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Massey Harris & Massey Ferguson Tractors Discussion Forum
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MF-690 Help

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TomTX

06-20-2006 16:29:16




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The water pump pulley, which has 2 belt grooves for water pump and fan, and a third single belt groove for the AC compressor belt on my MF690 has eaten out some metal along the woodruff key slot. At the last water pump change, I think the nut which seats the pulley was not tightened good. The water pump shaft has the dish shaped side of the woodruff key, and the pulley has the straight cut key way. Dealer said new pulley is $505, which sent me into shock. Pulley MF part number is 745609M1, Perkins part number is 31154281. Questions. 1. Has anyone ever had a machine cut a new keyway in the pulley, straight 5/32", on the opposite sede of the wallowed out keyway? The water pump shaft is not an issue as I am replacing the pump.
2. Know where to get a used or cheaper pulley?
Many thanks for help.
Tom

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richard in nz

06-21-2006 02:09:46




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 Re: MF-690 Help in reply to TomTX, 06-20-2006 16:29:16  
Take option 1, take the pulley to a local machine shop and get a new keyway cut on the other side of the pulley, as long as the bore is still ok, if not, bore and sleeve,had both done in the past, works well.



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