Engine loading up at idle
Thread Starter
Melting Slicks
Joined: Jan 2001
Posts: 2,016
Likes: 31
From: Little Egg Harbor N.J.
Engine loading up at idle
What would cause an engine to load up? I noticed my car starts to load up when it sits at idle for any length of time.
The car hasn't been driven for quite a while and I'm wondering if that might have something to do with it.
I added some of that Berryman's fuel additive to the tank hoping it might remove any moisture or deposits from the tank / carburetor.
Any thoughts?
The car hasn't been driven for quite a while and I'm wondering if that might have something to do with it.
I added some of that Berryman's fuel additive to the tank hoping it might remove any moisture or deposits from the tank / carburetor.
Any thoughts?
Thread Starter
Melting Slicks
Joined: Jan 2001
Posts: 2,016
Likes: 31
From: Little Egg Harbor N.J.
Originally Posted by Little Mouse
maybe the needle and seat is not cutting off the fuel in the primary
bowl and is stuck.
bowl and is stuck.
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
if its a holley lightly tap on the float adjustment on the primary bowl
this may free it up. Take a wrench an keep lightly tapping it or the
wood end of a hammer. Light taps.
this may free it up. Take a wrench an keep lightly tapping it or the
wood end of a hammer. Light taps.
Last edited by Little Mouse; May 18, 2006 at 07:04 PM.
Thread Starter
Melting Slicks
Joined: Jan 2001
Posts: 2,016
Likes: 31
From: Little Egg Harbor N.J.
Originally Posted by Little Mouse
if its a holley lightly tap on the float adjustment on the primary bowl
this may free it up. Take a wrench an keep lightly tapping it or the
wood end of a hammer. Light taps
this may free it up. Take a wrench an keep lightly tapping it or the
wood end of a hammer. Light taps
Instructor
Joined: Nov 2005
Posts: 160
Likes: 0
From: Hamden CT
Sounds like the power piston may be varnished up , and stuck in the enrichment position with the rods pulled up out of the jets , since it hasn't had any vacuum to pull it down against the spring while the car's been sitting.
Suggest you pull off the air cleaner , and spray some carb cleaner down the vent tube at the front of the carb , which is right over the power piston/rod hanger. Since the airhorn gasket is flapped over the hanger , it will probably take several good shots to get it to seep past the gasket. You can also use a stiff piece of plastic or wood rod that will fit down the vent , and LIGHTLY push down on the hanger in between shots of cleaner. If the power piston is operating freely , you will be able to feel it move down and spring back up with the engine not running.
HTH
Suggest you pull off the air cleaner , and spray some carb cleaner down the vent tube at the front of the carb , which is right over the power piston/rod hanger. Since the airhorn gasket is flapped over the hanger , it will probably take several good shots to get it to seep past the gasket. You can also use a stiff piece of plastic or wood rod that will fit down the vent , and LIGHTLY push down on the hanger in between shots of cleaner. If the power piston is operating freely , you will be able to feel it move down and spring back up with the engine not running.
HTH
