MC 1 Question and greetings from new member

[PeteK]

Hello all,

Been reading through post after post and learning as I go. A wealth of information for sure.

Current project is a 1969 Starcraft StarChief with a 3.0 GM and an MC-1 stern-drive. Have the lower unit off for painting and new water pump kit and will be re-installing in near future. Goal is to get in a test run on the water then perform additional service if required - like if the oil is milky.

Question: What is the machine screw in the attached link?

Best,

PeteK

 

[Jcris]

Welcome aboard,
Lots of knowledgeable folks here. Can't help with your question but hopefully someone will chime in

 

[PeteK]

Thanks, happy to be in the mix.

 

[ThomW]

Haha. That's a stumper....No idea what that is, but I don't think it is original or supposed to be there.

 

[Rick Stephens]

That stuffed into the grease zerk hole?

 

[Alumarine]

I'm going to guess that it's plugging the opening where the gimbal bearing grease fitting was.
Although on the older drives they didn't have a grease channel for the gimbal bearing so I might be wrong.

What's the serial no.?

Oh, and welcome?

 

[PeteK]

Thanks for the responses. I've yet to find a serial number as the stickers are way too faded. If there is some hidden stamped or engraved serial location I'd love to find it. It is definitely an MC-1. That I know at least for the lower unit. Also the corresponding hole on the starboard side of the housing has a few threads protruding like it goes all the way through. Spoke to the previous owner who has no idea why it is there. He is familiar with the screw/location but lived with it and apparently was not curious enough to investigate.

 

[Alumarine]

On the port side of the drive there might be a serial no. under the decal that's approximately 1"x3"

 

[PeteK]

Thanks I'll try under the decal.