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 Topic: Mc 18 r2j rebuild project 







Fason88

 
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Mc 18 r2j rebuild project

Fason88 » Thu May 07, 2026 10:35 am

Hello to everyone! I 'm George and I 'm very happy because after too many years whithout my mc18 r2j I manage to buy one in a very bad condition and I started to rebuild it! (Sorry for any mistakes but enlish is not my native language) So I will need your help and I will enjoy the conversation with guys with the same passion!
I m starting with these: where can I rebuild the crankshaft ? Where you suggest to replate the barrels? I was thinking of replace the barrels with mc21 ones for better cooling but I m confused about H and L barrels and heads of mc21 as in the engine tuning section of nsrworldcom there is a confusion about this aspect. It is written "The diagram illustrates the difference between SE/SP (H) cylinders/heads and R (L) cylinders/heads" but the table given by HRC, for dry clutch models ( ie SP and SE models) gives L barrels and heads... (?)
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