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Sandblasted piston
1 Attachment(s)
Another pic... it is the first time and I knew that sooner or later it would be happened... but I am very sad...
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Re: Sandblasted piston
Originally posted by pelos I have been living so long with the nightmare of ruining my wonderful NSR12S3... now is happened. Maybe I used a too hot plug (6TC with 18C temp and 16%nitro) or maybe I was too lean (about 4 1/4 turn out HSN). The plug broke and filament scratched piston side. Top of piston is also sandblasted. See pics The motor run about 8/9 liter. What can I do? If it was my engine, I will clean it off, rebuild it and sell it cheap. Coz in my opinion, it will not recover even P/S+rod is new. The con-rod(big end) and the bearing is suffer from lots a vibration. |
Re: Sandblasted piston
Originally posted by pelos I have been living so long with the nightmare of ruining my wonderful NSR12S3... now is happened. Maybe I used a too hot plug (6TC with 18C temp and 16%nitro) or maybe I was too lean (about 4 1/4 turn out HSN). The plug broke and filament scratched piston side. Top of piston is also sandblasted. See pics The motor run about 8/9 liter. What can I do? |
Re: Re: Sandblasted piston
Originally posted by GoldFinger Feeling sorry :( for you. If it was my engine, I will clean it off, rebuild it and sell it cheap. Coz in my opinion, it will not recover even P/S+rod is new. The con-rod(big end) and the bearing is suffer from lots a vibration. |
Re: Re: Re: Sandblasted piston
Originally posted by BaxterC OW... I feel for you too, what fuel were you using (% Nitro) and what heat plug were you using? |
Re: Re: Re: Re: Re: Re: Re: Re: Clutch
Originally posted by InitialD Titanium does not have a good wear characteristic. We need HUDY Spring steel.:nod: If I want the car light then that's the "price" I'll have to pay. I'm not expecting the Ti shafts to allow faster rotation since we know that the shafts are too small in diameter to make a difference to the rotational mass. Of course, like you said, if Serpent comes out with hollow shafts from Hudy Spring Steel, that would be perfect! Light AND long lasting. :nod: This last statement somehow does not sound right for a business :D, Serpent has to make money somehow too. :D The other thing I'm hoping that will come to those who wait is the KHM .12 engine! :) |
Re: Sandblasted piston
Originally posted by pelos I have been living so long with the nightmare of ruining my wonderful NSR12S3... now is happened. Maybe I used a too hot plug (6TC with 18C temp and 16%nitro) or maybe I was too lean (about 4 1/4 turn out HSN). The plug broke and filament scratched piston side. Top of piston is also sandblasted. See pics The motor run about 8/9 liter. What can I do? |
Re: Re: Team Tamale Digital Clutch Tool
Originally posted by PSI Racing $140 isn't too bad. I would like to try one out before investing on one though. Once I tried the tool, I was immediately in love with it. :D |
Re: Sandblasted piston
Originally posted by pelos I have been living so long with the nightmare of ruining my wonderful NSR12S3... now is happened. |
Re: Re: Re: Re: Re: Re: Re: Re: Re: Clutch
Originally posted by Sow&Steady I'm not expecting the Ti shafts to allow faster rotation since we know that the shafts are too small in diameter to make a difference to the rotational mass. Originally posted by Sow&Steady The other thing I'm hoping that will come to those who wait is the KHM .12 engine! :) |
Re: Re: Re: Re: Re: Re: Re: Re: Re: Clutch
Originally posted by Sow&Steady Yup, you're right, that is why F1 cars literally lasts only 1 weekend's race. :nod: High performance parts does not last usually. If I want the car light then that's the "price" I'll have to pay. I'm not expecting the Ti shafts to allow faster rotation since we know that the shafts are too small in diameter to make a difference to the rotational mass. Of course, like you said, if Serpent comes out with hollow shafts from Hudy Spring Steel, that would be perfect! Light AND long lasting. :nod: This last statement somehow does not sound right for a business :D, Serpent has to make money somehow too. :D The other thing I'm hoping that will come to those who wait is the KHM .12 engine! :) |
Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: Clutch
Originally posted by Palmaris Europe Best bet is to hit Mark Green over the head and start running :D |
Re: Sandblasted piston
Originally posted by InitialD Just like what crashed_1 suggested, perhaps you could put new piston / sleeve in together with a new conrod. How are the other parts like the bearing? Anyway P/S + conrod + rear bearing is 160 USD at mushroom, I will think over, don't know if it is worth since for 260 USD I can have a new engine... BTW how do you take the rear bearing out? Heat gun and ...? |
Re: Re: Sandblasted piston
Originally posted by pelos Front bearing is ok, rear one (I mean the one inside the crankshaft) has something inside: you can feel it sometimes turning by hand. But may be I can take it away since you do not feel it constantly. Anyway P/S + conrod + rear bearing is 160 USD at mushroom, I will think over, don't know if it is worth since for 260 USD I can have a new engine... BTW how do you take the rear bearing out? Heat gun and ...? |
bearing
you may take the bearing out by putting the crank case in the hot plate and heat it up until there is some smoke coming out...
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