| Re: [GMCnet] Fuel tank Sending Unit [message #76864 is a reply to message #76828] |
Tue, 16 March 2010 19:03   |
gene1
Messages: 50
Registered: February 2004
Location: Southern California
Karma:
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Ken,
I have a 76 here in CA, and it has Fuel Injection, is the 76 you have, have
a good Carb and air cleaner? Price?
Regards, Gene
----- Original Message -----
From: "Ken Henderson" <ken0henderson@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Tuesday, March 16, 2010 9:53 AM
Subject: Re: [GMCnet] Fuel tank Sending Unit
> Certainly some fuel moves into the vent lines, but only up to the level of
> the highest fuel level. That probably never approaches the height of the
> liquid/vapor separator; the only time that should come into play is during
> filling, since the fill tube does go above the separator.
>
> If you look at the last photo, you'll see that on a downhill, the upper
> rear
> of the front tank contains trapped air only in the uppermost corner; in
> actuality, that corner should extend almost down to the center of the
> tank,
> where the vent line allows air to escape. The only diminution of that
> volume should be from slight compression of the trapped air.
>
> JMHO,
>
> Ken H.
>
> On Tue, Mar 16, 2010 at 10:03 AM, Mike Miller <m000035@gmail.com> wrote:
>
>>
>>
>> GMCWiperMan wrote on Tue, 16 March 2010 06:03
>> > Gene,
>> >
>> > I've got a question about the last drawing, showing the Aux tank almost
>> > completely filled when going downhill: With the vent line almost
>> centered
>> > fore and aft on top of the tank, won't the absence of a vent behind
>> > that
>> > point keep the gas from filling much above that level?
>>
>>
>> I am not Gene, but I'll take a shot at this answer.
>>
>> It puts fuel into the vent lines. Probably why they put int a fuel/vapor
>> separator. Other than when you first top off, it probably doesn't happen
>> that often. (How many have driven around with bad gaskets around the
>> fuel
>> senders?) It would take a pretty steep hill.
>>
> ...
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