Date: Fri, 12 Mar 1999 09:11:57 -0500
From: "Eric Law" <>
Subject: Re: B234

Paul, Might be easier to list what's the *same* between the two engines! A couple years ago, I looked into putting a 2.3 motor into an '86 900. I am very skilled with this sort of thing, have access to a machine shop, etc. etc., and still decided it was impossible. Most significant difference is that the B202 motor has a 45-degree angle built-in to the block. That is, if you set the motor on the ground, resting on the oil-pan mating surface, the top of the block (cylinder-head mating surface) will be angled 45 degrees to the right, looking from the pulley-end of the motor. The B234 motor has the top and bottom surfaces parallel, i.e. it sits vertically. My research indicated that even if I could fabricate the necessary parts to attach this motor to the tranny, the top of the engine would stick up through the hood. The motor is also a bit longer (to accomodate the drive for the balance shafts), and it's unclear whether it would conflict with the firewall! I was also a little concerned when I found out that apparently a lot of the 2.3 motors (early ones, at least) have problems with cylinder-head gaskets and the direct-ignition system (big $$$ to fix the latter!). My advice would be to get a 9000 with the motor already in it. Very nice car, and the prices on the older ones are pretty reasonable. Eric Law Paul Johnson wrote in message ... >Hi. >Anyone know the major differences twixt the B234 (later 9000 type) engine >and the B202 apart from the bigger piston/crank travel for the extra 300cc >and the balancer shafts? >Would it be possible to bung it on a B202 tranny and stick it in a 900 or is >it totally incompatible? I know the oil filter is in a different place and >other things have probably been moved about to make it go in transversley in >the engine bay but is it still basically a big 202? > >Oh yeah - is there a workshop manual (apart from the factory ones) as good >as the Bentley 900s for the 9000? The Haynes manuals are piss poor for the >later 2.3 9000s.. (Hence above question! ) > > >Cheers, >P.J.J.J. > > >

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