(Car is a 1993 Honda Civic LX d15)

Well, my story began last week when my transmission started making weird noises. These noises included a whine at high RPM, and a chatter/clicking from the transmission at idle. This chatter went away when I depressed the clutch. So, being the HT junkie that I am...I searched HT for some answers.

The main consensus was that it was an Input Shaft Bearing (Helms calls it the "Clutch Housing Bearing"). This bearing sits between the clutch housing and the mainshaft. So today, I finally got around to taking my transmission off and disassembling it.

How to take off the transmission (copied mostly from Helms manual):
1. Disconnect battery from negative terminal.
2. Remove air intake.
3. Disconnect starter cables and transmission ground wire.
4. Remove the engine wire harness clamp.
5. Disconnect the back-up light switch and speed sensor connectors.
6. Remove clutch pope bracket and slave cylinder
Note: Do not operate clutch pedal once the slave cylinder has been removed
7. Loosen the lugnuts on the two front wheels.
8. Jack front end of car up. Make sure it is properly supported (Jackstands work well)
9. Remove front wheels.
10. Remove the transmission housing bolts (There are 9, 4 at the top, 5 on the bottom)
11. Drain manual transmission fluid.
12. Remove the axles. You must unbolt the fork at the wheel hub, there are 3 bolts for each fork, and then pull the hub (with axle still attached) outwards so that the axles come out of the transmission.
13. Unbolt catalytic converter from header.
14. Remove the shift linkage (both bars)
15. Remove the front stopper bracket (3 bolts)
16. Disconnect vehicle speed sensor
17. Unbolt starter from transmission.
18. Unscrew gas gap and unbolt fuel line from firewall.
19. Place a jack with a piece of wood on the top under the oil pan.
20. Remove the transmission side mount.
21. Remove the clutch cover (2 bolts)
22. Remove the transmission rear mount bolts and the remaining transmission housing bolts.
23. Slowly drop engine down, pull the transmission away from the engine until it clears the mainshaft.

Note: Those are just the written directions. I may have missed some things, but that is the helms directions and then a few things that I did today that werent in the helms. I dont suggest anyone pull off their transmission unless they have a helms manual in front of them. The illustrations are a major

Helms manual OWNZ j00!


How to remove the transmission housing:
1. Remove the back-up light switch
2. Remove the transmission hanger B.
3. Remove the transmission attacking bolts.
4. Remove the 32mm sealing bolt (can be done with a 3/8" ratchet)
5. Expand the snap ring on the countershaft ball beaing and remove it from the groove using a pair of snap ring pliers.
6. Separate the transmission housing from the clutch housing and wipe it clean of the sealant.

Note: The snap ring is a bitch to get off. If you have a set of needle nose pliers, just keep expanding the ring and prying at the transmission housing with screwdrivers...it took me and my friend 20 mins but it came off



How to remove mainshaft, countershaft, shift fork, and reverse idler gear to get to input shaft bearing:
1. Remove the reverse shift holder.
2. Remove the reverse idler gear shaft and gear.
3. Remove the interlock guide bolt from under the clutch housing (8mm allenhead bolt)
4. Remove the shift arm B attaching bolt.
5. Pull mainshaft and countershaft assemblies with the shift fork straight up, and out of the transmission.

How to remove input shaft bearing (also called clutch housing bearing):
Use long extension and a 5/8" socket and go in through the clutch housing side and tap the extension with a hammer lightly until the bearing comes out. Very simple to do.

And WHALA! You're done. My bearing looked fine, but when i spun it, it made a clicking noise...so I assume this was the source of my problem


The bottom half of the transmission:


Center: Mainshaft, countershaft, and shift fork assemblies
Bottom: Differential


Yep...I keep all my bolts organized


Also, one more thing. Upon inspection of the housing, i noticed that there was a small section missing in the area where the snap ring sits.

From the outside (kinda blurry):


From the inside:


Is that normal? Or do I have a chunk of my tranmission missing...if someone has done this before please offer some insight...

Stay tuned for part 2! I will install the new bearing, and explain how to put the transmission back together and back on the motor!

 

i'm just about to do this - great pics

 

hey I have an EG too and im about to swap the tranny on it, what EXACT HELMS manual should i buy from the site, http://www.helminc.com?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thrty8street &raquo;</TD></TR><TR><TD CLASS="quote">hey I have an EG too and im about to swap the tranny on it, what EXACT HELMS manual should i buy from the site, http://www.helminc.com?</TD></TR></TABLE>

up

 

up for anyone out there listening

 

http://www.helminc.com/helm/pr...0DPE0

 

k thanks, just ordered one

 

The "missing piece" of your case is not missing, that is how they are made.. Nothing to worry about..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iain &raquo;</TD></TR><TR><TD CLASS="quote">i'm just about to do this - great pics </TD></TR></TABLE>

agreed

 

how much is the bearing?

 

was that bearing fun getting out.. sometimes they can be a pain in the ***.

 

Does the main shaft, counter shaft and shift fork come out as one piece?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DSeriesBKilla &raquo;</TD></TR><TR><TD CLASS="quote">Does the main shaft, counter shaft and shift fork come out as one piece?</TD></TR></TABLE>
YES

 

How come when I search for the 94 civic manual I get nothing I search for all types but it keeps saying that it doesn't have any.

 

Ive tried this, but I still cannot get it apart. 87 crx si. I removed fifth gear housing and the 5th shift fork +hub and bearings, but the case will not seperate from the clutch end. I have snap rings on both shafts, is there one in the middle i need to releasE? will then transmission appear to be partially apart before I need to release those rings?

 

CA/CG trannys are a whole different ballgame. I suggest asking on the forums at http://www.redpepperracing.com

 

when dissassembling the transmission, where do you pry on the countershaft to get it off after step 6?