Anglo-Frenchman 1 Posted February 15, 2015 Share Posted February 15, 2015 Hi, For the past few weeks I've noticed quite a strong smell of diesel when I've run the Disco for a while, particularly when it's parked in the garage after a run. The fuel pump (which I replaced a while ago) has been whining for a while. I noticed a few spots of leaking diesel under the car earlier todday and got under the investigate but couldn't see anything obvious. However, after poking about for a while I discovered that the foam soundproofing shroud over the gearbox is completely saturated with fuel to the extent that a slight squeeze produces a fairly sizable amount of diesel flowing down one's arm. From the above, I presume that there has been a small but continuous leak from a fuel pipe somewhere over the gearbox. I wasn't aware that the fuel pipes were routed over the gearbox but I know from experience that those plastic pipes get brittle so a leak is not entirely unexpected. My question is whether this is a common problem and can anyone advise of the part number for the pipe/s that I need to replace and how accessible are these for replacement. Any other pearls of wisdom gratefully received! Quote Link to post Share on other sites
rovernut 1 Posted February 15, 2015 Share Posted February 15, 2015 You need to check that the leak is not from the Fuel Pressure Regulator situated at the rear left hand side of the head. Probably the most common cause of Td5 fuel leaks Quote Link to post Share on other sites
Rangy35 3 Posted February 15, 2015 Share Posted February 15, 2015 The fuel pipes dont run over the gearbox, you probably have a fuel pressure regulator leaking or something in that area. Quote Link to post Share on other sites
Anglo-Frenchman 1 Posted February 15, 2015 Author Share Posted February 15, 2015 Thanks very much guys. So the fuel pressure regulator - is this a replace or fix issue? Quote Link to post Share on other sites
Anderzander 867 Posted February 15, 2015 Share Posted February 15, 2015 You can buy o ring kits for them - which I wasn't aware of when I replaced mine. If you do replace my advice is to get genuine. It's not a difficult job, but it is fiddly because of limited access. Quote Link to post Share on other sites
Anglo-Frenchman 1 Posted February 15, 2015 Author Share Posted February 15, 2015 Again, thank for the advice. I'll aim to order from the UK as I suspect a part like this from a dealer in NZ is likely to require a remortgage (over $150 for a set of injector seals - I kid you not). Where would you recommend ordering from? Quote Link to post Share on other sites
Anderzander 867 Posted February 15, 2015 Share Posted February 15, 2015 My suggestion would be to try the gasket and O ring kit .... I can't vouch for how effective they are, but at around £10 off eBay it's got to be worth a try. Also when you take your existing one off it will serve to confirm wether yours has been the leak - though I'd say it's hugely likely. Last thing is that the design changed part way through production - so there are two designs of regulators and gaskets. Quote Link to post Share on other sites
Rangy35 3 Posted February 15, 2015 Share Posted February 15, 2015 Mate......I would buy this and a new oring kit with the gasket, remove the regulator and work on the bench and refit it. http://www.ebay.com.au/itm/281329504742?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT Quote Link to post Share on other sites
rovernut 1 Posted February 15, 2015 Share Posted February 15, 2015 I had better results with the overhaul kits than replacing the whole unit. Whichever way you go,don't forget to clean and replace the little mesh filter into the gallery of the head. Quote Link to post Share on other sites
Maverik 569 Posted February 15, 2015 Share Posted February 15, 2015 I found a useful YouTube of a chap replacing the fuel regulator, fiddly but quiet doable. Quote Link to post Share on other sites
Anderzander 867 Posted February 15, 2015 Share Posted February 15, 2015 I used a 1/4 ratchet with flexible knuckle - would still have benefitted from an extra wrist joint and a few extra knuckles myself. Quote Link to post Share on other sites
bear 9 Posted February 15, 2015 Share Posted February 15, 2015 Have a read through this article. http://www.discovery2.co.uk/Fpr.html HTH, Griff Quote Link to post Share on other sites
Anglo-Frenchman 1 Posted February 15, 2015 Author Share Posted February 15, 2015 Mate......I would buy this and a new oring kit with the gasket, remove the regulator and work on the bench and refit it. http://www.ebay.com.au/itm/281329504742?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT Thanks guys - I really appreciate your wisdom. Seems as though the overhaul kit is the way to go. Rangy95 - when you say get the new o-ring and gasket, do these come with the kit in your page link or do I need to order it separately from the same supplier? Quote Link to post Share on other sites
Rangy35 3 Posted February 16, 2015 Share Posted February 16, 2015 Its all in the kit. Quote Link to post Share on other sites
Anglo-Frenchman 1 Posted February 16, 2015 Author Share Posted February 16, 2015 Thanks. Kit ordered. Viewed the You Tube clip which was very interesting - looks as though this is a pretty fiddly operation. Looking forward to the challenge! Quote Link to post Share on other sites
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