what to look for to identify si tranny? - Honda-Tech

omgwtfbbqcrx · 03-07-2006, 04:20 PM

hey guys, im buying a si tranny tomorrow with new clutch, ecu, and everything needed to swap, i need to know what to look for on the transmission to identify it as a si, and not a dx, or hf, please help i don't want to get cheated!

omgwtfbbqcrx · 03-07-2006, 04:26 PM

bump plz help i need to know soon

Tyson · 03-07-2006, 05:14 PM

only way to know for sure.

added the other graphic.

Modified by Tyson at 10:17 AM 8/27/2008

Tyson · 10-30-2006, 04:15 PM

good info

Quote:

Originally Posted by ryan89crx

look above the oil fill, there is a stamp that will say PL3/####
PL3/A### = small bearing case - DX/HF/STD
PL3/B000 = large bearing - SI/ZC
PL3/3000/6000/9000 = large bearing - SI/ZC

as for clutches, as long as you have a 90-91 flywheel it will use a 90-91 SI clutch. unless the trans is an '88(21 spline input shaft)

Quote:

Originally Posted by ryan89crx

axles dont matter. all DX/HF/STD/SI axles share the same inner splines, only the outer splines are different

stamp should be right here

Tyson · 10-30-2006, 04:17 PM

more info

Quote:

Originally Posted by Contender25

If you still have a gold sticker on your old cable transmission, which you do in this case, then you can tell the year for sure.

It's like this...

88/89 cable transmissions will have a L3-1 gold sticker..
90/91 cable transmissions will have a L3-2 gold sticker..

Bense · 06-30-2007, 11:30 AM

great thread

welfarepc · 06-30-2007, 11:32 AM

you dont need a new ECU... even for auto to manual swap u dont need one. auto ecu works for manual swap u just get a cel code because the shifter always stays in park. maybe that will save u some money!
dan

Bense · 06-30-2007, 11:47 AM

Quote:

Originally Posted by welfarepc

you dont need a new ECU... even for auto to manual swap u dont need one. auto ecu works for manual swap u just get a cel code because the shifter always stays in park. maybe that will save u some money!
dan

nevermind that, this thread is pretty old. I just wanted to show gratitude

ILcrxsi1 · 06-30-2007, 12:25 PM

Quote:

Originally Posted by Bense

nevermind that, this thread is pretty old. I just wanted to show gratitude

True if this isn't in the FAQ it should be

J-Parts · 12-01-2007, 08:48 AM

Ok call me stupid :

L3-1...... = 88/89 21 teeth clutch spline?
L3-2...... = 90/91 20 teeth clutch spline?

and what should I make of those numbers on the stamp above the filling hole?

jlicrx · 12-01-2007, 09:07 AM

Quote:

Originally Posted by J-Parts

Ok call me stupid :

L3-1...... = 88/89 21 teeth clutch spline?
L3-2...... = 90/91 20 teeth clutch spline?

and what should I make of those numbers on the stamp above the filling hole?

all 88s had 21 spline input shaft - all 89-91s had 20 spline input shaft - i wouldn't make anything of the numbers on the stamp - either open it up and count the teeth (preferred method) or use the diagram above - i would point out that high altitude HF transmissions have a 3.77 final drive, which would show up as being slightly above the DX in the picture - i have seen several transmissions that were passed off as being Si because the stamp said PL3/3000, but actually had a DX final drive in them - some people will go to any length to cheat you

ZC transmissions and EX transmissions also say PL3/3000 or PL3/9000 but don't have the Si 4.25 final drive - the ZC has larger diameter splined openings where the axles go in

J-Parts · 12-02-2007, 01:27 AM

But if you refer to the JDM/Euro ED9 D16a9/D16z5 engines there are 3 types of production models :

-88 model <]S100000 21 teeth
-89 model S100000-200000 20 teeth
-90/91 model [>S200000 20 teeth

-88 model
-89 model non facelift but with D16z5 engine
-90/91 model facelift + D16z5 engine

Sometimes I still have problems identifying the right clutch for the D16z5 , I sold some this year and ppl had problems with the clutch I supplied even checking EPC or gearbox no. Sometimes the clutch cover woud not fit onto the flywheel.

LUK clutches state that the -89 model has a smaller disc + different pressure disc,
Honda EPC also gives different numbers for the 89 and 90/91.

