|
James, First off, I hope you know the easy way to remove the clutch from the pump. The end of the clutch is threaded in its center hole – it might be 5/8 course thread but could be a little different. Grip the big end plate while turning a bolt
down in those threads. The bolt will strike the end of the compressor shaft and the clutch will pop off. Alternatively you can turn on your key and activate your A/C system without starting the engine. This will hold the pulley while you turn the bolt in –
but that only works if you have the belts on the engine and you have power to the compressor. And watch that you don’t damage the point set as you remove the clutch. The clutch unit you describe is the pre-’60 type - about 7.5” diameter. They work perfectly fine and the bearings are built for the pressure. The belt tension puts more stress on the bearings than the weight of the clutch does. Maybe the
heavy old clutch takes a horsepower off the engine each time it engages, but you won’t really notice it because the pump itself will be under a light load right at that point. And BTW if the plate drags or the coil won’t pull in, you can adjust how close that
end plate is to the coil body. There are three screws on the plate for that. Set the clearance on it such that it just barely does not drag all the way around. If that doesn’t fix it, the coil may have a short in it. I have never seen a “little rubber pickup” with the brushes mounted to it. I have only seen the pair with a stamped mount and coil springs – on the same idea as distributor points. They are very easy to bend or break when putting the clutch
on and off the pump. Be careful, you can’t fix ‘em and they are hard to find available anymore. The rubber mount sounds like an aftermarket solution. I’m not sure the induction type of clutch like you picked up can be mounted to the front of your particular compressor. You have the earlier style of compressor and it may not have the mount points for the coil. I’m sure Mopar made the change for improvements in technology and cost when they went to the induction style. Keith Boonstra - From: 'James Douglas' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Interesting… I pulled the A/C clutch off the 300K yesterday. This is obviously a reman unit as it has part of a reman sticker on it. This unit seems to have the coil ON THE PULLY and spins with it. It has a little rubber pickup that bolts to the side of the compressor housing with two contact points that slide on a copper ring on the unit. This is different that the
core I picked up. The core has a magnet that bolts to the front of the A/C housing and does not move. Can anyone enlighten me as to the reason or and quality issues of the two designs? One thing that I noted is that the unit with the coil that spins is MUCH heavier than the other. I wonder about the clutch housing bearing as well as the front bearing on the compressor with all that weight spinning around. I also would
suspect that the heavier unit would rob more power from the engine. Interesting. James -- For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang --- You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/CH2PR06MB6581833C97551AD312F62710C3929%40CH2PR06MB6581.namprd06.prod.outlook.com. |
Back to the Home of the Forward Look Network
Archive Sitemap