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Rust in Gas...HELP!

696969

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:goodafternoon:

Ok, so I kept getting suckier and suckier acceleration performance until the car just wouldn't turn over. I decided to go ahead and get the carb rebuilt (there's a place near downtown L.A. that did it for $60, which is more that worth it time-wise to me). I installed the rebuilt carb and put in a new fuel pump and filter. The old filter, by the way had a ton of rust sediment at the bottom end.

The car now runs beautifully, however, I'm still seeing a bit of rust accumulating at the bottom of the new filter. I don't want to muck up my rebuilt carb and pump. I suspect the rust is coming from the gas tank, probably dislodged by fuel additive to help clean the system. I don't see the rust coming from any other place at this point now that the pump has been replaced.

What are my options in remedying this situation, please?

I await your replies. Thanks in advance.
 
Best thing to do is pull the tank and get it cleaned at a local radiator shop. Also make sure that your fuel line is not full of crud between the tank and the pump.
 
Given your namesake, Rusty, I'll take your word for it. Herb's Parts has one for $196. Not bad.

What about the use of Gumout to get rid of water in the tank and just kinda keep the rust under control?
 
The Gumout or even flushing the tank might help in the short term but they're Band Aids on a bigger problem. Once the tank starts rusting inside, a new tank is the best cure. Money well spent. I'd recommend a new pickup/sender unit and filler tube grommet while you're at it.
 
I think the ethanol in todays fuel contributes to the rusting too.
 
drop the tank and flush it out.

get some eastwood fuel tank stuff here:

http://www.eastwood.com/ew-gas-tank-sealer-kits-for-cars.html

it is amazing at what comes out of an old gas tank. you could get a new tank too.

i drop my tank a few times and blew out old gas out of the lines too.

toss a filter before and after pump (before carb) and check regularly.

i'm gonna get the eastwood stuff soon. gonna be moddin the tank for an MSD Atomic EFI throttle body with an in-tank fuel pump from tanksinc.com sometime soon i hope.


watermelon
 
Yeah, I'd drop the tank, but I a) don't have a lift and b) can't put the car on stands as the driveway is slanted. I can't work in the garage because there's not enough space as I share it with another tenant!

The idea of the fuel filter before the pump seems like a good idea, but will that start to restrict the flow?
 
I was having the same issue as you with the rust sediment. I didn't realize I had a problem until I ran the tank nearly dry resulting in lots of crap in my carb. I just dropped my tank yesterday with the intention of getting it cleaned/sealed at a local radiator shop... not sure yet if I should even take it to the radiator shop now since I just discovered a few pin holes after I pressure washed out the inside.
 
The arguement can rage about flushing vs replacing. But what I plan to do to mine is get a new tank and immediately send it out and get it coated on the inside. It will never rust then. It's your decision and your money. Do you want to do it once or more than once?
 
The arguement can rage about flushing vs replacing. But what I plan to do to mine is get a new tank and immediately send it out and get it coated on the inside. It will never rust then. It's your decision and your money. Do you want to do it once or more than once?

I would agree... That option is looking like the way to go by the minute. Especially since you can find them online for $165 (shipping included). I would imagine that by the time a radiator shop is done with brazing and sealing, it would likely add up to at least a $100 or so.
 
You can manage the sediment by getting some good magnets and place them at the lowest part of the outside of the tank. This doesn't meen you don't still need to replace it but it'll at least meens you can enjoy the rest of the season before doing something about it.
 
I was having the same issue as you with the rust sediment. I didn't realize I had a problem until I ran the tank nearly dry resulting in lots of crap in my carb. I just dropped my tank yesterday with the intention of getting it cleaned/sealed at a local radiator shop... not sure yet if I should even take it to the radiator shop now since I just discovered a few pin holes after I pressure washed out the inside.

if you found pin holes, a new tank is the answer. it will be just as bad all over just waiting to let go.

.02 cents
 
You can manage ferrous sediment in that way. Anything else, no. But it would certainly help. Similar to a magnet in a transmission pan or magnetic plugs in oil pans. Probably work pretty well.

You can manage the sediment by getting some good magnets and place them at the lowest part of the outside of the tank. This doesn't meen you don't still need to replace it but it'll at least meens you can enjoy the rest of the season before doing something about it.
 
Great advice. Thanks everyone.

I think what I'm gonna do is put an additional filter b4 the pimp, throw some magnets on the bottom of the tank until I get that new tank (very soon)
 
once you get all your new parts just borow a flat place to do it from a freinds house.only takes about couple of hours at most to change out.if worst comes to worst,should only cost about $150 to have a good shop change out your parts.
 
A new tank is the answer here. If it is in the budget a new sending unit should be added for the new tank. If everything is original, I would replace all the lines too, they will also be rusted on the inside. So if it were mine, a new tank, sending unit, new lines from front to back and new filters.If you do all this, you will have nice clean gas going into that carb. Yes these old cars are expensive and worth all the money we spend on them.
 
I noticed that some tanks have the 2 little nozzles by the sending unit hole. I have a '69 Satellite. I want the tank without the 2 nozzles, right?
 
You mean your car is so rusty that even the gas in the tank is rusting? Badda-boom!

New tank is a sure fix. For the price of $200.00 it may not make sense to even clean it out.
 
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