Did or does the two keepers touch at both splits when keepers installed on valve? If keepers touch at both sides then this can cause this. Sometimes is good to remove a slight amount of metal to ensure it does not happen. Looking at inside of keeper at grooves you can see sides of keeper going 90 degrees to ribs that fit in grooves at valve stem. Those sides must not touch as it means keepers are loose on grooves of valve stem and not getting full engagement. I don't know how to explain it any other way.
From: [email protected] [mailto:[email protected]] On Behalf Of Dean Johnson Sent: Wednesday, April 17, 2013 9:22 AM To: [email protected] Subject: Re: [vintagvw] Valve spring retainer keepers. gone missing? I took my head to a local VW guy (not a machinist), he checked out the head. The valve guides are good and all the other valves are good too. The bad valve was stripped of its grooves for some reason. I'm just going to replace the one valve. While I hate to ask for advice and not take it, the local guy feels confident this will work. He and the VW mechanic turned high school science teacher have both had bad experiences with machine shops and VW heads. But wait! Does the valve need grinding, or at least lapping. Dean Now, I need to decide how far to go with this. 1. buy an intake valve and keepers and replace just the bad one. 2. Buy a set for all valves in both heads and rebuild them myself. 3. Send heads to a machine shop for rebuild. 4. buy one or two heads. -- Visit the VintagVW archives at http://mail-archive.com/[email protected] --- You received this message because you are subscribed to the Google Groups "VintagVW - Air Cooled Volkswagen Discussion List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/vintagvw?hl=en. For more options, visit https://groups.google.com/groups/opt_out. -- Visit the VintagVW archives at http://mail-archive.com/[email protected] --- You received this message because you are subscribed to the Google Groups "VintagVW - Air Cooled Volkswagen Discussion List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/vintagvw?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
