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MG MGB Technical - Gas Tank

Thanks for all the help with gas tanks a few weeks ago. The thread seems to have disappeared.
Now my question is - what paint should I use? DO I need to coat the inside of the tank to try to prevent rust?
Thanks
AndyT

I'd recommend POR-15. (www.por-15.com) The stuff is hard as nails and practically indestructible. It's what I used on my new tank a month ago. You don't have to coat the inside of the tank, but it's relatively easy to do with the tank new and out of the car, so why wouldn't you? It'll make the tank last a lot longer.

Also, be sure to get the packing material for the top of the tank when you mount it - it provides some air space to keep the top of the tank dry.
Brian LaVoie

I just replaced my tank, and wish I'd thought of POR-15. I've never used the stuff, but heard good things. I used four coats of Rustoleum matte black and two coats of Meguiar's Carnauba wax, top and bottom and all the way 'round. Others said not to buff it, but I couldn't help myself.

Some people have mentioned that they ended up clogging the intake screen with the tank liner. If you go that route, do read the instructions and be careful about that item.

My old trim strips were perpendicular to the ribs on the top of the tank. This seemed like a good way to trap the water up there. I cut my strips to match the ribs, which seemed to allow a better path for the water to drain.

Before any of this, you might consider putting a gallon of gas (or alcohol) in the tank, slosh and drain before you install it. I wonder how much dust and construction crud is in a new tank. For this reason, it's probably a good time to put a filter between the tank and pump if you don't have one already.


Matt Kulka

Rather than use packing material, I used a cut up inner tube, will not retain the water, and works well as an anti vibration packing
rgds
Mark
Mark

Andy: Remember, I have the tank sending unit wrench ready when you want it.

Peter VanSyckle
Peter Van Syckle

I guess I'm goijng to have to replace the tank on my 72 B...the PO let it sit for a year and of course it's now full of rust and the intake screen is clogged. Has anybody done the replacement with the "aftermarket" tank (as offered by Moss) which is half the price of the factory part? Any problems with this or should I fork over the extra money for the proper tank?
W.F. Daniels

I just bought a tank kit from VicBrit, it includes eveything except the seal for the fuel sender unit. I have to call them about that item! The only "problem" is there is no drain bolt in the new tank. And the lip was bent i n 1 or 2 palces, but I can straighten that out.
I chose the tank kit after getting lots of responses (now lost on this board) suggesting how to go about replacing the tank.
But it is bright shiny steel, so has to be painted, hence this thread.
Once I get it painted I'll borrow Peter's wrench and be back on the road. Oh after I get a rebuilt fuel pump...
Rgds
AndyT

Andy-
I can confirm what Brian said. P.O.R.-15 is hard as nails and practically indestructable. Great for suspension components, underside of the car, just about anything. Not cheap, but worth every penny in the long run.

WF-
Beware of cheap replacement fuel tanks. They often have no internal baffles, no screen, no provision for draining, etc. Fuel tanks are like tops: You get what you pay for.
Steve S.

This thread was discussed between 19/06/2002 and 22/06/2002

MG MGB Technical index

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