 | Home > Td5 > Identifying a leak |
 
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| steve_c3 Member Since: 30 Apr 2015 Location: Hants Posts: 173   
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Does it smell of diesel or is it oil? Can't really tell from the pic but could be the fuel pressure regulator. Had a leak on mine but there was a distinct smell of diesel and the under tray was wet with it too. 2002 Defender 110 CSW TD5
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17th Apr 2017 1:38pm |
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| Dtfrith Member Since: 01 Nov 2014 Location: Manchester Posts: 76
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I had presumed it was oil but I will check once I am home at the end of the week and report back.
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17th Apr 2017 1:57pm |
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127 
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Yep, that will be the pressure regulator.
Common problem on the TD5, but a straightforward fix.  80" 80" 86" 88" 90"
Wanted, Forward Control Anything considered. |
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17th Apr 2017 4:00pm |
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| Dtfrith Member Since: 01 Nov 2014 Location: Manchester Posts: 76
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Seems to be too thick for diesel and no smell.
I'm not sure if this is relevant but when I first start and pull away it seems hesitant for the first minute. Foot flat the revs don't pic up then it lurches into life. |
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28th Apr 2017 8:32pm |
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| JustFX Member Since: 10 Nov 2016 Location: Mendip Hills Posts: 190 
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 Click image to enlarge The part highlighted in red is the FPR and is often a common fault for underperforming LR. It keeps the head at a constant pressure, letting excess fuel back to the fuel tank. Diesel doesn't smell like it used to so don't rely on that. When I did mine I took the opportunity to take off the inlet manifold (on a Disco it makes access easier) and give it a damn good clean. Don't buy cheap, go LR and get the gasket. There is also a course filter/strainer in there that is worth cleaning at the time. I did hear tales the FPR can be fixed with cheaper part from a VW. |
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29th Apr 2017 8:25am |
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| barbel jim Member Since: 12 Dec 2012 Location: Northants Posts: 1423 
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There is the chance the rocker cover gasket is leaking out the half moon on the back facing the bulkhead. This tends to run around the head and onto the lifting eye, and drips down onto the gearbox/starter also. You'll probably find the black intake pipe is covered also. Could be a combination of both
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29th Apr 2017 8:33am |
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| lightning Member Since: 23 Apr 2009 Location: High Peak, Derbyshire Posts: 2757
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I had a leak in that area and it turned out to be the rocker cover gasket leaking from the half moon rubber part.
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30th Apr 2017 8:15pm |
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| bogwert Member Since: 02 Sep 2016 Location: Dundee Posts: 194  
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We had a similar leak, after a bit of investigation it came from the rocker gasket.
Easy enough to replace.  Chris
2014 Discovery 4 TDV6 HSE 2003 Defender 90 TD5 CSW |
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11th May 2017 1:27pm |
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| huffhuff Member Since: 05 May 2016 Location: Home Counties Posts: 379 
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Ha, I had two leaks - both mentioned above. Half moon on back of rocker cover gasket and the fuel pressure regulator. I bought a kit off eBay to repair the FPR, been fine since and only took half hour ish to carry out. I did it in-between changing oils in the diffs etc..
http://www.ebay.co.uk/itm/170865386720 TD5 Defender 90 Discovery 3 HSE |
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11th May 2017 1:59pm |
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| simon67 Member Since: 18 Jun 2015 Location: west sussex Posts: 569  
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The lack of oomph could also be the MAF
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11th May 2017 2:40pm |
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| TechnoTurkey Member Since: 25 Jul 2016 Location: Worcestershire Posts: 88 
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Or the MAP
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11th May 2017 2:43pm |
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| huffhuff Member Since: 05 May 2016 Location: Home Counties Posts: 379
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Ha. Even weirder, I just had to replace my MAP. Lack of power, really struggling to get to 30mph. Looked at the other possibilities, split hoses, sticky wastegate, split intercooler. Lots of people said the MAP never fails and just needs a clean.
Mine was dead as a dodo. I have a known working spare I can lend you to see if that solves the problem with the power... With the MAF you can just unplug it and see if you notice a difference TD5 Defender 90 Discovery 3 HSE |
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11th May 2017 7:11pm |
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