Boats For Sale:
40 to 80 series transmission coversion |
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Slalom fan 4 
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Joined: May-09-2020 Location: Idaho Status: Offline Points: 73 |
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 Topic: 40 to 80 series transmission coversionPosted: September-14-2020 at 5:47pm |
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My 93 sport needs transmission replaced. I've read on hear on talked to several mechanics and it its better to replace with 80 series rather than any rebuild scenario. Also heard might be muffler clearance issues with 80 series. Any thoughts? Also hw do I post pics here?
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11155 |
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Posted: September-14-2020 at 7:29pm |
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You might be better off talking to SkiDim since they sell the kits.
They should be able to tell you any differences in dimensions For pictures look at the sticky at the top of the general discussion section on posting pictures  The title is "adding images to your posts"
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Slalom fan 4
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Posted: September-14-2020 at 8:03pm |
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Yep I saw the kits on their site thanks!
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Slalom fan 4
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Posted: September-14-2020 at 8:38pm |
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About this left handed engine I keep seeing in posts, my prop is RH so does that mean my engine is also?
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MrMcD
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Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3764 |
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Posted: September-15-2020 at 1:17am |
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Nope, it is possible your Vdrive or the transmission reverses engine rotation.
Example: My 95 Nautique has a standard rotation engine, the tranny reverses the rotation so I run a reverse rotation prop. You have to know your parts to know exactly what is happening in your boat.
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11155 |
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Posted: September-15-2020 at 8:52am |
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You should be hoping that you have a LH normal automotive rotation engine that was hooked to a 1.23 PCM 40A. That was the setup in most every 93 Sport. Not all though
The 40A reverses propshaft rotation in the reduction section and turns a RH prop. The 80 series PCM transmissions only work with a LH normal automotive rotation engine An 80A will turn a RH prop when hooked to a LH engine. The LH means if you're looking at the engine from the rear, it rotates to the left or counter clockwise. You figured out that picture posting yet?
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Slalom fan 4
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Posted: September-16-2020 at 5:04pm |
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It's LH thanks.
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KENO
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Posted: September-16-2020 at 6:49pm |
At least now you know that an 80A will work behind your engine. As far as muffler interference, it looks like no answers here but I'd figure it would fit or they wouldn't be selling it as a replacement kit. Make that call to SkiDIM
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FFImarine
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Joined: June-21-2016 Location: Medina Status: Offline Points: 145 |
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Posted: October-16-2020 at 11:57am |
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A rebuild is gonna be much more cost effective then going with a new 80 series, we charge $1,400 for a standard pcm 40 rebuild and it comes with a 1 year unlimited hour warranty
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You break it I’ll fix it
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slmskrs
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Joined: January-03-2012 Location: SF bay area, CA Status: Offline Points: 522 |
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Posted: November-13-2020 at 5:47pm |
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I swapped out a 40 with an 80 in my previously '96 SN. No problems whatsoever. Also, the kit includes a new damper plate and a 12" cooler! But $1400 for a rebuild is nice. I decided to just spend the extra grand for the new model, but don't know what I'd do with my current '97 with a 40 if it goes. It's a good chance my old one died due to heat. Never overheated, but a press-fit gear in a bell housing came loose, and when I added up all of the parts (not including my labor), it would have been about $1,400, so it made sense for me to get the 80. Over the 1600 hrs on my '96, the tranny went out twice but never overheated. I figure the colder the better.
First thing I did when I got my current boat (1997 SN) was to replace the 6" stock cooler with the 12". Just changed the tranny fluid over the weekend, and I was actually a bit surprised how warm the fluid was even with the 12", so glad I don't have the 6" anymore.
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Gordon '97 Ski Nautique, GT40
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FFImarine
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Joined: June-21-2016 Location: Medina Status: Offline Points: 145 |
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Posted: November-13-2020 at 6:26pm |
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It never hurts to add length for cooling, what did you do with your old 40series? I wouldn’t mind having it around for extra parts. Let me know
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You break it I’ll fix it
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ScottZ
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Joined: January-20-2004 Location: Clanton, AL Status: Offline Points: 1157 |
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Posted: December-14-2020 at 3:23pm |
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I have a fresh rebuilt 40 series for sale. $1000
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Scott Zuelzke
Lake Mitchell , AL 1984 Ski Nautique 1972 Skier |
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Slalom fan 4
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Posted: December-16-2020 at 10:10pm |
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Still have it. It was working fine just a small leak from front seal but local shop said pump was leaking and I should just replace the whole thing? Is your $1400 for rebuilt or to rebuild mine? Does it come with damper plate?
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slmskrs
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Joined: January-03-2012 Location: SF bay area, CA Status: Offline Points: 522 |
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Posted: December-16-2020 at 10:29pm |
Sorry, just saw this. I recycled everything.
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Gordon '97 Ski Nautique, GT40
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Slalom fan 4 wrote: