 | Home > Puma (Tdci) > Need help in detaching fuel lines from filter head |
 
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| Island Rover Member Since: 15 Jun 2018 Location: Grenada, West Indies Posts: 14   
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I have bleed the low pressure side - maybe not enough or maybe not quick enough re-connecting the hose? But I had good solid fuel flow through the special tool (home made). Then cranked and cranked the engine with no start. I figured that even if I lost some of the prime while reconnecting the low pressure supply hose, as long as it was close, the pump would pull the fuel through eventually as long as it was close. No luck so far.
I really like your idea of extending the breather hose and using that to blow air through to help with bleeding. I am guessing that you originally extended it to increase your wading depth? I have extended all of my other breathers and ran them to high point in the engine bay until I add a snorkel. I have definitely thought about extending the fuel tank breather - but now I have double the reason to do so. I would be very curious to see what you have done there? Did you just attach a hose to the curved breather fitting or something else? Did you go with a larger diameter hose? Where did you run it to? I have a "Power Tank" Co2 system in the back, so easy enough to pressurize the fuel tank when needed. I would love to see some pictures of this modification if you can? Chris |
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31st Mar 2020 1:51pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17353  
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I have the early style breather which ended just behind the RNS wheel and used to get covered in crud. I ran a length of the sort of hose traditionally used for petrol fuel line from the top of the tank up past the RNS lights and into the space inside the body behind the light units (mine is a double cab so not enclosed). Behind the cover panel that protects the lights, I coiled up enough extra length of hose to mean that I can uncoil it and blow easily.
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31st Mar 2020 2:28pm |
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| Island Rover Member Since: 15 Jun 2018 Location: Grenada, West Indies Posts: 14
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Ok - that sounds great!
I think that mine is the same - runs from the top of the tank up into the left rear wheel well terminating in a hard plastic "candy cane" tube. I bet that I could take fuel hose and a hose clamp and extend it to up behind the lights. I will check it out and see what I can do. Unfortunately with the island on lock down this week, I won't be able to get to the shop until next week... I will snap some photos when I can! |
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31st Mar 2020 6:09pm |
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| RobM Member Since: 06 Jul 2015 Location: Brisbane Posts: 52  
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Guys, this is what I did to overcome the issues of priming. I ended up installing a 2micron Aux Man-Hummel Fuel Filter under the bonnet.
 Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge To date, it's been working fine. Had the fuel flow rate checked by an LR Mechanic and all within the normal parameters. The Filter does come with a water sensor underneath, but I was worried about clearance with the bonnet. There may well be enough room to have the water sensor installed but I didn't bother as I was on a time limit at the time... May look at it further down the track... Rob Cheers..... Rob 1995 Defender Tdi 110Wgn 1996 LR Discovery Tdi300 (A) 2009 Defender PUMA 110Wgn My TRPS: Rob's WikiLoc Trips |
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1st Apr 2020 8:54am |
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| HardCharger Member Since: 03 Mar 2013 Location: Manila Posts: 732  
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Can you give us more details on this?
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1st Apr 2020 11:08am |
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| Island Rover Member Since: 15 Jun 2018 Location: Grenada, West Indies Posts: 14
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Nice solution! I like the idea of cleaner fuel, water detection would be a great addition and the manual bleed pump to top it all off. Looks great.
I was thinking about the possibility of installing an electric pump inline between the tank and the wheel well filter. But really don't like the idea of cutting into the nice new factory fuel lines I just bought... Could set it up to be switched either to the ignition or just to a toggle switch for use when bleeding the fuel system. Luckily, there normally isn't much need to bleed the fuel system - but would be nice for it not to be a PITA when it is needed. Seems like the idea of extending the tank breather line is the least invasive fix so far - I am definitely going to give that a try first. Chris |
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1st Apr 2020 12:13pm |
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| RobM Member Since: 06 Jul 2015 Location: Brisbane Posts: 52
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Here's a link to the Mann HUmmel Preline Fuel Filter I installed: MANN PRE LINE pre-filter for diesel fuel Catalogue There are few options but I went with the PreLine 100/150 model that comes with a primer & the water sensor underneath. As I mentioned previously, I decided not to install the water sensor due to limited bonnet clearance but may reconsider in the future if I can ensure I have the bonnet clearance. I purchased the (Male/Female) quick release connectors Car Auto Fuel Line Hose Quick Release Connector (12mm). At 1st, I bought the wrong size as I thought they would be the same size as the ones at the OEM filter but they're not. They are a 12mm fitting from memory. I just tapped into where the fuel line comes up into the engine bay at the quick connector where the valve is. This is where I just connected the fuel lines that went straight to the Aux Filter. The beauty of this is that I can quickly/easily restore it back to factory should the need arise. I just made up brackets to mount the filter housing to. The Filter kit came with a 8micron element but since the OEM one is 5micron, I couldn't see the point in installing a 8micron, so I went with the smallest that the dealer sold which I think is 3micron. I was worried about possible fuel flow/volume issues and the extra pressure this might put on the IP but taking it to our local LR mechanic, they did the diagnostics and the fuel flow/volume was still within OEM specs. Here in Australia, they do sell a complete Aux fuel kit that mounts above the Gearbox X-member in the inside of the chassis rail and taps into the Cooler. I never liked this option due to its location. Cheers..... Rob 1995 Defender Tdi 110Wgn 1996 LR Discovery Tdi300 (A) 2009 Defender PUMA 110Wgn My TRPS: Rob's WikiLoc Trips |
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1st Apr 2020 9:48pm |
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| HardCharger Member Since: 03 Mar 2013 Location: Manila Posts: 732
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Thanks for the details. I saw the crossmember kit you were referring to and didn't like its location either.
Have you tried priming the fuel system from here? This will definitely be in the mods queue.  |
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2nd Apr 2020 7:06am |
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| RobM Member Since: 06 Jul 2015 Location: Brisbane Posts: 52
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Yes, I had to use the primer when I installed the filter. Worked aa treat and was fairly quick too Cheers.....
Rob 1995 Defender Tdi 110Wgn 1996 LR Discovery Tdi300 (A) 2009 Defender PUMA 110Wgn My TRPS: Rob's WikiLoc Trips |
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2nd Apr 2020 7:12am |
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| HardCharger Member Since: 03 Mar 2013 Location: Manila Posts: 732
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Great! Thanks, Rob!
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2nd Apr 2020 7:52am |
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