salmon_slayer06 Posted January 31, 2015 Report Share Posted January 31, 2015 After topping off the fuel tank I noticed my spark plugs were a little loose. I seen a little bit of oil residue around the spark plug. So I snugged them up and noticed the one side didn't feel right when I snugged it. The dome must have turned with the plug but not much. Well later on after I stopped after a good ride I noticed the coolant all over the place. On my leg, pipes etc. WTF. Motor still started, and even limped back in with it. Motor had been good to me since last build. I don't know what damage has been done to the cylinders or pistons. Its a 50:1 mix Bel Ray MC1. First time with a head gasket failure, I don't know what the standard is for a 4 mill build with $600 ported cylinders. Do I just replace the O rings on the head and retorque, fill her up and go? Or am I looking at a complete tear down, split the cases, replace the crank seals, new pistons, etc. The oring must have broke, or the head nuts need to be retorqued? How many times do you need to check the torque on those things? Every ride? Whats recommended? Do you guys have any tips on the next time I reinstall the new Orings for the NOSS cool head? Damn it. This sucks. Quote Link to comment Share on other sites More sharing options...
SOUTHTHIRTY Posted January 31, 2015 Report Share Posted January 31, 2015 Spark plugs came loose cause.... you had detonation. .. probably lean Quote Link to comment Share on other sites More sharing options...
sheerider1026 Posted January 31, 2015 Report Share Posted January 31, 2015 Over heated? Radiator puke coolant? Quote Link to comment Share on other sites More sharing options...
salmon_slayer06 Posted January 31, 2015 Author Report Share Posted January 31, 2015 I'll take that into consideration. I do need a high flow petcock. Stalled a couple times out there and wasn't even all the way open. Amazing how much more fuel you need when riding in 15 degree temps. 35 pwk's 172/62. fat on top pilot is dead on starts easy cold. Could have lean issues from the stock petcock. I just ordered a pingle from FAST along with NOSS orings seals. Damn I'm pissed. Quote Link to comment Share on other sites More sharing options...
salmon_slayer06 Posted January 31, 2015 Author Report Share Posted January 31, 2015 Not sure about overheating. It did cross my mind didn't look like the rad cap had any coolant on it. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted January 31, 2015 Report Share Posted January 31, 2015 Souththirty is spot on. I'd bet your initial culprit is a lean situation. None the less, coolant is a terribly harsh substance to have in the cylinder. At a minimum, pull it apart hone it and fresh rings if the pistons are ok. Plus whatever needs to be replaced on the head. Quote Link to comment Share on other sites More sharing options...
salmon_slayer06 Posted January 31, 2015 Author Report Share Posted January 31, 2015 (edited) Thanks for the info. Hopefully the oil does its job and doesn't pit the cylinder walls. Edited January 31, 2015 by salmon_slayer06 Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted January 31, 2015 Report Share Posted January 31, 2015 Not so much that it pits the bore, but it can really gall up the aluminum from the piston and imbed it to the bore. Quote Link to comment Share on other sites More sharing options...
salmon_slayer06 Posted February 2, 2015 Author Report Share Posted February 2, 2015 I'm going to send the cylinders back in for a hone. Didn't take apart yet and now we have too much snow and riding is done with for a while. Really bummed it happened because snow pack was perfect out here. Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted February 2, 2015 Report Share Posted February 2, 2015 50:1 is playing with fire literally no need . Make sure u pressure test it before you turn a nut otherwise your guessing , then compression test it, see if you smoked the rings, if you smoked the rings make sure you didn't collapse the skirts and check the cylinder for round Quote Link to comment Share on other sites More sharing options...
BANSHEE HP Posted February 3, 2015 Report Share Posted February 3, 2015 I'm going to send the cylinders back in for a hone. Didn't take apart yet and now we have too much snow and riding is done with for a while. Really bummed it happened because snow pack was perfect out here. Don't send them any where. There are people in your back yard that bore, hone or any of the other work. Quote Link to comment Share on other sites More sharing options...
Whitbread Posted February 4, 2015 Report Share Posted February 4, 2015 ^ What he said. Go see Jerry at Chesterfield Engines. Tell him volkswagen kurt sent you and you need these motherfuckers honed in a timely manner. He's a goofy SOB, but he's an old timer and has forgotten more than most of us know. I'm in there a few days a week usually so I can harass him if I see them sitting around for more than a day or two. Quote Link to comment Share on other sites More sharing options...
BUILDER Posted February 4, 2015 Report Share Posted February 4, 2015 I'll take that into consideration. I do need a high flow petcock. Stalled a couple times out there and wasn't even all the way open. Amazing how much more fuel you need when riding in 15 degree temps. 35 pwk's 172/62. fat on top pilot is dead on starts easy cold. Could have lean issues from the stock petcock. I just ordered a pingle from FAST along with NOSS orings seals. Damn I'm pissed. It did not stall because you need a high flow petcok. If it stalled I am guessing you have the bike jetted way to lean for the weather and it was trying to seize a piston on you. Take it apart and look it over really well then people will be able to give you a better idea of what you need to do next. Lots of people will tell you running 50:1 is cutting it close. I have ran 50:1 in all my bikes for over 5 years with no issues but that is just me. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted February 5, 2015 Report Share Posted February 5, 2015 50:1 is just fine if the oil you're using is designed to do so. Quote Link to comment Share on other sites More sharing options...
J-Madd Posted February 5, 2015 Report Share Posted February 5, 2015 If deto caused the problem or not, if water got into the dome while it was running you probably ended up with deto. Dome(s) and piston(s) are likely not in the best shape. The bore I wouldn't worry about so much. Unless it's due for a bore and hone anyway. Or everything may be fine. Tear down will tell. Of course leak down test first as mentioned. Quote Link to comment Share on other sites More sharing options...
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