| [GMCnet] Still at It [message #221909] |
Tue, 10 September 2013 09:57  |
glwgmc
Messages: 1014
Registered: June 2004
Karma:
|
Senior Member |
|
|
Wow! What an episode. Sure wish I had a magic bullet for you. The only things you have not commented about are the electrical feeds going to your system. Someone a day or so ago suggested bypassing the ignition switch and I would do the same with the neutral safety start switch at the bottom of the steering column. A wire running straight from the battery to a toggle switch in the drivers compartment and on to the distributor and EFI would at least eliminate anything in the upstream electrical feed. The only other thing I can think of is perhaps something in your surge tank or one of the lines coming from the surge tank to the EFI is blocking fuel flow periodically.
You can always park it and fly out to Medford where we can pick you up and take you to Coos Bay for a cooling off period! (grin)
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR
Visitors always welcome!
glwork@mac.com
http://jerrywork.com
541-499-1027
541-592-5360
..................
Message: 1
Date: Mon, 9 Sep 2013 23:13:36 -0400
From: Ken Henderson <hend4800@bellsouth.net>
Subject: Re: [GMCnet] Still at It
To: gmclist <gmclist@temp.gmcnet.org>
Message-ID:
<CANsh1i2snCfzVJPCb-3jrcmOf1BtU-f5eG4vimLk6x1MAajZ6A@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
Another episode:
Up at 0630, the Honda's flat was fixed by 0820. We hit the bottom of the
steep grade to Monarch Pass at about 1000, with the temperature around
70*F. We disconnected the toad and I attempted the dreaded climb to
11,312' MSL.
With the spare distributor installed (and advanced a bit by vacuum 'cause
it wound up too retarded), I had high hopes of being able to creep to the
top without stopping. And so I did -- in 2nd gear, at 40-50 mph, with part
throttle, speed limited by the curves, not the grade! SHE reported at the
top, "I got tears in my eyes I was so proud..."
I was prepared to give Gordon a great big atta-boy for convincing me to
swap out the distributor. Until about 1300, when, as we cruised across the
4300' MSL high plains, the old "Run a while then rest a while" game started
all over again. :-((
Apparently the Monarch success was all due to the cool temperature, not
anything I did. My last, futile, effort today was to remove the top of the
grille-to-radiator duct I installed some months ago. I was hoping that by
allowing air spillage over the top of the radiator (like OEM), the heat
would be better scavenged from the top of the engine compartment. No
noticeable change at all.
No, the tank vents are NOT plugged. No, unfortunately I am not logging
EBL, nor even monitoring it: My WUD computer died over a month ago, taking
with it my only RS-232 port. I haven't been able to get a 232-USB adapter
for the remaining functional laptop. DON'T I WISH!!! The more symptoms I
see, the more confused I get: Level road, 65 mph, 10-12"Hg (4300' MSL),
AFR 14.7 -- suddenly, the engine rpm bleeds off. With constant throttle,,
vacuum rises; on CC, it drops because the CC opens the throttle trying to
maintain rpm. Sometimes slowing will let the engine catch back up briefly,
or even resume normal operation for a mile or two. Eventually, engine dies
completely. But it may require only a 3 to 5 minute rest before starting
and running fine for another 15-30 minutes; then it wants another rest.
There's never any correlation with bumps or road surface that might
indicate a loose connection. I've reseated most of those too.
One suspect part I have not replaced is the coil. I did disassemble the
one that's installed to examine and refresh all its contacts. Tomorrow
I'll replace it. What more can I do???
Ken Frustrated H.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Jerry & Sharon Work
78 Royale
Kerby, OR
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
