The Ford Barn

my4dv8 · 04-11-2019, 03:00 PM

Ok not sure if this should be on the V8 or model A forum.
1932 B4 pickup. The original B4 transmission internals were pretty rough ,2nd gear being very very angry, but from memory engaging 1st gear was ok with the original 32 transmission. We changed out the whole internals for 39 V8 gears , simple enough.
I did not realise the input shaft splines were different on the B4 to the V8 ,so found a pretty decent V8 clutch plate in my stash. First drive the clutch was slipping a little on power , but otherwise seemed ok. Did not know what I was doing (as usual) but decided what the heck I will have a bash at adjusting the clutch pressure plate fingers. Hmmm that seemed to work much better now but may need fine tuning.
So the real question is on engaging first gear from a stop we get cogs briefly,which to me indicates something is turning . If we are rolling slightly there is no graunch. Shifting on the move to 2nd and 3rd is good.
I have no problem pulling the engine to fit a V8 pressure plate if that’s what’s needed.

1931 flamingo · 04-11-2019, 03:32 PM

What weight gear oil in the tranny??
Paul in CT

my4dv8 · 04-11-2019, 04:50 PM

EP 90w oil. Good thought Paul.

deuce_roadster · 04-11-2019, 06:25 PM

At the stop, if you put it into 2nd to stop things from turning before moving the lever into 1st does that help? Pilot bearing may be keeping things turning as well as the clutch disk dragging.

my4dv8 · 04-12-2019, 12:23 AM

No @deuce roadster gave it a try though.
Found 2 and 3 were also a little stiff to get into today. Don’t know what’s up but found too much free play ( its only done 20 miles) clutch adjustment helped lots . I know initially free play was around 1”. Now no cogs and smooth shifts. Duh check the basics first.
But am still not sure the clutch clamping force is perfect, it doesn’t grab firm on initial launch , sure it will spin the tyres on stones and grass and stall when the brakes are applied.But I suspect its a little soft , need to try it on some hills possibly. Maybe thats the nature of a B clutch.

40 Deluxe · 04-12-2019, 12:43 AM

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Standard operating procedure on a non-synchro low gear trans was to put the trans in 2nd or 3rd to stop the gear rotation, then shift to first or reverse to avoid grinding. When coming to a stop, leave it in 2nd or 3rd until stopped, then go into first. If you want to go into low for engine braking, use the double clutch method.

04-11-2019, 03:00 PM	#1
my4dv8 Senior Member Join Date: Aug 2010 Location: New Zealand Posts: 1,112	Get cogs on initial 1st gear engagement Ok not sure if this should be on the V8 or model A forum. 1932 B4 pickup. The original B4 transmission internals were pretty rough ,2nd gear being very very angry, but from memory engaging 1st gear was ok with the original 32 transmission. We changed out the whole internals for 39 V8 gears , simple enough. I did not realise the input shaft splines were different on the B4 to the V8 ,so found a pretty decent V8 clutch plate in my stash. First drive the clutch was slipping a little on power , but otherwise seemed ok. Did not know what I was doing (as usual) but decided what the heck I will have a bash at adjusting the clutch pressure plate fingers. Hmmm that seemed to work much better now but may need fine tuning. So the real question is on engaging first gear from a stop we get cogs briefly,which to me indicates something is turning . If we are rolling slightly there is no graunch. Shifting on the move to 2nd and 3rd is good. I have no problem pulling the engine to fit a V8 pressure plate if that’s what’s needed.

04-11-2019, 03:32 PM	#2
1931 flamingo Senior Member Join Date: May 2010 Location: new britain,ct 06052 Posts: 9,390	Re: Get cogs on initial 1st gear engagement What weight gear oil in the tranny?? Paul in CT

04-11-2019, 04:50 PM	#3
my4dv8 Senior Member Join Date: Aug 2010 Location: New Zealand Posts: 1,112	Re: Get cogs on initial 1st gear engagement EP 90w oil. Good thought Paul.

04-11-2019, 06:25 PM	#4
deuce_roadster Senior Member Join Date: Oct 2011 Location: Shelton, WA Posts: 3,800	Re: Get cogs on initial 1st gear engagement At the stop, if you put it into 2nd to stop things from turning before moving the lever into 1st does that help? Pilot bearing may be keeping things turning as well as the clutch disk dragging.

04-12-2019, 12:23 AM	#5
my4dv8 Senior Member Join Date: Aug 2010 Location: New Zealand Posts: 1,112	Re: Get cogs on initial 1st gear engagement No @deuce roadster gave it a try though. Found 2 and 3 were also a little stiff to get into today. Don’t know what’s up but found too much free play ( its only done 20 miles) clutch adjustment helped lots . I know initially free play was around 1”. Now no cogs and smooth shifts. Duh check the basics first. But am still not sure the clutch clamping force is perfect, it doesn’t grab firm on initial launch , sure it will spin the tyres on stones and grass and stall when the brakes are applied.But I suspect its a little soft , need to try it on some hills possibly. Maybe thats the nature of a B clutch.

04-12-2019, 12:43 AM	#6
40 Deluxe Senior Member Join Date: May 2010 Location: now Kuna, Idaho Posts: 3,779	Re: Get cogs on initial 1st gear engagement Sponsored Links (Register now to hide all advertisements) Standard operating procedure on a non-synchro low gear trans was to put the trans in 2nd or 3rd to stop the gear rotation, then shift to first or reverse to avoid grinding. When coming to a stop, leave it in 2nd or 3rd until stopped, then go into first. If you want to go into low for engine braking, use the double clutch method.