Author Topic: 1955 Carb fuel bowl level  (Read 175 times)

Online Jeff Rose CLC #28373

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  • Name: Jeff Rose
1955 Carb fuel bowl level
« on: October 02, 2017, 09:03:52 PM »
1955 with the Rochester 4-jet.
Rebuilt the carb and set the floats to spec. I have run the car and have driven it up to about 45 mph. Carb seems ok and idles smoothly (which makes me happy because I haven't rebuilt a carb since hi school). The accelerator pump wasn't working so I pulled the top off. Here is the level in the bowl marked by the screwdriver tip. The car had just run so this would be the full level as the floats shut them off. It just seems low just looking at it. Is this a normal level?
Jeff
Jeff
CLC #28373
1970 Coupe DeVille
1955 Series 62

Offline Art Gardner CLC 23021

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      CLC Member #23021
Re: 1955 Carb fuel bowl level
« Reply #1 on: October 03, 2017, 08:51:54 AM »
Looks a little low to me.  Look at the inspection screw on the right side of bowl. I believe that the fuel level should be at the bottom of the inspection hole, typically.

Float levels need to be set, it looks like.
Art Gardner


1955 S60 Fleetwood sedan

Offline R S Steven

  • Posts: 30
  • Name: R Steven
Re: 1955 Carb fuel bowl level
« Reply #2 on: October 03, 2017, 09:17:50 AM »
How much will the fuel level rise when the floats are placed in the bowl?  To me it looks like the real level is higher when the carburetor is together from the coloring of the walls of the float bowl.
Cheers,
R. S. Steven

Online Jeff Rose CLC #28373

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  • Name: Jeff Rose
Re: 1955 Carb fuel bowl level
« Reply #3 on: October 03, 2017, 09:28:33 AM »
Yes, that is true. Floats will displace fuel and raise the level. Good point.
I don't know that I trust the stain lines on the bowl, however. This was sitting for years and it was held onto the manifold with a whole tube of RTV..... I can't guarantee it was correct before.
Jeff
Jeff
CLC #28373
1970 Coupe DeVille
1955 Series 62

Offline D.Yaros

  • The Gray Lady, a '55 Coupe de Ville
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  • Ed./Pub. Car Collector Chronicles
  • Name: Dave Yaros
Re: 1955 Carb fuel bowl level
« Reply #4 on: October 03, 2017, 12:37:12 PM »
How much will the fuel level rise when the floats are placed in the bowl?  To me it looks like the real level is higher when the carburetor is together from the coloring of the walls of the float bowl.
Cheers,
R. S. Steven
To that one might add:  "If it ain't broke, don't fix it!"
Dave Yaros
CLC #25195
55 Coupe de Ville
92 Allante
62 Olds  

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Online Jeff Rose CLC #28373

  • Posts: 1370
  • Name: Jeff Rose
Re: 1955 Carb fuel bowl level
« Reply #5 on: October 03, 2017, 07:16:27 PM »

To that one might add:  "If it ain't broke, don't fix it!"
[/quote]
That is the problem. I don't know if it's broke or not. I have only driven it a total of 6 miles with very gentle acceleration. I would not have touched it yet but I am in it for the accelerator pump issue. I figured I would ask on the level before I put the top back on.
Jeff
Jeff
CLC #28373
1970 Coupe DeVille
1955 Series 62

Offline Art Gardner CLC 23021

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      CLC Member #23021
Re: 1955 Carb fuel bowl level
« Reply #6 on: October 03, 2017, 07:42:57 PM »
Heck, just double-check the float measurement.  If it is in spec, button this back up and don't worry about it.  If you are still concerned, run the engine for a bit and then shut it off.  Remove the inspection screw and look at the fuel.  Like I said, it should be close to the bottom of the inspection hole...
Art Gardner


1955 S60 Fleetwood sedan

Online Jeff Rose CLC #28373

  • Posts: 1370
  • Name: Jeff Rose
Re: 1955 Carb fuel bowl level
« Reply #7 on: October 03, 2017, 08:44:40 PM »
Ok. I am sorry to have to ask this........ What/Where is the inspection screw?
Is it this?
Jeff
CLC #28373
1970 Coupe DeVille
1955 Series 62

Offline Roger Zimmermann

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  • Name: Roger Zimmermann
Re: 1955 Carb fuel bowl level
« Reply #8 on: October 04, 2017, 01:52:50 AM »
Yes, it is!
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham
1972 Coupe de Ville (not yet arrived)
2011 DTS
CLCMRC benefactor #101