Buffarea
Well-Known Member
The tiny little wires in my sender are broken. It's a carb'd car and uses the aluminum pickup/sender tube. Is it possibly shared with any f.i. cars or repairable?
72 Bav-fuel sender shared with any later models?
- Thread starter Buffarea
- Start date
Unique to e3 and yikes, over $300! (#62161350272) More than twice the e9 part price. Most likely repairable at places like North Hollywood Speedometer and others.
fuel sender
Call Greg Lavalle at Lavalle's Import Restoration. I know that he has at least a couple e3's at his place, and would probably sell you one cheap. Tell him I sent you. 336.323.12three2. Good luck, Dave
Call Greg Lavalle at Lavalle's Import Restoration. I know that he has at least a couple e3's at his place, and would probably sell you one cheap. Tell him I sent you. 336.323.12three2. Good luck, Dave
McGiver Bav fuel sender repair
http://www.lesliewong.us/blog/2009/07/26/bmw-fuel-sender-repair/
The resistance can vary by wire size. Try 30ga. Should be real close like Wong. Or mike the wire guage. There once was resistance wire if you can find it at electronic stores.
http://www.lesliewong.us/blog/2009/07/26/bmw-fuel-sender-repair/
The resistance can vary by wire size. Try 30ga. Should be real close like Wong. Or mike the wire guage. There once was resistance wire if you can find it at electronic stores.
Buffarea
Well-Known Member
Good news!
First of all, the reason I took the sender out was due to an intermitant fuel starvation issue. Upon removing the tank and sender, I found 3 dime sized pieces of I don't know what, but almost like white cloth which were apparently clogging the pickup sometimes.
I had read about a filter on the end of the pickup/sender housing and when I removed the tin tube the wires were hanging and I had obviously broken them in the process. ( I believe the filter was a disc shape just on the bottom of the tube but mine is missing)
Today I again dismantled it and found the wires to be ALMOST long enough to reattach. I simply bent the solid tabs in towards the wires just enough to gently wrap around one time and soldered them back on.
Voila! The fuel gauge is again functioning!
http://
http://
Thanks for the replies!
First of all, the reason I took the sender out was due to an intermitant fuel starvation issue. Upon removing the tank and sender, I found 3 dime sized pieces of I don't know what, but almost like white cloth which were apparently clogging the pickup sometimes.
I had read about a filter on the end of the pickup/sender housing and when I removed the tin tube the wires were hanging and I had obviously broken them in the process. ( I believe the filter was a disc shape just on the bottom of the tube but mine is missing)
Today I again dismantled it and found the wires to be ALMOST long enough to reattach. I simply bent the solid tabs in towards the wires just enough to gently wrap around one time and soldered them back on.
Voila! The fuel gauge is again functioning!
http://
http://
Thanks for the replies!
UsAndThem
New Member
I just finished repairing the fuel sending unit on my E3. It had the same broken wire issue. Although I didn't have any luck finding resistance wire locally, I did find some on ebay. I ended up using 40 ga nichrome and then added a resistor in parallel (external of tank) to get the resistances right... works just like new. I think the single wire can be regular solid core copper wire. I also have some extra wire if someone needs some.
Brian
Brian
Buffarea
Well-Known Member
Could you snap a pic of the resistor and which wire it is on? As it turns out my gauge will sometimes hang up near 1/4 tank so I am gonna redo it with new wire.
Thanks
Thanks
UsAndThem
New Member
I can post a pic this evening when I get home from work. The resistor I added is outside of the sending unit across the gauge (yellow-tan) and ground (tan) terminals (the picture should clarify).
Factory spec for the fuel sender is 3.2 ohms (full tank) & 73.7 ohms (empty tank). When I replaced the resistance wire I had 6 ohms (full) & 100 ohms (empty). Placing a resistor in parallel with the sending unit will lower the empty tank resistance while maintaining the full tank resistance. Adjusting the empty tank value using a resistor in parallel works only if your empty tank resistance is larger than the desired resistance.
In my case, using a 330 ohm 0.5 watt resistor in parallel with the 100 ohm changed my empty tank resistance value to 75.6 ohm
This is what worked for me...
Brian
Factory spec for the fuel sender is 3.2 ohms (full tank) & 73.7 ohms (empty tank). When I replaced the resistance wire I had 6 ohms (full) & 100 ohms (empty). Placing a resistor in parallel with the sending unit will lower the empty tank resistance while maintaining the full tank resistance. Adjusting the empty tank value using a resistor in parallel works only if your empty tank resistance is larger than the desired resistance.
In my case, using a 330 ohm 0.5 watt resistor in parallel with the 100 ohm changed my empty tank resistance value to 75.6 ohm
This is what worked for me...
Brian
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