89 nautique 351 and pcm 40

I will have to let others who know that year boat answer. I thought they all got the 1.23 to 1 by then,but maybe yours is the decontented model The 1.23 has the output shaft at a 9 degree down angle so that the engine sits level in the boat and it uses a left hand rotation engine and turns the propshaft right. If yours is a 1:1, the prop spins the same direction as the engine- usually a righty in Correct Crafts

Wenzingerm wrote: I haven’t heard to many good things about the pcm trans. What other models of transmissions would work on a 89 351? This is a right hand engine correct?

Supposed to be a standard left rotation engine,the trans changes the direction to a right hand prop. I don't think they are any worse than any other trans,parts are just more expensive. The 40 has been updated to the 80A.Skidim has them for 2,212 for the whole new kit- link4th one down. they do offer a discount too.

KENO wrote: Probably a good plan as far as pulling it. Shierh may have rebuilt his Borg Warner but that not spelled PCM. They're a little different animal. Like he said, I'd get in touch with Fantastic Finishes

I’m just about to work on pulling the trans out. I’ll forsure get in touch with the place that rebuilt it. I haven’t heard to many good things about the pcm trans. What other models of transmissions would work on a 89 351? This is a right hand engine correct?

I rebuilt my 71 series myself.   Pretty good understanding how it works.   Simply a high pressure oil pump and the valve directs pressurized fluid to the large reverse piston or the forward one.   If the pump is warn I suspect it would result in lower pressure.   Not clear how it would work in reverse and not in forward.   Also not clear how the rear seal on the transmission would be pushing out as a result of lower oil pressure unless it is not getting lubricated and burning out but suspect it would show signs of this.   

Yes it believe it has to come off but first I would contact the guy who built is and ask him.   Also is there any type of warranty?   suspect it would have been 90 days or up to a year so likely it is out but doesn't hurt to ask.     Reputable guy may not charge if it was defective if you bring it to him out of the boat.   

Did you have slipping or any loud groaning noises as forward was going away?

8122pbrainard wrote: Matt, From your description, it sounds like you're going to have to open up the trans to find out exactly what happened. The input seal pushing out is typical of a worn pump. How many hours are on the trans? You mention the fluid level was correct but was the color good and did it small burnt at all? Welcome to CCfan.

I got paperwork from the previous owner showing a trans rebuild in May of 2016 so I would not think to many hours are on the rebuilt trans. Boat and motor are right at 600. Rebuilt at Fantastic Finishes in Medina Ohio. Have heard pretty good things about them. Trans fluid seemed a good color and didn’t smell burnt at all. How do you tell if the pump is good or not? Seemed to circulate oil through the trans cooler well.

Wenzingerm wrote: I just bout this ski nautique and I took it out to the river yesterday to test it out. Ran well for about 40 minutes and then I noticed the seal on the input shaft started to push out alittle bit.

How'd you notice this since you can't see it?

Do you mean that you started seeing fluid leakage from the bottom of the bell housing?

You say you lost forward only and reverse works, so your pump is functioning if that's the case

Is the shaft slowly spinning in neutral, like slow enough you could stop the spinning with a 2X4 against the shaft or is it moving at the same speed as the engine.

Matt,
From your description, it sounds like you're going to have to open up the trans to find out exactly what happened. The input seal pushing out is typical of a worn pump. How many hours are on the trans? You mention the fluid level was correct but was the color good and did it small burnt at all?

Welcome to CCfan.