Originally Posted by Red91
Oh ok, I can't see signatures on my phone. I don't guess I'm familiar with that transmission or car.
From what I've seen, it was a transmission with basically two main users-several 60s AMC products, and then it was the auto of choice on a lot of British stuff. Of course ratios, TC configuration, etc varied between applications but it's a pretty basic 3 speed non-OD box.
This one is behind a low compression(8.0:1) 1.8L "B" series engine-it's essentially the same engine as was in US 72-76 MGBs but with a cast crank rather than forged. This is an old cast iron small bore/long stroke OHV engine that, in typically conservative British fashion, was dated when it was released in the 1950s. When the Marina first came to the US market, the MGB still ran on twin 1.5" carburetors, while the Marina simplified that to a single 1.75" carb(the MGB later switched to a single 1.75" carb, but it was pretty seriously strangled by some sharp turns in the exhaust manifold to accommodate a catalytic converter-the Marina has the same basic free flowing exhaust design as earlier MGBs). At 70-some-odd horsepower moving a 3000lb car, it's not going to win any races, especially with an auto. Once the transmission gets ironed out, the engine should respond to the same basic mods common to MGB engines, which should get it within spitting distance of 100hp. The one saving grace of having an old tractor engine is the fact that at least it's decently torquey down low...
Of course, even if the transmission comes back to life with a pan drop/fluid change, it's probably on borrowed time, and I don't know if I want to up the power until things are properly straightened out.