Alpha Gen 1 Sppedometer

[rickyvols68]

I have an 89 Mercruiser with the Alpha one Gen 1 outdrive, the speedometer doesn't work, I've seen several threads about the gen 2 having the pickup on the leading edge above the torpedo...

The only hole I can see in mine is a hole in the side (see pic), so is this the pickup for the speedometer?

Thanks.

 

[thumpar]

Re: Alpha Gen 1 Sppedometer

That is the drain for the drive. You need a separate pickup if you have the gen 1.

 

[rickyvols68]

Re: Alpha Gen 1 Sppedometer

One of these?

From the looks of it this boat has never had one of these mounted, How did the Gen 1 speedometer work from the factory if something like this is required?

Sorry for the dumb questions, kinda boat illiterate here lol

 

[thumpar]

Re: Alpha Gen 1 Sppedometer

Yes that is the pickup. It might not have ever worked.

 

[rickyvols68]

Re: Alpha Gen 1 Sppedometer

Thanks for the info thumpar

 

[UncleWillie]

Re: Alpha Gen 1 Speedometer

Re: Alpha Gen 1 Speedometer

Alpha 1 GEN 2 Water Pickup Pitot.

... You need a separate pickup if you have the GEN 1.

Agree!

 

[jestor68]

Re: Alpha Gen 1 Sppedometer

The generation two pitot tubes(in the drive housing) usually get plugged up after a while too, resulting in folks attaching traditional pitot tubes and simply hooking up the sending tube to the transom mounted pitot tube.

 

[dan02gt]

Re: Alpha Gen 1 Sppedometer

rickyvols68, Instead of installing a pilot tube system that's going to lie to you like a cheap watch pick yourself up one of these:

Mark-4 Fishfinder/Chartplotter - Lowrance 000-10483-001