230sl engine block replacement

[paul_GB]

Can anyone advise whether a 230 block from an early 60's saloon 230 (carburettor)  can be used as a replacement on my 64 230sl engine? Might be a naive question. My 230sl currently has a 230 head on a 250 block.. and I have now sourced a saloon 230 block. Not sure exactly what saloon it came from.. could be a ponton and can't find out for sure.  Any advice would be very useful before I commit to buying the block. Thanks

Paul

[ctaylor738]

If it's from a carbureted engine, then it won't have the stuff for the injection pump (sprocket, shaft, etc.).

[ja17]

Even on the injected sedan engine the bore in the 220 series is different than the 230SL.  However the sedan injected block will work with a 230SL or 250 se, sl head. This way you can use the six cylinder injection pump from  your 230SL engine. Of coarse a carbureted engine block will not work with the fuel injection. 

[al_lieffring]

Paul it is possible that what you have is a factory replacement 230sl block. That is what is currently in my 230sl. it has the four main crankshaft, but the exterior casting has the foundry marks of a 250se/sl engine.

[mbzse]

Can anyone advise whether a 230 block from an early 60's saloon 230 (carburettor)  can be used as a replacement on my 64 230sl engine?

As mentioned, no, since this block lacks the furnishings for injection pump

I have a genuine 230SL engine block here that I can sell. Original dia 82 mm cylinders. Serial No is 127 10 007824  See attached pic
/Hans in Sweden

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[paul_GB]

Arh, of course.. I wasnt thinking,  I need the injection drive gear(!). The sedan 250 is clearly no good for what I want. Thanks for the offer of buying the block Hans - I'll give it some serious thought.

The block in my car is a rebuilt 7 bearing 250SE (129-980-22-009646) with an early 230SL head (127 01 0520). The engine runs very rich on idle and I cant seem to overcome it.. it idles rough and always has done. I cant improve it even after going thro the excellent linkage set-up guide and removing a shim from under the WRD and adjusting the IP idle mixture 'clicky' knob to the leanest setting. As soon as I raise the revs above idle it runs smoothly and the fuel/air mixture seems fine. I am suspicious the injection pump I have in the car is not correct for the 230SL head / 250 block combo and firstly need to verify whether my IP is a 230 or 250 type.. I'll check the forums for info on the subject. If I can sort this idle mixture problem then I can live happily with 250 block that I have.
As always.. Many thanks for the excellent guidance gents
Paul