1990 Sylvan Offshore

[boston 6902]

The original sticker is long gone from the valve cover so I cannot find the serial number. Is there any other way of identifying the engine so I can get parts. The Engine block is stamped with OMC, GM and made in Mexico I think.... The only numbers I have been able to find are on a raised plate right below the starter and distributor cap. M02278RB/T1038034.... Then on the block further back are a couple numbers but I can only read on - 2772287. Any help would be greatly appreciated.

 

[Bondo]

Ayuh,..... Welcome Aboard,..... 1990 will be a Cobra drive,.....

How many cylinders,..??
4 would be a 3.0l,....
6 would be a 4.3l,....
An 8 will be a SBC, either a 350 or a 305,....

 

[boston 6902]

yeah, sorry I left that out. It's a 3.0 4 cylinder. I'm trying to find out the year, make n model of the engine. I found out Evinrude/Johnson bought out OMC. I called Evinrude and had to send in some pictures of the engine because there are 2 models for that year. Waiting to hear back from Evinrude/Johnson....

 

[Bondo]

I found out Evinrude/Johnson bought out OMC.

Ayuh,..... I think you'll find Bombardier bought out OMC corp, dropped OMC into the dustbin of history, 'n spun off Johnnyrude into it's outboard division,....

 

[southkogs]

Usually on the older OMCs there was a tag on the engine - toward the rear, usually on the starboard side. A 1990 3.0l OMC would have a model number like 302AMRPWC 1990. An '89 would be a similar number.

 

[boston 6902]

I have found the numbers on my 1990 offshore sylvan, its got a 1988 3.0 omc engine anr the numbers are AMRGDP MODEL NUMBER, T01038034 SERIAL NUMBER.

I AM STILL LOOKING FOR THE 1988 3.0 OMC ORIGINAL OWNERS REPAIR MANUAL, EVINRUDE SAYS THEY WERE ALL LOST AFTER THE BUY OUT..?