Cam Followers
Our more vigourous cam profiles subject the cam follower to heavier spring
loads and faster rates of valve acceleration than they were originally
designed to withstand. This typically leads to two problems.
- 'Pumping up' - when the valve hardly makes contact with it's seat,
or may even remain partly open.
- Loss of imparted movement - the valve is not moved its desired
distance due to entrapped gases being compressed, and imparting a
spring like property to the follower.
We offer two solutions to these problems.
Solid Insert
An insert for the standard follower which in effect makes it solid.
Cost effective and simple to fit.
Steel Follower
A much lighter one-piece steel cam follower made of high alloy steel,
plasma nitrided and with a lapped contact face. The weight saving helps
to reduce the amount of loading on the valve springs which can become
important for high speed race engines.
'Top Hat' shims
In either of these cases the valve clearance must be set. As the simplest
way to achieve this we supply 'top hat' shims, which sit on the valve
tip.
These are made of through hardened carbon steel, requiring no after
treatment, and are stocked in a range of sizes.
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