Hello,
I have a 1978 Merc 402 short shaft that I rebuilt. Runs great, I replaced every rubber bit, every gasket, all the electric parts. Very reliable motor.
I would like to convert it to long shaft. I also have a 1971 leg from a 40hp. It looks pretty similar.
However, a 1971 midsection has a different part number than a 1978 midsection. It's quite an undertaking to swap all the parts.
I'm wondering if it'll work. Is a '71 midsection interchangeable with a '78 midsection?
Thank you in advance
Sam
I have a 1978 Merc 402 short shaft that I rebuilt. Runs great, I replaced every rubber bit, every gasket, all the electric parts. Very reliable motor.
I would like to convert it to long shaft. I also have a 1971 leg from a 40hp. It looks pretty similar.
However, a 1971 midsection has a different part number than a 1978 midsection. It's quite an undertaking to swap all the parts.
I'm wondering if it'll work. Is a '71 midsection interchangeable with a '78 midsection?
Thank you in advance
Sam