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Old 30-05-2013, 10:13 PM   #1
oxo
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Country: england
Location: isle of wight
Occupation: stonemason when the water's too rough!
Interests: boats engines beer
Boat name: outlaw
Boat make: marshan 18/crusader 17
Engines: merc xr2/ merc115
Cruising area: solent/round island if i got enough fuel!

Join Date: Oct 2008
Location: isle of wight
Posts: 208
engine block I.D

Can anyone help on this one?
I bought an engine block on here a while back on the understanding it was an XR2, just been getting around to rebuild it as a spare but the serial number stamped on it is OG110720, when I type this into the merc website it comes up as a seapro/marathon block 3 litre 225hp with a 3.377in bore.
this block only has a 3.155in bore(+.030 oversize) I'm not familiar with the seapro blocks, but this definitely looks like an XR2 block i.e. unpainted with the splodge of green on the top. I just wanna make sure the crank and pistons I have are compatible. Totally confused!
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Old 30-05-2013, 10:59 PM   #2
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Country: UK
Location: Portsmouth
Occupation: Marine Engineer
Interests: everything fast
Boat make: Phantom 28/Ring 16
Engines: 2x Mercury 3.0 250 EFI/Evinrude 70
Cruising area: Solent

Join Date: Nov 2005
Location: Portsmouth
Posts: 1,255
Sounds like a XR2 block. Crank and pistons will fit but centre mains are different, on older vertical reed models they are smaller. If you need any more info call me 07702958175. Thanks Rich
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Old 31-05-2013, 09:45 PM   #3
oxo
Registered User
 
Country: england
Location: isle of wight
Occupation: stonemason when the water's too rough!
Interests: boats engines beer
Boat name: outlaw
Boat make: marshan 18/crusader 17
Engines: merc xr2/ merc115
Cruising area: solent/round island if i got enough fuel!

Join Date: Oct 2008
Location: isle of wight
Posts: 208
block ID

Ok,
Thanks Rich, much appreciated
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