High idle?
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Freshman User
Joined: Nov 2018
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High idle?
Soo, when I push the clutch in at a stop sign/light She idils high! Almost scary high...I don't have a tach yet. Sometimes I think she's pushing 3-4?? It's like she wants to run..
Would a good hosing of the carb with cleaner lubricant be beneficial. Or is something deeper going on?
Would a good hosing of the carb with cleaner lubricant be beneficial. Or is something deeper going on?
Senior User
Joined: Oct 2004
Posts: 249
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From: Richmond
Soo, when I push the clutch in at a stop sign/light She idils high! Almost scary high...I don't have a tach yet. Sometimes I think she's pushing 3-4?? It's like she wants to run..
Would a good hosing of the carb with cleaner lubricant be beneficial. Or is something deeper going on?
Would a good hosing of the carb with cleaner lubricant be beneficial. Or is something deeper going on?
Thread Starter
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Freshman User
Joined: Nov 2018
Posts: 26
Likes: 0
Idle set screw is totally an option. I am half convinced Grandpa set Baby Blue to run as Grandma drove ...she (Grandma) may or may not have been able to correctly run a stick shift. If your not taught to listen to the engine.....or can't finese the clutch....I don't know.
Wear and tear is my secondary opinion. After Years....closing on 4 decades not sheltered....Baby Blue just needs a shower?
Wear and tear is my secondary opinion. After Years....closing on 4 decades not sheltered....Baby Blue just needs a shower?
Laughing Gas
Joined: May 2006
Posts: 1,140
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From: Port Orchard Wa
I purchased a truck a number of years ago with a shot auto tranny. The fast idle linkage was broken and therefore would not set when choked. So the PO just set the idle screw super high to keep it running when it was cold. Meanwhile, he was burning up the clutch plates everytime he sat at a stop light..................
Lead Driver
Joined: Jul 2017
Posts: 9,606
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From: San Jose, CA
If it hasn't been run a lot and sits more than it's driven (or was at one point) then it might even be your choke high-idle linkage sticking even when the choke butterfly plate is open all the way.
Another thing that comes up suddenly (or after sitting for a long time) are vacuum leaks. It would take a pretty hefty one to cause as high of an idle as you're experiencing though. Normally they start out small and just make for a rough idle. But what if a PCV hose or other type has popped off? Big leak!
Worth checking around under the hood visually at least.
Good luck.
Paul
Another thing that comes up suddenly (or after sitting for a long time) are vacuum leaks. It would take a pretty hefty one to cause as high of an idle as you're experiencing though. Normally they start out small and just make for a rough idle. But what if a PCV hose or other type has popped off? Big leak!
Worth checking around under the hood visually at least.
Good luck.
Paul
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