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@autox.team.net] On Behalf Of Tony Drews
Sent: Sunday, January 03, 2016 7:16 PM
To: fot@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
>
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