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Fuel Tank

sp250boy
Posts: 305
Joined: Sat Jul 09, 2016 7:29 pm
Location: Llanybydder Wales

Fuel Tank

Post by sp250boy »

After spending over a month cleaning my tank, I decided to remove the drain plug that was seized.

Good news is I managed to remove the brass drain plug... However:
IMG_8244.JPG
Any suggestions
It is a Lanchester

NickDeAth
Helpful Person
Helpful Person
Posts: 473
Joined: Mon Feb 15, 2016 8:41 pm
Location: South Essex

Re: Fuel Tank

Post by NickDeAth »

Find a decent old school welder, cut the old boss off and weld on a new one. I know that is over simplifying the job but I think that's your best bet.

Nick.
"Nick - do you think you will ever put that old car back together again?"

Marcel Renshaw
Man of Many Parts
Man of Many Parts
Posts: 673
Joined: Fri Feb 12, 2016 8:44 pm
Location: Derbyshire

Re: Fuel Tank

Post by Marcel Renshaw »

Find an old school welder brave enough to weld a petrol tank.
Filling it with water to eliminate petrol vapour from exploding.
Alternatively get a new one made from stainless steel. It should then be safe from ethanol based petrol.

sp250boy
Posts: 305
Joined: Sat Jul 09, 2016 7:29 pm
Location: Llanybydder Wales

Re: Fuel Tank

Post by sp250boy »

Any suggestions who would make me a stainless Steel Fuel tank...
It is a Lanchester

Vortex O'Plinth
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Posts: 1065
Joined: Fri Feb 12, 2016 8:15 pm
Location: Gloucestershire

Re: Fuel Tank

Post by Vortex O'Plinth »

Since you have a pattern you could try Stotfold Engineers.
Nick

"Don't bother with the Air & Space Museum - there's nothing to see.......".

simonp
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Posts: 526
Joined: Mon Mar 07, 2016 9:59 am
Location: Birmingham

Re: Fuel Tank

Post by simonp »

That's bad luck Steve. Am pleased to hear there is a drain plug. I am not sure mine has ever been drained since new!

SimonP
Daimler SP 250 - "To feel its eager response as you open up is to know a new motoring adventure"(Sales brochure) The adventure continues!

Graham
Posts: 343
Joined: Sun Feb 21, 2016 12:05 am
Location: Wirksworth , Derbyshire

Re: Fuel Tank

Post by Graham »

Not sure it would have been welded due to the dissimilar metals and thickness, brazing would probably be the best option

Vortex O'Plinth
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Posts: 1065
Joined: Fri Feb 12, 2016 8:15 pm
Location: Gloucestershire

Re: Fuel Tank

Post by Vortex O'Plinth »

simonp wrote: Sat Mar 31, 2018 10:03 am That's bad luck Steve. Am pleased to hear there is a drain plug. I am not sure mine has ever been drained since new!
It did cross my mind that considering the number of times most tank drains are used, the easiest solution would be to cut off the remains of the boss and just weld or braze a plate over the hole.
Nick

"Don't bother with the Air & Space Museum - there's nothing to see.......".

Sydsmith
Extremely Wise Man
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Posts: 1369
Joined: Sun Feb 14, 2016 11:15 pm
Location: Aberystwyth Wales

Re: Fuel Tank

Post by Sydsmith »

In the case of the SP Nick you are quite right in my view.

About the only good use a drain plug is in a fuel tank is to drain it for some reason, perhaps by chance diesel should manage to get into the tank, but with an SP that is not possible other than getting the tank out. If you have the tank out you may as well use the neck to empty the contents.

Not sure about welding or brazing a plate over though.

Graham
Posts: 343
Joined: Sun Feb 21, 2016 12:05 am
Location: Wirksworth , Derbyshire

Re: Fuel Tank

Post by Graham »

When I did my tank I left the drain plug well alone, because I thought I may end up with the same problem as you. What about grinding it flat and using petrol resistant adhesive to fasten a plate to it and then line your tank with one of the kits you get online. My tank had been repaired several times and I used one of the lining kits and up to now it as been brilliant

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