| Re: [GMCnet] 4.8 MPG [message #324188 is a reply to message #324184] |
Fri, 22 September 2017 09:40   |
James Hupy
Messages: 6806
Registered: May 2010
Karma:
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Senior Member |
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Hmmmm. I seem to remember Randy and George replacing cylinder heads
somewhere in the middle of a cross country trip because of a "lean cruise
experiment". I for one, will back the timing down a bit, and go with a rich
fuel mixture on my coach. A couple of miles per gallon is not worth a
beside the road overhaul to me. But, what the heck, America is still a free
country, spend your retirement income any way you choose, before the
Government figures out a way to extract more money from you by taxing that
too.
Jim Hupy, In Canada at Harrison Hot Springs with a bunch of our GMC friends.
On Fri, Sep 22, 2017 at 7:16 AM, Gerald Work wrote:
> Hi Rob,
>
> I'm glad it is working for him as he is a good friend and I respect his
> ability to diagnose on the fly if something were to go wrong at those lean
> a/f ratios. I doubt that the majority of our owners, including me, could,
> so I preferred to run both of our coaches richer for the kind of driving we
> do/did. I will gladly pay a bit more for fuel to avoid having to replace
> engines.
>
> Larry's findings about a bad canister causing icing on his set up is also
> interesting for this conversation. Our coaches show so many variations at
> this ripe young age of 40 that it I find it hard to diagnose much of
> anything without being hands on. Guess that is why I approached both our
> GMCs with such conservatism.
>
> Jerry
>
> Jerry Work
> The Dovetail Joint
> Fine furniture designed & hand crafted
> in the 1907 former Masonic Temple building
> in historic Kerby, OR
> http://jerrywork.com
> .........
> Date: Thu, 21 Sep 2017 20:32:00 -0500
> From: "Rob Mueller"
> To:
> Subject: Re: [GMCnet] 4.8 MPG
> Message-ID:
> Content-Type: text/plain; charset="us-ascii"
>
> Jerry,
>
> Randy Van Winkle gave presentation at the Elkhart GMCMI Convention and
> noted that he runs his coach with EFI at that range
> consistently.
>
> Regards,
> Rob M.
> The Pedantic Mechanic
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
> USA '77 Kingsley - TZE 267V100808
> ........
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