Rochester quad idle issue
Thread Starter
Racer
Joined: Feb 2010
Posts: 362
Likes: 10
From: nashville tn
Rochester quad idle issue
What would cause an engine to idle up after coming to a stop & then slowly go back to it's normal idle speed . I cannot duplicate this sitting still. I did park on a decline to check and the engine started to idle up, this told me my float was to high so I lowered it to 11/32'' from 3/8'' did it improve - yes some - before I try to lower it again is there something else that could cause this issue.
As always Thanks Mike
As always Thanks Mike
Thread Starter
Racer
Joined: Feb 2010
Posts: 362
Likes: 10
From: nashville tn
What would cause an engine to idle up after coming to a stop & then slowly go back to it's normal idle speed . I cannot duplicate this sitting still. I did park on a decline to check and the engine started to idle up, this told me my float was to high so I lowered it to 11/32'' from 3/8'' did it improve - yes some - before I try to lower it again is there something else that could cause this issue.
As always Thanks Mike
As always Thanks Mike
Thread Starter
Racer
Joined: Feb 2010
Posts: 362
Likes: 10
From: nashville tn
No vac advance. All vac lines capped at manafold for testing carb a yr old Double checked distributor idle on flat ground no problem rev it 2k and hold for a few. No problem let idle & back up hill idle goes high. Drive down the road at 40mph put in neutral idle fine stop at stop sign idle up briefly the does fine. No pwr brakes either. Sorry on phone type no fun. Mike
Thread Starter
Racer
Joined: Feb 2010
Posts: 362
Likes: 10
From: nashville tn
Mike
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Thread Starter
Racer
Joined: Feb 2010
Posts: 362
Likes: 10
From: nashville tn
After stopping at stop sign on flat grade it will idle up for a bit then idle normally with no throttle manipulation or pointed down hill I am baffled
Thread Starter
Racer
Joined: Feb 2010
Posts: 362
Likes: 10
From: nashville tn