140 alpha 1

[hadaveha]

Does anyone know what was the first year for the 3.0 alpha one combo, my brother in law is looker at a 1978 boat he says it has a 3.0 140 with a alphaone but I thought a 1978 was a pre alpha.

 

[duped]

Re: 140 alpha 1

Many people (wrongly) refer to the early drives as Alpha Ones. Probably the case here. The squared off (no lifting eye) MR drive (later renamed Alpha One) came along in 1983. Of course there's a possibity that it's been re-powered, so without photos or even better, a serial number...who knows?

 

[matt167]

Re: 140 alpha 1

An Alpha one gen 1 leg can be mounted on an older gimball assembly.. I'd have to guess that is what happened if it is marked Alpha One

 

[hadaveha]

Re: 140 alpha 1

View attachment 213096View attachment 213097I do not have the numbers now but i have pics and i swear that outdrive looks like a alpha to me

 

[hadaveha]

Re: 140 alpha 1

sorry wrong pictureView attachment 213098

 

[achris]

Re: 140 alpha 1

That is an 'R', 'MR', or Alpha One drive (1983-1991)... And they can be used as a replacement for an MC-1 drive if it fails or is 'lost'... The 3 litre/140hp engine started with the MC-1 drive in 1969....

Chris........

 

[duped]

Re: 140 alpha 1

Yeah, that's an newer drive. As Matt stated, they may have been using that drive with the old style transom plate/ bellhousing, or they may have swapped everything over to the newer stuff, but I do not know why someone would bother swapping everything unless there was a major issue. If the bellhousing has rounded ears around the drive mounting studs, then you know it still has the pre-alpha transom stuff.