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How serial #'s relate to 07 Summit problems...

0

07SummitX800R

Well-known member
Just curious who's had crank problems with their 07's, and what the serial # was. Mine is lower than 100, and I'm now really nervous that mine doesn't have the proper clearances. With only 240 miles on my summit, I'm beginning to wonder when (not if) the crank is going to go south...

Thanks,
Ryan
 
07 XRS w/ 151 track ... made on a tuesday #150 so hoping its good! got a 1000km on her with no problems - hoping it either blows it up this winter or thinking its good to go haha
 
XRS 159. Last 3 numbers are 096 made in 10/06. Only have 260 miles on the sled due to bad snow year. Want to put a head on it but don't want to void the warranty if she is gonna blow this season. Somebody out there knows which lot numbers are bad. How about a little input here, Thanks
 
Hi guys, my last three numbers where 097 1 more than you Sierra and I blew my up at about 350 miles. The reason I feel it finally blew is that the day I was riding was very wet heavy snow and the ride out was about 15 miles which I rode hard and at about 1 mile from the truck she blew. I think that because I rode it so hard out it allowed enough heat to build and burn it up. At no time did the engine light come on, but when I shut it down the engine was way hotter then I had ever felt it. Hope this helps.
 
my last three #'s are 705 and was manufactured 10/06. i bought it this year brand new and have 68 miles on it. it seems to run real strong but time will tell i guess.
 
Makes me sick to think that I'm just going to have to wait until who knows when, and even worse... Who knows where before my engine blows...

Makes me wish I'd bought something different....
 
vibration at low rpm can be attributed to poor spring tower fit .dealers have to be cautious when installing the new up dated ones as well as you need to check there fit as well . to excessive a clearance and you get the low rpm shake and eventually a rattle . poor roller bushing wear as well.

crank issue is a snow condition scenario were in if you have tons of loose snow you get exceptional cooling in the block .
remmember this is a lower cooled case motor so theoretically you could cold seize the mains .
tighter snow conditions raise the block temps enough that the main issue isnt an issue as the outter race on the mains will have expanded enough .

dealer recommendations on oils used ie mineral versus synthetic
mineral concept was to allow some wear in on main bearings . synthetics wouldnt allow this so they were hoping in the [loose snow condition] that they could get by with the mineral idea on wear in .
tighter snow no issue really once it was broke in [apx 350 miles ] mineral oil got a quicker break in on the top end versus synthetic .synthetic guys and gals , they wait a few tanks longer for the rings to seat .

08 motor s have 10 micron greater clearance on the mains and the cooling system has a thermostate to even out the wandering block temps .

dont be scared just be informed .
 
XRS 159, Serial #437 manufactured in 10/06 (if i remember right on the date). I Broke it in cautiously, rode harder later last year after i made it passed the 400 mile mark. Lost bottom end bearing on friday at about 597 miles, i was on the trail, running scratchers with consistent snow on trail all the way....made it 15 miles before it piled up.....sounded like it was piling up behind the recoil (metal on metal bearing sounds, reminded me of a seizing wheel bearing). I was a long time skidoo fan, but this type of failure has never happened to me before....i'm thinking twice about continuing with them....thank god it happened on the trail and not 45 km's into the back country, or it would have beeen a chopper for sure. Anyone know if my new engine will be warranteed for another two years from install date?
 
they have been replacing them with 08 motors . ask your dealer if a t stat is a possability . stock head only needs to be machined to accept the 06 t stat
and then ya pretty much have the issue solved .
if no t stat go for a water temp guage ,then youwill know if it is running in an acceptable window . 80f and up your ok , below 80 to 70 is the danger zone
 
Ser # is 127, don't know when it was made. Got almost 1000 miles on it and runs great, especially after going to a lower gear. I think if you talk to other sled owners of different brands, they all seem to have an implosion at one time or another. A friend of mine had his M1000 out last spring, brand new, motor seized with about 350 miles on it! Just make sure it blows when on warranty! Sherm
 
vibration at low rpm can be attributed to poor spring tower fit .dealers have to be cautious when installing the new up dated ones as well as you need to check there fit as well . to excessive a clearance and you get the low rpm shake and eventually a rattle . poor roller bushing wear as well.

