Jump to content
SAU Community

Recommended Posts

hi -

Pulled off my CAS to diagnose a no start problem and discovered a half broken splined shaft in it. I tried spinning the CAS shaft by hand but it seems siezed hence why it broke the spline.

I had a look with the torch inside the exhaust cam where the CAS goes and noticed the other side of the broken spline shaft. I tried picking the broken piece with a pick tool but it wont budge.Not sure if it can.

Could someone pls explain if that splined shaft is part of the Camshaft? Cause it doesnt appear part of the CAS. how do i replace it ?

I hate to cough up on a new cam.

cheers

Link to comment
https://www.sau.com.au/forums/topic/423603-r32-cas-problem/
Share on other sites

840857_B5_7_DDF_4_C47_A293_BB7_D565_D231 FCAE778_C_ACC7_4_D64_B7_CB_625_ECEF37256

Looking into the exhaust camshaft. You can see the broken bit.


1138_B1_BB_8_CDA_418_B_B0_DA_9_EF94_E80_ D8_F97962_03_D4_4_D78_95_B7_E56_FEF6_C7_E45_FF45_F_24_FE_4923_BA2_E_724357_CCD44


first pic is the birds eye view into the CAS. You can see the broken half moon bit inside.The broken spline shaft piece which came out of the CAS

5_B5803_B9_36_E4_4_C3_E_A88_E_461_AF39_DF6_FA092_E_9282_488_D_9_FF3_921_DFFC13_F DCA4375_A_76_F8_46_FA_B606_FA1_E7_B8_E08


..The biopsy. A lot of red dust from the seized bottom, bearing after finally turning it using the vise.

Link to comment
https://www.sau.com.au/forums/topic/423603-r32-cas-problem/#findComment-6817017
Share on other sites

Looks like you've broken the spline off the cam. The CAS spline is supposed to be female with a half moon that matches up with the male spline and half moon on the cam

cheers. So that means a new camshaft?

ps: I've posted a Wanted ad in the Forsale section for anyone that has a R32 - RB20DE camshaft and CAS. pm me if anyone can help.

Or if anyone knows where i can pick it up in melbourne.

Link to comment
https://www.sau.com.au/forums/topic/423603-r32-cas-problem/#findComment-6817506
Share on other sites

might be a good oportunity to swap out the motor for something better, if you cant do the labour yourself then you are up for a fair few $$$

I'll be doing the labor myself unfortunately. Otherwise yeah i would consider a swapout.

I have a pair of standard RB20DET cams, which are a slight upgrade over DE, and a CAS if you need.

as long as i dont have to pissfart around with the valve clearances and electronics, timings etc...

Link to comment
https://www.sau.com.au/forums/topic/423603-r32-cas-problem/#findComment-6818074
Share on other sites

Because they both use Hydraulic lifters there is no adjustment for the valve clearances and because the spline/drive on the exhaust cam is the same the CAS are the same.

The DET cams run eight degrees more duration on the inlet and .5mm more lift on the inlet. The exhaust cam specs are the same as the DE.

Link to comment
https://www.sau.com.au/forums/topic/423603-r32-cas-problem/#findComment-6818210
Share on other sites

I'll be doing the labor myself unfortunately. Otherwise yeah i would consider a swapout.

as long as i dont have to pissfart around with the

valve clearances and electronics, timings etc...

you will have to pissfart around with camshaft timing and retension the timing belt-you are doing all this with the motor out?
Link to comment
https://www.sau.com.au/forums/topic/423603-r32-cas-problem/#findComment-6818401
Share on other sites

you will have to pissfart around with camshaft timing and retension the timing belt-you are doing all this with the motor out?

I guess i was trying to say I need a drop in fit. Putting something non stock for the engine gets me concerned a little with having to mess with other stuff.

This is my friends car and she is on a limited budget. Trying to do it as good and inexpensive as possible.

Link to comment
https://www.sau.com.au/forums/topic/423603-r32-cas-problem/#findComment-6818511
Share on other sites

I guess i was trying to say I need a drop in fit. Putting something non stock for the engine gets me concerned a little with having to mess with other stuff.

