S2 Rb25Det Cas , Rebuild Or Replace ?

[discopotato03]

Asked elsewhere and yes I searched first .

If you want a fresh CAS can the sensors be replaced or do you have the replace the complete assembly . Mine is a 96 S2 GTS25T BTW .

Cheers A .

[wolverine]

Dan @ ERD has replaced the guts of them but I really think you should leave it alone unless there is an issue with the existing one. Get it on the dyno and see what happens before you chase your tail replacing perfectly serviceable parts.

Presumably Automotive Service Solutions has the bits to repair them.

[AngryRB]

Asked elsewhere and yes I searched first .

If you want a fresh CAS can the sensors be replaced or do you have the replace the complete assembly . Mine is a 96 S2 GTS25T BTW .

Cheers A .

ive got a second hand one with a broken shaft, the rest could be used if you want it..

[t_revz]

Pretty sure I read somewhere that mercury Motorsport had new diamond cut disks fitted to some customers cars to fix high speed noise.

Also someone wrote recently about opening them up and re-aligning the disk to the optical sensor?

Mine is noisy from idle upwards so also interested what's available

[boostn0199]

I opted just to get it over and done with and buy a new 1 since had about 3 2nd handers fail was around the 600 mark.

[R.3.2.G.T.R]

i think paul (dirtgarage) is also selling modified one as well

[Dan_J]

when i was at the local auto elec awhile ago he was making a vl rb30 cas work on a rb20 so worth a shoot if its cheaper

Edited December 23, 2012 by Dan_J

[Kenna802]

Mate you can buy the new sensor from triton ( supercheap can order it in over night ) approx 160. Add ten bucks for 2 new bearings and your done

[discopotato03]

Does anyone have links to or part numbers for the sensors inside these Nissan RB CAS units ? The bearings look like late alternator ones so shouldn't be a prob .

I think Kudos sell new CAS units complete but at $1000 plus is very exy . If I can get to Nissan in Rockdale I'll get them to price one , I expect much the same thing .

My CAS is a Mitsubishi and its Nissan Pt no is 23731-02U11 which is the pre mid 97 R34 CAS type .

Cheers A .

[89CAL]

Kudos sell them for just over $400 not sure where your getting the $1000 from?

I bought a refurbed one from the states for just over $100. From RawBrokerage I think

[discopotato03]

http://www.kudosmoto...ts4-p-1176.html

This is from their site .

Edited January 3, 2013 by discopotato03

[89CAL]

hmmm thats odd

I was looking at buying a new one not to long ago (for S1) and they were a little under $500

perhaps they are becomming obsolete?

[89CAL]

These (AFAIK) are recon units from the US. Much cheaper anyway. Have an S1 CAS from them on my car at the moment with no issues

http://rawbrokerage.com/Raw-Brokerage-Cam-Angle-Sensor-CAS-RB25-NEO-R34-RB26-rawb-cas2.htm

http://rawbrokerage.com/Raw-Brokerage-Cam-Angle-Sensor-CAS-RB20-RB25-RB26-rawb-cas1.htm

[discopotato03]

Are they real Japanese ones or PRC ones ?

I have a link to an American 240SX site that goes inside KA24DE distributor/optical CAS units . I would be very surprised if there wasn't some internal sensor pickups that were common to SR or KA ignition systems of the same era .

Surely only the sensor and bearing are wearing parts and if we can find new ones it makes thousand dollar new assemblies unnecessary . .

I tried searching Tridon for ignition bits and found nothing .

A .

[89CAL]

Are they real Japanese ones or PRC ones ?

I have a link to an American 240SX site that goes inside KA24DE distributor/optical CAS units . I would be very surprised if there wasn't some internal sensor pickups that were common to SR or KA ignition systems of the same era .

Surely only the sensor and bearing are wearing parts and if we can find new ones it makes thousand dollar new assemblies unnecessary . .

I tried searching Tridon for ignition bits and found nothing .

A .

I swear I'm not being a Smarta$$, but does it really matter?

genuine JECS/Mitsubushi/whatever internals I imagine is better, but for the price you cant really complain

[discopotato03]

I'm only looking for part numbers because armed with these you have a chance of finding them . Looks to be Nissan RSB-014

http://www.ebay.com.au/itm/CRANK-ANGLE-SENSOR-REPLACES-RSB-014-NISSAN-BLUEBIRD-PINTARA-SKYLINE-R32-R33-R34-/190716923667?pt=AU_Car_Parts_Accessories&hash=item2c679d4f13

For the work involved in changing the pickup I wouldn't buy a no name POS if I could get a genuine or at least Japanese made replacement part .

A .

[89CAL]

Yeah just the price of a whole unit from america is pretty good.

Changing the sensor would be alright, not sure if anyone has a number for the bearings, but I have a dead CAS here I wouldn't mind playing with. Gotta try and remember how to pull them apart but. there a bit of a pain in the way they are designed (The S1 sensors that is)

[discopotato03]

Ok , from digging around it seems that there were/are two optical sensors made by Mitsubishi and Hitachi . I think the Mitsy one is Pn J926 and the Hitachi RSB14 or RSB014 .

Taiwan Ignition System (TIS) is making replacements with their own number ie Mitsy J926 = TIS242 and Hitachi RSB14 = TIS 203 .

I'll try to talk to Rockdale Nissan to get prices on CAS units and the internal sensors at least for my Mitsubishi CAS if available .

Cheers A .

[discopotato03]

Fun stuff with a Mitsi CAS , thats the Mitsi J926 sensor BTW and in another link I'll post in a sec it looks like the Hitachis are a bit harder to rebuilt especially if you wanted to use an aftermarket sensor wheel .

http://www.rbz32.com....php?f=10&t=858

These butchers need to learn about soft jaws for the vice and preferably use a hydraulic press .

This ones about changing the disc in a (I'll assume Hitachi CAS) which uses pressed on rings to hold the std disc in place .

http://forums.nicoclub.com/anyone-take-a-cas-apart-t369130.html

Note the difference in the Hitachi RSB14 optical sensor .

A .

Edited January 3, 2013 by discopotato03

[t_revz]

Mine has the fluctuations getting worse with rpm but I noticed today when going from no throttle to half throttle quickly as I came out of some corners it jumped backwards 2 boxes of rpm in map tracer giving a big flat feeling before coming back to life.

Anyone else get similar things from what I presume is belt harmonics? Or just further evidence my sensor is crap?