Novarossi engines thread
#1891
Tech Fanatic
I am about to break in a murnan +12 sct. I use 30% nitro, do I need to shim this engine out. If so, how much?
#1892
Originally Posted by joemugen
I am about to break in a murnan +12 sct. I use 30% nitro, do I need to shim this engine out. If so, how much?
AFM
#1893
Originally Posted by joemugen
I am about to break in a murnan +12 sct. I use 30% nitro, do I need to shim this engine out. If so, how much?
#1894
Suspended
.1mm shim should be fine.
#1896
Originally Posted by mrgsr
hey guys
wats a good glow plug for a novarossi race .21 running 25%
the engine came with a RB 6 plug so im after something same as that
thanks
John
wats a good glow plug for a novarossi race .21 running 25%
the engine came with a RB 6 plug so im after something same as that
thanks
John
for onroad go with no.7
#1898
It really depends on the weather for that day of racing. Manufacturers include a plug to get you started with the motor, however it is expected that you change the plug according to geographic location, temp, humidity, etc.
#1899
Quick question
For very cold weather...... 6 deg C
Increase head clearance or lower?
Hotter plug or colder??
Cheers
For very cold weather...... 6 deg C
Increase head clearance or lower?
Hotter plug or colder??
Cheers
#1900
Originally Posted by ziggy12345
Quick question
For very cold weather...... 6 deg C
Increase head clearance or lower?
Hotter plug or colder??
Cheers
For very cold weather...... 6 deg C
Increase head clearance or lower?
Hotter plug or colder??
Cheers
and 5 for .12 onroad or .21offroad........
regarding the head clearance, I wouldn't change, anyway theoretically you should increase head clearance due to the higher content of oxygen in the air (lower the temp = higher the density of the air, which means you have a bigger volume of oxygen for a given volume of air compared to higher temps)...
you just need to run the engine rich, and this is why you need a hotter plug, to achieve a complete combustion...........
#1901
I think I'll try increasing the head clearance as the air is denser at lower temps so more compression. I'll see how it runs first but deffo on the No5 plug
Cheers
Cheers
#1902
hey guys i got a novarossi based max power .12 sl3 engine, it a awesome engine just the prob is it needs a change of conrod and i cant seem to undo the head, the head bolts are for a flathead screwdriver which is very unusal, has any1 encountered this problem and what did u use other than a screw driver to undo it got me stuffed cheers kosta
#1903
Tech Fanatic
iTrader: (12)
all nova based engines uses this philips screw. we all normally changed it to 2.5 socket head screw, as i have a very very bad encounter with this nova screw, as the head of the screw snap off, but luckily, it still show a tiny bit where i can use my fingernails to turn it out, phew, else, need to get a new crankcase.
#1904
Originally Posted by uniquexme
all nova based engines uses this philips screw. we all normally changed it to 2.5 socket head screw, as i have a very very bad encounter with this nova screw, as the head of the screw snap off, but luckily, it still show a tiny bit where i can use my fingernails to turn it out, phew, else, need to get a new crankcase.
#1905
Originally Posted by MaDaGAS CAR
hey guys i got a novarossi based max power .12 sl3 engine, it a awesome engine just the prob is it needs a change of conrod and i cant seem to undo the head, the head bolts are for a flathead screwdriver which is very unusal, has any1 encountered this problem and what did u use other than a screw driver to undo it got me stuffed cheers kosta
Once you got them out, you can change them for hex head screws from Picco /Mega/LRP.