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Old 10-23-2008, 04:33 PM   #16
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The MF12 I mean.I have one and think its great.Thats why I want to find out how much to overhaul it.
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Old 10-23-2008, 10:14 PM   #17
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The MF12 I mean.I have one and think its great.Thats why I want to find out how much to overhaul it.
Novarossi engines last so much if taken well care of, that my opinion is to get a new engine instead of replacing the linear/piston... By the time the engine asks to have a linear/piston changed, you will find that the bearings will probably also need a change and that the crankshaft and crankcase/head/carburator might be the only thing that you dont need to replace. The only thing I change in all my engines after 1 gallon of fuel is the conrod, and piston rod. Why? Because no matter what engine it is, 99.9% of them break in the conrod, and by making sure you have a fresh conrod, it will not break through there. I have seen novarossi conrods last over 3 gallons of fuel and still running strong, but I never take changes with a $500 engine.

But to answer your question... piston/linear/conrod is about $200-$250... $100-$150 more and you should be able to buy a NIB engine...

Novarossi conrods should be at $30-35...
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Old 10-24-2008, 08:22 AM   #18
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OK thanks.Still a good bit of life in it!Was just curious.Have already replaced the bearings and conrod.Still not sure what I will do.400 is a bit steep for a new MF in my opinion.I might think about the piston and liner when the time comes.Anyone got any opinions on what pipe to run on the MF.I have used a nova 2630 up to now but its a bit bashed up now!!!! Probably halfway between fast and technical.Any suggestions?
Thanks again
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Old 10-24-2008, 09:23 AM   #19
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Originally Posted by Eoin 27691 View Post
OK thanks.Still a good bit of life in it!Was just curious.Have already replaced the bearings and conrod.Still not sure what I will do.400 is a bit steep for a new MF in my opinion.I might think about the piston and liner when the time comes.Anyone got any opinions on what pipe to run on the MF.I have used a nova 2630 up to now but its a bit bashed up now!!!! Probably halfway between fast and technical.Any suggestions?
Thanks again
max power 2602 works excellent with this motor.

Gael
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Old 10-24-2008, 01:48 PM   #20
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Grand
Thanks
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Old 07-09-2012, 02:18 PM   #21
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If you manage to source out a piston/sleeve combo for the MF 12 please pm me.there is no information on the net about this motor.
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Old 07-09-2012, 02:48 PM   #22
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The Basic N21T1 engine has basicly the same bore/stroke and I belive the LL3 also. I think you can use those P/S sets.
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Old 07-15-2012, 08:06 AM   #23
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Well,i started to have the same problem & after much thought i came down to 3 conclusion....silicon from the exhaust got stuck into one of the chambers....so i had fitted another pipe....but it wasn't that....replace fuel tubing incase of leaks.... and the problem was the Main Bearing had given up which gave me the problem.Replaced bearing and it was done!!!
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