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Have a 2014 G21 with ZR409 with the PCM V-Drive Transmission. After wakeboarding a bit the transmission begins to delay engagement and allows rpm’s to build where it hits hard once it engages. Once this happens it doesn’t do it every time but more frequently. I adjusted the linkage where transmission engages slightly sooner but eventually returns. Not sure where to begin to look. Any ideas or experiences with this. I have had no transmission issues in my boating experience. The fluid looks ok but I really don’t know exactly what it should look like. Level looks good if it can be checked out of the water. Thanks
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What’s the model number of the transmission? It probably has a sticky selector valve that needs to be removed, cleaned, and polished. Should also change the transmission fluid at the same time. Not a good to use it until it’s been fixed. -
Is this what you need to know? I couldn’t see a model number.Comment
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I don't recognize that as a transmission model. Is that on the transmission or on the v-drive gear unit?Comment
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Sorry, I thought what I posted was it. The only reference I’m finding is that it’s a PCM V-Drive Transmission from the manual. Where would I find the model number?Comment
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Oh, I failed to answer your question. What I posted must of been the V-drive. I was thinking the V-drive and the transmission were one unit given its name, V-drive Transmission. Thank you for your patience.Comment
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On Nautique’s, they are separate units. I don’t recall when new boats switched from the PCM 40 to the PCM 80 transmissions, but if you have a 40 series then that model is no longer made, but more importantly parts, other than simple stuff like seals and gaskets, are no longer available. If you have an 80 series all parts are available. In either case, I think you need to find someone to work on it ASAP to have the best chances of saving the existing transmission if it’s a 40 series. Otherwise, you’ll have to incur the cost of upgrading to an 80 series transmission which includes reworking the much larger transmission oil cooler into the system, a new damper plate, and differences in shifter cable routing on top of the cost of the 80 series transmission itself.
If you have a 40 series and think you up for doing the work yourself, then Google for the PCM 40 Series maintenance pdf. I don’t know if on your boat you’ll have to pull the transmission out to get enough access to disassemble the shifting valve assemblies.
if the delayed engagement is causing clutch slippage due to engagement under high power. A 40 series transmission won’t stand up to that more than a couple of times before the clutches are trashed. They build up too much heat in the clutches with any slippage and the clutch plates warp.Comment
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Is the clutch slippage something we would notice? This delay doesn’t happen every time you put the boat in gear so hopefully we don’t have any of the other problems that result from using it in this condition.
I’m where I should be able to look at it all today. I’m hoping it’s something I can tackle so we can get back on the water.
Thanks for the help!Comment
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It appears to be a 30 series.Comment
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That's an 80 Series transmission. So that's good news because parts are available. Don't ask me why what PCM refers to as the 80 series doesn't have an 80 in the model number....Comment
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Any idea where I can find a manual for the 80 series transmission? I’ve not found one.Comment
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Hey Jpwhit, I‘ve been considering doing this myself. In looking at the transmission and what might be involved, there are 2 wires that appear to be to neutral safety switch. The wires are taped together and have been laying on the exhaust and were some what stuck to it. My delay only presents itself when we are loaded and wakeboarding at about the 2 or 3 rd set. Could the exhaust heating up the wires cause it to short? I don’t know what these wires cause to work. Does this sound plausible?Comment
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Those wires prevent you from starting the boat in gear. Which can be very dangerous. The neutral safety switch closes when the transmission is in neutral and allows the boat to start. If the wires are shorted out by the exhaust, then the boat will be able to start with the gear lever in any position. That would not be related to your delayed engagement, but can be a pretty serious safety hazard. Really easy for someone to get run over if the boat will start in gear.
Your delayed engagement issue is very likely related to the temperature of the transmission. Which is affected by how hard the boat has been working.Comment
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