280i petrol tanks

280i petrol tanks

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Nigel-bcb0a

Original Poster:

5 posts

21 months

Sunday 7th February
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Are new petrol tanks for 280i available? Although not leaking mine have a lot of rust in them, but before removing them I would like to have some replacements ready . Any suggestions?

rev-erend

20,871 posts

248 months

Tuesday 9th February
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Mine has twin tanks and one had a minor leak a while back.

Nobody sells Tasmin tanks. Not even RT racing.

The only option out there is either a bespoke tank which is very expensive or just to have your tank refurbished.

I did look at several of the home refurb kits from people like Frost:
https://www.frost.co.uk/fuel-tank-repair/

But a couple of the guys on here had found that local radiator repair companies also refurbish fuel tanks
and I managed to find a local company to do mine for a very reasonable price.

The internal rust apparently can be removed with vinegar.. lots of it.

LLantrisant

674 posts

123 months

Monday 22nd February
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mine is spot on internally, but rusted through somewere in the area facing towards front (passenger), somewhere near a weld , not far away from the fixing strap.

its the passenger side tank...gauge-sender sits in drivers side tank...fed to fuel-pump from the passegner side tank.

so maybe , as temporary solution just use the drivers side tank?

adam quantrill

11,250 posts

206 months

Tuesday 23rd February
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I have heard you can put some clean gravel in and slosh the tanks around to remove the rust.
They will obviously have to be removed for this.
Combined with Alan's vinegar stroke of inspiration, this might do the trick!
Also Morisson's sell some very cheap budget cola - get the diet variety 15p for 2l.
It contains phosphoric acid which is also great at cleaning oxidation off metal (I also use it as a descaler).

Lastly, before you refix the tanks, install a pre-filter before the pump to catch any bits, you need a 100um mesh.

LLantrisant

674 posts

123 months

Wednesday 3rd March
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perfect and low-cost anti-rust solution is:

fill the tank completely with a mixture of bathroom cleaner based on chlorine and a bit of water.

connect an oldschool battery charger: minus to tank, plus to a metal-bar dipped into the tank.

the electrolysis will clean the tank...after a few hours it will be perfeclty clean inside and all rust gone.

do this only in a vented area

rev-erend

20,871 posts

248 months

Thursday 4th March
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Looks like someone has been home schooling science lessons biggrin