The Ford Barn

31 RPU · 12-07-2013, 10:30 PM

Has anyone tried the split bolt adjustable tappets? They don't have a jamb nut.
Do they stay adjusted once they are set?
Thanks

midgetracer · 12-07-2013, 11:05 PM

I have had no problems with them.

MikeK · 12-08-2013, 12:36 AM

I have had problems with two. You are between a rock and a hard place, the double locks have a smaller foot diameter that is not compatible with some cam grinds. I disassembled, degreased, tightened the fit, and then bead blasted the threads on the last two new sets I have used. I also re-dressed the bolt faces, as the surface was not a true flat interface to the valve stem.

Mike V. Florida · 12-08-2013, 04:19 AM

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Quote:

Originally Posted by midgetracer

I have had no problems with them.

Same here, many years, thousands of miles no problems.

12-07-2013, 10:30 PM	#1
31 RPU Senior Member Join Date: May 2010 Posts: 182	Adjustable Tappets Has anyone tried the split bolt adjustable tappets? They don't have a jamb nut. Do they stay adjusted once they are set? Thanks

12-07-2013, 11:05 PM	#2
midgetracer Senior Member Join Date: May 2010 Location: Bismarck ND Posts: 1,242	Re: Adjustable Tappets I have had no problems with them.

12-08-2013, 12:36 AM	#3
MikeK Senior Member Join Date: May 2010 Location: Windy City Posts: 2,919	Re: Adjustable Tappets I have had problems with two. You are between a rock and a hard place, the double locks have a smaller foot diameter that is not compatible with some cam grinds. I disassembled, degreased, tightened the fit, and then bead blasted the threads on the last two new sets I have used. I also re-dressed the bolt faces, as the surface was not a true flat interface to the valve stem.