| Moderated by: Greg Fletcher | ||
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Don McKeever Member
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I just started her up and noticed the fan and pulley moves a little in all directions. Is this normal or do I have a bigger problems? How is the fan and pully mounted? Any help would be great so the old girl can get out on the road. Very short summers in northern minnesota. Thanks, Don |
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John Finch Member
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Dan, where in Northern MN? I am in Brooklyn Park. (cities). John |
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John Finch Member
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Dan 18309 has a Lucas 18ACR alternator. There is a nut holding the pulley and fan on. I've never had the nut off so not sure what happens or is required after removing the nut. Best of luck and let me know where you are at. We might be able to cross paths. John |
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Don McKeever Member
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John, I live in a little town called Schroeder on the north shore of lake superior. If you come up the shore stop in. Don |
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John Finch Member
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Don, I used to call on the old LTV power plant. I do work with MP&L Boswell and hope to do work with both Tac Harbor and Laskin in the future. We'll keep in touch as it would be a great drive up to see you sometime. John |
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Mark Rosenbaum Member 
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The fan and fan pulley bolt to the flange on the front of the water pump. When the hardware holding them in place is tight, the only motion should be rotation. If the pulley is loose, most likely the water pump is in need of replacement. If the pulley seems tight but the fan seems loose, most likely the metal bushings in the hub have come loose. Attached is a line drawing showing an exploded water pump, fan pulley, fan, and various other parts in the area. Attachment: 544 Front Cover late.gif (Downloaded 37 times) |
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Don McKeever Member
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Thanks again Mark it looks like a water pump is in my near future. Any tricks or other things i should do when under the hood? Don |
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Mark Rosenbaum Member
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Don, It's always prudent to check (and, usually, change) the thermostat when you have had a cooling system problem. The JH thermostat is a dual acting type and using the wrong type guarantees overheating. If the old one turns out to have been good, keep it for a spare in case the replacement fails. Under normal conditions, the various coolant-carrying hoses have a four to eight year lifespan. Typical end of life indications are flex cracks near the ends, and/or seepage of coolant from the fabric that separates the inner and outer rubber layers. If you don't know how old your hoses are, it's prudent to budget for their replacement. As for other things to look out for, the shop manual has a very long list of maintenance items that should be performed regularly. Going through the entire list is a good way to end up with a (nearly) trouble-free vehicle, though often at some expense. However, one may have to deal with the end result of decades of deferred maintenance, and with the fact that sometimes a repair in one area exposes previously unsuspected problems in others. |
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