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1987 CRXSi
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416 Posts
Discussion Starter #1
Alas my daughter took it upon herself to shell the clutch on my CRX - it is an 87 Si with an 89 Integra swap in it. In the process she destroyed the pressure plate and friction disk (don't ask me how) so I decided to take the transmission apart and rebuild it while I waited on the new flywheel/pressure pate/friction disc.

I ordered a rebuild kit - HONDA A2 & ACURA CG TRANSMISSION REBUILD KIT WITH SYNCHRO RINGS FITS '85-'89 (BK238WS) - The American Powertrain Warehouse - and I have taken everything apart, cleaned it like it was new and am starting the reassembly. One of the reasons for opening it up was that I had a Quaife LSD sitting about that fits these transmissions (I race a tube frame CRX that uses this same drivetrain...but it has a straight cut gear box in it and it is much easier to work on, so mechanically inclined, I am). I got the Quaife fitted with the ring gear, speedo gear and new bearings and it drops in without any clearance issues.

I changed all of the other bearings/seals in the transmission case halves and then Murphy came along...I went to go change the bearing that is on the Input Shaft. I use my snap ring pliers, got the 50mm snap ring off and then I expected the shim washer to slide off...should it not? It feels like it has free play if I push it side to side but it will not budge - it is firmly against the inner race of the shaft bearing. Is this a press on piece along with the bearing? The factory FSM doesn't address assembly/disassembly of this bearing - only checking the clearance between the snap ring and washer. Any thoughts?

The other question relates to the input shaft as well - shouldn't the 3rd/4th gear synchro hub slide off the mainshaft? I can see that it is splined on the shaft/hub, but it sill not budge...there's no changing the synchro if that doesn't come apart.

I don't mind putting things in a press or using a bearing puller if that is what needs to be done - but somehow something doesn't seem right?

Thanks for your help.
 

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Brokedick Millionaire
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40,312 Posts
The CG I swapped in a B16 LSD, was no need to swap out the bearings and the mainshaft came apart in normal Honda style.

 

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Registered
1987 CRXSi
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416 Posts
Discussion Starter #3
..."and the mainshaft came apart in normal Honda style."""
the ISB may not need replacing (it feels fine and the clearance is good) but I have replaced everything else and it seems silly not to replace one single bearing when all of the others have been replaced.

What do you mean by what I quoted? Should the 3rd gear hub slide off the Main Shaft with out prying on it? Should the ISB need to be pressed off?

Not trying to be a dick, but I just don't understand...I guess I could always pull apart another CG transmission to see if the Main Shaft is F'd...
 

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1987 CRXSi
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416 Posts
Discussion Starter #5
Not wanting to post a question with out leaving an answer...

I pulled apart another CG transmission and the 3/4 synchro hub slid right off of that input shaft. Pulled the snap ring on the ISB and that bearing was held tights as well, so I went back to my original Input Shaft to see about getting it apart.

I started a deep reach bearing puller and the 3/4 synchro hub came off with ease, evidently it was just tighter than the other input shaft. Put the input shaft in a press and started on the ISB and it indeed is a press fit, and the root of the gear that is cut onto the input shaft runs underneath the inner race of the ISB. When I got the bearing off and felt the surface there were lots of little sharp edges from the overcut for the root of the gear (pic). The new bearing pressed back on pretty straight forward and I am now proceeding with putting the rest of the transmission back together.

Thanks for the replies.

 

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Brokedick Millionaire
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40,312 Posts
Only on K series have I had to use a press to get shafts apart and back together. A soft machinists hammer and a leather glove is all I have used along with gravity.

The ISB lock ring, that through me for a loop....I have only done the one CG trans, for "Honey Badger" ...
 

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1987 CRXSi
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416 Posts
Discussion Starter #10
Side note:
You guys know these are the hot shit for the 3rd gen Accord guys with A20s?
That's the friction disc to use (from A20) - 10mm larger than the stock Integra one and the right spline count, 21 - on a 91 D series flywheel with the right pressure plate = no modifying the CG case for a better setup with OTS parts...
 
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