The Ford Barn

wbs · 06-10-2018, 06:24 PM

hello-does anyone know drill bit size for tillotson main jet? i read all old posts for the nominal sizes but they all covered zenith but none addressed tillotson. incidently, the size for zenith is #65. thanks

Herb Concord Ca · 06-10-2018, 06:56 PM

The Tillotson main jet id is 0.112, the small holes on the side of the main jet are 0.030.
The suppliers sell a book on Tillotson. Search this site for Mr. Texas he has a website with pictures on the Tillotsons he has repaired.

wbs · 06-10-2018, 08:43 PM

thank you- i'm kind of amazed that anyone would know the answer to that question. ive read that orifices are very important but are only 19% true to specs.

BILL WILLIAMSON · 06-10-2018, 10:18 PM

Who in the WORLD calculated that 19% of jets were not TRUE to specs??? Someone is full of B.S.!!!!
Bill W.

Tom Wesenberg · 06-11-2018, 12:32 AM

Quote:

Originally Posted by BILL WILLIAMSON

Who in the WORLD calculated that 19% of jets were not TRUE to specs??? Someone is full of B.S.!!!!
Bill W.

B.S. must stand for bit sizes, and that's how they calculate the jets sizes. LOL

BILL WILLIAMSON · 06-11-2018, 07:47 AM

Sponsored Links (Register now to hide all advertisements)

Quote:

Originally Posted by Tom Wesenberg

B.S. must stand for bit sizes, and that's how they calculate the jets sizes. LOL

Tom,
In their "SURVEY", they didn't come by & check MY JET sizes. Did "THEY" check yours???---LOL
Bro Bill

06-10-2018, 06:24 PM	#1
wbs Senior Member Join Date: Nov 2013 Posts: 309	main jet orifice size for tillotson hello-does anyone know drill bit size for tillotson main jet? i read all old posts for the nominal sizes but they all covered zenith but none addressed tillotson. incidently, the size for zenith is #65. thanks

06-10-2018, 06:56 PM	#2
Herb Concord Ca Senior Member Join Date: May 2010 Location: Concord CA Posts: 637	Re: main jet orifice size for tillotson The Tillotson main jet id is 0.112, the small holes on the side of the main jet are 0.030. The suppliers sell a book on Tillotson. Search this site for Mr. Texas he has a website with pictures on the Tillotsons he has repaired.

06-10-2018, 08:43 PM	#3
wbs Senior Member Join Date: Nov 2013 Posts: 309	Re: main jet orifice size for tillotson thank you- i'm kind of amazed that anyone would know the answer to that question. ive read that orifices are very important but are only 19% true to specs.

06-10-2018, 10:18 PM	#4
BILL WILLIAMSON Senior Member Join Date: Dec 2010 Location: FRESNO, CA Posts: 12,560	Re: main jet orifice size for tillotson Who in the WORLD calculated that 19% of jets were not TRUE to specs??? Someone is full of B.S.!!!! Bill W. __________________ "THE ASSISTANT GURU OF STUFF"