mucdup3.5 Posted July 17, 2008 Share Posted July 17, 2008 Hi, I have had fuel problems with my 3.5 efi relating to the connections and pipes around the fuel filter. When I broke down on the motorway the nice RAC man undid all the clips on the flexible hoses unfortunately this started a chain of problems. I replaced the flexible fuel return pipe into the tank , which was just a bent straight piece of flexible with the correct elbow. However in doing so I seem to have disturbed the steel pipe which goes up over the chassis. This pipe is corroded and sprang a leak. I tried unsuccessfully to put a sleeve of flexible 10mm pipe over the steel pipe but I am having difficulty getting a seal so that the leak has moved forward of the rear chassis member. Is it possible to use something like ptfe tape on the steel pipe to take up the imperfections or will siilcon sealant do the job? I want to avoid replacing the steel pipe if possible as I think it may be difficult to get proper replacement. I spoke with my local LR dealer and he said the pipe is no longer available through them. Quote Link to comment Share on other sites More sharing options...
paintman Posted July 18, 2008 Share Posted July 18, 2008 Over the chassis is where they usually go. And once they go there you will find much of the rest is also on its way out. Don't try bodging it, it is unlikely to work - as you are finding - & a fuel leak is dangerous & an MoT fail. I replaced both of mine when one started leaking but used copper brake piping (buy a roll of it, IIRC 1/4" but check the diameter of the old ones on your car as its several years since I did it) If you take care in removing the old ones then you can use them as a guide to bending the replacement to the same shape. Don't confuse the feed & return when fitting. If the plastic clips on the chassis break then use long cable ties in a figure of 8 round the pipes & chassis to secure them on top of the chassis rail. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted July 18, 2008 Share Posted July 18, 2008 I just replaced the whole lot with flexible. Quote Link to comment Share on other sites More sharing options...
ThreeSheds Posted July 18, 2008 Share Posted July 18, 2008 I just replaced the whole lot with flexible. I am in the middle of doing this right now on my 3.9 EFI, but am having trouble finding the fittings that go into the fuel filter - no hydraulic suppliers round here know them (I've just done 40 miles to find that out) and Simmonites want SIXTY QUID for the replacement pipe that goes from the filter to the tank. Apparently it comes as one piece. I didn't ask about the price of the other (longer) one... Quote Link to comment Share on other sites More sharing options...
Guest noggy Posted July 18, 2008 Share Posted July 18, 2008 ive used copper brake pipe and ziptied to the chassis and at the ends i use a short section of rubber fuel pipe to connect with jubilee clips Quote Link to comment Share on other sites More sharing options...
steve_d Posted July 18, 2008 Share Posted July 18, 2008 I've used copper central heating pipe which comes on a roll from B&Q then short rubber pipes at the ends to make the final connections. It is not as hard as brake pipe so can be bent back and forth as you work it into position over the chassis. Steve Quote Link to comment Share on other sites More sharing options...
SteveRK Posted July 18, 2008 Share Posted July 18, 2008 go to www.europaspares.com and search for ILC8 (8mm straight coupling) to fit between the cup pipe at the tank end and new flexible pressure rated hose. 8mm bore hose and steel pipe clips etc readily available Quote Link to comment Share on other sites More sharing options...
ThreeSheds Posted July 18, 2008 Share Posted July 18, 2008 Thanks - that looks like a good site, I'll bookmark it... But it's the rubber bit with the crimped on fitting that I need - where it screws into the filter body the threads have corroded away.. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted July 18, 2008 Share Posted July 18, 2008 Fit an earlier barb-fitting fuel filter, they're readily available either genuine LR or just any HIGH PRESSURE fuel filter with the right fittings, even Halfords sell them. Quote Link to comment Share on other sites More sharing options...
Guest noggy Posted July 18, 2008 Share Posted July 18, 2008 i swear on my RRC 1988 there all push on connectors with jubilee clips to secure... hmm... although, i was sold my rangerover being told it had had no work done on it, and when ive stripped it down, its got odd parts all over it, im pretty sure its like 4 rangerovers all bodged together..... the chassis is full off sand aswell...and the engine has been hydrolyzed .... never trust ebay... /hijack Quote Link to comment Share on other sites More sharing options...
mucdup3.5 Posted July 19, 2008 Author Share Posted July 19, 2008 Hi all, thanks for the help on this problem. The fuel filter on mine has stubby fuel lines coming in and out of it. There are also flexible hoses between it and the metal fuel lines. I found that a straight piece of hose had been used on the return connection between the fuel line and the tank this was kinked and restricting the fuel flow. The proper elbow is readily available so it seems ridiculous that the person who put a new fuel tank in the car before I bought it didn't renew this properly. Also by squinting through the gap between the floor and the tank it would seem that the fuel pump to fuel line is also a straight piece of flexible pipe and is similarly kinked although there doesn't seem to be a problem with the supply side. Maybe the pumping pressure is forcing it open? Is there a tool which prepares the end of the pipes with the taper and bump over which the flexible hoses fit (sorry for the non technical description)? Thanks also for the web address I will have a look. I rang Pirtek in MK and they said they can do the lines for me if I bring the originals in as a pattern. He said their lines will out last my RR many times over even without a coating and they can coat them if I want. Haven't got a price yet Quote Link to comment Share on other sites More sharing options...
ThreeSheds Posted July 19, 2008 Share Posted July 19, 2008 <..>Is there a tool which prepares the end of the pipes with the taper and bump over which the flexible hoses fit (sorry for the non technical description)? <..> I was looking for one of these too, but the only ones I could find appear to do a brake-pipe style flare. Over the years I have often fixed flexible fuel pipe to unflared rigid pipe simply by using fuel-pipe clamps (not 'Jubilee' style clips - IMHO these are not strong enough for EFI systems) and never had any trouble. If I don't have any fuel pipe hose clamps then as a temporary measure I have been known to use doubled-up Jubilee clips. FridgeFreezer - thanks for the suggestion (so obvious - why didn't I think of that?) - I'll have a look in Halfords this morning. Quote Link to comment Share on other sites More sharing options...
steve_d Posted July 19, 2008 Share Posted July 19, 2008 The fuel filter for a 1987 EFI Classic has push on fittings and I got mine from Halfords. Steve Quote Link to comment Share on other sites More sharing options...
SteveRK Posted July 19, 2008 Share Posted July 19, 2008 It is possible to flair the end of a steel pipe enough to provide grip for the hose clip fitted behind it. Various methods can be used with varying degrees of success. Quote Link to comment Share on other sites More sharing options...
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