Well, almost five years later, I finally did this clutch adjustment, following the procedure in the Moyer manual. The actual adjustment was pretty straightforward; no problems there except the contortions required to access the gearbox from the lazarets of a 30 MK I. I turned the adjustment collar only one notch. However it was a bit of a struggle to get everything reassembled. I had to re-tap one of the bolt holes to make its bolt thread. And I had to disconnect the shift cable to get the starboard two bolts aligned through its angle iron and gearbox access plate, then re-connect the shift cable ensuring correct adjustment. But, good news, last night I pushed her throttle wide open with five guys on board, and drove her at 6+ knots under power. I haven’t been able to do that since buying the boat - before, her clutch would slip beyond half-throttle.
Cheers, Randy Stafford S/V Grenadine C&C 30 MK I #79 Ken Caryl, CO > On Sep 3, 2016, at 9:53 AM, Ken Walters via CnC-List <cnc-list@cnc-list.com> > wrote: > > Randy, > Probably a pretty straight forward adjustment in the gear box. Mine did this > when I bought it and a knowledgable A4 mechanic fixed it in about an hour > after unknowledgeable mechanics dorked around for many hours on cables, > props, etc. and many hundreds of dollars. There is definitely help to be had > on the Moyer forums for this exact issue. It is also covered in detail on the > Moyer A4 overhaul manual. > > If you are handy you can fix it yourself in about 30 minutes. You take off > the gearbox cover plate, remove a set screw that holds a clutch ring/collar > thing in place, rotate ring one way or the other one notch, put screw back > in, do not drop screw down inside gearbox, test it out. It may make getting > the engine in or out of gear a bit harder, there is a trade off. There is > also an after market collar with notches closer together to avoid the too > much too little issue. > There are times when you need to know that you have maximum thrust - like > when you are about to ram another boat or dock. To my mind this is a serious > safety issue. A young, strong crewman fended my stern off when this happened > to me while backing out of my slip in high wind. I parked the boat > immediately and called a yard with A4 experience. > If you cannot find the adjustment instructions on the Moyer site, contact me > off list and I will send you a PDF. > Ken > 33-1 '75 A4 > > > > Created on a small keyboard with fat fingers... > > > On Sep 3, 2016, at 11:17 AM, Josh Muckley via CnC-List <cnc-list@cnc-list.com > <mailto:cnc-list@cnc-list.com>> wrote: > >> You may find that the engine is moving independent of the shift cable. With >> older/softer engine mounts the thrust may be moving the engine >> closer/further from the cable. Most cables are attached to the engine so >> this doesn't happen but if the cable of mount is broken or failing it may be >> causing the problem. Get a partner to create the problem while you are >> watching the engine. >> >> It could also be as simple as adjusting the cable. >> >> Josh Muckley >> S/V Sea Hawk >> 1989 C&C 37+ >> Solomons, MD >> >> >> On Sep 3, 2016 10:23 AM, "Randy Stafford via CnC-List" >> <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote: >> Listers- >> >> My Atomic-4 slips out of gear in forward if I open the throttle too much, >> especially under heavy load. It's not really a problem, because I don't need >> that much throttle. But I'm just wondering if this a common and fixable >> issue, or a safety feature, or what. >> >> Cheers, >> Randy >> >> Sent from my iPhone >> >> _______________________________________________ >> >> This list is supported by the generous donations of our members. If you like >> what we do, please help us pay for our costs by donating. All Contributions >> are greatly appreciated! >> _______________________________________________ >> >> This list is supported by the generous donations of our members. If you like >> what we do, please help us pay for our costs by donating. All Contributions >> are greatly appreciated! > _______________________________________________ > > This list is supported by the generous donations of our members. If you like > what we do, please help us pay for our costs by donating. All Contributions > are greatly appreciated!
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