cxn613 Posted August 7, 2015 Share Posted August 7, 2015 1995 cl w/427 air clutch stays engaged even when you take air from it. Quote Link to comment https://www.bigmacktrucks.com/topic/41272-fan-clutch-stuck/ Share on other sites More sharing options...
cxn613 Posted August 7, 2015 Author Share Posted August 7, 2015 Or im thinking it takes air to disengage it. There is air going to it but still runs Quote Link to comment https://www.bigmacktrucks.com/topic/41272-fan-clutch-stuck/#findComment-299305 Share on other sites More sharing options...
hatcity Posted August 8, 2015 Share Posted August 8, 2015 clutch is shot.dump all the air in the system. if fan does not turn freely-it's shotit's a PIA, but can be done by one person in a short day Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/41272-fan-clutch-stuck/#findComment-299350 Share on other sites More sharing options...
cxn613 Posted August 8, 2015 Author Share Posted August 8, 2015 Thanks. So I've read were cummins and the other ones use air to disengage the clutch, does mack do the same or does it take air to engage? Quote Link to comment https://www.bigmacktrucks.com/topic/41272-fan-clutch-stuck/#findComment-299353 Share on other sites More sharing options...
MHfred Posted August 8, 2015 Share Posted August 8, 2015 My 89 MH takes air to disengage. Quote Link to comment https://www.bigmacktrucks.com/topic/41272-fan-clutch-stuck/#findComment-299357 Share on other sites More sharing options...
Challenger Posted August 8, 2015 Share Posted August 8, 2015 Air disengages the fan clutch. Quote Link to comment https://www.bigmacktrucks.com/topic/41272-fan-clutch-stuck/#findComment-299402 Share on other sites More sharing options...
riderman523 Posted August 12, 2015 Share Posted August 12, 2015 On my old granite there was a fuse under the hood on drivers side..if the fuse was blown or taken out the fan would stay engaged Quote Link to comment https://www.bigmacktrucks.com/topic/41272-fan-clutch-stuck/#findComment-299911 Share on other sites More sharing options...
mackey58 Posted October 14, 2015 Share Posted October 14, 2015 What does a clutch for an ai 427 run? Quote Link to comment https://www.bigmacktrucks.com/topic/41272-fan-clutch-stuck/#findComment-307489 Share on other sites More sharing options...
MHfred Posted October 14, 2015 Share Posted October 14, 2015 I just priced a new fan clutch for my 1989 MH and it was a little over $600. I am now looking for a rebuild kit. Quote Link to comment https://www.bigmacktrucks.com/topic/41272-fan-clutch-stuck/#findComment-307491 Share on other sites More sharing options...
mackey58 Posted October 15, 2015 Share Posted October 15, 2015 Never thought about a rebuilt kit tks Quote Link to comment https://www.bigmacktrucks.com/topic/41272-fan-clutch-stuck/#findComment-307495 Share on other sites More sharing options...
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