Luckily I was riding next to our cabin when it started to burning it. Anyone else have this happen to them? What am I looking at here for damage? I didn't ride it very long and when I left the cabin I towed it back to my truck, hoping to keep damage to a minimum.
Burning coolant
- Thread starter AkNomad
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maxwell
Active VIP Member
should be fine probably blew a head gasket. Maybe cracked a cylinder worst case scenerio.
pfi572
Active VIP Member
What Max said . Head o-ring , base gasket or cracked cylinder .
Cylinder most times crack around the power valves .
Recent rebuild by chance ?
Cylinder most times crack around the power valves .
Recent rebuild by chance ?
Bnorth
Active VIP Member
this. reportedly some etecs have improperly torqued head/cylinder bolts that can lead to coolant leaking into the engine over time.
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- #5
No sir, original motor with I think about 2600 miles, give or take. She just all of a sudden started smoking real bad while I was carving up the deep stuff in front of my cabin. Not going to tackle it myself as I don't have the time, I'm going to have my local sled guy take care of it, I was just curious what it might be parts wise. Might be time for a new top end since he's going to be in the motor anyways.
maxwell
Active VIP Member
absolutely. let us know what he finds out.
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- #7
Just talked with him on the phone, he said it was either O-rings or a base gasket but i'm dropping it off tomorrow and will discuss it further with him. He's basically the only guy I trust, other than myself, to work on my toys.
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- #8
Just got off the phone with my repair shop, the base gasket blew dumping coolant into the motor. Going to have to tear into the crank and inspect/replace anything that needs it including new Isolflex, new pistons, gaskets, yada, yada, yada. Good thing I shut her down when I did or she would have locked up and cost me a helluva lot more money. Check out the pics.
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oler1234
Active VIP Member
Mag side blew out the base gasket?
This is is not a typical problem. Did yea let it warm up before you drove off?
Damage looks to be on the intake side of the mag piston
This is is not a typical problem. Did yea let it warm up before you drove off?
Damage looks to be on the intake side of the mag piston
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maxwell
Active VIP Member
holy crap! like mentioned NOT a common problem. in fact ive never seen that before. i dont really see how a base gasket can blow out like that being under that much pressure but anythings possible. almost looks like maybe the block wasnt drained before he lifted the cylinder
id be doing a full inspection but sounds like you are!
id be doing a full inspection but sounds like you are!
slededjr
Active VIP Member
Gotta go with Maxwell on this for sure. I’ve never seen that either. Get a pic of the base gasket if ya can? By the look of the case the gasket should be in tact still on bottom of the momoblock. At least what’s left of it anyways.
maxwell
Active VIP Member
i always use the lower coolant hose where it attaches to the water pump to drian the block. is there another way? because it looks like that hose is still connected as you cant disconnect it with the starter motor in place.
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- #13
Yes sir, I always let it warm up before I ride it, always. He's putting Wiseco pistons in it since the Doo pistons are all on backorder at the dealership where he gets his OEM Doo parts. He also said that it was good thing I didn't try and ride it any further or it would have hydro locked and caused much more serious damage. He's pulled the motor and is splitting the case so he can get a thorough cleaning done on it, won't be cheap but i want it done right and don't want further problems down the road. Next time I talk to him i'll ask him if he's seen this before and get more of his thoughts on what could have caused this to happen. Looks like it's getting a new cylinder too, the old one was too scored and couldn't be honed and stay within tolerance. Nobody ever said this sport was cheap!
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sledd boy
Active member
Maxwell I use a slurp gun or vacume pump and run a longer hose down inside the coolent hose from the tank end
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- #15
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- #17
Crap, I knew there was something I wanted to ask him. I guess I was just a little too excited to get my sled back for the weekend. I'll ask him and will post his answer here.
Wapow
Member
Major bummer, but at least you got a new engine. Do you know if it cost you less to have your mechanic do the rebuild vs. just getting a long block from Doo? I did a long block swap on non-ETECs on a past sled, when upgrading to Doo's latest release just did not seem worth the extra investment. Was something like $3k to have the dealer install it, and it came w/ a 1 year warranty.
MK4TDI
Active VIP Member
Was in at my dealer over the holidays pricing out an 800 etec short block, $2500 plus a core charge of 5 or 6 hundy..... and the best part was the 6 month wait....
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- #20
I would say that having my mechanic do all the work saved me a good bunch of money. He completely tore down the engine including the bottom end and cleaned it all, replaced both pistons with associated parts and cylinders. I also had him do my chain case oil and torsion spring holders while it was in the shop, the total bill came to $2157, which I thought was a pretty fair price considering the work they did on my engine.
As an aside, I asked him what he thought might have caused it and he didn't really have an answer, said it just happens sometimes or overheating it could have done it, but I never overheated that motor as I always pay close attention to the temp gauge. I'm chalking it up to bad luck.
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