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12-05-2009, 09:41 PM | #1 |
Chemist under the hood...
Join Date: Apr 2009
Location: Fort Erie,ON, Canada
Posts: 617
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V8 or I6 Fuel Tank Sending Unit
I need to buy a new sending unit (the little resistance wire is fried). I know it's 90ohm but when I look in the LMC catalog, they have one for 2BBL and one for 4BBL. In Classic Trucks, they have one for 6 cyl and another for 8.
My truck had a six in it from the factory but has a 283 in it now with a quadrajet carb. Is it a fitting size thing? How can you tell which sending unit will work. Thanks,
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Current fleet: 2013 GMC Sierra, 5.3L, 4x4 1988 GMC Sierra, 305, Auto 1984 Jeep Grand Wagoneer, 360 V8 1997 VW Cabrio, 2.0L 2017 Toyota Rav4, 2.5L Stuff I wish I still had: 2013 Toyota Matrix [RIP] 1967 GMC 910 Fleetside, 283 V8 [1st Love-SOLD] 1987 Jeep Cherokee Laredo 4X4, 4.0 I-6 [SOLD} 1994 Chevrolet Caprice Classic, 5.7LV8 [SOLD] 1995 Chevrolet Astro AWD, 4.3L V6 (RIP) 1998 Chevrolet Suburban 4x4, 5.7L V8 [SOLD] |
12-05-2009, 09:46 PM | #2 |
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Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: V8 or I6 Fuel Tank Sending Unit
6cyl outlets r 5/16 and 8cyl r 3/8
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12-05-2009, 10:03 PM | #3 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: V8 or I6 Fuel Tank Sending Unit
inline 6 is 5/16ths
2 bbl small blocks were 5/16ths 4 bbl small locks were 3/8ths big blocks were 3/8ths GMC only; v6 trucks 3/8ths |
12-05-2009, 10:28 PM | #4 |
Chemist under the hood...
Join Date: Apr 2009
Location: Fort Erie,ON, Canada
Posts: 617
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Re: V8 or I6 Fuel Tank Sending Unit
Ok-Forgive my ignorance but is it he size of the wrench that fits on the fitting or the size of the pipe?
Thanks a lot Cdowns and LH Man!
__________________
Current fleet: 2013 GMC Sierra, 5.3L, 4x4 1988 GMC Sierra, 305, Auto 1984 Jeep Grand Wagoneer, 360 V8 1997 VW Cabrio, 2.0L 2017 Toyota Rav4, 2.5L Stuff I wish I still had: 2013 Toyota Matrix [RIP] 1967 GMC 910 Fleetside, 283 V8 [1st Love-SOLD] 1987 Jeep Cherokee Laredo 4X4, 4.0 I-6 [SOLD} 1994 Chevrolet Caprice Classic, 5.7LV8 [SOLD] 1995 Chevrolet Astro AWD, 4.3L V6 (RIP) 1998 Chevrolet Suburban 4x4, 5.7L V8 [SOLD] |
12-06-2009, 07:46 AM | #5 |
Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,507
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Re: V8 or I6 Fuel Tank Sending Unit
It is the size of the tubing that is used for the lines. The smaller 5/16" tubing has been known to starve a healthy V8 for fuel.
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Tim |
12-06-2009, 10:54 PM | #6 |
Chemist under the hood...
Join Date: Apr 2009
Location: Fort Erie,ON, Canada
Posts: 617
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Re: V8 or I6 Fuel Tank Sending Unit
Thanks-I should have known that answer but I always get confused with what "size" fittings, nuts, bolts, washers etc are. They almost never seem to be the size you could actually measure with a caliper or tape. I think it's even different between "tube" fitting and NPT! Probably a conspiracy to sell more parts and tools! In Canada, we all have to have both sets of wrenches (SAE and Metric).
__________________
Current fleet: 2013 GMC Sierra, 5.3L, 4x4 1988 GMC Sierra, 305, Auto 1984 Jeep Grand Wagoneer, 360 V8 1997 VW Cabrio, 2.0L 2017 Toyota Rav4, 2.5L Stuff I wish I still had: 2013 Toyota Matrix [RIP] 1967 GMC 910 Fleetside, 283 V8 [1st Love-SOLD] 1987 Jeep Cherokee Laredo 4X4, 4.0 I-6 [SOLD} 1994 Chevrolet Caprice Classic, 5.7LV8 [SOLD] 1995 Chevrolet Astro AWD, 4.3L V6 (RIP) 1998 Chevrolet Suburban 4x4, 5.7L V8 [SOLD] |
12-07-2009, 04:45 AM | #7 |
Registered User
Join Date: Mar 2004
Location: CA
Posts: 2,057
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Re: V8 or I6 Fuel Tank Sending Unit
Unfortunately thats the same way here in the U.S. The Snap-On and Mac guys that come to my work takes full advantage of that. I especially love when I have to buy SAE, Metric, 6 point, 12 point, E torx, regular torx, tamper proof torx, Hex drive, and Tripple square sockets. I wish it stopped there but thats not even it!
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