Model Specific Questions and Info > MK2 Golf/Jetta and Audi 5k

mk2 td engine block code mf

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restored87td:
I am wondering what physical difference there is between the MF and the ME engine code ? I need to replace my td MF block ,can the ME block be used? I know the ME was used only on the NA diesels but was that because the long block did not have  hydraulic  heads ,turbo charger, and td  diesel pump?

libbydiesel:
I have seen the ME and MF engine codes used for both engines with hydraulic lifters and engines with solid lifters which makes some iterations of the same block code NOT interchangeable.  That was a really bad move for VW to make.

The MF engine code was used for turbo-diesels and has piston cooling oil jets installed in the block.  The ME engine code was used for non-turbo engines and does not have the piston cooling oil jets.  From what I have seen, the ME blocks have the pad machined flat where the jets go, but do not have the holes machined for the jets to be installed.  It is possible to have those holes machined in the ME block and install the jets.  You could potentially transfer them from the TD block you are replacing.  With the squirters installed, the blocks would be functionally the same.  I have a solid lifter ME block that I have been planning on turning into an MF block by adding the jets.  I will probably make a jig for hole placement and afterward might rent it out for others who would like to do the same. 

restored87td:
Thank you!!! I knew about the oil jets but forgot. That makes total sense now why the different code MF vs ME. Thanks again.
Rick

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