The Ford Barn - View Single Post - Adjustable lifters keep backing off

hotrodcbx · 12-16-2015, 12:34 AM

I have a blown 286" flathead with a Potvin super 3/4 cam. I bought adjustable lifters from flathead Jack (not a memorable experience) which were produced in Australia. I now have 25,000 miles on the engine and have checked the clearance 2 times, once at 10,000 miles and second time this summer at about 22,000. The clearances were never out by more than 2 thou on maybe 4 or 5 of the lifters. I spin the engine to 6000 rpm regularly. The engine was built 11 years ago but I do not know the name of the Australian adj. lifters..

12-16-2015, 12:34 AM	#71
hotrodcbx Senior Member Join Date: Jul 2010 Posts: 141	Re: Adjustable lifters keep backing off - what do u do? I have a blown 286" flathead with a Potvin super 3/4 cam. I bought adjustable lifters from flathead Jack (not a memorable experience) which were produced in Australia. I now have 25,000 miles on the engine and have checked the clearance 2 times, once at 10,000 miles and second time this summer at about 22,000. The clearances were never out by more than 2 thou on maybe 4 or 5 of the lifters. I spin the engine to 6000 rpm regularly. The engine was built 11 years ago but I do not know the name of the Australian adj. lifters..