Jump to content
SAU Community

S2 Rb25Det Cas , Rebuild Or Replace ?


Recommended Posts

List price through Nissan is $1300 ex Japan ...

Cheap as :P

I always thought the Hitachi CAS was easier to rebuild but apparently not? probably should of had a go at my spare broken CAS today but forgot all about it.

Link to comment
Share on other sites

So I pulled one of my spare CAS apart yesturday and all went pretty good, I had to drill the pin that holds the engagement drive out and bent the pickup disc a bit. Not sure if the new sensor comes with a new disc? I was thinking about just using a roll pin (Cutting down to size) in the hole for the engagement drive

Is there any parts list at all for these? Bearings are easy enough to replace but the rest of the stuff not so much

Link to comment
Share on other sites

Is there any parts list at all for these? Bearings are easy enough to replace but the rest of the stuff not so much

So bearing is easy enough without doing any damage? My bearing is a little notchy.

Link to comment
Share on other sites

you have to pull the engagement drive off the shaft to get one of the bearings off. To do this you need to get the disc out of the sensor. I think you can unscrew half the sensor and just move it away (this is how I did it) but not 100% sure that this doesnt damage the sensor.

Edited by 89CAL
Link to comment
Share on other sites

  • 7 months later...

Does anyone know if the Hitachi CAS is a direct swap to the Mitsubishi CAS?

I bought a second hand Mitsubishi CAS but the wiring plug is different between the two CAS units. If the wiring pin out is the same i'm thinking about sourcing a plug to rewire the loom to try the Mitsubishi CAS. Plus side would be that you can still buy the Mitsubishi CAS brand new but not the Hitachi.

Link to comment
Share on other sites

No they are not. Wiring is least of your problems - wiring needs to be reversed but the drive on the end of the camshaft is different.

Does anyone know if the Hitachi CAS is a direct swap to the Mitsubishi CAS?

I bought a second hand Mitsubishi CAS but the wiring plug is different between the two CAS units. If the wiring pin out is the same i'm thinking about sourcing a plug to rewire the loom to try the Mitsubishi CAS. Plus side would be that you can still buy the Mitsubishi CAS brand new but not the Hitachi.

Link to comment
Share on other sites

I'll have to get a Photo of the 2 different CAS i have, both are for the r33 RB25 not the NEO. both have the same shaft that goes into the camshaft.

Just looking at the CAS one has the Mitsubishi logo visible the other does no just a solid metal case.

Did a quick search and found one that i have on my car (1995 R33 S1.5 RB25DET) 104_0638-1.jpg

This is the Mitsubishi CAS that has a different plug to the one above IMG_0405.jpg

No they are not. Wiring is least of your problems - wiring needs to be reversed but the drive on the end of the camshaft is different.

Link to comment
Share on other sites

I ended up buying a new one at the time because I needed good signals for and aftermarket brain . People tell me that these CAS units go off over time and most original ones won't be at their best . Lots of heat cycles and bearings wear over time .

New can be expensive but probably the simplest and best result .

A .

Link to comment
Share on other sites

I'll have to get a Photo of the 2 different CAS i have, both are for the r33 RB25 not the NEO. both have the same shaft that goes into the camshaft.

Just looking at the CAS one has the Mitsubishi logo visible the other does no just a solid metal case.

Did a quick search and found one that i have on my car (1995 R33 S1.5 RB25DET) 104_0638-1.jpg

This is the Mitsubishi CAS that has a different plug to the one above IMG_0405.jpg

Those are both Mitsubishi CAS and the plug should fit both. I have had both on my car

This is a Hitachi CAS:

Genuine-Nissan-Cam-Crank-Angle-Sensor-23

If the 2 CAS' you have pictured are in any way different, one will be an RB25 CAS and one would possibly be a CA18 CAS

  • Like 1
Link to comment
Share on other sites

Now i'm confused, i bought a R33 RB25DET CAS of Ebay ( and it is the Mitsubishi logo one but is a diffrent plug.. did CA18s come out with the Mitsubishi ones? im thinking the one from ebay might not be a true rb25 cas but did come with the engine bracket that the cas bolts onto under the timing belt cover which is defiantly for rb25.

