Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 07-12-2018, 08:33 PM   #1
svmsr1044
Senior Member
 
Join Date: Nov 2011
Location: Ivyland, PA
Posts: 108
Default Which flywheel ???

I am installing an 8ba/8RT engine in my 47 Ford coupe. I will be using the original 47 transmission and 10 inch clutch. I have all the necessary parts for the conversion except a correct flywheel. The flywheel I presently have seems to be correct but it hits the back of the engine when I tighten it to the crankshaft flange.My question is: what is the correct flywheel to use for this application???
Thanks, Steve
svmsr1044 is offline   Reply With Quote
Old 07-12-2018, 08:36 PM   #2
alanwoodieman
Senior Member
 
Join Date: May 2010
Location: upstate SC
Posts: 2,673
Default Re: Which flywheel ???

you must be using a flywheel from an earlier engine--the early flywheels will interfere with the oil pump drive on the rear of the block. look for an 8ba or rt flywheel and have someone re-drill it for a 10" clutch
alanwoodieman is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 07-13-2018, 05:42 AM   #3
George/Maine
Senior Member
 
George/Maine's Avatar
 
Join Date: May 2010
Location: Mid coast Maine
Posts: 1,878
Default Re: Which flywheel ???

I did that swap and my engine came from a 1953 f100,try to get pressure plate with the fingers with adjusting screws at end of fingers. The 8ba the holes are drilled thur and the 59a are not.
George/Maine is offline   Reply With Quote
Old 07-13-2018, 06:28 AM   #4
Kurt in NJ
Senior Member
 
Kurt in NJ's Avatar
 
Join Date: May 2010
Location: on the Littlefield
Posts: 5,611
Default Re: Which flywheel ???

I had that problem when I put a 49 merc in the 46 truck, it was before internet so I didn't know that I couldn't make it work---- I cut some off the back of the flywheel, then found the starter engagement problem--- took apart a drive and modified it to go deeper into the flywheel, worked for many years, then got sold, driven to California in 4 days
Kurt in NJ is offline   Reply With Quote
Old 07-13-2018, 07:59 AM   #5
V8COOPMAN
Senior Member
 
V8COOPMAN's Avatar
 
Join Date: May 2010
Location: East Shore of LAKE HOUSTON
Posts: 8,931
Default Re: Which flywheel ???

On the right is a proper 8BA-type flywheel. The one on left is '48 and earlier. Note the difference in height (and width) of the ring gear for the starter drive between the two! Also notice that on the late flywheel (8BA), the threaded bolt holes for the clutch are drilled ALL THE WAY through the flywheel...those holes on the early one are NOT drilled all the way through. Hope this helps ya understand the difference(s) and the necessity to use the proper wheel. DD


__________________
Click Links Below

'35-'36 W/8BA & MECHANICAL FAN


T5 W/TORQUE TUBE
V8COOPMAN is offline   Reply With Quote
Old 07-13-2018, 12:22 PM   #6
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 13,325
Default Re: Which flywheel ???

Sponsored Links (Register now to hide all advertisements)
When folks mention a 10-inch clutch, they should be more specific. The 10-inch Long type used on Fords from 1942 I believe or the 10-inch Borg & Beck type as was used on the Mercury cars from 1949 thru early 1951. There are other 10-inch clutches that may or may not work. Ford F1 pickups, station wagons, and police cars came with the 10-inch Long clutch. The rest were either 9.5-inch like for Ford cars or the 11-inch Long clutch for the trucks with 4-speed gearboxes.

The flywheels are hard to find so most folks have them drilled & tapped for the 9 or 10-inch Long with the 1 3/8" 10-spline disk. These and the 49/E51 Merc B&B clutch will work with the big throw out bearing & release fork.

Last edited by rotorwrench; 07-13-2018 at 12:27 PM.
rotorwrench is online now   Reply With Quote
Old 07-13-2018, 12:40 PM   #7
19Fordy
Senior Member
 
19Fordy's Avatar
 
Join Date: May 2010
Location: Coral Springs FL
Posts: 9,210
Default Re: Which flywheel ???

I used a 49-51 merc flywheel, clutch and pressure plate. merc clutch is 10 inch and the stock Merc flywheel is already drilled for the 10 in. clutch. Transmission is 40 Ford.
19Fordy is online now   Reply With Quote
Old 07-14-2018, 06:15 AM   #8
Mac VP
Senior Member
 
Mac VP's Avatar
 
Join Date: May 2010
Location: Cincinnati, OH
Posts: 1,220
Default Re: Which flywheel ???

If you strike out locating a good 48-53 truck flywheel, we have brand new ones made for the late style flathead engine......drilled for 10” (Long style and Merc style) and for 11” Long style. The new flywheels include a new starter ring gear installed.

http://www.vanpeltsales.com/FH_web/e...prices-pg3.htm
__________________
VANPELT SALES LLC
Cincinnati, Ohio
Office: 513-724-9486
www.vanpeltsales.com
www.classictransmission.com
Mac VP is offline   Reply With Quote
Old 07-14-2018, 09:28 AM   #9
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 13,325
Default Re: Which flywheel ???

Hey Mac, That's good to know.
rotorwrench is online now   Reply With Quote
Old 07-14-2018, 10:21 AM   #10
svmsr1044
Senior Member
 
Join Date: Nov 2011
Location: Ivyland, PA
Posts: 108
Default Re: Which flywheel ???

Mac, sounds good, check your email
Steve
svmsr1044 is offline   Reply With Quote
Old 07-16-2018, 11:56 AM   #11
svmsr1044
Senior Member
 
Join Date: Nov 2011
Location: Ivyland, PA
Posts: 108
Default Re: Which flywheel ???

Thank you all for the helpful responses. This morning I ordered a new flywheel from Mac VP, hopefully this will solve my problem. Again, thanks to all!!

Steve
svmsr1044 is offline   Reply With Quote
Old 07-16-2018, 12:24 PM   #12
Andy
Senior Member
 
Join Date: May 2010
Location: Kerrville, Tx
Posts: 2,604
Default Re: Which flywheel ???

delete

Last edited by Andy; 07-16-2018 at 12:33 PM.
Andy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 09:32 AM.