My Street Demon install experience

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watchdoc said:
Took about an hour to remove the tank. Mine is an early 71 tank with 4 vent lines. Bottom of the tank looked pretty good but the walls have a thick coat of rust. I have elected to order a new Spectra Premium CR11D tank.

WHAT ELSE SHOULD I ORDER???? sending unit? filler neck to tank seal?

The filler neck looked pretty good. Just needs some light cleaned up.

Tank pad looks ok. I think I can peel it off and reuse.

Gas guage doesnt work and the original sending unit looks pretty nasty. Are all the aftermarker sending units junk????

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Yes, all aftermarket sending units are not calibrated accurately for all makes and models. However, they can be calibrated to be fairly accurate. But, it takes a lot of adjusting, adjusting a dozen more times after the first dozen times. A rain dance from midget **** stars, some pixie dust from the moon sprinkled on them and a few other things I am forgetting. But, they can be made to work. They’re all the same. China
 
pishta said:
sounds like the rebuilder F'd up. I like that Street Demon design myself. I feel the TQ was the leading edge in carburetor design when it was introduced.
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No, I put them in there. I think this was one that got a pair of the floats made upside down before I caught what was going on. There's still a lot of them out there, so you have to be careful.
 
RustyRatRod said:
No, I put them in there. I think this was one that got a pair of the floats made upside down before I caught what was going on. There's still a lot of them out there, so you have to be careful.
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OOF, this guy caught them too! That's some bad luck there.....@0:36
 
pishta said:
OOF, this guy caught them too! That's some bad luck there.....@0:36
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What's so bad is, there were both the brass and nitrofil floats that were produced upside down.
 
So I got the tank and sending unit ready to install. The last 6 to 8" of the fuel filler neck that protrudes into the tank was kinda krusty so I sanded, filed, and got as much of the crud off as I could. My question is....

Should I replace the fuel filler neck too or just clean it up and call it a day?

If replace, who has the filler neck for a 71 Dart Swinger with the 4 vent line tank?
 
I just cleaned up the filler neck on my car when I installed a new tank and feed line. I'm all for replacing parts when they need it or could affect performance, but in this case I called it good.
 
watchdoc said:
Ok, so it clogged another filter in about 20 miles of driving so looks like I’m gonna have to drain/remove/clean or possibly replace the tank. Now I gotta figure out how to drain, filter, and store about 8 to 10 gallons of gas til this gets done.
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I wouldnt use that polluted fuel. maybe in my old pickup,but it has a big gas filter.
Guess if you want to save the gas, then get a Mr Funnel. They are about the best for straining gas.
 
Tooljunkie said:
I wouldnt use that polluted fuel. maybe in my old pickup,but it has a big gas filter.
Guess if you want to save the gas, then get a Mr Funnel. They are about the best for straining gas.
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It ended up being about a gallon of gas. I filtered it thru a couple paint strainers and I'll just use it in the mower.

New Spectra tank installed and new pick up. The trash from the tank killed the new fuel pump too so I replaced it. Engine runs good now. Gonna retune idle mixture and fix an oil leak and figure out how to get the power steering bled and I'm ready to cruise!!!
 
watchdoc said:
It ended up being about a gallon of gas. I filtered it thru a couple paint strainers and I'll just use it in the mower.
New Spectra tank installed and new pick up. The trash from the tank killed the new fuel pump too so I replaced it. Engine runs good now. Gonna retune idle mixture and fix an oil leak and figure out how to get the power steering bled and I'm ready to cruise!!!
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Power steering doesent usually need to be bled. If its airlocked,engine off and wheels off the ground. Crank wheel end to end.
 
watchdoc said:
Took about an hour to remove the tank. Mine is an early 71 tank with 4 vent lines. Bottom of the tank looked pretty good but the walls have a thick coat of rust. I have elected to order a new Spectra Premium CR11D tank.

WHAT ELSE SHOULD I ORDER???? sending unit? filler neck to tank seal?

The filler neck looked pretty good. Just needs some light cleaned up.

Tank pad looks ok. I think I can peel it off and reuse.

Gas guage doesnt work and the original sending unit looks pretty nasty. Are all the aftermarker sending units junk????

View attachment 1715482225

View attachment 1715482226
Click to expand...
Your insane for replacing that tank. There’s absolutely, nothing wrong with it. It’s in incredible condition. All you have to do is buy a couple gallons of Evaporust. Slosh it around in there for a couple days. The rust will be gone. If you feel very frisky. Seal it with a $20 can of Por-15 tank sealer. Add 2 filters. I’m all for replacing a tank when it needs to be. But, that’s a total waste of money considering it’s condition.
 
pearljam724 said:
Your insane for replacing that tank. There’s absolutely, nothing wrong with it. It’s in incredible condition. All you have to do is buy a couple gallons of Evaporust. Slosh it around in there for a couple days. The rust will be gone. If you feel very frisky. Seal it with a $20 can of Por-15 tank sealer. Add 2 filters. I’m all for replacing a tank when it needs to be. But, that’s a total waste of money considering it’s condition.
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Not insane. Add in at least half a day of screwing around dealing with chemicals and you're well on the way to a new tank. Some things just aren't worth messing with unless you absolutely have to. I'm all for saving parts, but this is an easy decision.
 
pearljam724 said:
Your insane for replacing that tank. There’s absolutely, nothing wrong with it. It’s in incredible condition. All you have to do is buy a couple gallons of Evaporust. Slosh it around in there for a couple days. The rust will be gone. If you feel very frisky. Seal it with a $20 can of Por-15 tank sealer. Add 2 filters. I’m all for replacing a tank when it needs to be. But, that’s a total waste of money considering it’s condition.
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Oh I'm clearly insane but that's beside the point. New tank and sending unit are working great. The Spectra tank fit beautifully and the sending unit sealed just with with the Spectra locking nut and a lil gasket dressing for good measure. On the to the next project!! I will save the old tank just in case.

Thank you to everyone for your tips and advice.
 
sireland67 said:
Is the car running good now?
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yep, took a nice long drive. Still need to do some fine tuning on the carb, choke, and kick down but I’m definitely at a good baseline now.

so in summary. New tank, new sending unit, new carb, new fuel pump, new fuel filters. About $550 for everything.
 
watchdoc said:
yep, took a nice long drive. Still need to do some fine tuning on the carb, choke, and kick down but I’m definitely at a good baseline now.

so in summary. New tank, new sending unit, new carb, new fuel pump, new fuel filters. About $550 for everything.
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I've seen many members pay more than that just for a carburetor...
 
When you get real brave try tuning two...
IMG_20200320_164950.jpg
 
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