Re: Valve tappet clearance

Posted by JerryCPP(WA) (PIC) on October 23, 2009 at 14:52:00 from (71.115.236.186):

In Reply to: Re: Valve tappet clearance posted by Billderr on October 22, 2009 at 15:06:35:

I've been away from the machine shop/parts business for 25 years, but when i was there we asked the same question. Answer? They already have the equipment to build the original valves, so why change? A sodium filled valve stem conducts heat away from the valve head far better than solid metal. Sodium filled valves were quite common in the big and industrial engines, and in many aircraft engines of the time.

Replies:

Add a Reply Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Optional Video Title: Optional Video URL: Advanced Posting Options Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.   Advanced Posting Tools   Upload Photo  Select Gallery Photo  Return to Post