The Ford Barn

lrjones · 10-15-2016, 12:16 PM

I was helping a group replace an engine this morning on a 28 and after pulling the old engine found it had a multi disc clutch. None of the group had any experience with the multi disc clutch. What all has to be done to convert to a standard clutch which came with the new engine. Differences we have seen are front shaft on transmission is smaller diameter than the later Model A's, shaft that holds the pedals is larger diameter than on later models, bell housing appears to be different in that the hole on the rear is much bigger. Do all of those components have to be replaced? Have searched some on this site and saw mention that the starter was different. Any help would be appreciated. Thanks in advance.

Rancho Deluxe · 10-15-2016, 12:22 PM

Hi, You need just about everything, including the pedals, Transmission, bell housing, Adj.yoke, etc.. Its not a small job..

Kurt in NJ · 10-15-2016, 12:29 PM

on page 296 of the service bulletins there is a complete article about the changeover with a parts list

Synchro909 · 10-15-2016, 05:05 PM

Why change it? The multi plate clutches work fine. You may be better off to repair it, if it needs repair and use it. Opinion seems to have turned against multiplate clutches and I suspect the reason is because of troubles experienced by owners who have allowed them to deteriorate to the stage where they do give trouble. Once repaired, they work VERY well. I'd think carefully before going to all of the work and trouble to change it.

JohnLaVoy · 10-15-2016, 05:11 PM

You will need to change the transmission case too. The 28 case did not have the provision for the throw out bearing mechanism to be attached.

Rancho Deluxe · 10-15-2016, 05:28 PM

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Quote:

Originally Posted by Synchro909

Why change it? The multi plate clutches work fine. You may be better off to repair it, if it needs repair and use it. Opinion seems to have turned against multiplate clutches and I suspect the reason is because of troubles experienced by owners who have allowed them to deteriorate to the stage where they do give trouble. Once repaired, they work VERY well. I'd think carefully before going to all of the work and trouble to change it.

The main reason is the fly-wheel most of the time is shot..Cant find many good ones anymore & when you do big $$.. Throw out Brg. can be also hard to find.

lrjones · 10-15-2016, 08:44 PM

Sure appreciate all the comments. He wants to change it because the rebuilt engine he bought came with the new flywheel and V8 clutch. It never dawned on him that the transmission and bell housing wouldn't be compatible with the new clutch set up. None of the 8 or 9 people there had ever had any experience with a multi disc clutch. I think a club member has a spare transmission, bell housing, and pedals. Any more hints or suggestions would be appreciated. Thanks

Tom Endy · 10-16-2016, 03:25 PM

The transmission does not have to be replaced, but it has to be modified. The input shaft has to be replaced with the later version. You will need a front bearing retainer and you will have to drill and tap the front of the housing to accept the four mounting bolts. You will also need the sliding hub to mount the throw-out bearing on.

Tom Endy

700rpm · 10-16-2016, 10:32 PM

Just put a later A clutch in. (Note my signature line).

10-15-2016, 12:16 PM	#1
lrjones Member Join Date: Dec 2015 Location: Brooklyn Michigan Posts: 53	Changing From Multi Disc to V8 Clutch I was helping a group replace an engine this morning on a 28 and after pulling the old engine found it had a multi disc clutch. None of the group had any experience with the multi disc clutch. What all has to be done to convert to a standard clutch which came with the new engine. Differences we have seen are front shaft on transmission is smaller diameter than the later Model A's, shaft that holds the pedals is larger diameter than on later models, bell housing appears to be different in that the hole on the rear is much bigger. Do all of those components have to be replaced? Have searched some on this site and saw mention that the starter was different. Any help would be appreciated. Thanks in advance.

10-15-2016, 12:22 PM	#2
Rancho Deluxe Senior Member Join Date: May 2010 Location: Maryland Posts: 145	Re: Changing From Multi Disc to V8 Clutch Hi, You need just about everything, including the pedals, Transmission, bell housing, Adj.yoke, etc.. Its not a small job..

10-15-2016, 12:29 PM	#3
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,159	Re: Changing From Multi Disc to V8 Clutch on page 296 of the service bulletins there is a complete article about the changeover with a parts list

10-15-2016, 05:05 PM	#4
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 7,496	Re: Changing From Multi Disc to V8 Clutch Why change it? The multi plate clutches work fine. You may be better off to repair it, if it needs repair and use it. Opinion seems to have turned against multiplate clutches and I suspect the reason is because of troubles experienced by owners who have allowed them to deteriorate to the stage where they do give trouble. Once repaired, they work VERY well. I'd think carefully before going to all of the work and trouble to change it. __________________ I'm part of the only ever generation with an analogue childhood and a digital adulthood.

10-15-2016, 05:11 PM	#5
JohnLaVoy Senior Member Join Date: Jun 2014 Location: Rocklin, CA Posts: 779	Re: Changing From Multi Disc to V8 Clutch You will need to change the transmission case too. The 28 case did not have the provision for the throw out bearing mechanism to be attached.

10-15-2016, 08:44 PM	#7
lrjones Member Join Date: Dec 2015 Location: Brooklyn Michigan Posts: 53	Re: Changing From Multi Disc to V8 Clutch Sure appreciate all the comments. He wants to change it because the rebuilt engine he bought came with the new flywheel and V8 clutch. It never dawned on him that the transmission and bell housing wouldn't be compatible with the new clutch set up. None of the 8 or 9 people there had ever had any experience with a multi disc clutch. I think a club member has a spare transmission, bell housing, and pedals. Any more hints or suggestions would be appreciated. Thanks

10-16-2016, 03:25 PM	#8
Tom Endy Senior Member Join Date: May 2010 Location: Southern California Posts: 3,131	Re: Changing From Multi Disc to V8 Clutch The transmission does not have to be replaced, but it has to be modified. The input shaft has to be replaced with the later version. You will need a front bearing retainer and you will have to drill and tap the front of the housing to accept the four mounting bolts. You will also need the sliding hub to mount the throw-out bearing on. Tom Endy

10-16-2016, 10:32 PM	#9
700rpm Senior Member Join Date: May 2010 Location: Portland, Oregon Posts: 5,906	Re: Changing From Multi Disc to V8 Clutch Just put a later A clutch in. (Note my signature line). __________________ Ray Horton, Portland, OR As you go through life, keep your eye on the donut, not the hole.