This is my friends car and she is on a limited budget. Trying to do it as good and inexpensive as possible.

fair enough, i see where you are at, remember when it comes to cars (especially skylines) "good" and "inexpensive" are mutually exclusive terms
Link to comment
https://www.sau.com.au/forums/topic/423603-r32-cas-problem/#findComment-6818841
Share on other sites

fair enough, i see where you are at, remember when it comes to cars (especially skylines) "good" and "inexpensive" are mutually exclusive terms

I hear ya. I own an Alfa Romeo and an old school Ducati. I know the story line all too well with the exotic.

Link to comment
https://www.sau.com.au/forums/topic/423603-r32-cas-problem/#findComment-6819236
Share on other sites

You don't need the keyway in the cam I ran without for 3 years 400+hp no problem. They just need to be lined up in the right spot again

not sure I understand this. I believe im missing more than the keyway in the cam.

check my first two pics

Link to comment
https://www.sau.com.au/forums/topic/423603-r32-cas-problem/#findComment-6820431
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Because all parts that are put into your papers usually are assigned a badging if they did not come with one. So other people can just check that badging to tell if it is the parts your papes outline. But my pipe has NOTHING on it whatsoever. No idea why this even passed as a Mines pipe to begin with. I see this going two ways: -nobody cares and it's a non-issue, but that is unlikely -the pipe will just have to be assigned a bagding, for sake of argument, a Mines logo, and the papers corrected accordingly If it interests you I will post what the actual solution ended up being. All I care about is that it has to sound equal length and nobody can screw me later on because of a pipe being illegal.
    • The fasteners to the pipe are not subject to TÜV I guess, if we really start putting nuts and bolts through technical tests I'm going to hang the people responsible and then myself. Usually on a modern-ish EU normed car, you would just replace the pipe. Because if you start hacking away at it and welding new pieces on the cops will definitely find a reason to tow your car. That is just how it is sadly. On old cars and imports with no clear "standard" stuff like that won't matter too much. Most cops or inspectors probably won't even really know what they are looking at. But there is experts for this stuff even among cops, and some of them know the rules to a T and even have extensive knowledge about many vehicles. For "just a pipe" to be legal it usually is included in a set of parts, like a complete intake kit or a full exhaust. For example my exhaust needs to pass a noise test, meaning they have a standardized test track with a set of instructions and they run the car through there 3x for an average noise value that is 75dB(a) at point x of the test track. If it's above that, fail. For a turbo setup to be put in your papers you have to do dyno runs, emissions testing etc. So quite costly
    • Would this not be the same for the exhaust you've posted up?  If your exhaust volume and emissions are fine, why does the brand of pipe matter? 
    • The issue is more the fact that there is inspectors that deal with japanese cars a lot and they might know what a real Mines pipe looks like. And then they're gonna get antsy and not pass your car. But I'd have to talk to one of them about this, because you know as well as me that it's just a damn pipe and it effectively doesn't do anything. As I need to have my GT2860s and my exhaust setup (and the increase in HP) TÜV'd anyways maybe they can just correct the entry in the papers or assign a badge to the front pipe. I'm no expert either though, will inquire about this.     Thanks for the insight. Not sure if having a custom made pipe is good or not. Will find out in due time I suppose. Would be kind of funny if this was made in Germany though.
    • See this is a really tricky topic as technically the same rules apply to all cars but for cars but there is a difference. If you want to modify a car like the Skyline which never existed here you have a bit more freedom as they do not adhere to EU specs anyway. Any modification you do has to be in dividually checked anyway so as long as one of the inspectors think it's ok and within the TÜV ruleset you can get stuff like a top secret rear diffuser put in your papers. Which frankly would need a shitload of tests and certificates for EU spec cars, like a 2010 BMW M3 for example. But if you DO run these tests and all tests come out ok (safety stuff for the most part) there is no problem running such a part legally. It's just way too expensive to do for a single person on one car. The most touchy parts are emissions related mods, like an exhaust, turbos, air intakes. If it makes noise or alters the carbon emissions it's essentially illegal until you prove it's not. Meaning it doesn't exceed noise limits or have worse carbon emissions. I'd say for hoses if you replace them same same it doesn't matter what material they are or what brand you use. Same for nuts and bolts usually, they won't go and specifically check that your water hoses and some bolts are 100% OEM parts, that is nonsense.
×
×
  • Create New...