[Fot] Alloy Valve Spring Retainers for TR6

[Jack W. Drews]

I had strange things going on in my valve train and finally figured 
out that it was the valves slowly pulling through the retainers. 
Titanium for me, got them from BFE last year.

At 12:43 PM 5/8/2007, chasgee at aol.com wrote:
>I'm with Bill on this one.  Get titanium ones.  I've had failures 
>with the aluminum retainers, and I believe they were made from 7075, 
>about as strong as you can get.  Contact Jerry Barker, he's on this 
>list and should be able to help since they are the same as Spitfire.
>Chuck Gee
>Blacksmith Racing
>Spitfire
>
>
>-----Original Message-----
>From: Guyots3 at wmconnect.com
>To: fot at autox.team.net
>Sent: Tue, 8 May 2007 8:15 AM
>Subject: [Fot] Alloy Valve Spring Retainers for TR6
>
>
>I understand the reasons for fitting alloy valve spring retainers, and the
>advantages.
>
>I also know that in the past, I have heard reports of failures of those sold
>by Moss, dropping valves into the engine with obviously disastorous results.
>
>Looking at what is available on the market these days, from all kinds of
>sources.
>
>I see many vendors merely referring to them as 'Alloy', which tells us very
>little, whereas one calls them 'Aircraft Alloy' - still a very broad cover-all
>term.
>
>One calls them 'T6061', and yet another calls them '7075'.
>
>These are both 'aircraft alloys' and the 7075 has a much greater tensile
>strength than the T6061.
>
>Does anyone have any actual experiences, both good and bad of using different
>suppliers alloy valve caps?
>
>If you do, then please tell me!
>
>I am afraid that I have little faith in companies that do not give proper
>technical descriptions of their products, especially critical ones, such as
>valve
>retaining caps and/or cam followers.
>
>Thanks in advance for any help provided.
>
>Best Regards
>
>Lion
>
>
>
>
>
>
>
>
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uncle jack 



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