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Sloppy woodruff key on 400 camshaft

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SDE

07-16-2007 16:18:32

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The woodruff key looks good, but one side of the receptacle is chipped and peened over. The key moves about .05.
Let me guess? To repair it,I will need to remove the cam and have it welded and a new slot milled, right?
SDE

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El Toro

07-17-2007 17:06:37

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Re: Sloppy woodruff key on 400 camshaft in reply to SDE, 07-16-2007 16:18:32

Wengers of Myerstown has a used cam and cam gear for $187.00. It has left hand threads too. Hal
1-800-451-5240

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D Slater

07-16-2007 18:05:13

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Re: Sloppy woodruff key on 400 camshaft in reply to SDE, 07-16-2007 16:18:32

You may not have anything to do this with but I have had good luck shaping a oversize key to fit in worn cam. Usualy only one side of cam and keyway is worn so you can figure out where the center lineup is. Try to get cam and gear back in same relationship. If the cam is not out of engine watch and don't push cam back when installing gear. Recommend it be out or have a pusher that screws on front of cam. Sometimes cam gear needs key slot straightend up first before sizing key. Takes time ,trial and error to fit everything tight. If cam has the original right hand threads for cam nut, stake nut to threads after tight. Don't know how far into production your 400 is so if your cam gear # ends with DB instead DA, The DB was machined with a smaller diameter on ID for tighter fit to cam so I would recommend supporting cam behind first cam bearing surface when installing.

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Janicholson

07-17-2007 06:28:32

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Re: Sloppy woodruff key on 400 camshaft in reply to D Slater, 07-16-2007 18:05:13

I would add to your good advice the use of Loctite sleeve mount fluid on a super clean assembly. THis stuff can assist in the retention of the drive gear and prevent the looseness of the components from beginning to happen. (don't put it on the bolt threads, Red loctite will do there. JimN

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SDe

07-18-2007 14:26:52

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Re: Sloppy woodruff key on 400 camshaft in reply to Janicholson, 07-17-2007 06:28:32

Thank you everyone. SDE

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