The Ford Barn

kenparker · 01-27-2016, 03:57 PM

Ordered a set of new Valve Tappets. Single Nut locking type. Began installing Tappets and Valves this morning. Problem is the Nut will not screw into the Tappet far enough to get clearance on the valves. There are still 4 - 6 threads showing on the Screw In Nut and Nut is to tight to go any further. At this point ther is 0 clearance on the valve and valve is not down in its seat all the way. It is though the Tappet is .060 to .080 to long or the valves are too long.

Have any of you engine builders run across this before? Any ideas? I have contacted the vendor and he is researching the problem also. I do not want to name the vendor until problem is solved - way or the other - not fair to them at this point.

more info: Valves measure 5.730 to 5.735 in length - mushroom foot valves.

01-27-2016, 03:57 PM	#1
kenparker Senior Member Join Date: May 2010 Location: Van, Texas Posts: 1,122	Valve Tappet problem Ordered a set of new Valve Tappets. Single Nut locking type. Began installing Tappets and Valves this morning. Problem is the Nut will not screw into the Tappet far enough to get clearance on the valves. There are still 4 - 6 threads showing on the Screw In Nut and Nut is to tight to go any further. At this point ther is 0 clearance on the valve and valve is not down in its seat all the way. It is though the Tappet is .060 to .080 to long or the valves are too long. Have any of you engine builders run across this before? Any ideas? I have contacted the vendor and he is researching the problem also. I do not want to name the vendor until problem is solved - way or the other - not fair to them at this point. more info: Valves measure 5.730 to 5.735 in length - mushroom foot valves.