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Conflicting Info Is Mine Series 1 Or Series 2 Rb25det

Char

By Char,
in R Series (R30, R31, R32, R33, R34)

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Char Experienced

Char

Posted
Posted

I've done some searching on this site and google etc, Im still stressing because i believed my engine to be a series 1 RB25det (as it has the ignitor ontop of cam cover) BUT today i bought an oil filter from a workshop, he gave me the wrong filter & upon returning i asked for the same filter currently on my car (Z442) the guy said they are for 1998+ RB25DET's only..

I've already bought cams for a series 1 RB25 yet to be fitted.

can anyone confirm this?

Duncan Grand Master

Duncan

Posted
Posted

the wrong oil filter could have been put on at any time in the past.....z224 is a straight replacement that is a little smaller so maybe a mechanic just used it because thats what they had on the shelf, or maybe like me they had to change to that when something like an oil fitler sandwich plate was installed.

however I am pretty certain Z224 is not correct, factory fitment on any skyline including post 1998. They are off ca18 silvia, micra etc.

Char Experienced

Char

Posted
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Posted

Thats great info guys, I appreciate it.

I have no AFM (Microtech ecu).

The guy pulled out his booklet and claimed Z442 filters are for 1998+ Rb25dets.. so the last of the R33's then R34s.

I'm hoping (as Duncan suggests) that its just the wrong filter currently on as the last filter change was done by a workshop.

I'll do an oil filter change this week, see how it goes with the Z442, might clear some things up

Kinks Grand Master

Kinks

Posted
Posted

Forget the oil filter that's on there, any monkey could have grabbed a random one that threaded on and used it. I don't remember seeing a Z442 in the reference book, I have a series 2 and it definitely uses a Z145A filter.

I run a Z145A on my S2 motor however its not post 1998. interesting how the guy said it was for late models?

1998 was the last year of the R33.

http://www.noelsautoparts.com.au/FILTER%20CATALOGUE.pdf

This book lists RB25DET in two date ranges, 91-98 and 98-on. 91-98 is the R33 and uses a Z145A filter, 98 on is the R34 and uses a Z442 filter. The Z442 will be no good on your R33, the thread will be wrong.

Duncan Grand Master

Duncan

Posted
Posted

Just to clarify that, Z224 has the right thread for all RBs, it is just physically smaller.

So it won't stuff anything, but the bigger the filter for the available space, the better

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