how to identify motor

Discuss the RB20, RB25 and RB26 series engines.
tegguy
Posts: 76
Joined: Mon Feb 05, 2007 1:33 pm

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I am looking at buying a 240SX off someone here and it supposedly has a RB20DET motor in it. I am new to nissans Can someone tell me where on the motor it says what it is? I know where it is on hondas but this is my first 240. perhaps a pic to show also


minivan_don
Posts: 316
Joined: Fri Apr 23, 2004 7:29 am

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there will be a "rb20" stamped on the upper timing belt cover if its a rb20det (duh) as well as the coil pack cover says "Nissan 24 valve..."

rb25 has no stamp but the coil pack cover says "Nissan 2500cc"

rb26 has a similar stamp as the rb20 ...


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Chaos the Xile
Posts: 789
Joined: Thu Feb 09, 2006 4:56 pm
Car: 1974 Datsun 260Z

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Some RB20's don't have the "RB20" stamped timing cover. RB25's have a extra hump on the timing cover and coil cover reads "TWIN CAM/24 VALVE/2500 NISSAN"

wob
Posts: 28
Joined: Tue Jan 23, 2007 11:41 am
Car: 93 240sx fastback in the works

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Also u can check out the ecu...It'll read something like MEC-r212...

But if ur scared that there's a ka in it just count the cylinders...So long as it has an inline 6 turbo in it, u should be fine...

Its real hard to mistaken an rb for a ka

madcowvert
Posts: 1112
Joined: Thu Jan 05, 2006 12:36 pm

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also the manifold says "eccs" ( or something like that) on the top.

Yellow4g63
Posts: 3718
Joined: Mon Jan 20, 2003 6:07 pm
Car: 95 Nissan RB20 240SX RB20
91 Nissan NX2000 VE power
95 Nissan 240SX Stock
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Here is a pic of my RB20 when it was stock.

hope that helps.

Cpt_Impossible
Posts: 488
Joined: Thu Jul 06, 2006 8:03 pm
Car: G35 6MT
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Just use google images and search for _____ and it will find thousands of pics for you sr, rb20/25/26..., kae, kade... it is the easiest way to find pictures of anything.

Cpt_Impossible
Posts: 488
Joined: Thu Jul 06, 2006 8:03 pm
Car: G35 6MT
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