Petrol to TDI swap tank issue - Defender Source
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Old May 30th, 2016, 10:27 AM
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So it looks like I may have found the reason my TDI has intermittent air in the fuel lines. When we did the swap fro gas to diesel, I kept the original petrol/3.9 fuel sender on the side of the tank. The guy that helped me with the swap fabricated a pickup tube for the top of the tank, and the return line went to the small tube sticking out the right side of the tank. Since I've dropped the tank, I'm thinking I need PRC8463 which is looks like a combination fuel sender/pickup tube for the side of the tank. Also, does the fuel return go to the top of the tank where the original fuel pump for the 3.9 was? If so, WTF is the little pipe sticking out of the tank for (closest to the front...not the breather pipe)? Bring on the yer a dumbass comments
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Old May 30th, 2016, 10:37 AM
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Not sure the details of the tanks, but the diesel returns use pipes that go to the bottom of the tank. This is to help prevent air getting in the line if the non-return valve leaks a bit.
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Old May 30th, 2016, 10:48 AM
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Quote:
Originally Posted by Red90 View Post
Not sure the details of the tanks, but the diesel returns use pipes that go to the bottom of the tank. This is to help prevent air getting in the line if the non-return valve leaks a bit.
It looks like some people just blank it off from what I found here. https://www.landyzone.co.uk/land-rov...bit-go.206357/

Interested to know what others that went TDI have done. I just have the basic 110 tank as pictured

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Old May 30th, 2016, 11:02 AM
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If I understand it correctly, Allbrit.de - Ersatzteile für LAND ROVER & MG ROVER on a diesel, the port on the left with the red circle gets blanked off and the return is a pipe with the sender, AMR1495.

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Old May 30th, 2016, 11:36 AM
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Turns out that pipe broke off so I have to plug a hole vs cap it off.
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Old May 31st, 2016, 06:13 AM
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The original TDI has the fuel pick up on the side of the tank as pictured in Red 90 s post.Return goes in the little pipe at the front/ top of the tank.
However there were various early versions around. I guess LR used up old stock.
It doesnt matter were you get your diesel from as long as the pick up pipe reaches far enough down. Return pipe also can go anywhere top of the tank.
Never get your diesel from the bottom of the tank! This is a drain plug only. The lowest point of the tank accumulates sediment, water and other nasty things you dont want in your fuel system.
Unfortunately i have not come across a usable after market sender unit. They all leak, show the wrong value on the gauge or the pipe breakes off.
So i am using genuine. Make sure you are sitting down before getting the price.
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Old May 31st, 2016, 07:52 AM
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Thanks Thiemo and welcome to the group! I already had a Bearmach sender in the garage, but I'll look around for a genuine part.
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Old May 31st, 2016, 07:53 AM
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I broken the return tube off my sender/pickup when the tank Mount broke. I got a new lock ring, gasket and sender aftermarket from Trevor @ rovahfarm... This was two years ago and still going strong.

I have the same setup as you with a early tank, pickup/sender in the side and return at the top of the tank.
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Old May 31st, 2016, 11:28 AM
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Quote:
Originally Posted by Naplm00 View Post
I broken the return tube off my sender/pickup when the tank Mount broke. I got a new lock ring, gasket and sender aftermarket from Trevor @ rovahfarm... This was two years ago and still going strong. I have the same setup as you with a early tank, pickup/sender in the side and return at the top of the tank.
Do you just have some fuel hose going over the tank and to the pickup side (left hand side of truck)? Wondering if I should secure it along the chassis?
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Old May 31st, 2016, 12:05 PM
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Yep just nylon hard plastic fuel line running the length of the truck. I'd lake to replace it with Polyurethane blue flex clear
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