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Mazda 626 Fuel Tank And Lines

Q. My question concerns about repairing a fuel system of my car. There is two different problems;

1) The pipe contains a leak between a carburetor and the tank. The hole is located in the pipe about a one meter from a rear wheel(s). The hole is not so big, but the gasoline smells quite often.

Mazda 626 Fuel Tank And Lines

I believe that there are two pipes; one for a fuel from the fuel tank and the other for the fuel from the engine. How to change the fuel pipe? What kind of tools do I need?

2) At the same time I have decided to repair a broken fuel tank. Because of a rust there is a hole somewhere on the left side of the tank. So I can refill only a half tank to prevent a spillage. Last time when I lifted up my car I investigated a installation of the fuel tank. I noticed that there are a couple of bolts on the corners and "a bus" over the tank. I could be easy to remove a rusted part, but how about reinstalling a new one?

My car is a 1989 Mazda 626 with a 2.0 litre engine.

Thank you for your help!
best regards,
Veli-Matti Ahlroth

A. The fuel tank is fairly easy to remove. From underneath you will see two straps going under the fuel tank. Follow the strap and you will see a bolt holding each strap to the frame. Remove the bolts and the fuel tank will, quite literally, fall down. Disconnect the lines, hoses and connector and take it out. I would send it to a radiator shop to be repaired, if it's repairable.

As long as the fuel tank is out, this is a good time to replace the fuel lines. All you need are mostly basic tools. You can get exact replacement lines from the Mazda Dealer or you can get straight fuel line from the parts store and bend it where you need to. I would bring a chunk of fuel line with you so you get the right size. You'll need a tubing bender to bend the lines without kinking them.

If you are not comfortable with this, I would suggest having a professional do it.

Be very, very careful. You will have open fuel lines and fuel tank. Any spark could cause a fire or explosion. Be sure to disconnect the battery before starting any work and keep others away. It would be a good idea to have a fire extinguisher rated for gasoline fires handy, just in case.

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