As you might have seen in the other threads, we are broken down in Billings, MT and are dealing with a potential full overhaul of our engine.
The latest snag - the ESN on out 8V71 is "8VA-258845" and the model number stamped on it is "7087-7340".
According to the techs here and the MTU model decoder (http://2-cycle.mtu-online.com/extras/engine-model-number-decoder
) that indicates that we have a right hand turbo 8V71 from 1973.
But... We've just double confirmed it is installed with left-hand rotation, and no turbo.
This has left the shop guys here at a loss as to how to order parts and how they should configure this engine. They'd normally bring the engine back into spec to match the model number, but they are now not sure what changes might have been made since nothing lines up.
Question: What was the original 8V71 model number used in a 1961 GM-4106?
And -- what gotchas and issues might the shop encounter trying to work on an turbo 8V71 righty that is living life as a naturally aspirated lefty?
I'm trying to stay one step ahead of the shop guys who are also researching this.
Wisdom appreciated. Feel free to call 408-667-9022 if you have any urgent thoughts.