10th Gen Civic Si - Transmission Rebuild - Episode 4 Final Assy

This is the final episode of the series showing the final assembly, including new tools and tips.

[@duketogo666]

Really appreciate this series - thank you! A very Happy New Year to you! 😎

[@27Worx]

Ah, thanks a lot. Happy new year to you. Good luck with your projects!

[@jasonpalmer4738]

I have that same hoodie.

[@27Worx]

Funny. Maybe I'll model some other clothing. Ha ha ha.

[@JamesAnderson-fw5ew]

Hi, would you by any chance know how to check the clearance on the countershaft after replacing the bearings? Thank you for your time👍🏻

[@27Worx]

Looking at the manual, there is a 35mm shim just under the top bearing that should have a clearance of 0.04 - 0.10mm between the bottom of the bearing and the top of 6th gear. Replace the shim with another value if it is outside that range. There are other checks along the way when evaluating parts that you are replacing to ensure the gear stack is dimensionally correct. One thing to note is, the counter shaft is supported at the bearing end with a snap ring between the case and the bearing (groove on the top of the bearing). The bottom of the shaft is supported radially with a needle bearing and not a thrust bearing. So, when you are discussing clearance, the only one that I can come up with is checking between the top bearing and 6th gear. I hope this answers your question. Download the manual off of CivicX.com and look at Section 24, pg. 43.

[@JamesAnderson-fw5ew]

@@27Worx thank you very much👍🏻

[@JamesAnderson-fw5ew]

@@27Worx hi, sorry to bother again but for you know the differential preload specs for the 90mm shim? Thank you for your time, your a life saver😎

[@27Worx]

In the manual, Chapter 1, pg. 67/105, the spec for clearance between the bearing and the case is 0 - 0.003". On my differential in both transmissions, I have never replaced the bearings and could not get a feeler gauge into the space that I believe to be what they want you to check. My process is, I flip the trans upside down with the input shaft pointing up. I use a gallon size paint can to support the diff end. I use a fender washer and long bolt to drop through the diff so I can pry up on the bottom of the diff. I have a magnetic base dial indicator to check for play. I have zero play in both of my transmissions. I recently replaced diff bearings on another rebuild and did the same check, with no play. The next time I dig into a trans I'm going to remove the shim and measure the play to see what it is compared to the thickness of the shim, to know if the shim should be adjusted. I just don't trust the method I have been trying if zero clearance is allowed. There could be a slight bind and wouldn't know it. If you replaced your bearings, set things up the way I described and remove the shim to see if you get the same movement as the shim is thick. This would indicate zero clearance. Any additional movement past the thickness of the shim can be considered more clearance. Stay within the 0.003" and you are good. If you didn't replace the diff bearings, just reassemble and move on.

[@JamesAnderson-fw5ew]

@@27Worx thank you very much. Ill give it a try.