizzy) 1972 Series III 300 Tdi (Stanwood) 1967 MGB GT Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats. H. L. Mencken (1880 - 1956) |
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2nd Jun 2016 4:21pm |
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