Cb single groove retainers with 3 groove collets

[pnikas]

Hello everybody , I have ran into an issue with my type 4 , too close to bottoming the springs . I tried some retainer and collet combinations to see if I get any luck . The ones that give the maximum travel are the cb chromoly ones (for single groove retainers ) with 3 groove chromoly retainers. Despite being the same degrees the single groove ones have a bigger hole (0.4mm) allowing the collets to sit a bit lower . That solves my coil bind issue , is it safe to run though? Chromoly retainers always have the collets a bit more sunk in them than original ones do
In the second picture a type 1 with chromoly retainers with their mated collets

[cal 67]

That's sketchy. Use EMW's retainers. They're designed for OEM retainers, but allow more install height.

[cal 67]

Take the valve out, add the retainer, and attach the keepers. Choke-up the retainer and check how the underside looks. If it doesn't hang out, you might be fine.