| Warming up engine [message #338627] |
Sat, 10 November 2018 20:17  |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Ever since I did the crossover block off my motorhome takes forever to warm up when its cold. It has a electric choke on it but it takes a long warm up before it can move without stalling. Any ideas on how to help this?
Tom
76 Eleganza 2
455
Tom Geiger
76 Eleganza II
KCMO
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| Re: Warming up engine [message #338630 is a reply to message #338627] |
Sun, 11 November 2018 00:04  |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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There is an electric choke with a thermostat sensor. The normal electric choke works fine in normal situation. But when reallt cold it opens too soon.
I will have to find the part later. But it has been posted in the past.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: Warming up engine [message #338642 is a reply to message #338627] |
Sun, 11 November 2018 11:12 |
DetroitDan
Messages: 51
Registered: March 2017
Location: Taylor, MI
Karma: 0
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On my 455, with the crossover intact, I recently installed the CU1121 Electric Choke Conversion Kit $39.95 from mikescarb.com.
It's powered from the engine generator feed on the center terminal of the isolator.
It's grounded through a temperature sensor that is bolted to an intake bolt.
Set 2 notches lean, it seems about perfect.
I have cold started it in temps from 30F to 75F.
Next year, I might restrict my crossover, but I will never block it.
Dan Wallace
Detroit Metro
1974 Canyon Lands 260
Headers, 3.55, 16"
Floor plan 26-9
Honda 6010
Harrison 4-bag
[Updated on: Sun, 11 November 2018 11:17] Report message to a moderator |
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| Re: Warming up engine [message #338645 is a reply to message #338627] |
Sun, 11 November 2018 14:26 |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Senior Member |
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Ok, took a look at my electric choke, did not see any specific adjustment for winter and summer on it. Do not know about these electric chokes and how to set them. I see little tick marks much like the timing marks on the balancer. The are cast into the metal canister. But I don't see any adjustment tick marks on the cap end cover. So not sure how these get adjusted. I guess I'll try to search the net on how the sdjustment works, maybe I have a less expensive unit on there?
Tom Geiger
76 Eleganza II
KCMO
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| Re: [GMCnet] Warming up engine [message #338647 is a reply to message #338645] |
Sun, 11 November 2018 15:00 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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O.K. Do this in order that I write them.
Cold Engine. (Overnight cold). Remove air cleaner. Observe choke plate. It
should be somewhat open. Pull the throttle back a bit and watch the choke
plate. IT SHOULD CLOSE., but not tightly. Touch the choke plate LIGHTLY
with one finger. You should feel slight tension against the finger
pressure.
Now loosen the three screws that hold the choke housing but do not
remove them. You should be able to rotate the choke housing. Watch the
choke plate as you turn the housing and stop turning the housing when the
choke plate just touches closed. Then, touch the choke plate lightly. It
should open and the spring should close it.
Now turn on the ignition, but do not try to start the engine. Watch
the choke, it should very slowly open if it is wired wrong. If it is wired
from the center post of the isolator, it will not receive voltage except
when the alternator produces current.
Start the engine. Do not pump the gas. It should start right up if
things are right. If not, let us know.
Jim Hupy
Salem, Or
On Sun, Nov 11, 2018, 12:27 PM tom geiger wrote:
> Ok, took a look at my electric choke, did not see any specific adjustment
> for winter and summer on it. Do not know about these electric chokes and how
> to set them. I see little tick marks much like the timing marks on the
> balancer. The are cast into the metal canister. But I don't see any
> adjustment
> tick marks on the cap end cover. So not sure how these get adjusted. I
> guess I'll try to search the net on how the sdjustment works, maybe I have a
> less expensive unit on there?
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: Warming up engine [message #338648 is a reply to message #338627] |
Sun, 11 November 2018 15:12 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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With the E choke do you loose the vacuum pull off function or retain that? Over the years I have found that vacuum pulloff setting and function is most important for smooth transition using stock bimetallic choke
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: Warming up engine [message #338650 is a reply to message #338627] |
Sun, 11 November 2018 15:30 |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Senior Member |
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Ok, the electric choke was put in by my local mech, not working with them anymore. Looking at the carb with cleaner off I see the choke plate that is wide open. It does not look like it moves from its vertical position. Looking cliser on its linkage it looks like the armortures are not installed correctly. It looks like they are jambed so that the choke flap is stuck in the wide open position. I've tried to take a picture of it but don't know how to upload it to this site?
Tom Geiger
76 Eleganza II
KCMO
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| Re: [GMCnet] Warming up engine [message #338651 is a reply to message #338650] |
Sun, 11 November 2018 15:42 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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There's your problem. On the choke side of the carb, there is a
counterweight that gets a bit sticky. A spray of carb cleaner, followed by
compressed air, followed by a bit of your favorite spray lube should free
up the linkage. If not, exercise it by hand until it is free to move. This
should free up the choke plate.
Jim Hupy
Salem, Or
On Sun, Nov 11, 2018, 1:31 PM tom geiger wrote:
> Ok, the electric choke was put in by my local mech, not working with them
> anymore. Looking at the carb with cleaner off I see the choke plate that is
> wide open. It does not look like it moves from its vertical position.
> Looking cliser on its linkage it looks like the armortures are not installed
> correctly. It looks like they are jambed so that the choke flap is stuck
> in the wide open position. I've tried to take a picture of it but don't know
> how to upload it to this site?
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: Warming up engine [message #338655 is a reply to message #338627] |
Sun, 11 November 2018 17:30 |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Senior Member |
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Ok, shazam! Adjusted the electric choke, started up the engine and it pulled out and drove without stalling and very little warm up. Thanks guys, worked perfectly!
Tom Geiger
76 Eleganza II
KCMO
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