crank issue is a snow condition scenario were in if you have tons of loose snow you get exceptional cooling in the block .
remmember this is a lower cooled case motor so theoretically you could cold seize the mains .
tighter snow conditions raise the block temps enough that the main issue isnt an issue as the outter race on the mains will have expanded enough .

dealer recommendations on oils used ie mineral versus synthetic
mineral concept was to allow some wear in on main bearings . synthetics wouldnt allow this so they were hoping in the [loose snow condition] that they could get by with the mineral idea on wear in .
tighter snow no issue really once it was broke in [apx 350 miles ] mineral oil got a quicker break in on the top end versus synthetic .synthetic guys and gals , they wait a few tanks longer for the rings to seat .

08 motor s have 10 micron greater clearance on the mains and the cooling system has a thermostate to even out the wandering block temps .

dont be scared just be informed .


funny you say that ...my dealer said to run synthetic ONLY and that out of 150 sleds they saw ZERO back? Lies? Who knows
 
I traded my 07 (144 track Adrenaline #466) because the risk was there and it was a backup sled to my new XP and I was thinking it would be 2010 before it had enough miles to seize. I talked to the rep about that at the snow show and he said he thought Doo would stand behind it even after extended warrentee if it was obvious it was the bearing/clearance/heat defect. No...I did not get it in writing! But there is grace there it seems. I would leave it stock and just run up the miles as fast as you can.

I asked dealer Saturday about a thermostat...couldn't doo it. Also said he asked Al about serial #'s and it was all over the place...no rhyme or reason.

I could have kept it and let the XP go...but I am way to addicted to lightweight, lots of horse, deep powder and sunshine. XP won. Wallet lost. Sigh. Is there a 12 step?

When you mention your serial # put your track in the notes because there are duplicate last 4 digits for each track length. Goose
 
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vibration at low rpm can be attributed to poor spring tower fit .dealers have to be cautious when installing the new up dated ones as well as you need to check there fit as well . to excessive a clearance and you get the low rpm shake and eventually a rattle . poor roller bushing wear as well.

crank issue is a snow condition scenario were in if you have tons of loose snow you get exceptional cooling in the block .
remmember this is a lower cooled case motor so theoretically you could cold seize the mains .
tighter snow conditions raise the block temps enough that the main issue isnt an issue as the outter race on the mains will have expanded enough .

dealer recommendations on oils used ie mineral versus synthetic
mineral concept was to allow some wear in on main bearings . synthetics wouldnt allow this so they were hoping in the [loose snow condition] that they could get by with the mineral idea on wear in .
tighter snow no issue really once it was broke in [apx 350 miles ] mineral oil got a quicker break in on the top end versus synthetic .synthetic guys and gals , they wait a few tanks longer for the rings to seat .

08 motor s have 10 micron greater clearance on the mains and the cooling system has a thermostate to even out the wandering block temps .

dont be scared just be informed .

it's interesting you bring up the vibration issue. my 07 is new and have put almost 70 miles on it. it had the latest update installed when i picked it up. the low rpm vibration is excessive imo when compared to the other sleds i've owned. it feels like a kawasaki tecate three wheeler from 1986. opening the clutch side panel and watching air box shake like that makes me wonder! i'm going to pull the clutch and check the fit of parts.
 
my serial number is #393 manufacture date 10/06 and is a 151". No engine problems in 800 miles but the clutch is another story. After the last fix my primary imploded and they put a new one on. One ride since new primary and seems to be fine although I don't really want to say its fixed until I'm in 5' of pow going straight up and see 8250 rpm without a incinerator for a clutch
 
they have been replacing them with 08 motors . ask your dealer if a t stat is a possability . stock head only needs to be machined to accept the 06 t stat
and then ya pretty much have the issue solved .
if no t stat go for a water temp guage ,then youwill know if it is running in an acceptable window . 80f and up your ok , below 80 to 70 is the danger zone

Could you give a little more info on this temperature range theory?
 
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