[Fot] TR-4 Valve Spring Cap / Collar dilemma

[Steve Yott]

In addition to this is Triumph seemed to use their own design for the locks.
Normally a lock has a somewhat square shaped ring on the inner surface and
the valves use a matching grove.  Triumph uses a radius lock and matching
radius groove in the valve.  I have never found a usable replacement lock on
the market and keep a supply of used Triumph parts!

IMHO, I would not use any aluminum alloy retainers as they will wear
quickly.  What we need to do is find someone to reproduce the excellent
retainers that Ken supplied...

Steve Yott


-----Original Message-----
From: Fot [mailto:fot-bounces at autox.team.net] On Behalf Of Tony Drews
Sent: Sunday, January 03, 2016 7:16 PM
To: fot at autox.team.net
Subject: Re: [Fot] TR-4 Valve Spring Cap / Collar dilemma

Follow up question - does anyone know the angle of the valve keeper for the
5/16" valve stems?  I'm trying to cross reference to a commonly available
valve spring retainer / collar.

My measurements are showing 5 to 6.5 degrees.  I've found retainers for 7, 8
and 10 degree keepers with either 1.375 or 1.365 OD.  1.375 seems to go with
7 degrees, 1.365 seems to go with 8 or 10 degree.

Interesting detail - the new alloy retainers from Moss don't fit the new
keepers from Moss very well.  I think their retainers are either mislabeled
or for a different combination of parts...

Cheers, Tony

At 06:36 PM 1/3/2016, Tony Drews wrote:
>I'm going through my TR-4 head.  Since BFE seems to be out of action, I 
>purchased aluminum valve spring collars / caps from Moss.  I find that 
>they are smaller diameter than the cool titanium ones I'm running and 
>smaller than my current springs.  Unfortunately, the Titanium ones are 
>wearing and need to be replaced.  I don't have stock parts on hand to 
>compare to, so I'm not sure if the Moss part is undersized or if I'm 
>running larger than normal diameter stuff from Ken.
>
>The valve spring collar I've removed is 1.365" diameter, the outer 
>spring is 1.380" diameter and the alloy spring collar from Moss is 
>1.260" diameter.
>
>Anyone know of a source of lightweight valve spring collars for the 
>1.380" springs?
>
>TIA
>
>Cheers, Tony Drews
>
>_______________________________________________
>fot at autox.team.net
>
>http://www.fot-racing.com
>
>Donate: http://www.team.net/donate.html
>Archive: http://www.team.net/archive
>Forums: http://www.team.net/forums
>Unsubscribe/Manage: 
>http://autox.team.net/mailman/options/fot/tony@tonydrews.com
>


_______________________________________________
fot at autox.team.net

http://www.fot-racing.com

Donate: http://www.team.net/donate.html
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/tr4@wi.rr.com