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  1. #1

    Unhappy Glendenning Syncs.

    I was told that once I reach my desired speed I should then activate the Glendenning Syncronizer, and that starting off from idle with the syncs activated causes stress to the system soloids (or something). Can anyone shed some light on this please?

    Bill

  2. #2

    Re: Glendenning Syncs.

    i have the manual (marked 1982), it says that it can be operated from idle thru the normal cruising speed range.

    under operations it says...

    advance speed slightly above idle, switch on, move slave engine lever to maximum speed position which eliminate undue strain in moving the entire control system.

    guess i should have read the manual.. never done that before.
    Pascal
    Miami, FL
    1970 53 MY #325 Cummins 6CTAs
    2014 26' gaff rigged sloop
    2007 Sandbarhopper 13
    12' Westphal Cat boat

  3. Re: Glendenning Syncs.

    You can do either, BUT you are overloading the master engine SEVERELY if you use it to come up on plane quickly.

    That is, the time it requires to advance the throttle of the slave engine is significant.

    You won't hurt the sync, but you might hurt the engine.

  4. #4

    Re: Glendenning Syncs.

    Really? I doubt that overloading an engine for the 30-60 seconds it takes for the other one to catch up would have any effect at all. If you think about industrial/commercial applications, diesels are momentarily overloaded everyday. There is the truck driver who has to downshift while pulling up a steep grade, the front-end loader pushing into the pile to fill the bucket, or the rock crusher that has too much material fall into it before the operator slows the feed rate down. All of those scenarios last longer than the time it takes for the Glendenning to catch up.

    Our mechanics used to say that a boat is the best application for a diesel-- It gets clean air, it has constant load, and you always get a warm up and a cool down period (going into and out of port).
    Sky Cheney
    1985 53EDMY, Hull #CN759, "Rebecca"
    ELYC on White Lake--Montague, MI

  5. Re: Glendenning Syncs.

    Well, you can run yours however you want, but I don't slam throttles around - figuratively or otherwise - except in emergencies.

    The way I see it, there's no reason to. Bring 'em up slowly, let the turbos spool up before you ask for real power, you get no black smoke, no burbling and no complaints - and no excessive stress.

    I just don't see the value in doing the glendinning thing coming out of the hole. Why? Just bring up both levers and then once you're on plane turn it on.

    Works for me but YMMV.

  6. #6

    Re: Glendenning Syncs.

    I agree in not "slamming" the throttles. My point is that if you leave the Glendening on and advance the one lever at a gradual rate as you would with the two levers, you will not be overloading the slave enough to cause any damage. The sychronizer can be used at any RPM and if used "responsibly", you will not have any problems. In fact, when you advance without the sync on you are not moving both engines faster at the same identical RPM either. You invariably will have one lagging engine until you are reach your desired cruise.
    Last edited by SKYCHENEY; 01-23-2006 at 05:26 PM.
    Sky Cheney
    1985 53EDMY, Hull #CN759, "Rebecca"
    ELYC on White Lake--Montague, MI

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