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Re: O.D./clutch hydraulics (was:looking for a part)



In a message dated 5/15/99 7:40:31 AM Central Daylight Time, 
MikeWattam@domain.elided writes:

<< With the 'A' type overdrive there should be a switch below the base of the
 gearlever which prevents engagement of overdrive in 1st and 2nd gears. 
 This is provided to prevent the increased torque available in the lower
 gears from physically breaking the overdrive (Laycock reasoning).>>

I'll look for the switch.  I assume the reverse lockout switch is in he same 
general location?
 
< You should be able to bleed the clutch just by opening the bleed valve on
 the slave cylinder and letting the fluid work its way through.  However,
 the slave cylinder is often inmcorrectly fitted by DPO the wrong way up,
 with the fluid inlet connection at the top and bleed valve at the bottom. 
 The bleed valve needs to be at the top in order to get all the air out.>

AH HA!  I'll look for that.  
 
 <Then suspect a scored/rusted bore on the slave cylinder which fares badly
 due to closeness to the road, especially if used with Glycol-based brake
 fluid which takes in the moisture very easily and causes corrosion of the
 walls.  Or if you are using a reconditioned slave cylinder, it may be
 bell-mouthed due to over-enthusiastically cleaning off the corrosion - you
 could pull air in every time the clutch is returned.
 
 Otherwise the master cylinder seal is not doing its work and you can check
 this by getting somebody else to depress the pedal while you watch the
 fluid going down (or not!).
  >>

I rebuild the cylinder and it looked O.K., but could be bellmouthed as you 
say.  I'll try the above and let you know.

Thanks,
Frank M.



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