The Ford Barn

fritz29 · 07-08-2022, 04:59 PM

I need to adjust my valves
Anyone know what the threads per inch on a double nut tappet?

Patrick L. · 07-09-2022, 10:51 AM

I don't know.

Sounds like you're trying to figure out how to make one adjustment and have it turn out correctly.

I keep turning till I get it right, which means maybe twice.

fritz29 · 07-09-2022, 08:05 PM

I was until I found an easier way.
Loosen the lock nut and then print get the piston positioned to the point where you measure the gap. You can then tap the adjust or on the tappet until you get the proper gap. Reposition the piston to the point you normally adjust and relook. It works most of the time, just remeasure to make sure it didn’t shit and you’re done

Patrick L. · 07-10-2022, 02:47 AM

Well, you certainly don't want it to shit, its too messy then.

fritz29 · 07-10-2022, 07:29 AM

Yes,that would have been messy.
It should have said shift

Patrick L. · 07-10-2022, 09:25 AM

Sponsored Links (Register now to hide all advertisements)

Yep, i know. But i couldn't resist.

katy · 07-10-2022, 09:56 AM

IIRC thread is 20TPI, but it may vary w/different manufacturers.

fritz29 · 07-10-2022, 02:19 PM

I might have had it right the first time and it wasn’t meant to be shift
I must have had a bad ring, because I now have a scored cylinder
It just never ends

Patrick L. · 07-10-2022, 03:00 PM

Depending, the scored wall might not be too bad of a thing.

fritz29 · 07-10-2022, 03:15 PM

While it looks bad, I think it will take a lite honing and be good to go
Never scored a cylinder trining an engine over by hand before

07-08-2022, 04:59 PM	#1
fritz29 Junior Member Join Date: Mar 2011 Posts: 9	Thread on double nut tappet I need to adjust my valves Anyone know what the threads per inch on a double nut tappet?

07-09-2022, 10:51 AM	#2
Patrick L. Senior Member Join Date: May 2010 Location: Largo Florida Posts: 7,225	Re: Thread on double nut tappet I don't know. Sounds like you're trying to figure out how to make one adjustment and have it turn out correctly. I keep turning till I get it right, which means maybe twice.

07-09-2022, 08:05 PM	#3
fritz29 Junior Member Join Date: Mar 2011 Posts: 9	Re: Thread on double nut tappet I was until I found an easier way. Loosen the lock nut and then print get the piston positioned to the point where you measure the gap. You can then tap the adjust or on the tappet until you get the proper gap. Reposition the piston to the point you normally adjust and relook. It works most of the time, just remeasure to make sure it didn’t shit and you’re done

07-10-2022, 02:47 AM	#4
Patrick L. Senior Member Join Date: May 2010 Location: Largo Florida Posts: 7,225	Re: Thread on double nut tappet Well, you certainly don't want it to shit, its too messy then.

07-10-2022, 07:29 AM	#5
fritz29 Junior Member Join Date: Mar 2011 Posts: 9	Re: Thread on double nut tappet Yes,that would have been messy. It should have said shift

07-10-2022, 09:25 AM	#6
Patrick L. Senior Member Join Date: May 2010 Location: Largo Florida Posts: 7,225	Re: Thread on double nut tappet Sponsored Links (Register now to hide all advertisements) Yep, i know. But i couldn't resist. Last edited by Patrick L.; 07-10-2022 at 02:58 PM.

07-10-2022, 09:56 AM	#7
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,716	Re: Thread on double nut tappet IIRC thread is 20TPI, but it may vary w/different manufacturers. __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!

07-10-2022, 02:19 PM	#8
fritz29 Junior Member Join Date: Mar 2011 Posts: 9	Re: Thread on double nut tappet I might have had it right the first time and it wasn’t meant to be shift I must have had a bad ring, because I now have a scored cylinder It just never ends

07-10-2022, 03:00 PM	#9
Patrick L. Senior Member Join Date: May 2010 Location: Largo Florida Posts: 7,225	Re: Thread on double nut tappet Depending, the scored wall might not be too bad of a thing.

07-10-2022, 03:15 PM	#10
fritz29 Junior Member Join Date: Mar 2011 Posts: 9	Re: Thread on double nut tappet While it looks bad, I think it will take a lite honing and be good to go Never scored a cylinder trining an engine over by hand before