Thursday, 8 May 2025

Fuel Tank & Rear Fuel Lines

The fuel tank is bonded in and is made clear in the GBS build manual. I needed to ensure the tank was centralised so the fuel filler pipe is in the right position. Before mounting, I made some marks on the fuel tank when centralised so when putting in place with the black PU bonding sealant I got it in the right place.

Put a picture here!

Once the fuel tank was firmly stuck, I then thought about how to run the rear fuel lines. The two options I considered was to run the fuel lines between the gap of the diff and the chassis. I saw a blog that did this successfully and got IVA first time, but there were some other comments about rubbing of the lines. I tried the route but found that the lines when running from the tunnel to the diff were not secure enough and would rub in the gap. So no to this option.

The other option was to run them to the left, around the side of diff whilst avoiding the handbrake cable and fixed brake lines. To do this I made a small aluminium bracket with a rivnut to be able to hold a P clip. This bracket was bolted to the ear of the diff. Where the fuel lines transitioned to rubber fuel pipe just beyond the tunnel, I used an offcut of fuel pipe with a cable tie attached to the chassis to ensure the fuel lines didn't touch the fixed brake pipes or handbrake cable. I wrapped the fuel lines together firmly and secure with cable ties. I used some off cuts of fuel pipe as additional protection for the fuel pipe from the cable ties.

Rear Fuel Line Around The Diff Attached to Diff Bracket

Where the pipes transitioned to the rubber pipe I used some off cut of fuel pipe to protect the nylon fuel lines from touching the brake pipes or chassis. I used the supplied fuel line clips from GBS with the circular clamping for even pressure and tightened them up over the brass fuel pipe inserts.



Once past the diff, the fuel lines needed to be secured to the chassis with a P clip. The pipes then split apart to join onto the low pressure fuel pump (red) and return to fuel tank (black).

Fuel lines P-Clipped to chassis.

Generally please with the result. The fuel lines are really solid and do not have the potential to rub anywhere.

Since the fuel lines are wrapped together, to ensure it's clear I used the correct grade lines (supplied by GBS), here's a picture!

Fuel line grade used - provided by GBS



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