[Valiente]

The way I found out my Westerbeke W-52 was a Perkins 4-135 and was also a Mazda R2 block as found in thousands of Mazda B2200 and Ford Ranger pickups was by getting diagrams of the Mazda block and photos of all three from the internet.

See here: http://www.sailnet.com/forums/259474-post32.html

Go to a Westerbeke owners' forum and use Google. This took me some time, but knowing I can repower by rebuilding an extremely common pickup diesel changed my entire perspective about owning a "vintage" engine.

You can also pay to join Boatdiesel.com. The truth is out there, apparently:

http://boatdiesel.com/Forums/Thread.cfm?CFApp=9&Forum_ID=162&Thread_ID=33627

 

[Valiente]

Thanks Valiente!
Very helpful. The valve cover has pin holes all over and is tweaked. Well beyond brazing. I am still to green here to post with pics. Would be nice to show everyone.

Westerbekes are also, as far as I can recall, often either Mitsubishi or Isuzu blocks. Ask around, because you definitely want to limit your purchases from them if you can.

Although they aren't as expensive as Volvo, home of the twelve-dollar washer.

 

[Valiente]

There you go. Now, all you need to find out is if it ever was also a Japanese tractor engine or fit into some small pickup and you won't have to pay "marine spare parts" prices.