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8 & 10 cyl Bristol cars Type 407 onwards - restoration, repair, maintenance etc

603/Brigand - easiest way to empty petrol tank?

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Old 11-02-21, 05:05 PM
Join Date: Jul 2008
Posts: 39
Default 603/Brigand - easiest way to empty petrol tank?

As my Brigand has been standing in the garage for almost the whole pandemic, I think the petrol in the tank has turned to goo, and should probably be emptied out before I start the car in the spring. Any advice on the easiest way to get the old petrol out? Seems the filler spout has some sort of anti-theft grille that prevents a hand pump hose from going down.

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Old 13-02-21, 12:53 AM
Join Date: Jul 2008
Location: New Zealand
Posts: 140
Default Drain tank

Presuming it is the same as the 411, find the electric fuel pump. Hook a battery charger to the battery in case the battery is low. Next day, once fully charged, remove the outlet hose from the fuel pump and run a hose to a petrol can larger than the remaining fuel (or have several). First do a gravity drain. When that stops, turn on the ignition, but do not start the car. The fuel should pump out into the can.

However first smell the fuel. Sometimes it can last much longer, and it tends to have a bad smell if it has gone off. I have started cars after a year or two and while there may be a bit of smoke, there is no damage to the engine. If it is bad, remember you have fuel in the carburettor as well. Reinstall the fuel pump hose, disconnect it at the carb, run a rubber hose to the fuel can and repeat the draining procedure to purge the line.

Also consider oil may have drained off the cylinder walls. Best to remove the coil wire and crank the engine a few times to get oil coating without the engine firing. If you have the time, change the oil and filter first.

Do a few google searches on starting cars after storage. Lots of good ideas.
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Old 20-02-21, 10:37 AM
Join Date: Feb 2018
Location: wellingborough
Posts: 6
Default fuel

I emptied the fuel from my 603 last year, the fuel is gravity fed from the tank to the pump, so if you disconnect the fuel line from near the fuel pump, it's mechanical, the fuel will self drain. It is easy but do not light a fire to keep warm whilst doing it.
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