Here should be an easy one

[TRDon]

I just got back from the lake after being towed in (I said this boat is cursed before, still stands) My boat was smelling a little bit (like hot) and the temp got to 175 and I shut it down. I waited for it to get to 150 ish and I had to get away from shore and it got to 190. Decided to paddle in and I got lucky because I got towed in.

Long story short, I have no blades on my impeller anymore, I back flushed it and got a good majority of them out. All good. I took the impeller housing out of the boat and in my haste, I didnt check the orientation of pump. I am pretty sure the little screw that is on the side of the pump should be oriented downward like a drain. I just want confirmation on this please. I would be able to figure it out if I knew the rotaion of the motor but I really dont.

[Nautiquehunter]

Does it look like this?

[DanielC]

It should be easy, but without telling us what motor your boat has, it becomes much more difficult.

[WakeSlayer]

I went back through some posts and could not find it either. My guess is a LH EX330. Spins RH at the prop.

[DavidF]

"PL" engines: Cam screw of water pump points toward block

"PR" engines: Cam screw of water pump points away from block

[DanielC]

We still need to know if it is a GM engine, or a Ford engine.

[WakeSlayer]

I doubt he has a 5.0, and he doesn't have a Python, which, according to the 2003 manual, leaves the EX330, which is a Chevy motor, no ?

[geoffc210]

Just mark the belt pulley with chalk and bump the ignition. You don't have to turn the engine over much at all to get it to move just a bit and figure out what direction it turns.

[TRDon]

Excal is what I have got. No ford engines were put in the nautiques after 02 to my knoledge.

My pump does not look like the one pictured.

Another bit of good news for the already enormous money pit I have. Apparently after looking at the recall that was given to me by my local dealer, my water pump housing is one of the ones affected by the recall of 02-03 excal motors. I had high hopes because my boat was built in april (late in the model year) Now he is being gracious enough to try to work something out with PCM to cover the cost of parts even though I dont have warranty.

Anyone want to buy a really mint SANTE? Now I know why it doent have any hours on it, because they all came from the dealer troubleshooting it on a fake a lake. UUUUUUGGGGGHHHHHHHHHHH

Maybe I should just buy the leftover 09 210 he has and just light this one on fire.

[TRDon]

I answerd all the questions asked about this motor amnd pump and am still looking for an answer. I am planning on puting the RWP back in tomorrow and use it if I dont have a new one by late next week. My season is short enough, I dont want to be down a week. I havent had any problems with priming other than the obvious lack of blades on the impeller.

That being said, what is the propper orientaion?

[TRDon]

After looking at it again, with a clockwise crankshaft rotation, I am almost positive that the screw in the side of the water pump should be facing downward. I do not have a "top" orientation engraved in my water pump like in some of the newer ones. If you have a 2002 or 2003 nautique with an excalibur motor, I would greatly appreciate if you would look for me and let me know if the screw on the side is facing up or facing down towards the bilge.

[DanielC]

You should be able to figure this out by looking carefully at your raw water pump, when it is apart. The side of the pump that "squishes" the impeller blades to most is the side the water does not go through. The water goes around the long way through the pump.

This is a post I made about a flushing adapter I made:
http://planetnautique.com/vb3/showth...ushing+adapter

Use the adapter to look for leaks in the raw water system. There is a lot of hose and connections on V-drive boats between the raw water pump, and the through hull water intake.

You have probably heard there is a recall on the raw water pump on some of the early Excalibur engines. The problem with it is the pump loses its prime, and then it does not pump any water, and then the impeller gets destroyed.

[TRDon]

That is a pretty good idea for the adaptor. I have a piece of hose that I just stick in a bucket of water being filled by a hose. I have a leak somewhere on my boat to so I do that to check for a leak anyway. Nothing too major, but enough to bug me.

You suggestion is valid if I can for sure know that the crankshaft if absolutely clockwise rotaion. I understand that the water takes the long way around the pump, but that is only functional infomation if I know positively what direction the crakn roation. Different rotaion will vary the orientation. I did try to bump it after marking it last night and all I could get it to move was almost 1/2 rotations. I cant tell with that. The compression it was building either kicked it back to where I started or 1/2 way around, I didnt get it to go in between.

[WakeSlayer]

Don, Your engine, when viewed from the rear (front of engine compartment) should spin counter-clockwise (LH).

[TRDon]

Don, Your engine, when viewed from the rear (front of engine compartment) should spin counter-clockwise (LH).

Good to know, I will orient the screw downward then. I will also be trying it in the driveway and I will be able to tell right away if it is sucking water or not too.

I am hoping for the best in the warranty issue. The less I have to spend on this thing the better at this point. I should know something tomorrow. I will end up getting the updated pump anyway I think. It will give me piece of mind at least.