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CT3 Speedo Drive Gear rusted to hub..........(Need advice on how to remove)

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CT3 Speedo Drive Gear rusted to hub..........(Need advice on how to remove) was created by Quartermaster35

This drive gear seems to be rusted to the hub......... any advice on how to remove? 


1973 Yamaha CT3 175

Prior Bikes:
1973 Suzuki TS90
1977 Yamaha IT175
1978 Suzuki 390SP
1980 Yamaha 175 Tri-Moto
1969 Yamaha DT1 250
1981 Yamaha XS650 Special
1982 Suzuki GS550ES
1982 Honda 250R
1984 Honda Nighthawk "S"
2005 Kawasaki KLR650
16 Oct 2021 14:32 #1

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Replied by Swoop56 on topic CT3 Speedo Drive Gear rusted to hub..........(Need advice on how to remove)

Probably equal measures of good penetrating oil and patience .
16 Oct 2021 14:37 #2

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Replied by RT325 on topic CT3 Speedo Drive Gear rusted to hub..........(Need advice on how to remove)

I've got mine off in the end by using long nose pliers & forcing on the teeth but wonder if you fitted a tube over it to protect the seal then apply heat down through the tube. Seal comes out easy enough & can re-use it if ya careful.
16 Oct 2021 15:25 #3

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Replied by Quartermaster35 on topic CT3 Speedo Drive Gear rusted to hub..........(Need advice on how to remove)

I have been heating it on and off today but hasn't moved much yet........ Will be soaking overnight.

(Hoping hoping)
1973 Yamaha CT3 175

Prior Bikes:
1973 Suzuki TS90
1977 Yamaha IT175
1978 Suzuki 390SP
1980 Yamaha 175 Tri-Moto
1969 Yamaha DT1 250
1981 Yamaha XS650 Special
1982 Suzuki GS550ES
1982 Honda 250R
1984 Honda Nighthawk "S"
2005 Kawasaki KLR650
16 Oct 2021 17:32 #4

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Replied by MarkT on topic CT3 Speedo Drive Gear rusted to hub..........(Need advice on how to remove)

I've had some luck trying to rotate gear CCW by the flats so it climbs the little gear... works really good if little gear is stuck
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
16 Oct 2021 18:07 #5

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Replied by RT325 on topic CT3 Speedo Drive Gear rusted to hub..........(Need advice on how to remove)

If all else fails is there room to drill a couple of opposing holes from the outside in to tap the back of the gear with a punch or nail. Best pull the little gear out if you have an un-do thingy & just get it out of the way. With that gear removed & if any slight movement you can work at it with more room just nosey pliers on the gear teeth--won't hurt it if you don't slip.
16 Oct 2021 20:21 #6

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Replied by Quartermaster35 on topic CT3 Speedo Drive Gear rusted to hub..........(Need advice on how to remove)

I gave up on removing this and ordered a different hub off of Ebay for $30...... Problem solved!
1973 Yamaha CT3 175

Prior Bikes:
1973 Suzuki TS90
1977 Yamaha IT175
1978 Suzuki 390SP
1980 Yamaha 175 Tri-Moto
1969 Yamaha DT1 250
1981 Yamaha XS650 Special
1982 Suzuki GS550ES
1982 Honda 250R
1984 Honda Nighthawk "S"
2005 Kawasaki KLR650
The following user(s) Liked this Post: LETSJET
25 Oct 2021 09:59 #7

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