The Triumph Dolomite Club - Discussion Forum

Just a quick one...

It appears that the petrol tank on my Toledo is leaking!

From what I can see there is a circular bit on the under-section that seems to be coming away from the main body of the tank.

I don't know how or why this has happened as the tank wasn't (or isn't!) showing any signs of rust/corrosion...

So I just wondered if this kind of thing has happened to anyone else and also tank repair is economically possible or if it is just best to source a new tank?

I will try and get some pictures of the problem up on here in due course...

Thanks a million in advance

Useable Toledo tanks are somewhere close to hens teeth in availability, a Dolly one simply won't fit. Repair if you can!

Steve

grifterkid wrote:Just a quick one...

It appears that the petrol tank on my Toledo is leaking!

From what I can see there is a circular bit on the under-section that seems to be coming away from the main body of the tank.

I don't know how or why this has happened as the tank wasn't (or isn't!) showing any signs of rust/corrosion...

So I just wondered if this kind of thing has happened to anyone else and also tank repair is economically possible or if it is just best to source a new tank?

I will try and get some pictures of the problem up on here in due course...

Thanks a million in advance

On wheeler dealers they put a solder patch on a leaking tank (TR6), after they defumed it. Normally I am cheap, and avoid professionals, but i would never dare work on a fuel tank. Too much risk of a big bang.

I have also seen universal tanks listed on the internet, could one of those be made to fit a toledo? Something like this http://www.demon-tweeks.co.uk/motorspor ... -fuel-tank

you may have to go on goggle and search it,got to be someone round you who can do it

Looking forward, because of the inclusion of ethanol in petrol, fuel tanks can be troublesome.

If left long enough, the ethanol will separate leaving water at the bottom of the tank.......

....plastic tanks are one solution to avoid rusting, commonly used on today's cars.


I have a s/h plastic tank from a 2008 Ford Fiesta ST. Whilst it will fit, this does require relocation of the spare wheel,
my solution will be to make a well to allow said wheel to be located vertically (a la T2000 mark one).
The capacity is 45 litres (about 10 gallons).
These tanks are really cheap on ebay (I have seen as low as £5 if you collect it yourself).

There will be plastic tanks from other cars.....



Ian.

Just to help a bit I have taken a few shots of the underside of the tank to show you folks what I can see...





It seems that petrol is leeching out from around the dodgy looking rubber bung and also slowly dripping from that small hole... Should that hole be there...?!?!?!?!

I think the tank looks fairly solid on the whole to be honest...

Many thanks

If it is a drain hole? must be an old grommet which is not unleaded capable.

I wonder if a new grommet in both holes would do the job. (with some petrol resistant sealer)

That looks like the underside of the boot floor? not the actual tank??
You need to take the tank out and inspect it carefully. My tolly tank looked reasonable until I ran a wire brush over it. The loads of pinholes.
I was lucky and somebody on here supplied me with a NOS tank at very reasonable money. Was in 2009 though......

There are specialist who can repair tanks. I have had little success with epoxy patches etc in the past.

Blimey, I thought that was the underside of the tank! What a plonker...

Is the tank easy to extract?

I have a feeling I'm not going to like this discovery...!!!

Drats

A dolomite one is held in by 4 bolts and 3 bits of plumbing. The Toly one is pretty similar.

Egg on face for those who thought a tank would have a rubber bung.... Lol.

Jonners

I did wonder about a hole and a rubber bung!

Oh well, everyday is a school day...

I can't believe my luck

Spot on Jonners my bad, brains still blanking out with my petrol tank woes.

Before you attempt tank removal. Get the pipe underneath removed (get a bucket under there too). Undo the metal union like a brake pipe so the tank has room to clear when lifted up. Then on the inside of the boot undo the filler pipe clamps/clips and breather pipe clips. You may need the n/s panel removed if still on there. Remove wires for sender unit unbolt the tank bolts and lift out sloshing petrol about

Tony

So the tank is a bit of a fiddle but not too difficult to remove...?!

I just don't understand how its rusted (which I assume is the problem) when my boot seems dry...?!

I imagine when the tank comes out I will see a whole string of woes!!!

Yes its easy when youve done it 5 times lol. The bottom of the tank sits very close to the boot floor and if water had got in there ages ago it could start the corrosion. Get it out to assess and give it a good wire brushing and clean up. If its holed it will only be pin holes so look carefully. On my tank there were a few holes near each other so I filled the tank with water, sloshed it about to clean the fuel out as good as I could and gave it to my mate who cut a 5 inch square hole out of the bottom and welded in a new piece of steel Painted up with rust proof paint and job done.
Good venting in the tank it wont blow up

Tony