Andy, my V8 has had a problem with silt in the fuel all year. It finally came to a head when it killed the pump back in September and I knew it was the tank rotting away. Around November time I noticed a some trails of fuel around the bottom straps so it was clearly ready to come out.
I did the job over a few days at Christmas and took the chance to wire brush all the rear end and treat with Hammerite Gloss and Waxoyl.
When I took the tank out I was surprised at the size of the hole hidden by the straps that had seemed to promote rot behind them. I coated the new foam pads in waxoyl and gave the tank a good coat of paint before re-fitting.
Not too bad a job to do. I made a platform out of ramps with blocks of wood on them to go under the rear floorpan area to support the car on and that gave me enough clearance to drop the axle and pull that tank out of the drivers side without the need to remove the exhaust.
I fitted all new straps and foam inc a new sender unit. The fuels clean and my tank now reads full when full and empty when empty!! [:D]
I've also made sure I have a new tight seal on the fuel cap (my Grinnall uses the aero style one) to ensure no water gets in there again. I didn't bother with tank seal or treatments as its a bit of a minefield out there. Some haven't been updated for use with the new type unleaded that came in last year containing 10% bio-ethanol. I have heard stories of sealed tanks giving many years service until last year when the ethanol dissolved the sealer into huge chunks!
<b>FOR SALE!!!!Purple 2.0 Litre DHC Grinnall</b>
Red 4.0 Litre V8 DHC Grinnall (with huuuuuge arches...!)
