[Gmecm] dual tank issue

[Scott Pearson]

A friend of mine has an 87 K10, 5.7L TBI with dual tanks. 65,000 mile 
original truck.

Scott

----- Original Message ----- 
From: "Tim Ganger" <timganger at tganger.com>
To: <gmecm at diy-efi.org>
Sent: Thursday, February 09, 2006 2:29 PM
Subject: RE: [Gmecm] dual tank issue


>
> GM Pickup's that were equipped with TBI with out exception had one fuel
> tank. Not until you get to the larger trucks i.e. C50-70 series did they
> have duel tanks. In that case the left tank was used to supply the EFI
> system. The right tank had an electric fuel pump that transferred the fuel
> into the left tank. On the bulkhead you will find a "Fuel tank leveling
> module". Basically what it did is compare the fuel senor levels. When the
> left tanks was 25% lower than the right the pump turned on and transferred
> the fuel.
>
> If you can find in the scrap yard a 89-95 truck, the parts should be 
> there..
>
> Good luck
> Tim g
>
>>If you can find an 87 with dual tanks to get parts from, that would be the
>>best way to do it.
>
>>Scott
>
>
>> Cory,
>>    I've looked into this in the past.  I helped update a '75 crew cab
>> with a '87 TBI a few years ago.  JC Whitney also has a solution for dual
>> tanks for fuel injected motors.  We never tried it, since we couldn't
>> find a 2nd fuel tank locally at a wrecking yard.  Since the 1/2 tons
>> only had fuel injection for one year with the '73 body style (saddle
>> tanks) they turned out to be hard to find.  The senders will fit in the
>> non fuel injected tanks, but they dont' have baffles in them to prevent
>> the pump from cavatating during cornering and acceration.  I believe the
>> 3/4 ton and 1 tons used the '73-87 body for more years, but I don't know
>> the details.  Incidentally, my friend's truck gave up its motor to
>> another vehicle and he is now parting it out, including one TBI fuel
>> tank for a '73-87 truck, with a 2 yr old TBI pump and sender.  If you
>> live close enough (we live in SE Washington State) it may be something
>> you would want.
>>
>> Here's the link for the dual tank kit at JC Whitney.
>>
>> http://www.jcwhitney.com/autoparts/Product/tf-Browse/s-10101/Pr-p_Produc
>> t.CATENTRY_ID:2005712/showCustom-0/p-2005712/N-111+10201+600002072/c-101
>> 01
>>
>>
>>
>>
>> -----Original Message-----
>> From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On
>> Behalf Of Cory Frey
>> Sent: Wednesday, February 08, 2006 8:17 PM
>> To: gmecm at diy-efi.org
>> Subject: [Gmecm] dual tank issue
>>
>>
>>
>> Sorry if this has been asked in the past. I am new to the list and
>> thought before I pull the rest of my receding hairline out I would ask
>> if anyone has run into this problem.
>>
>>
>>
>> I am retrofitting an 82 chevy truck with an 88 chevy truck TBI EFI. The
>> truck has dual tanks and I wanted to know how any of you worked this
>> out.
>>
>>
>>
>> I saw a kit that Jeg's sells for their holley TBI to get it done.
>> However for $200 bucks it just seems a little steep to me. If someone
>> could point me in the right direction I would really appreciate it. Also
>> I might add I don't have a problem spending the $$ on the Holley
>> solution if that's what it takes. I am just looking to get the most bang
>> for my $$
>>
>>
>>
>> Thank you in advance
>>
>>
>>
>> -Cory
>>
>>
>
>
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