[TR] fuel pump

[Randall]

> But if you have a TR6 the valves are "staked" into place.  

Some of the replacement TR3 pumps also have the valves staked into place.

Personally, if the staked valves seem to work (can blow through them one
way, not the other way), I leave them alone.  Too many stories of re-staked
ones falling out.  Some have even gone as far as fabricating a retaining
plate similar to the earlier pumps, to hold the valves in place.

Randall