Transmission issue, please help!

[ral]

We have an issue with our 2015 Nautique 200, PCM 5.7 engine. Out of the blue, reverse does not engage. Forward works well. As there was a low oil level, we filled with fluid, but the problem persists.

Any ideas or hints? I was told that there are no parts available for this transmission, so anything major would mean a transmission replacement.

 

Thanks!

[Kelvin]

Same thing happened to my 2010 with the 40A transmission a couple of years ago.  Ended up replacing it with the newer 80A transmission.

Spoiler

 

 

[ral]

9 minutes ago, Kelvin said:

Same thing happened to my 2010 with the 40A transmission a couple of years ago.  Ended up replacing it with the newer 80A transmission.

Not the reply I was hoping for... But I guess there is a strong possibility of it being the case.

[RichardDoane]

cable shift, or electric solenoids ?

[Jody_Seal]

yea bite the bullet and get a new series 80 123:1  for your boats engine application. I recommend skidim or nautiqueparts.com for your conversion. it can be a puzzle as their are really no good instructions as these kits are equipped to cover a wide range of either ford or Chevrolet application. disregard if you have a livorsi all electric throttle control.  and yes the 80 can be rebuilt. however if it is Indeed electric shift be reminded a lot of those control's  have been updated/ replaced to date.

Edited December 3, 2023 by Jody_Seal

[ral]

Got now the bad news from the mechanic, the transmission is dead. We will need a new one.

@Jody_Seal, they do sell spare parts for the 80?

[rawly]

Sure hope you have other boats to use on that new lake of yours. 

[Jody_Seal]

5 hours ago, ral said:

Got now the bad news from the mechanic, the transmission is dead. We will need a new one.

@Jody_Seal, they do sell spare parts for the 80?

yes.. the 80 can be rebuilt. call Monday will get you squared away for more info.

 

[ral]

@Jody_Seal, we got the new kit. 
 

How long should a competent technician take to do the conversion/installation?

Thanks!

[jpwhit]

One of the other members of our ski club and myself did ours one evening after work. We're both pretty experienced with this kind of work. 

[LeonL]

So, conversion from a 40 series to an 80 is more than unbolt and rebolt? A conversion kit is required?

[jpwhit]

It's 80% unbolt and re-bolt.

The kit includes a different much larger transmission cooler. So that has to be fitted and requires some reworking of the raw water plumbing and mounting brackets due to the significantly larger size. It's about twice the size of the typical cooler that came from the factory with most 40 series installs. I don't know that the larger cooler is absolutely required with the 80 series, but I'm sure it's a good idea and will extend the life of the new transmission. 

Unless you're doing the electronic shifting version, the routing of the shift cable is fairly different than the 40 series. We had to reroute the shift cable to go under the engine with the 80 series. The original routing with the 40 series was over the engine. 

The kit also includes a new damper plate. Which is always a good idea to change when you're changing the transmission. But it's a fairly differently designed damper. So mounts to the flywheel a little differently. Not really a big deal but did cause a bit of confusion. I honestly can't remember why now.

And then of course you have to re-align the engine / trans / driveshaft