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Old 11-24-2015, 09:27 PM   #43
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1989 34.5' Airstream 345
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Yep, pretty sure it will, did on mine. Take care in positioning it on the pipes according to the instructions. To get accurate readings.

Sure do like the results of the bead blasting! Is there a finer media or beads?

Cheers Richard
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Old 11-24-2015, 10:21 PM   #44
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Originally Posted by tevake View Post
Yep, pretty sure it will, did on mine. Take care in positioning it on the pipes according to the instructions. To get accurate readings.

Sure do like the results of the bead blasting! Is there a finer media or beads?

Cheers Richard
Just HF glass media in my refurbished Deeblast unit...
Before...


After..


Now need to figure out how to protect the raw metal inside the tank unit from the ravages of rust AND fuel vapor!
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Old 11-24-2015, 10:46 PM   #45
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YOWZA. LOVE THE COLOR! Must be nice to have that in your shop.

Isn't there some sort of material used to mask off parts that you don't want to blast? Maybe that could be used to cover the interior walls.

Cheers Richard
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Old 12-01-2015, 10:01 AM   #46
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My $22 sender arrived... Will post how that goes later today!
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Old 12-01-2015, 01:35 PM   #47
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Have to admit my attempt to buy an alternate sender from another Chevy tank resulted in failure. The sender couldn't be removed and transferred from the new sender to the old without welding....
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Old 12-01-2015, 03:12 PM   #48
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Martin, its done, it works fine, but it needed some cutting of the sender, but no welding. I will post the story and pics later!
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Old 12-01-2015, 07:05 PM   #49
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Ok then!

The complete units are out there, as proven by the picture posted by Overlander63.

But me being me, I had already ordered a universal 90 ohm sender off Ebay for $22 shipped.

Here is what that buys you.
Sender, gasket, screws and instructions.


Comparing the sender with the original feed pipes with the original NF sender looks like this.


Removed the new sender from its mounting plate....


I read the instructions...
My tank is 14" deep.


Marked the float arm 7 5/8" from the float.
Added 3/4" and cut it off. Then bent the arm 90deg at the 7 5/8 mark.


New float length on left, and waste part on right!


As per the instructions for a 14" deep tank, I loosed the mounting screws for the sender/pivot and slid it up the mounting strip until the float pivot was 7" from the underside of the top mounting plate. Then I cut off the excess, as it would hit the bottom of the tank.


7".
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Old 12-01-2015, 07:20 PM   #50
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A little adjustment gave me this...
14" would mean the float would be on the tank bottom... I actually adjusted it up a little to make it read empty when it was 1/2" up from bottom of pickup, so I read empty when i have a little left.


And full looks like this.


Then I ran into a problem.
The new sender would foul the tank hole, as indicated by the inner ring of the gasket.
Also note the "Notch" on the gasket... yes, it must be pointing at the outlets, as the holes are not equidistant!


A quick touch on the sander and it was good.


Same on the bracket foot...



Fits now.
Notice I added a steel washer as a spacer under the bracket?
I found that the bracket hit the crimped pipe flanges... see rh of pics, and this just helped it clear.





That was it, so it was test time!
90 ohm full.


Almost 0 empty.


That was it...
So, I mounted it... but marked the pipes for my reference!
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Old 12-01-2015, 07:34 PM   #51
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1982 31' Airstream 310
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Roddyy
I had to repair mine on my 310 diesel.I used a rebuilder that specializes in vintage stuff.Not sure If I have their contact info but there is one on web called Tri Starr LLC
Email is sendingunitguy@gmail.com
They will rebuild using correct Resistor as needed for your gauge.
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Old 12-01-2015, 08:58 PM   #52
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Great work Steve! I think I'm convinced that I'll use the same sending unit on my auxiliary tank.

Only issue now with my auxiliary tank is I need to find a siphon tube for the generator suction. Whoever built the aux tank didn't bother adding a generator tap and I'd like to add that feature.

Seems I'm always looking for some odd off the wall part for my Argosy!

Brad
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Old 12-01-2015, 10:03 PM   #53
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Cant beat the price!
It was a little work, but if it was easy it would be boring!
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Old 12-12-2015, 12:04 PM   #54
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Another sender related question popped up!

My dash has a "Low Fuel Warning Lamp".... but I have no idea how it works... or even if it worked ever!

On my Alfa, there are 2 wires going to the sender, one for the fuel level and the other that is triggered by a contact on the sender...

Is it possible that somehow the low fuel is triggered by a set resistance?
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Old 12-12-2015, 12:53 PM   #55
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My 310 had the same issue with the low fuel level indicator. Never did find out how it was supposed to work.they were supposed to work.

The funniest had to do with the water in diesel indicator. At random times it would flash on and stay on for a while and then turn back off. Never did figure that one out either

Brad
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Old 12-12-2015, 01:00 PM   #56
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Brad, I have the same issue!
As far as i can know, water in fuel is pretty much a diesel issue... and now, having been through every inch of my gasoline supply system, I have seen nothing to trigger that light anyway... but as you know, previous owners and shadetree mechanics have messed with many things!

I will take a close look at the wiring to the gauge at some point and report back... I see many mysterious things in the dashboard rats nest!
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