Chris Baranyar
Cadet
- Joined
- Jul 13, 2009
- Messages
- 18
I have purchased a new long block engine to replace the current motor SN # OM640085.The reason for the new motor is exhaust gasket failure and water entry into the block. The new motor has a 6 bolt exhaust manifold pattern same as the old motor. I removed the old exhaust manifold and it has a 5 bolt pattern. I bought a direct replacement of the old manifold containing a 5 bolt pattern. I have noticed on several web sites selling exhaust manifolds a discrepancy in the bolt patterns between the manifold and gasket. My question is this correct or was a mistake made at the factory when I bought the boat new back in 2003? Will it be acceptable to bolt the manifold to the new motor using the 5 bolt pattern?