Coach starts cold PERFECTLY- almost

[dave silva]

Been a long time since i had a carbed vehicle. I had this coach running with seven year old gas and it still ran pretty well. I drained the fuel and
replaced the fuel filter and now it runs much better.

When i turn the key, without touching the gas, it fires immediately and runs for a few seconds before stalling.

To get it to keep running it's a voodoo dance of tapping the gas while calling on the spirit of Mickey Thompson and then it struggles to stay running
for a few minutes until it finds the happy place.

But the fact that it fires instantly without touching the gas suggests that it's set up pretty well so I don't want to mess with anything without some
clear guidance.

Help Me ObiWan (you know who you are)

--
Dave & Ellen Silva

1972 Revcon Olds 455, toro drive train. All Stock

 

[Jim Hupy]

Sounds like the basic choke adjustment must be fairly close to correct.
Also, the carb has fuel in the float bowl. Don't mess with that either. For
now. So, that leaves the fast idle adjustment, along with the electric
choke stove. If the choke stove is powered so that it comes on with the
ignition key "on" position, it may be helpful to move the source of voltage
to a place that gets it's feed from the engine alternator. That will allow
some warm up time before the choke pulls off. The fast idle adjustment is
fairly straightforward . Just turn it up a bit to make the engine run
around 1000 - 1200 rpm until kickdown.
Easy, peasy, grasshopper!
Jim Hupy
Salem, Oregon

On Wed, Oct 28, 2020, 2:55 PM dave silva via Gmclist <

> Been a long time since i had a carbed vehicle. I had this coach running
> with seven year old gas and it still ran pretty well. I drained the fuel and
> replaced the fuel filter and now it runs much better.
>
> When i turn the key, without touching the gas, it fires immediately and
> runs for a few seconds before stalling.
>
> To get it to keep running it's a voodoo dance of tapping the gas while
> calling on the spirit of Mickey Thompson and then it struggles to stay
> running
> for a few minutes until it finds the happy place.
>
> But the fact that it fires instantly without touching the gas suggests
> that it's set up pretty well so I don't want to mess with anything without
> some
> clear guidance.
>
> Help Me ObiWan (you know who you are)
>
>
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

 

[dave silva]

> Sounds like the basic choke adjustment must be fairly close to correct.
> Also, the carb has fuel in the float bowl. Don't mess with that either. For
> now. So, that leaves the fast idle adjustment, along with the electric
> choke stove. If the choke stove is powered so that it comes on with the
> ignition key "on" position, it may be helpful to move the source of voltage
> to a place that gets it's feed from the engine alternator. That will allow
> some warm up time before the choke pulls off. The fast idle adjustment is
> fairly straightforward . Just turn it up a bit to make the engine run
> around 1000 - 1200 rpm until kickdown.
> Easy, peasy, grasshopper!
> Jim Hupy
> Salem, Oregon

And just like that, Obiwan answered.

--
Dave & Ellen Silva

1972 Revcon Olds 455, toro drive train. All Stock

 

[john r. lebetski]

Have you read cold start procedure in owners manual?
--
John Lebetski
Woodstock, IL
77 Eleganza II

 

[dave silva]

> Have you read cold start procedure in owners manual?

I don't have an owners manual but I suppose I should get one. But really, the 'procedure" of turning the key and having it start seems to be working,
pending a little adjustment.

--
Dave & Ellen Silva

1972 Revcon Olds 455, toro drive train. All Stock

 

[d c *mac* macdonald]

If the engine is carbureted, the procedure when engine
is cold is to slowly press accelerator to the floor and then
let up on it slowly. This should set the choke and fast idle.
Then start the engine without touching the accelerator
again. Within maybe 20-30 seconds, the engine SHOULD
have gotten heat up and run fairly smoothly. When it does,
you can then lightly tap the accelerator to let the choke
begin to slowly open. Driving off gently then should be an
easy task for a couple of more minutes.

We have all gotten spoiled with fuel injection and computer
controlled initial throttle settings and need to remember the
"old things."

D C "Mac" Macdonald
Amateur Radio K2GKK
Since 30 November '53
USAF and FAA, Retired
Member GMCMI & Classics
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach
k2gkk + hotmail dot com

________________________________
From: Gmclist on behalf of dave silva via Gmclist
Sent: Wednesday, October 28, 2020 19:59
To: gmclist
Cc: dave silva
Subject: Re: [GMCnet] Coach starts cold PERFECTLY- almost

> Have you read cold start procedure in owners manual?

I don't have an owners manual but I suppose I should get one. But really, the 'procedure" of turning the key and having it start seems to be working,
pending a little adjustment.

--
Dave & Ellen Silva

1972 Revcon Olds 455, toro drive train. All Stock

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