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How to: Civic 5 speed new bearings
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04-15-2015, 10:51 PM
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firehawk618
EcoModding Apprentice
Join Date: Oct 2014
Location: Marysville, wa
Posts: 221
97 Civic HX sedan VX trans
- '98 Honda Civic LX + HX + VX
90 day:
41.9
mpg (US)
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Thanked 42 Times in 24 Posts
Thanks Old Mechanic for mentioning to measure the bearings. I ALMOST tried to put the wrong one into the clutch housing. If I hadn't measured them first I certainly was going to install it there. They looked identical but were a few mm's off on the inside diameter.
Ok I didn't take as many pictures as I would have liked but this will sum it up.
Time to tap in your input shaft seal. I simply use the old seal to tap the new one in with. After that tap in your bellhousing side input shaft bearing into the housing. Again, use the old bearing to tap the new one in with. Only tap on the perimeter NEVER the center.
Now it's time for the counter shaft, bell housing side bearing. Again, use the old bearing to tap in the new. None of these bearings are very hard to get in. If you are really forcing it you'e doing it wrong. They should go in with very gently strikes from your hammer.
Old bearing on top of the new bearing.
Ah HA! Main shaft rear bearing. SHOT!
This bearing simply slides off and back on your main shaft. No press required.
Now to the counter shaft bearings. On the end with two bearings and a nut you need to spread that staked part of the nut open then I used an impact gun to get the nut loose. There's another beveled washer under here, make note of it.
These bearings are pressed on. I found it really easy using my 3 jaw puller to just grab the gear and pull up on the whole thing. It didn't take much force.
Some will say just remove the nut and slam the shaft down on a piece of wood. Yeah i'm sure this method works but I didn't want to be slamming on my synchros so I chose to do it the gentle way.
To install these bearings some will say put the counter shaft in the freezer and put your bearings in the oven. I say if you have a press use it. Makes this job easy.
After those two bearings are back on put the beveled washer and nut back on. I followed Old Mechanic's advise and waited to torque this nut down until I had the shafts back in the trans so I could put it in 2 gears at once and use that to hold the shaft still as I torqued the nut back to it's original position. I would suggest you use one hand to hold the gear shafts together so they don't try to push apart as you torque.
This is how your shafts, gears and shift forks should sit. Now is a great time to make sure all 3 shift collars are in the neutral position. If you can see synchros on both sides of the 1-2, 3-4 shift forks you're in neutral. If you can see your synchro on one side of the 5th gear shift fork you are in neutral. This is what neutral looks like.
Once you are sure everything is lined up it's time to drop the whole unit back into the case. Make sure you have your two washers on the input shaft before dropping this back in. You will see where i'm pointing, you must get the selector tabs aligned right or it will NOT work. Make sure to re-install the selector bolt that I am pointing at. You will see 3 pictures that all look very similar but are not. What I am demonstrating is the shift gate and the 3 positions.
Once you have the shafts in the trans and counter shaft nut torqued down go ahead and re-install reverse and the fork. It's hard to get this wrong.
Now it's time to set the other half of the case on. Apply your sealer of choice to the case halves and lower the other half on. Jiggle and wiggle and it'll go on all the way but the last 1/8" or so. What you now have to do is spread open that clip that retains the bearing. Once you get that clip over the bearing the case will drop on the rest of the way. Put in all your case bolts, torque them down. Don't worry that the clip hasn't seated into the bearing because now you flip the transmission over and it will "click" into place.
Make sure you re-install the two allen head bolts you took out. Shine a flash light in there to make sure the tabs are aligned. I couldn't get any pictures of this.
After all your bolts are back in take a punch and manually shift through all the gears while making sure your input shaft spins nice and smoothly.
__________________
1998 LX with a full HX swap + VX transaxle.
Last edited by firehawk618; 04-16-2015 at
11:30 PM
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