Why no diesel synchronizers?

[STeveZ]

I ran a B28 Moppie w/ twin Mercs that had a Guest synchronizer, but I have never heard of synchronizers for a pair of diesel engines.

Is it because synchronizers get their reading off the distributor on a gas boat?

That also got me wondering if and how the tachometer on diesel engine differs from a gas engine.

[In Memory of Vicroy]

Well, the short answer is diesels don't have an ignition system. Diesel syncronizers work off a cable drive, like the Glendenning. Diesel tachs work in one of 3 ways: (1) a cable drive like the speedo on your car, (2) alternator pickup, where the tach counts the a/c voltage output frequency - not very reliable, and (3) a magnetic pickup where a sensor that screws into the bell housing counts the number of flywhell teeth that pass under it in a given amount of time.

On the other hand, unless you are deaf, you can syncro a pair of diesels with your ear better than any mechanical device. Right Mikey?

UV

[Mikey]

YEa, UV, especially when one tach don't do nuffin and the capt yells.
When the pressure's on we rise to the occassion.
The B46 I piloted had a pair of Detroits that were much easier to synchonise by ear than mechanically.
Like Vic says, "Just listen."

[Ironman]

Ive got a Glendenning ,I decided to not use.Call me 949 642 0687
You got it for a donation to the site. & $100.00.
Wayne

[ed c.]

i used them on a pair of 3208 cats i had in a 35 bert. i liked them.

[STeveZ]

Thanks for the offer Ironman. I'm not interested by maybe one of the other guys is.

[Hal]

One of my tachs has died on the 35. Is this one tack or two you've got?