Mercruiser gauges

[oldsub86]

How do I find out what a certain part # is intended for?

63780 A1 is the number - a gauge package for a Mercruiser but how do I tell if it is intended for a 4, 6, or 8 cylinder? Or - are they adjustable so that it should work with any # of cylinders?

Randy

 

[Bondo]

Re: Mercruiser gauges

Ayuh,... Other than changing the setting on a tach,...
Gauges don't care how many cylinders are in a motor...

 

[oldsub86]

Re: Mercruiser gauges

Yes, but is the tach adjustable? Many automotive tachs can be changed from 4 to 6 to 8 cylinders. Is the same true of the Mercruiser tach?

Randy

 

[Alpheus]

Re: Mercruiser gauges

Yep. There is a rotary switch on the back of the tach to turn to whatever you got...

 

[Howard Sterndrive]

Re: Mercruiser gauges

no - those 1960's merc gauge kits had to be ordered with the proper tach

if I had to guess, A1 would be 4 cyl, A2 would be 6 cyl, and A3 would be 8 cyl tach... but that is a guess

if you have the tach - flip it over and look -it will be stamped # cyl

if you're shopping - ask the seller

 

[oldsub86]

Re: Mercruiser gauges

Therein lies the problem. Seller has no idea. Cannot compare with my boat as it is about 200 miles away.

Randy

 

[Howard Sterndrive]

Re: Mercruiser gauges

if the seller is not willing to flip it over and read it, shop elsewhere.... they're old parts, but not actually that rare.

 

[oldsub86]

Re: Mercruiser gauges

I'm guessing he is just not knowledgable about things like this. I may have to go and have a look.

Randy