Cat 3208 Question

Hi Guys,

The boat I am buying is a a 1984 50' Kha Shing CPMY. It has 1984 375hp 3208s. One of the digital tachs has a couple of diodes that are not working making it hard to read the display. I found a guy on ebay that has 3 Cat digital tachs for sale and I am not sure if they will work on these engines.

The description for the listing follows:

-Caterpillar p/n 9X1116 Digital Tachometer - New in box

-Selectable flywheel tooth count switch on back. Switch has 15 positions to accomodate a variety of teeth from 30 to 208.

-Acceptable Tooth counts 60,136,151,156,183,113,134,132,126,84,30,130,140 & 208

-Tach has 4 terminals, Signal 1 & 2 inputs and Batt + & Batt - terminals.

-The tach requires no voltage to operate. The backlight connection needs 9-40vdc.

-Tach includes mounting bracket (not pictured)

Flywheel Tooth Count??? Other than counting very carefully, does anyone know where I might find the count or do you know if these tachs would work for me?

Thanks,
Shawn

Thanks for the info.

The tachs on the boat are not Cat brand. I am going back to the Bay area today for some other information and I will try and get the make and model of the existing ones.

Checked the tachs on the boat. They are Aetna Engineering out of Van Nuys, CA. No model # available.

To update....
I called Aetna Engineering this morning and was told they can repair my faulty tach for $40 plus the shipping. He said their turn around was only a couple of days.

Now that's what I'm talkin' about....

Thanks to all for the assistance.

I appreciate the response and I understand. But boating is the drug my wife and I have chosen. We don't buy into that "....2 best days..." crap. We love every part of it.

I had my first boat at 16 and I'm now 62. I'm a boater and I define people with boats as either, people who own boats, or boaters.

People who own boats have the boats you see at the marinas that are dirty, and neglected and only used 3-4 times a year. They're the ones who don't understand why it won't start on Memorial Day weekend when it ran good last Labor Day. I define "Boaters" as those of us that can't wait to be on their boats even if it's to repair, refine or just tinker.

Oh yeah, I'm a boater and I am seriously addicted. Some of my best weekends are spent just being on the boat and tinkering. This is my first oil burner and the largest boat I have ever owned and I can't wait. Having an engine room that's barely big enough to fit the engines in was not fun (past boat) and I am really looking forward to all the space on the new one.

Hi, my name is Shawn and I'm a Boater

Your comment was not received in a nasty way.

When I owned my Sea Ray I was active on the Club Sea Ray forum site. I enjoyed it very much. But now it just doesn't feel right to continue to participate on that forum. And Sea Ray owners can be a bit snobby towards non-Sea Ray people.

I will be continuing to post on this forum and I will share the progress in making an already really nice boat into an even better one.

I do get that feeling when I start an engine on a boat and it only gets better when I start the second one.

For those that say it's better than sex.... My only response is they're not doing the sex part right.

I agree. Our Sea Ray was an older boat and styled to still look like a boat. It was a good boat and well taken care of. Exceptional? Naahhh.

It worked well for us at the time but we out grew it. But there are Sea Ray owners that truly believe that if you don't own a Sea Ray you don't belong on the water. I never agreed with them when I owned one and I still don't.

They are entitled to their opinions. I will take this 28 year old Taiwan boat that I just bought over many, many of the newer Sea Rays that are out there. But I doubt I would ever convince many of them of that fact.