So after much headache’s with the VSS, I have finally discovered that low and behold, my JDM Y1 tranny actually has a Cusco LSD instead of the OEM Honda that I assumed it had. I can’t decide if this is a good or bad thing, I know the Cusco LSD is worth a lot, BUT I need a speedo gear that the transmission didn’t come with. So I called Cusco USA and they basically said they have to call Cusco Japan and see if they can even get the gear. Without the gear I will have no speedometer!
Also, I’m not even sure if the diff is okay. I had the Y1 installed in my car, took it for a spin, and every time I turned under power, a loud BANG BANG BANG could be heard. I’m hoping these are just my axle’s (which I know are blown). I really have no way of knowing otherwise, and the shop that the tranny is at now is very hesitant about opening something up that there is no specs or diagrams for.
wow now thats a surprise. my speed sensor was off in my last teg by about 12 mph. i just always used my garmin which give a speed thats usually within a mph or 2, mayb thatll work for ya till you get work on that gear.
the oem gear doesn’t fit onto the cusco lsd?? my oem gear fit like a glove onto my mfactory lsd. i assume you didn’t hear the bang when turning with your old trans? i have a feeling that lsd might be broken.
That’s what it looks like, as you can see the speedo gear is part of the LSD.
As for the possible brokenness, you could be right. I guess I’m hoping my that when my axle’s encountered the force of the LSD, they couldn’t handle it the same as the regular diff. Or maybe because I wasn’t running syncromesh…
Well,
Here is some good news for you, but I don’t have a solution for your missing speedo gear.
The diff isn’t broken, the “clunking” is the clutch plates in the diff binding together, and without the proper viscocity oil it will always clunk even though it is working; FYI: You may also have a KAAZ LSD which looks identical to the Cusco and also requires an aftermarket speedo gear. Run over to the autoparts store, drain the oil you’ve got in there now, install 80W/90 weight oil, it looks like chocolate syrup and usually for trucks or 4 wheel drive vehicles, into the trans casing and take the car for a ride. Accelerate in a low gear and tell me what you feel. The vibration should be just about gone, though you will feel some feedback in the wheel after that thick ass oil warms up.
Good Luck, and YES, what I just told you to do I KNOW will fix the problem! You’re the 1 trillionth person I’ve shared this knowledge with…
[QUOTE=.J.;2199312]Well,
Here is some good news for you, but I don’t have a solution for your missing speedo gear.
The diff isn’t broken, the “clunking” is the clutch plates in the diff binding together, and without the proper viscocity oil it will always clunk even though it is working; FYI: You may also have a KAAZ LSD which looks identical to the Cusco and also requires an aftermarket speedo gear. Run over to the autoparts store, drain the oil you’ve got in there now, install 80W/90 weight oil, it looks like chocolate syrup and usually for trucks or 4 wheel drive vehicles, into the trans casing and take the car for a ride. Accelerate in a low gear and tell me what you feel. The vibration should be just about gone, though you will feel some feedback in the wheel after that thick ass oil warms up.
Good Luck, and YES, what I just told you to do I KNOW will fix the problem! You’re the 1 trillionth person I’ve shared this knowledge with…
J.[/QUOTE]
The burning bush of cars has spoken. do it now or forever hold your peace:bow:
[QUOTE=.J.;2199312]Well,
Here is some good news for you, but I don’t have a solution for your missing speedo gear.
The diff isn’t broken, the “clunking” is the clutch plates in the diff binding together, and without the proper viscocity oil it will always clunk even though it is working; FYI: You may also have a KAAZ LSD which looks identical to the Cusco and also requires an aftermarket speedo gear. Run over to the autoparts store, drain the oil you’ve got in there now, install 80W/90 weight oil, it looks like chocolate syrup and usually for trucks or 4 wheel drive vehicles, into the trans casing and take the car for a ride. Accelerate in a low gear and tell me what you feel. The vibration should be just about gone, though you will feel some feedback in the wheel after that thick ass oil warms up.
Good Luck, and YES, what I just told you to do I KNOW will fix the problem! You’re the 1 trillionth person I’ve shared this knowledge with…
J.[/QUOTE]
won’t that mess up the trans though? as you know honda transmissions run with a engine oil viscosity. i bought a 01 prelude that had gear oil (80w90) and i thought the trans was finished until i checked the oil and smelled the gear oil. put the proper oil in and the trans runs like new. i’ve read that the oil passages are not made to handle the thicker 80w90 oil. interesting that cusco would make an LSD like that.
Red,
Yes sir, I am 100% sure that 80W/90 will turn the mill in the casing to keep the entire car’s gear set lubricated. I ran it in my own car for almost 5 years in a basic J1 set up with a KAAZ LSD and what was an annoyance at first, the grip of the clutch discs in the LSD, I actually began to miss once I moved on to a Quaife.
The first time I ran into this problem I was as confused as DEW is but after countless dead ends I contacted KAAZ of Japan and got poorly translated letter that explained the problem. This was in 1996…
Thanks .J. , that takes away a lot of worry for me :).
As for the speedo gear, I got a call back from Cusco Japan yesterday. I’m in luck, they do sell the gear, although it’s a pricey $120 to get it here (apparently the gear and the shaft are sold separately… I guess I need both)
Hopefully I’ll have the gear within the next two weeks, and we’ll see how she performs
Dew,
It’s an $80 part, $40 for the shaft and $40 for the gear iteself, but the air-freight and handling from Japan almost doubles that cost. Becareful installing it into your speedo and use plenty of oil when resealing the two halves of the speedometer. Also, lubricate the rubber seal, oil dabbed on your finger and run around the edge of the seal, that mates those two halves. Other then that the install is very straightforward.
The infamous clutch chatter of clutch type LSDs. Those are great for the track but suck daily driving. Low speed chatter and skipping when turning really gets annoying. Under more load the chattering should go away.
I remember my first clutch type LSD in my y1 when i took it for the first drive pulling out i was like WTF i got shafted on the tranny, but after i found out it was a KAAZ LSD i got the proper oil, and it helped the chatter alot but was still really aggressive, i daily drove it PITA… but i do miss it especialy driving in the rain lol broke free just fethering the throttle was a blast, GL hope your tranny works out for you
