The motor stalled when running. It would make a single clunk sound when trying to restart. The 1st pic shows a damaged rotary valve. The 2nd shows the pto cylinder with a small piece missing by the 3oclock area. I cant turn by hand. Do i have something in the motor??? I didnt see anything in there.
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engine will not turn...please see pics
- Thread starter gcha1727
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BMANN06
Well-Known Member
Somethings gotta be in there...
If both your pistons are in decent shape pull your exhaust Rave valves, you may find a chunk of the rave valve missing and it may have made its way to the intake damaging your rotary valve. You'll likely have to split your crankcase to free up whatever piece of debris is locking up the crank. May be easier/cheaper/less headaches to order up a reman... that intake is going to take a lot of maching to clean up.
If both your pistons are in decent shape pull your exhaust Rave valves, you may find a chunk of the rave valve missing and it may have made its way to the intake damaging your rotary valve. You'll likely have to split your crankcase to free up whatever piece of debris is locking up the crank. May be easier/cheaper/less headaches to order up a reman... that intake is going to take a lot of maching to clean up.
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BMANN06
Well-Known Member
Split er' open see what the problem is...
I had this problem earlier this year (which is why i responded to your post). To be honest with you .... your need a remanufactured engine. There is no way the engine will operate properly even if you free up the crank and put a new rotary plate in. But before you get on the phone with SBT I would pull the motor split the crankcase so you know what the cause is. It doesn't look to me like the little piece of piston would have caused this damage, since the pistons and rave valves are intact its either something that broke apart in the crankcase that made it to the intake or somehow a piece of debris made it through the carbs and into the intake. Either way you need to pull the motor and open it to see whats going on. Then get a rebuilt on the way ...
I know it sucks ass ... i've been there!
I had this problem earlier this year (which is why i responded to your post). To be honest with you .... your need a remanufactured engine. There is no way the engine will operate properly even if you free up the crank and put a new rotary plate in. But before you get on the phone with SBT I would pull the motor split the crankcase so you know what the cause is. It doesn't look to me like the little piece of piston would have caused this damage, since the pistons and rave valves are intact its either something that broke apart in the crankcase that made it to the intake or somehow a piece of debris made it through the carbs and into the intake. Either way you need to pull the motor and open it to see whats going on. Then get a rebuilt on the way ...
I know it sucks ass ... i've been there!
The RV is damaged by something - I wanted to say the same thing, air cover screw or carb screw fell in there - that is why they are so long so they can not vibrate all the way out without hitting the flame screen. The 100 on the piston tells me it already bored to max - common for sbt, another may be the best way.
On both ends you need a lot of pressure to get things loosened, be careful when removing the flywheel not to damage the holes and then the outer disk will seperate, the PTO could also be tight, remember these had thread sealer applied when installed and you need to do the same thing.
Ridethetide
New Member
I too now have a sea doo with the same problem. I went to start it over the weekend and all I get is a clunk. It sounds like something has seized or is binding. No turn over. To make things worse, I went to start my other one, and it would turn over, but not start. I changed the plugs and still does not start. I am going to check the spark plug cables. If nothing, then what. Man I hate this. Although I have been lucky. This is the first real problems in 10 years.
Well here's my 2 cents. This exact same thing happened to me last summer. I have a 98 sporster 1800. Look here to see the pics of damaged RV etc.......http://www.seadooforum.com/showthread.php?t=21275. Turns out I had lost my wrist pin bearings and they made their way into the rotary valve and had been banking up my cylinder/pistons pretty good. Ended up putting a reman from SBT. Wasn't too hard other than trying to get the fly wheel off. Works like new now though. Good luck
atriot:
atriot:roneagan@cfl.rr.com
New Member
Wrist pin Bearings
I had the same problem last year with one of my skis, the wrist pin bearings which are little roller type came apart and made a real mess. Rotary valve looked just like yours. I retired the ski and use it for parts! Time for a new motor!
I had the same problem last year with one of my skis, the wrist pin bearings which are little roller type came apart and made a real mess. Rotary valve looked just like yours. I retired the ski and use it for parts! Time for a new motor!
BMANN06
Well-Known Member
Guess what happend to my starboard side motor this past weekend!
Yup she seized up! Feels like a bearing has seized up, no debris that i've found yet. But that's two motors this yearuke: Although these motors are banging on 12 years old and are basically just screaming pistons. I had a feelng the other one was going to go I was just hoping to get the summer out of er'
Yup she seized up! Feels like a bearing has seized up, no debris that i've found yet. But that's two motors this year
uke: Although these motors are banging on 12 years old and are basically just screaming pistons. I had a feelng the other one was going to go I was just hoping to get the summer out of er'- Status
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