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01-15-2012, 01:15 PM
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#1 |
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Registered User
Join Date: Sep 2009
Location: Pasadena CA
Posts: 51
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Double Pump Clutch
For whatever reason I seem to need to double pump my clutch pedal when shifting gears. No other problem other than it being annoying. So the questions are.
1) what is the possible problem? 2) solution? 3) do I need to pull engine to solve? 4) can I just live with it indefinitely? My guess would be that I would need to drop in a new clutch kit (lmc sells them), but again if that means pulling the engine and the problem is more annoying than bad then I can get a sense of time, priorities. Posted via Mobile Device |
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01-15-2012, 01:30 PM
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#2 |
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Senior Member
Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,497
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Re: Double Pump Clutch
The synchros in your transmission are likely worn. If that is the problem a new clutch will not fix your problem. The transmission will need to be rebuilt or replaced.
What trans is in it, the truck 4-speed?
__________________
Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs. |
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01-15-2012, 01:38 PM
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#3 |
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Registered User
Join Date: Sep 2009
Location: Pasadena CA
Posts: 51
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Re: Double Pump Clutch
Yes, truck 4 speed (65 c20). Any other possibilities to check first?
Posted via Mobile Device |
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01-15-2012, 01:41 PM
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#4 |
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Senior Member
Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,497
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Re: Double Pump Clutch
They are really common, if it was mine I would replace it with a used transmission.
__________________
Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs. |
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01-15-2012, 03:12 PM
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#5 | |
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Registered User
Join Date: Feb 2008
Location: Sidney,b.c.
Posts: 4,425
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Re: Double Pump Clutch
Quote:
I you are double pumping that will tell that you either have air or your fluid is low in the hydr. system double clutching as already been mentioned is that you have a synchro problem or that your clutch has seen better days. you do not have to pull the motor to replace the clutch; one drops the transmission to do that. ron |
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01-15-2012, 03:24 PM
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#6 |
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Registered User
Join Date: Sep 2009
Location: Pasadena CA
Posts: 51
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Re: Double Pump Clutch
65 c20 - so manual clutch I believe. And while I am on the topic, if I do replace, what's the best alternative for ease of replacement or change to a real 4 speed as opposed to the 3 + granny.
Posted via Mobile Device Last edited by BAMO; 01-15-2012 at 03:49 PM. |
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01-15-2012, 08:35 PM
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#7 |
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Senior Member
 
Join Date: May 2007
Location: Doodah Kansas
Posts: 7,774
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Re: Double Pump Clutch
If its not hydraulic and has a cable you should try adjusting it. There is a threaded adjuster on the linkage somewhere
__________________
the mass of men live lives of quiet desperation if there is a problem, I can have it. new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393 |
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