The main issue here is that these are old cars and many times the tranny has been swapped for a different one. And if they used the wrong tranny often a different plate/cover has been used.. leaving the future owners with the crapp of ordering the wrong parts.

Give me the simplicity of B-series LOL

TrippinBull · 02-12-2008, 10:54 PM

Quote:

Originally Posted by Tyson

look above the oil fill, there is a stamp that will say PL3/####
PL3/A### = small bearing case - DX/HF/STD
PL3/B000 = large bearing - SI/ZC
PL3/3000/6000/9000 = large bearing - SI/ZC

I don't see any other letter in the pic. It looks like it just says PL3/000.
And what about this?
P20/A000 is for DX/CX/VX
P20/B000 is for EX/Si

Quote:

Originally Posted by jlicrx

EX transmissions also say PL3/3000 or PL3/9000 but don't have the Si 4.25 final drive

Yes they do.

ranom01 · 09-07-2008, 07:20 AM

sorry to bring up a old thread, but id rather do this than start another thread

Quote:

Originally Posted by Tyson

i have 2 grooves on my input shaft, so according to this i have a 90\91 gearbox

Quote:

Originally Posted by Contender25

If you still have a gold sticker on your old cable transmission, which you do in this case, then you can tell the year for sure.
It's like this...

88/89 cable transmissions will have a L3-1 gold sticker..
90/91 cable transmissions will have a L3-2 gold sticker..

the sticker on my box is L3-1, so i have a 88/89 box

car is a 1989 JDM civic si, clutch is 20 spline 200mm diametre

so gear box is a 1989 with a 1990/91 input shaft????

any help wud be apreciated cheers

Modified by ranom01 at 3:26 PM 9/7/2008

Modified by ranom01 at 3:27 PM 9/7/2008

Tyson · 09-07-2008, 10:17 AM

whats most consistent for you is that everything but the grooves on the input shaft points to it being an 89 tranny. the number of groove thing may just be an overlap during the manufacturing year to the newer 2 groove. but the main shafts are identical anyway, so theres really no need for confusion.

you have an 89 tranny.

lsmeshrex · 09-21-2008, 12:10 PM

trying to replace the transmission in my 91 crx dx with a 96 non vtec motor in it. Bought a 96-00 clutch to match the splines(20) on the transmission i bought at the junkyard. however, the clutch i bought is not bolting to the flywheel on the engine.
dont know what the transmission originally came out of, just that it is a 88-91 cable tranny with 20 splines. just put in new seals in anticipation of recieving the new clutch.

the original clutch from the engine i have has 21 splines and is a smaller than the one i puchased(said to be 96-00 and 20 splines) the one i purchased does however fit on transmission i have.{ L3-2418358 and inside the stamp is 12/21}

Can any one help me figure out: what tranny i have, flywheel i need, or a clutch the correct diameter with 20 splines that i can order somewhere?PLEASE HELP...

radex7 · 09-30-2008, 12:41 PM

Well, this is really helpful. Just picked up apparently a 1990-1991 tranny from 1989 CRX Si for 90.00. I wanna take it apart and learn it, if I succeed I will use it as a swap for my 88 - 4 speed STD. oops, just rambling now in a really old thread. Just wanted to say thanks for the info, and make sure it ends up in my subscriptions...

MOE@Hyper16Valve · 10-03-2008, 01:12 PM

This is really GOOD old school 411 since these transmissions are like 20 years old almost...

03-07-2006, 05:14 PM	#3
Tyson Senior Member Join Date: Apr 2002 Location: I am, Tyson, in 90504 Posts: 14,389	Re: what to look for to identify si tranny? (omgwtfbbqcrx) only way to know for sure. added the other graphic. Modified by Tyson at 10:17 AM 8/27/2008 __________________ Don't IM me your TECHNICAL question. Start a thread, I'll answer there. FS: Brake Prop Valves - 4040 $45 each SHIPPED FS: Mugen CF-48 13x5.5 -38 Wheels NIB

06-30-2007, 11:30 AM	#6
Bense Moderator Join Date: Mar 2003 Location: πmp1ng my calculator, SC Posts: 9,056	Re: what to look for to identify si tranny? (omgwtfbbqcrx) great thread __________________ Calculus 3\| Engineering Statics (Statics, NOT statistics.) \| Physics w/ Calculus F2D/H2D kit, MFactory 3/5 D gears http://honda-tech.com/showthread.php?t=2378468

06-30-2007, 11:32 AM	#7
welfarepc Senior Member Join Date: Dec 2006 Location: West Coast, Canada Posts: 1,287	you dont need a new ECU... even for auto to manual swap u dont need one. auto ecu works for manual swap u just get a cel code because the shifter always stays in park. maybe that will save u some money! dan __________________ RULE: Turbos make torque, and torque makes fun.

