Adjusting throttle cable

John Langford · October 09, 2018, 08:00:14 PM

I used to be able to reach 2900 rpm, but recently the throttle control on my 1999 Mk II M35B is hitting the binnacle stainless steel support tube at about 2500rpm. It feels like there is slack in the cable as I push it forward. The cable is as tight as it can get at the engine end. Before opening up the binnacle, I would like to know if it is possible to adjust the throttle cable tension at that end. Does anyone knowing that is the case and, if so, how the adjustment is made?

KWKloeber · October 09, 2018, 08:29:38 PM

Adjust it at the engine end. A customer had to fabricate a new bracket (extension) so he could relocate the cable clamp on the transmission shift cable - might need to do the same on the speed cable.
Or you may need to replace it.

scgunner · October 10, 2018, 09:35:40 AM

John,

Why not advance the throttle control full forward then on the motor side of the cable disconnect it from the throttle lever, if you can still advance the throttle lever it indicates the cable is in need of adjustment.

John Langford · October 10, 2018, 11:28:18 AM

Thanks both. I have adjusted the threaded fitting at the engine end until it was impossible to shorten the cable any further. When I hit the helm throttle control hits the binnacle tube, the throttle can still be advanced further. If no further adjustment is possible at the helm, it might be possible to move the cable clamp aft by drilling new holes in the plate on the engine to which the cable clamp is fastened. I am assuming that aft is the direction I need to go to allow the Morris control to access the extra throttle 'room'.

KWKloeber · October 10, 2018, 11:56:22 AM

Quote from: KWKloeber on October 09, 2018, 08:29:38 PM

A customer had to fabricate a new bracket (extension) so he could relocate the cable clamp on the transmission shift cable - might need to do the same on the speed cable.

I don't have a pic but he made it out of alum angle so it had enuf stiffness. Even drilling a new hole on the exist bracket didn't provide the correct position.
Or a new cable isn't a bank breaker.

John Langford · October 15, 2018, 10:28:32 PM

Fixed the problem by disconnecting the throttle lever from the forked fitting at the binnacle end of the throttle cable, unscrewing the forked fitting from the end of the cable, drilling two holes about 1/2" further down the fork for the clevis pin and reattaching the fitting to the throttle lever on the binnacle. This had the effective of shortening the cable and thus allowing the throttle control to provide the full power of the engine if required. More details available if anyone is interested. Thanks to all for suggestions.

Now back to the problem of my tempermental alarm switch...

Anil Tewari · October 12, 2020, 06:48:51 PM

Quote from: John Langford on October 15, 2018, 10:28:32 PM
Fixed the problem by disconnecting the throttle lever from the forked fitting at the binnacle end of the throttle cable, unscrewing the forked fitting from the end of the cable, drilling two holes about 1/2" further down the fork for the clevis pin and reattaching the fitting to the throttle lever on the binnacle. This had the effective of shortening the cable and thus allowing the throttle control to provide the full power of the engine if required. More details available if anyone is interested. Thanks to all for suggestions.

Now back to the problem of my temperamental alarm switch...

Thank you John for this fix. We just acquired a 2001 C34 mk II with the same issue of our throttle lever hitting the support and not allowing us to get much over 2100 RPM or so. I am relatively new to this so was hoping you could share some further details on your fix please? Many thanks in advance!

KWKloeber · October 12, 2020, 09:00:32 PM

Quote from: John Langford on October 15, 2018, 10:28:32 PM

Now back to the problem of my tempermental alarm switch...

JL, what engine does she have -- is the alarm (oil pressure?) intermitttent? Or anemic? etc.?

Jim Hardesty · October 13, 2020, 04:14:29 AM

QuoteNow back to the problem of my tempermental alarm switch...

My alarm problem, week intermittent alarm, was the alarm itself. I pulled the alarm one winter and measured and matched to one with more decibels I found on-line. Easy fix. And only a few bucks.
Jim

Ron Hill · October 13, 2020, 02:56:42 PM

Guys : Radio Shack has a real "12V screamer" beeper !!

A thought

Ron Hill · October 15, 2020, 02:28:46 PM

Guys : Infact, I've taken that same Radio Shack "Pulsing Piezo Buzzer #273-0066" and wired it in to the back-up lights on my autos!!!
Lets every on know when I'm in reverse!

Another thought

Becca · September 20, 2022, 07:14:12 PM

Hi to you all,

I am trying to find a manual for the engine controls on my C34 mk2 which has a single lever control system. Attached is a photo of the controls lever and set up . I am having some problem with it when shifting from fwd to rev wherein it locks up the engine, virtually shuts it down. Don't want to damage the transmission. So hoping to get a manual before I start taking things apart and make things worse.

Any help would be most appreciated. Spring is here in Sydney, Australia and we want to get out on the water.

my name is Dennis Meehan, my daughter Rebecca owns the boat and I get to fix things.

I have contacted Edson and they say this has long ago been discontinued and were not able to help. I note from looking at a lot of C34s that this Single Lever setup is rare.

Many thanks.

Ron Hill · September 21, 2022, 03:08:07 PM

John : On your shifting problem : Insure that the transmission shifting arm has the MAX throw. Check that the adjustment for the shifting cable is in the lower hole on the transmission shifting arm!!

A thought