Oil pressure sensor & gas tank

[752dbl02]

I just replaced the oil pressure sensor ( located by dist. ) and the oil pressure light in the dash is still on!!

Why?????

And, my gas tank is leaking again due to a rust hole, does anyone know where I could find a rep. one? Other than 2002ad.

[kbken62]

I see a fuel tank for sale about once a month on ebay.

Also there is Bavarian Auto Recyclers in No. Cal. They usually have decent prices.

Finally, there are probably a couple of people here that have a spare laying around when they upgraded to FI and just got a Tii tank.

Hope that helps.

ps. Just noticed you are in Georgia. I'd suggest contacting a local salvage yard that specializes in BMW. Not sure if there is such a thing near you.

[wagnerf15]

Well, assuming the wiring is ok, maybe the oil pressure is below the light's tolerance. I'm just saying....

[Mike Self]

1. If the light comes on only at idle and goes out when you rev the engine, it's probably that your idle oil pressure is below 1 bar (14.7 psi) which is where the sensor is set. If it stays on all the time there's either a problem with the wiring (more likely) or you have no oil pressure--in which case your engine isn't long for this world. If you installed the sender with Teflon tape or thread sealer, take that stuff off; the sender grounds thru the threads.

2. Gas tank: a good radiator shop can repair the hole if it's (1) small and (2) isn't symptomatic of more rust. A good shop will empty the tank of gasoline and fill it with an inert gas, like exhaust fumes, not water, before repairing it. I had a piece of road debris puncture an otherwise good tank; my radiator shop repaired it by soldering a penny over the hole. That was in 1979; it's still holding. If the tank is rusting at the seam where the two halves are welded together, you'll probably have to replace it.

cheers

mike

[752dbl02]

There is one junkyard that specializes in bmws, and i will call up there to see what they have in the way of a used replacement tanks.

I was hoping that a radiator shop would be able to boil the thing, and fix all of the holes. The tank has sprung leaks in two places before and i have had to patch it with gas tank sealer, which has held very well, but i was wanting to fix the tank correctly and hopefully for the last time for a while. Anyways, when i fixed one of the pin holes up in the crevice where the tank sits on the frame rail of the car, i roughed up that area with some sand paper before i put the sealer on, and when i did this i noticed that there were several small rust 'divots', if you will, in the side wall of the tank. Is this kind of thing repairable?

I don't want to sound cheap, but the last time i tried purchasing a replacement tank from 2002ad, i didnt get my tank for four months and when i did receive it, it was the wrong one. The story goes south from there, ending with 2002ad having $500 of my money and me having the same leaky ass tank.

As for the oil pressure light, It has a faint glow all the time, and is bright when you first start the car, but fades to its normal faint glow after a second.

Would my old engine just not have excellent oil pressure, and that is what is causing the light to stay on?

[MikeWooldridge]

Gas tank:

Although it cost $100, my tank was dipped, cleaned, the seams soldered, and coated on the inside with something similar to POR, and works like a new one. I'm sure a radiator shop can do the same for you.

I had the same rust issues at the seams.

[TobyB]

glow?

That ain't right.

The alt light can do that (red) but the oil (orange) shouldn't.

Pull the wire entirely- if the light's still glowing, you have a wiring problem.

If it goes out, the switch is... goofy.

t

[bcthomas122279]

I've got a really nice tank...2 actually. I'll sell you one that's perfect.

bcthomas122279@yahoo.com