Upgrading Yanmar / Morse/Teleflex engine controls - SailNet Community
 
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post #1 of 7 Old 09-13-2013 Thread Starter
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Upgrading Yanmar / Morse/Teleflex engine controls

I am planning on replacing the original Morse single lever control that was installed with my Yanmar 3GMD in 1985. The new control will be the Teleflex 2100 CH side mount typical in newer sail boats. My question relates to the hardware I need to add to connect new cables to throttle and transmission. The new 2100 comes with threaded connectors with 10-32nd threading. New 3300 cables come with 10-32 threaded ends. The Yanmar manual says they used M5 threads on the original Morse controls, so I expect that I cannot re-use the connectors now at the engine transmission end of the cables, nor re-use the old cables with the new control. Anyone hapen to know what conectors to use for the transmission connection? I don't see anything pictured that looks like the original Yanmar barrel shaped connector. The throttle connector looks like an easy choice. Thanks

Mike sullivan
1985 Marshall 22 catboat
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post #2 of 7 Old 12-28-2014
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Re: Upgrading Yanmar / Morse/Teleflex engine controls

I'm planning something similar; did you ever figure it out?
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post #3 of 7 Old 01-20-2015 Thread Starter
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Re: Upgrading Yanmar / Morse/Teleflex engine controls

Hi Pendragon,

No, I never got further, and had no responses to the question of which connectors were needed. The immediate issue I had at the time (sticking in forward gear and needing a hard jerk to pull it back to neutral after running a while) turned out to be a simple case of dirty transmission oil that had been in there for 25 years, not wear of the Morse unit. I do have a plan of pulling the whole system - single lever control and both cables with engine connectors this winter while laid up. Taking it to a local Yanmar servicing shop should get me the correct fittings with no real bother, as well as the correct lengths of cable. Hopefully I will get to this before April, 2015, since I already bought the Teleflex unit and would like to get it installed. Side note: I expect that the Teleflex 2100 will be adjustable for friction on the throttle cable and thus will allow me to set the speed and it will stay put. My current single lever allows throttle to slowly slip back toward idle even with a makeshift restrictor added to the cable. I have read that these 3GMD's had a high force return spring that causes this on a lot of them.

I will post details when I get it one.

Mike sullivan
1985 Marshall 22 catboat
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post #4 of 7 Old 01-22-2015
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Re: Upgrading Yanmar / Morse/Teleflex engine controls

Control cables for the Teleflex CH2100P single lever engine control are the 33C/3300 universal model. An online search will find them at various sources or a local marine chandlery can find them for you and order them for you.

Regarding the tendency of your engine control to slip toward idle while in operation, a simple engine control cable brake will solve that. They cost 6-8 bucks and are easily installed.

The web makes everywhere the same place. - Fred Reed, from "Fred on Everything"
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Re: Upgrading Yanmar / Morse/Teleflex engine controls

[QUOTE=fryewe;2519041]Control cables for the Teleflex CH2100P single lever engine control are the 33C/3300 universal model. An online search will find them at various sources or a local marine chandlery can find them for you and order them for you.

Thanks for the input. My real question has been a simple one - does anyone know the specific fittings I need to buy to connect new cables to the 3GMD throttle and transmission controls at the engine end. The old ones are apparently m5 threads and thus need to be replaced to match the threads on the new cables. It will be easy enough to taker the old cables to the local Yanmar shop once I pull everything in prep for cutting new hole for new Teleflex, but even easier if I could just order the right stuff online.

I did buy an engine brake last summer but deferred installation until I had the new cables. At same time, some write-ups of the Teleflex 2100 say it has a tension adjustment already integrated so I thought I would see how that works. In the past, I have used a small wire clamp to add friction to the old throttle cable, but that makes throttle movement pretty stiff by the time it is tight enough to hold throttle settings. The "brake" applies the load over a much wider area of the cable and would hopefully allow a smoother action if the 2100 doesn't do it alone.

Mike sullivan
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post #6 of 7 Old 01-22-2015
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Re: Upgrading Yanmar / Morse/Teleflex engine controls

Not sure I understand your arrangement but offer this:

-when I replaced my two handle control for my Yanmar 2QM15 with a CH2100P, I bought new 3300 cables. The cable ends at the engine end for both throttle and shift lever simply went through holes, which werent threaded. The nuts provided for the cable ends were simply adjusted to set the cable lengths. My tech manual described how to take measurements to set the shift lever for the correct throw.i don't recall the details of throttle cable adjustment but I do remember that I set the throttle for 900RPM idle with the handle vertical in neutral. I don't remember having to make any other adjustments.

If you are missing cable end nuts, a source like McMaster-Carr can provide them

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post #7 of 7 Old 01-23-2015 Thread Starter
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Re: Upgrading Yanmar / Morse/Teleflex engine controls

Thanks, again. My original throttle connector is a little more complex. It involves a spring damping function that appears to absorb some of the movement between cable itself and engine. That was a stock Yanmar part per my manual, but doesn't look much like what I have found in online catalogues. If it is not something others recognize readily, I will just take it to the shop to match. If I learn something useful, I will post it back here.

Mike sullivan
1985 Marshall 22 catboat
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