Ill get some photos tomorrow if someone could help and confirm if i have the same plug or a different CAS plug.

If the 2 CAS' you have pictured are in any way different, one will be an RB25 CAS and one would possibly be a CA18 CAS

Link to comment
Share on other sites

Thanks for confirming, now to see if i can get my money back via PayPal as it was advertised as a RB25 turbo CAS.

Is Kudos Motorsport the cheapest place to buy a CAS brand new? currently $660 http://www.kudosmotorsports.com/catalog/nissan-cam-crank-angle-sensor-cas-genuine-nissan-skyline-r32-gtr-gtst-gts4-gts25-r33-gtr-gts25t-gts4-p-1176.html

The one on the left is an rb25 one. Not sure what the one on the right is off. Z32 or CA18 I guess?

Link to comment
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
 Share




  • Similar Content

  • Latest Posts

    • Hi all, I need to get this HKS SLD attached to my stock ECU because I've now got the German autobahn and faster European circuits to contend with.  The car is a manual 2dr ER34 with an AT ECU and I've realised the AT ECU has two pins for speed sensor signals: Pin 29: Vehicle speed sensor signal (Vehicle speed sensor 2) Pin *58: Output shaft rotation sensor signal (Vehicle speed sensor 1) - *RB25DET A/T model only Before I go butchering this harness, is anyone sure of which pin is the correct one for signal adjustment? The attached document from HKS indicates pin 29 but I found this situation mentioned in the following thread on a different forum (R34 GTT Auto Trans Speed Cut Problem | Zerotohundred) mentioning pin 58 needing to be altered by member zephuros, albeit it seems to be for an RSM-GP and the info appears to be old.  R34_All_Workshop_Manual-pages-2.pdf R34_All_Workshop_Manual-pages-3.pdf R34_All_Workshop_Manual-pages-1.pdf HKS SLD Vehicle Pin out P59-P70 ER34-pages.pdf
    • Embrace the freedom of casual encounters on the best dating app in town! Verified Maidens Superlative Сasual Dating
    • Slimline sub on the rear parcel shelf is doable. Pioneer TS-WX140DA is only 70mm high.   
    • People like Johnny Dose Bro might be laughing at my post because I accidentally added 100mm to my numbers. 350-355 is indeed the lower limit. 450 is off-road Skyline spec.
    • What is the "compromise" that you think will happen? Are you thinking that something will get damaged? The only things you have to be concerned about with spherical jointed suspension arms are; Arguments with the constabulary wrt their legality (they are likely to be illegal for road use without an engineering certificatation, and that may not be possible to obtain). A lot more NVH transmitted through to the passengers (which is hardly a concern for those with a preference for good handling, anyway). Greatly increased inspection and maintenance requirements (see above points, both).   It is extremely necessary to ask what car you are talking about. Your discussion on strut tops, for example, would be completely wrong for an R chassis, but be correct for an S chassis. R32s have specific problems that R33/4 do not have. Etc. I have hardened rubber bushes on upper rear control arms and traction rods. Adjustable length so as to be able to set both camber and bump steer. You cannot contemplate doing just the control arms and not the traction arms. And whatever bushing you have in one you should have in the other so that they have similar characteristics. Otherwise you can get increased oddness of behaviour as one bushing flexes and the other doesn't, changing the alignment between them. I have stock lower rear arms with urethane bushes. I may make changes here, these are are driven by the R32's geometry problems, so I won't discuss them here unless it proves necessary. I have spherical joints in the front caster rods. I have experienced absolutely no negatives and only positives from doing so. They are massively better than any other option. I have sphericals in the FUCAs, but this is driven largely by the (again) R32 specific problems with the motion of those arms. I just have to deal with the increased maintenance required. Given how much better the front end behaves with the sphericals in there.....I'd probably be tempted to go away from my preference (which is not to have sphericals on a road car, for 2 of the 3 reasons in the bulleted list above), just to gain those improvements. And so my preference for not using sphericals (in general) on a road car should be obvious. I use them judiciously, though, as required to solve particular problems.
×
×
  • Create New...