[Fot] Valve Spring lateral movement?

[John Kipping]

The valve springs should have some sort of bottom collar - but I'm not 
sure how important it is. Mk Is had an inner spring which held down a 
small ring which sat inside the outer spring. Mk IIs had a pressed metal 
"top hat" section. Cars with double springs should use a machined "top 
hat" section.

Scott Janzen wrote:
> I am cleaning up a GT6 head someone else prepped and assembled.  The valve
> springs can be pushed sideways +/- 3/32" where they rest on the head.  Prior
> heads I have worked on had hat shaped (in profile) stamped "washers" that
> prevented this because the crown of the "hat" fit into the inside diameter of
> the spring and the hole through the middle fit fairly precisely around the
> valve guide.
>
> Does it matter?  Will the springs skate around or will they do what they are
> supposed to regardless of ability to move lateraly?
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