04-19-2009, 08:43 PM #1
If you blow a piston, do you have to rebuild the ENTIRE motor?
So my ski has 96 hours on it. My mechanic says that I should replace all the pistons, renickel the cylinders, get a new crank, and he says one of my carbs might be bad and probs need to fix that? I guess my question is, would it make sense and is it a bad idea to just renickel the bad cylinder, get a new piston, and keep the crank and everything else?
04-19-2009, 08:45 PM #2
only if your mechanic wants to rip you off!Lee
04-19-2009, 08:46 PM #3
Same with the crank. Just because you blew a piston in my opinion does not mean everything else needs to be replaced.
You may check and have your carbs rebuilt.. see if Osidebill rebuild them for you.
He may have a set you can swap your for those + money who knows.
But no need to replace everything just for that..
replace what needs to be, and fix what is wrong, and proceed.
04-19-2009, 08:50 PM #4
if the cylinder walls aren't damaged then just rehone the cylinder, slap on a new piston and rings and break it in.
04-19-2009, 08:51 PM #5
personally id take pics of the jugs and pistons and post them on here just to get reassurance on them.
make sure you havent been running lean on the other two. if wash is good then fix the one jug and rebuild the carbs.
04-19-2009, 08:59 PM #6
as already suggested take a picture of the tops of the pistons, the cylinder head will be off so this should be easy to do
while you are at it look for damage on the cylinder walls
but I suspect you may need a new mechanic, 3 new cylinders, 3 new pistons and new crank sounds a little greedy to me - the pictures will confirm this
04-19-2009, 09:07 PM #7
whos your mechanic?? if you dont mind me asking
04-19-2009, 09:24 PM #8
Ok thats what I figured, I mean he just said that the weakest part in these motors is the crank and it will fail? but I hear from alot of people on this forum, the opposite, that their pushing more then 200 hrs on these motors. I dont know, I really miss being on the water, so I think i am going to try what you guys are saying.
04-19-2009, 09:25 PM #9
Its kevin at florida keys marine in key largo. Honestly hes a really cool guy and worked on my old jetboat and always said right, But he said these motors only will last 150 hrs, but then I hear so many here pushing more then that so I am just so confused.
04-19-2009, 09:27 PM #10
- Join Date
- Jan 2007
- Milwaukee, Wisconsin, United States
jug removed yet?
post the pics or send um to phill or hydro a long time gpr vet.
I sent mine to Tim Judge last summer.. He diagnosed it right on the head. So with out cutting your finger( like i did) Carefully remove the jug and check the ROD bearing my looking at the color and "jiggling" it.
You don't want any slop or play in that joint / bearing between the rod and the crank. IF you have slop you may well need to have your crank repaired.
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