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PostPosted: Fri May 08, 2015 11:08 pm 
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Joined: Tue Oct 03, 2006 10:43 pm
Posts: 720
Location: Texas 75150
I get transmissions all the time that have been pulled from the cars and then just set outside.
The rain will get to the input shaft if it is not protected.
Input shafts will be rusty up to the input shaft seal.
After glass beading the rust off the input shaft, you will see pitting all the way up to the seal.
These will leak oil out of the input shaft until the new seal and input shaft finally seat in.
This fix will stop the oil leak until the shaft seals.

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FYI.. NEVER, never use a Chinese bearing for your input shaft. If it fails (and it will) it takes 4 hours to get to it,
another 2 hours to replace it, and 4 hours to reinstall the transmission. The cost of $10 more for a
goods Japanese or an American bearing is worth not having to fix it again.
The input shaft bearing is a 6204 cost $7.00. You need to find a 6204 with seals and a snap ring groove cost $17.00.
Remove the inner seal from this new bearing so the bearing gets transmission oil to it.
Remove the snap ring and replace it with a 1.5 x 43 mm o ring. This will seal the OD of the bearing.
Install the new bearing onto the input shaft. Install an new input shaft seal into the case.
When you install the input shaft into the case make sure you lube the o ring really well.
You don't want to tear the new o ring on installation.
The sealed bearing will stop the oil leak from the input shaft until the new seal has time to seat in.
3404 shows new sealed bearing with o ring in the snap ring groove.

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_________________
Fainya
97 Geo Metro LSI,1.3L-GT-DOHC-16v,4.10 5-speed,A/C,170,000,suspension lowered 1",4 wheel disk brakes,15"alloy wheels with 185/50-15 Toyo's,GT bucket seats,analog oil pressure gauge,cruise control, new paint job. 40 mpg at 65 mph.
Good, fast, cheap. You only get two.


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PostPosted: Fri May 08, 2015 11:33 pm 
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Joined: Wed Jan 29, 2014 1:18 am
Posts: 212
Location: Slovenia
nice info!

i use SKF or FAG bearings (small one on input shaft and both on diff)
big one on input and both on pinion i can only get SGP from suzuki dealers.. and those are expensive :D (over 100eur for all 3)
do you know if it's possible to get em from other manufacturers? i'm in EU so USA and Japan market is about same cost as SGP i guess :) (transport, vat,..)


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PostPosted: Thu May 14, 2015 6:31 am 
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Joined: Tue Oct 03, 2006 10:43 pm
Posts: 720
Location: Texas 75150
The plain 6204 input shaft bearing made in Japan is about $7.00 USA.
The sealed snap ring 6204 bearing made in Japan is $17.00
machining the case for a larger input shaft bearing weakens the case.
I have seen cracked cases that leak oil into the bell housing doing the larger bearing mod.

_________________
Fainya
97 Geo Metro LSI,1.3L-GT-DOHC-16v,4.10 5-speed,A/C,170,000,suspension lowered 1",4 wheel disk brakes,15"alloy wheels with 185/50-15 Toyo's,GT bucket seats,analog oil pressure gauge,cruise control, new paint job. 40 mpg at 65 mph.
Good, fast, cheap. You only get two.


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