The "fix" fixed what????????
- Thread starter ajbond
- Start date
M
miller tools
Well-known member
Man that sucks i just put one in mine just for piece of mind. It had 2000 miles on the stock pistons BD turbo hope iam not going to regret that.
I got 700 miles on mine, runs great. Theres a few guys on here have alot more than that and are going strong!
T
theshadowrider
Well-known member
Maybe the damage/stress to your cylinder skirt had already been done before new pistons?
x2..
Have you contacted MTNTK?
Was it a problem with their product or was it a result of damage that had occurred prior to "The Fix" being installed.
How many miles since the install?
Details man! Details
Was it a problem with their product or was it a result of damage that had occurred prior to "The Fix" being installed.
How many miles since the install?
Details man! Details
Oh no, 1 broken fix kit out of the 1000+ they have sold!!!!!!!!!!!!!!!
STOP THE PRESS!!!!!!!
J
Joe57
Member
Yeah no $hit. I'd like to see this handled a little more appropiately.
First off, was this a 2009 mono or a 2010?
The other problem with these motors that must be realized is the fact that the cylinder skirt to case fit is all over the place with these motors. Member 2XM3 was first to discover this. This was a great find.
One of the drawbacks to the Fix Kit, is the fact that there is a reduction in support of the cylinder skirt due to the "lifting of the monoblock" out of the case and the fact that the shim doesn't lend any support to the 08-09 monoblock at all as it appears it is a universal shim to fit all year mono's. So there is less support and nobody can argue this. For this reason, cylinder skirt to case clearance MUST be checked closely.
As for this case, some pics would be nice but I wouldn't be surprised if the cylinder skirt was just starting to crack or actually cracked before the fix kit was installed. I have a monblock sitting on my bench right now that I have taken about 20 pictures of but because it's such a small hairline crack, it doesn't show up in any of my pics. In fact, I didn't even notice it the first time I looked at the thing and part of my daily resposibilities in my profession is to find these kinds of things quickly and 100% of the time.
Do you see a crack in these pics? Even if you don't, I guarantee you there is one.
2009 Monolock with less than 700 miles on a 2010 update.
This was found during a pre-season, fix kit installation.
It begs the question...How long would it have lasted had the crack not been found OR if it had been re-used?
Notice the nicasil delaminating....what's up with that?
This pic is probably the best
Nicasil delamination....
And not the correct way to determine "actual" piston to cylinder clearance but gives you an idea
Last edited:
F
FrankieJames7
Banned
added you on skype
F
FrankieJames7
Banned
i doubt this is "the fix" fault...but thats just me
A
ajbond
Member
I know it is not "The Fix" 's fault. It is polaris's poor engineering. After this thread and talking with pms. It was probalby cracked before hand. Wish this would have been brought to my att. before this. I defenently would not have been of the fence for so long trying to decide to intall the kit or not. In my case it look like the 400 miles was to long. The fix can not repair damage that has been done prior. Was truly happy with the way my sled was running until failure. Will reintall kit in my new rebuild.
You can apply whatever so called "Fix" you want to this sled and you are still at the mercy of all the other design flaws. You want to fix it. Try parting it out. Or put in a 700 carb motor or a Yamaha motor. That should just about fix it. It's just a hopeless endeavor to try and correct this motor. You can do everything in your power and spend thousands and it will still go down. Mine did.
R
rockin rmk
Well-known member
the nicasil is supposed to come off. it is there for break in.
T
theshadowrider
Well-known member
Are you referring to the coating on the stock pistons?
R
rockin rmk
Well-known member
The nicasil coating is on the cylinder walls. it is there for break in. the coating on the pistons is silicone it will wear off after time. gm has been using silicone on their pistons since the 90's when they started using pistons with a short skirt piston. helps with the rattle and helps keep aluminum from flaking off. snowmobilers are just now noticing this. i have replaced hundreds of pistons over the years in gm vehicles
Yeah no $hit. I'd like to see this handled a little more appropiately.
First off, was this a 2009 mono or a 2010?
The other problem with these motors that must be realized is the fact that the cylinder skirt to case fit is all over the place with these motors. Member 2XM3 was first to discover this. This was a great find.
One of the drawbacks to the Fix Kit, is the fact that there is a reduction in support of the cylinder skirt due to the "lifting of the monoblock" out of the case and the fact that the shim doesn't lend any support to the 08-09 monoblock at all as it appears it is a universal shim to fit all year mono's. So there is less support and nobody can argue this. For this reason, cylinder skirt to case clearance MUST be checked closely.
As for this case, some pics would be nice but I wouldn't be surprised if the cylinder skirt was just starting to crack or actually cracked before the fix kit was installed. I have a monblock sitting on my bench right now that I have taken about 20 pictures of but because it's such a small hairline crack, it doesn't show up in any of my pics. In fact, I didn't even notice it the first time I looked at the thing and part of my daily resposibilities in my profession is to find these kinds of things quickly and 100% of the time.
Do you see a crack in these pics? Even if you don't, I guarantee you there is one.
2009 Monolock with less than 700 miles on a 2010 update.
This was found during a pre-season, fix kit installation.
It begs the question...How long would it have lasted had the crack not been found OR if it had been re-used?
Notice the nicasil delaminating....what's up with that?
This pic is probably the best
Nicasil delamination....
And not the correct way to determine "actual" piston to cylinder clearance but gives you an idea
Hey Dave, I noticed a magnet stuck to the plating on my cylinders, thought nicasil was not magnetic, not even sure why I tried.. Cheap plating?? or not nicasil??
M
mike_s
Well-known member
What?! Tell me you're joking, right? So....the nikasil is supposed to come off, exposing the ALUMINUM behind it?
C
chunkysoup
Well-known member
I have honestly never heard this before. I could care less what gm does with their engines but the snowmobile part is a little confusing. From what I understood about Nikasil is it isnt supposed to come off. It is used to help reduce friction and to dissipate heat from the piston. I guess I would like to hear from some of the big engine builders on this forum as to what they think is supposed to happen...
