Re: Valve spring retainer

Posted by johnoder On 2009/1/6 13:24:31

Just the missing washer on top, Tom. The whole retainer would be considerably more effort in that it is basically a very small part with a very coarse double start thread. The "groove" of the thread is further complicated by being machined on each side or flank of the groove to approximate the radius of the spring's wire diameter.


This was Packard's way of getting a pair of valve springs of the same diameter on each valve.

John Oder