99 GTI need to remove water pump assembly, which bolts? WITH PICS

[97SPX]

I need to remove the entire pump assembly from my 99 GTI in order to spin the motor to see if it's the motor that's locked up or the impeller bearings. I see two sets of bolts on the back but I'm not sure which set will allow me to remove the entire assembly and free it from the engine.

Is it these four bolts?

Or these back here?

Any other gotchas to removing this? Will it come out as an assembly or will it leak a bunch of oil?

THanks,

 

[timmyboy76]

yep, and the cable attached to nozzle, along with remove'n the tubes attached to barbs protruding thru hull from pump. Will take little effort though, break'n seal between pump and hull...good luck
Also, dont lose the driveshaft plug/s..

 

[97SPX]

So the bottom picture is the one I need to worry about and the whole thing comes off the hull?

 

[97SPX]

Okay, got the pump removed and now it looks something like this:

So the big stupid question is this: If the pump is off and the motor still won't turn then there is nothing else that could be locked up except the motor itself, right? There are no other bearings on the drive shaft that could be locked up that I can see in the parts manuals.

 

[cut'n ride]

I have no backround on your specific problem... But, did you try taking out your sparkplugs and turning it over by hand? And, yes, if nothing else could hinder the motor's ability to turn but the engine itself at this point.

 

[97SPX]

Yup, tried it without plugs right after it happens. The starter engages but the motor doesn't even try to turn. She is all locked up. Oh well, at least I'm learning stuff as I go. Not sure if I'm brave enough to pull the motor or even it it's worth it at this point. I have less in it than I could probably get for it even with it locked up.

Thanks everyone for the input, love this forum.

 

[seadoosnipe]

Locked up.....?

I don't see where you've posted on what happened that led up to the motor locking up.

Take off the shaft guard at the rear of the engine. Pour a couple cap fulls of PB blaster (get it from a local auto parts store) into the spark plug holes. Let it sit for 15 minutes.

Now, take a pipe wrench and attach it to the back of the shaft or PTO hub. Try rocking the engine shaft back and forth to see if you can free it up. If it begins to turn, turn it counterclockwise. Once it begins to spin over, put a good bit of your 2-cycle oil in the spark plug holes to lubricate the bearings.

IF the engine locked up from sitting, then you may be able to save it. If it is locked from a bad connecting rod, crankshaft of pison, forget it.

You can get a new engine for under a $1000 bucks.

With the condition of the ski, as far as good hull, no rips in seat, if you put $1000 in it to get it working again, you can probably get about 2 or 3K out of it in resale.

 

[97SPX]

Thanks Snipe,

My wife rode it away from the launch and stopped to say it was running rough and that the oil light was on at idle. I told her to give it some gas and see if the light went off. It did so I figured it was just cold natured since we just launched it. With the light off she continued on at speed for a couple more minutes. She stopped again and said it was dead. Would not turn over and that it had made a bad high-pictch noise right before it died. She doesn't THINK the light was on at speed. I'll try your advice this weekend and let you know what happens.

Thanks again,

 

[97SPX]

Okay Mr. Snipe, here's where I am.

I did exactly what you said above and turned the motor counterclockwise one turn by hand. I then turned it with the starter and after an initial lull it began to spin. I put the plugs back in and it felt like it wouldn't spin. Took the plugs back out and it spun freely. Put back plug back in and it spun freely. Put front plug in and it spun a little slower then stopped. I think I"m out of battery, going to charge it and try again. pistons are definitely going up and down and so far it sounds pretty normal. The plot thickens. If I put it back together again and it cranks then my big question will be "what caused this?".

On a separate note, when I picked up the pump to move it the wear ring slid right out. That seems odd.

 

[seadoosnipe]

Posts.......

You have threads on this same issue all over the place. Please choose one thread and stay with it. I am totally confused now as to what thread needs a response.

As for this thread, you need to do a compression test. It sounds like you have no cylinder compression in the PTO cylinder.

You can buy a compression gage at your local auto supply store for about $20 or $25 bucks.........