clutch question

[95_gsrfodo]

90 civic zc swap si tranny? sohc
what replacement clutch and axles do i need?

the throwout bearing and axles are shot in the car i just picked up
and need to know what parts i need to order ive been out the game to long
also has newer spindels? for bigger brakes will the hums make a difference?

i need more info on the car..and parts on it
i dont see and tags or stickers on the tranny..

[JustRob]

You want a clutch and axles that match the transmission. The axles won't be an issue with the bigger brakes as long as you're using 88-91 Si/EX/DX axles. However, you'll need to find out what year Si that transmission came out of to find the proper clutch disc as there are three different ones for the 88-91 model years. Here are a couple ways to find out what you have.

Identifying a transmission by visual inspection

All CRX transmissions will be labeled as being an L3 transmission. The number of rings (grooves) on the input shaft tell you which year that it is from. 0 rings = '88, 1 ring = '89, 2 rings = '90-'91

To identify which type of gear set it has, you can use the stampings on the outside of tranny case, just above the fill hole. There is a round stamp with some numbers/letters. All these do is specify bearing sizes. The Si usually had larger bearings and this is reflected by a code of PL3/3000 and sometimes 9000. If it says PL3/A100, the tranny has smaller bearings and is probably a DX, or HF model. I say "usually" and "probably" because Honda did produce some small bearing Si transmissions. If the round stamp is blank, it's an '88 transmission and you cannot determine the gearset by this method.

DOHC ZC transmissions use a larger differential with thicker axles. You can identify them by the larger hole where the axles plug into the differential.

Identifying a transmission by mathematical calculation

By placing the transmission in 5th gear and turning the input shaft 10 times and measuring how many times the differential rotates, you can theoretically figure out which transmission you have from the following equation:

10 / (5th gear ratio) / (Final drive ratio) = (# of turns of the differential)

Examples:

CRX HF
10 / .694 / 3.250 = 4.43 turns of the differential

CRX DX
10 / .771 / 3.888 = 3.34 turns of the differential

CRX Si
10 / .771 / 4.25 = 3.05 turns of the differential

DOHC ZC
10 / .878 / 3.888 = 2.93 turns of the differential

SOHC ZC (same gearing as CRX Si)
10 / .771 / 4.25 = 3.05 turns of the differential

SOHC ZC ZXi
10 / .771 / 4.437 = 2.92 turns of the differential

Obviously this method doesn't help you differentiate the normal DOHC ZC transmission from the SOHC ZC ZXi transmission, so you will also need to do a test in 1st gear.

10 / (1st gear ratio) / (Final drive ratio) = (# of turns of the differential)

Examples:

DOHC ZC
10 / 3.250 / 3.888 = 0.79 turns of the differential

SOHC ZC ZXi
10 / 3.250 / 4.437 = 0.69 turns of the differential

D-Series Clutch information

88 CRX (all) 190 mm clutch/21 splines
89 CRX (all) 200 mm clutch/20 splines
90-91 CRX (all) 212mm clutch/20 splines

[andyjt]

The cluth and flywheel in the car came off my 2000 civic ex. . Use the factory axles for the car.

[95_gsrfodo]

The cluth and flywheel in the car came off my 2000 civic ex. . Use the factory axles for the car.

sounds good now i know what to order thanx again andy... from now on ill just sent u a call or p.n with anything reguarding this car?

[95_gsrfodo]

well i was thinking it was the throwout bearing but asfter thingking about it throwout makes noise when pedal is pressed
my noise it there when pedal is up and when press the pedal down boise is gone so maybe bearing in the tranny?? anyone here able to replace these??

[horn12007]

95_gsr...assuming you have it fixed now.....if not you are thinking backwards.

If a throwout bearing is bad, it will make the noise when you don't have the pedal pressed. When you press the pedal the noise goes away.