The Ford Barn - View Single Post

Ol' Ron · 06-22-2016, 08:53 AM

I have a 5C 1 1/32 Collette for my Lathe that I used to knurl and ream in one pass. Takes about a minute per guide. I use back gear in the lathe to reduce reamer ware. However I've never considered the Keeper location as a factor on spring length. Learn sumpiin new every day. However I do measure the installed height of the spring, but not all 16. I wonder what the difference could be?? With all the modifications we make to these engines, this is just one more thing to check. One thing I do know and that is the valve stem clearance in NEW guides are all over the place. I just Knurl the old ones and don't run any seals. I did run a few back 30 years ago, but feel thrir unnecessary with a tight stem. In my next build the guides will be permanently installed in the block and the springs will be installed at final assy. like when using the dual springs. UGH!!

06-22-2016, 08:53 AM	#10
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,859	Re: Bronze Guides I have a 5C 1 1/32 Collette for my Lathe that I used to knurl and ream in one pass. Takes about a minute per guide. I use back gear in the lathe to reduce reamer ware. However I've never considered the Keeper location as a factor on spring length. Learn sumpiin new every day. However I do measure the installed height of the spring, but not all 16. I wonder what the difference could be?? With all the modifications we make to these engines, this is just one more thing to check. One thing I do know and that is the valve stem clearance in NEW guides are all over the place. I just Knurl the old ones and don't run any seals. I did run a few back 30 years ago, but feel thrir unnecessary with a tight stem. In my next build the guides will be permanently installed in the block and the springs will be installed at final assy. like when using the dual springs. UGH!!