Volvo Penta MD2B cracked cylinder block

[Jenleecoop]

Hey guys,

So, yeah, my baby had a cracked cylinder block. Is that a part I can remove and replace or do I need to also replace neighboring parts? I mean, gaskets of course, but does the cylinder need to be paired with the piston or anything? I think I have access to another motor and am trying to decide whether to take parts from that one or swap motors then cannibalize parts from this one. I have both my heads removed and found one blown head gasket (cracked side). The other side looks okay.

Thanks!
Jennie

[SY Harmony]

If the other motor is good, it’s easier swap them out. Then use the broken one for spares.

[Fishspearit]

It's been 22 years since I sold my boat with its old MD2b, but from what I remember they are individual cylinder blocks and pretty easy to change out one at a time. Just a matter of using the right shims to get the proper compression when you put it back together.

[deblen]

Exploded parts views
https://www.marinepartsexpress.com/V...HEAD++MD2B.pdf


Workshop Manual http://www.varen4u.nl/pdfs/volvo/Vol...-D1-MD2-D2.pdf