I found a "Model #300 Universal P & G Valve Gapper" included in a box of tools at an auction.  I originally wanted one of the other tools, but saw the gapper in the box and thought I would take a chance.  The unit appears to be complete except for instructions.   Dial indicator moves freely, has barrels #2, #3, #8 with springs and plastic ends, 4 "U shaped" collars 2 ea with an "S" stamped in and 2 thinner ones with letters "H"  & "J".   Can this be set up to be used on the 292/312 Y-Blocks?   Any one have instructions to scan and send or able to tell me what to use and how to use it?   I have found some info on line, but it was for a model #111 which is a bit different looking, but will probably function the same way.   I have an extra set of heads to practice on but thought the correct info would be helpful.   Thanks in advance for any help you can give.   J    not4winter@yahoo.com  

here's all the info I know of.

http://www.ctci.org/membership/Gilsgarage/ValveGapperInstructions.htm



let us know if it work for you on the Y as I would also be interested. It seems like it would with the proper fitting. Those things are usually pricy in my book. hope you got a deal.

       A  L  A  N   F  R  A  K  E  S   ~  Tulsa, OK    

Joe

Directions are posted in the Classic Birds Forum at the Yahoo site

http://autos.ph.groups.yahoo.com/group/classicbirds/photos/browse/9203

Great find. I would call it a Christmas present.

Best regards,Oldmics

Joe,



You need the "X" horseshoe base adapter for Y-Block/FE (stock retainer) use. H1 and U2 adapters are needed if you have aftermarket (Isky/Crane. etc.) retainers. The #2 barrel is for Y-Block/FE. If I were you, I would watch eBay for another P&G 300 (incomplete or damaged item might go cheap?), put together a Y-Block setup using the best parts, and list/resell the rest to someone with another car brand.



If successful, let me know and I will mail you complete instruction copies. The 300 is (in my opinion) the best model, and an absolutely essential tool.

6 VOLTS/POS. GRD. NW INDIANA

Thanks for all the help, the links and for the pictures from Oldmics.   From what saw it looks like I may need a base adaptor size "X" to fit a Y-block.  Will have to get the extra heads off the shelf and see if its possible re-machine an adaptor to fit and learn how this gizmo works.  Will do a bit of research and perhaps post on a GM or Chrysler forum to see if I can find someone to trade an H or J for a X base.   The price paid was worth it just for the other tools in the box, so I certainly can't complain for taking a chance on the unknown.

Thanks again 

J