4 speed tranny: 3rd gear issue
#41
06-08-2013, 06:25 AM
UPDATE:
started disassembling the whole thing and I have an issue getting the mainshaft off.
I removed the plate with the 4 screws and with a soft mallet tried to drive the shaft out to ...but the lower gear hits the bearing race.
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From the manuals and articles I have the gear should also move out with the shaft.. or I got i wrong?
I looked at the 3/4 gear clutch fork.. it's worn and not straight/flat either. gotta get new ones
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Last thing. Looked at the bottom of the case for the first time... well.. somebody messed with the tranny already... there's a bunch of JBweld or similar :S... nice surprice
I have not taken it out yet. Since I am going to rebuild the whole thing now, I guess it's worth repairing it now.
From looking inside, there seem to be no cracks... So I guess the hole is just stripped.
Thought about just leaving it like that scared to find a "bigger" surprise... :S
Uploaded with ImageShack.us
Uploaded with ImageShack.us
started disassembling the whole thing and I have an issue getting the mainshaft off.
I removed the plate with the 4 screws and with a soft mallet tried to drive the shaft out to ...but the lower gear hits the bearing race.
Uploaded with ImageShack.us
From the manuals and articles I have the gear should also move out with the shaft.. or I got i wrong?
I looked at the 3/4 gear clutch fork.. it's worn and not straight/flat either. gotta get new ones
Uploaded with ImageShack.us
Last thing. Looked at the bottom of the case for the first time... well.. somebody messed with the tranny already... there's a bunch of JBweld or similar :S... nice surprice
I have not taken it out yet. Since I am going to rebuild the whole thing now, I guess it's worth repairing it now.
From looking inside, there seem to be no cracks... So I guess the hole is just stripped.
Thought about just leaving it like that scared to find a "bigger" surprise... :S
Uploaded with ImageShack.us
Uploaded with ImageShack.us
#42
06-08-2013, 06:34 AM
Seasoned HDF Member
of all the later trans units to fix 1960s on the 4 speed sporty is the one you need experence, i could type it all out but you did not say what the issue was, if you put this in the iron head section Reason - the sporty 4 speed as almost identical from 1954 to 1990 , all the adjustments most of the gears, shift forks, countershaft and other stuff is all the same and still carry the original 1950s part numbers -- and lots of guys have done trans work in that section and can help - jz
#43
06-10-2013, 09:18 PM
the 4 speed sporty is a completely different unit like your 1988 - no bushings in the gear set at all, the shift drum ( rotater ) has bushings
of all the later trans units to fix 1960s on the 4 speed sporty is the one you need experence, i could type it all out but you did not say what the issue was, if you put this in the iron head section Reason - the sporty 4 speed as almost identical from 1954 to 1990 , all the adjustments most of the gears, shift forks, countershaft and other stuff is all the same and still carry the original 1950s part numbers -- and lots of guys have done trans work in that section and can help - jz
of all the later trans units to fix 1960s on the 4 speed sporty is the one you need experence, i could type it all out but you did not say what the issue was, if you put this in the iron head section Reason - the sporty 4 speed as almost identical from 1954 to 1990 , all the adjustments most of the gears, shift forks, countershaft and other stuff is all the same and still carry the original 1950s part numbers -- and lots of guys have done trans work in that section and can help - jz
AND
The clutch basket needs to be replaced. The retainer ring groove is gone
#44
06-11-2013, 08:15 PM
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