12-01-2007, 08:48 AM	#10
J-Parts Join Date: Dec 2007 Location: Heerenveen, Netherlands Posts: 4	Re: (ILcrxsi1) Ok call me stupid : L3-1...... = 88/89 21 teeth clutch spline? L3-2...... = 90/91 20 teeth clutch spline? and what should I make of those numbers on the stamp above the filling hole?

12-02-2007, 01:27 AM	#12
J-Parts Join Date: Dec 2007 Location: Heerenveen, Netherlands Posts: 4	Re: (jlicrx) But if you refer to the JDM/Euro ED9 D16a9/D16z5 engines there are 3 types of production models : -88 model <]S100000 21 teeth -89 model S100000-200000 20 teeth -90/91 model [>S200000 20 teeth -88 model -89 model non facelift but with D16z5 engine -90/91 model facelift + D16z5 engine Sometimes I still have problems identifying the right clutch for the D16z5 , I sold some this year and ppl had problems with the clutch I supplied even checking EPC or gearbox no. Sometimes the clutch cover woud not fit onto the flywheel. LUK clutches state that the -89 model has a smaller disc + different pressure disc, Honda EPC also gives different numbers for the 89 and 90/91. The main issue here is that these are old cars and many times the tranny has been swapped for a different one. And if they used the wrong tranny often a different plate/cover has been used.. leaving the future owners with the crapp of ordering the wrong parts. Give me the simplicity of B-series LOL

09-07-2008, 10:17 AM	#15
Tyson Senior Member Join Date: Apr 2002 Location: I am, Tyson, in 90504 Posts: 14,389	Re: what to look for to identify si tranny? (ranom01) whats most consistent for you is that everything but the grooves on the input shaft points to it being an 89 tranny. the number of groove thing may just be an overlap during the manufacturing year to the newer 2 groove. but the main shafts are identical anyway, so theres really no need for confusion. you have an 89 tranny. __________________ Don't IM me your TECHNICAL question. Start a thread, I'll answer there. FS: Brake Prop Valves - 4040 $45 each SHIPPED FS: Mugen CF-48 13x5.5 -38 Wheels NIB

09-21-2008, 12:10 PM	#16
lsmeshrex Join Date: Dec 2004 Location: Tampa/St. Pete, FL Posts: 7	Re: what to look for to identify si tranny? (Tyson) trying to replace the transmission in my 91 crx dx with a 96 non vtec motor in it. Bought a 96-00 clutch to match the splines(20) on the transmission i bought at the junkyard. however, the clutch i bought is not bolting to the flywheel on the engine. dont know what the transmission originally came out of, just that it is a 88-91 cable tranny with 20 splines. just put in new seals in anticipation of recieving the new clutch. the original clutch from the engine i have has 21 splines and is a smaller than the one i puchased(said to be 96-00 and 20 splines) the one i purchased does however fit on transmission i have.{ L3-2418358 and inside the stamp is 12/21} Can any one help me figure out: what tranny i have, flywheel i need, or a clutch the correct diameter with 20 splines that i can order somewhere?PLEASE HELP...

09-30-2008, 12:41 PM	#17
radex7 Member Join Date: Jul 2008 Location: Blue Lake, CA, USA Posts: 67	Well, this is really helpful. Just picked up apparently a 1990-1991 tranny from 1989 CRX Si for 90.00. I wanna take it apart and learn it, if I succeed I will use it as a swap for my 88 - 4 speed STD. oops, just rambling now in a really old thread. Just wanted to say thanks for the info, and make sure it ends up in my subscriptions...

10-03-2008, 01:12 PM	#18
MOE@Hyper16Valve Senior Member Join Date: Jan 2007 Location: WESTCOAST,HAWAIIANSTYLE, PA KA LO LO Posts: 4,213	Re: (radex7) This is really GOOD old school 411 since these transmissions are like 20 years old almost... __________________ Thomas Itsuo Yamaguchi aka "PAPA/YAMA" (1934-2006) <FONT COLOR="purple">RHanDy "Questoyz" Gagan (1980-2006)</FONT> We'll see you when we get there.

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