Re: truck clutch drags?

Posted by The tractor vet on September 19, 2012 at 07:35:36 from (75.24.7.240):

In Reply to: truck clutch drags? posted by mmidlam on September 18, 2012 at 20:06:21:

Well IF i remember correctly on that modle there was a clutch pedal stop that if you had a problem with clutch disengage you were to remove it . Then like others have said check the fire wall for any cracks or flexing . I know the 87-90's had a problem and i had the fire wall crack on my 88 . I just beat it into submission and welded it and added some reinforcement sheet metal . On my 88 Ford it would plum eat a slave cylinder every so often along with the clutch master cylinder And i got to the point that had had both behind the seat as when they went it was always at a bad time and i would have to replace one of them along side the road , Many years back they played this game with Hyd clutches in med. duty trucks and back then they were a pain in the donkey as they were always failing and the diaphragm clutch was a JUNK clutch and now we are back to both . One other thing here that may help you , First check and see if your slave cylinder showes any wetness if it does then replace it also have someone hold the clutch down and see if it bypassing and allowing the release arm to creep back . This can indicate that the master cylinder is bypassing . when bleeding the slave cylinder another trick i learned was to keep the master cylinder full and place a crest wrench on the release lever and pull to just a little to to sorta release the clutch just a whisker let gravity do the bleeding keep the master cylinder full at all times and when the last air bubble comes out close the bleeder keeping pressure on the wrench and have your helper replace the cover cap then release the wrench after the cap is back on. Did i mention that Hyd clutches are a pain in the donkey and they are plum JUNK.

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