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New clutch in newly overhauled 3000 is causing engine to stall as soon as the pedal is applied. I believe it has to do with the through out which is not really a bearing, but more of a graphite friction device. I need for this to go away. Will more miles on the clutch be the solution? If so, how many?
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New Clutch In 63 3000....engine stalls
- Thread starter bnw
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anthony7777
Yoda
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bnw, whats your idle speed set at?
Keoke
Great Pumpkin
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New clutch in newly overhauled 3000 is causing engine to stall as soon as the pedal is applied. I need for this to go away. Will more miles on the clutch be the solution?:
NO!!!,
It is characteristic of the Healey engine to stumble or stall when energising the clutch if the engine has been improperly tuned:
1]Idle speed too low
2] Carburetion improperly adjusted
3] Tining improperly set
----------------------------------Keoke
NO!!!,
It is characteristic of the Healey engine to stumble or stall when energising the clutch if the engine has been improperly tuned:
1]Idle speed too low
2] Carburetion improperly adjusted
3] Tining improperly set
----------------------------------Keoke
Offline
Or the engine's thrust washers are bad or badly installed.
Bob_Spidell
Yoda
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bnw said:
Start the engine, get it warmed up till it's running smoothly, then have someone work the clutch while you watch the crankshaft pulley. I don't know the spec--it would be for 'crankshaft end float' or something similar--but I don't think the pulley/crankshaft should move more than a smidgen when the clutch pedal is pushed in. If it moves a lot--to where the fan belt seems to bend--it's an issue with the thrust washers, as Michael suggested.
750rpm is a good all-around idle speed--raising it much more than that is just masking the problem, until something gives up the ghost.
Just saw your last post--I'd still confirm by observing the pulley when the clutch is being operated. Most Healeys will have a few RPM drop when the clutch is pressed.
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The only other thing I can think of is that the throwout bearing is the wrong size and is binding on the input shaft when the clutch is engaging but I still fear it is the thrust washers.
I had a very confounding time when I first rebuilt the MGA engine in my Courier. After disassuembling the engine I measured the old thrust washers and ordered a new set. During assembly whenever I torqued down on the main cap the crankshaft would begin to bind up. Finally I looked at the old thrust washers and found that the top and bottom halves were of slightly different thicknesses: The block had been machined to recieve washers of slightly greater thickness which was the one from which I took my measurement and torquing down the mains was causing the binding. I shaved the bottom half down a couple of thousands and eventually everything came together nicely. We can never assume anything!
I had a very confounding time when I first rebuilt the MGA engine in my Courier. After disassuembling the engine I measured the old thrust washers and ordered a new set. During assembly whenever I torqued down on the main cap the crankshaft would begin to bind up. Finally I looked at the old thrust washers and found that the top and bottom halves were of slightly different thicknesses: The block had been machined to recieve washers of slightly greater thickness which was the one from which I took my measurement and torquing down the mains was causing the binding. I shaved the bottom half down a couple of thousands and eventually everything came together nicely. We can never assume anything!