B
So here it goes. Installing head shim for 2010 nytro impulse turbo. I have the head shim installed and while moving on to the cam timing have become very confused. The nytro service manual states several times use the "I" mark on the magneto rotor to align the motor to "TDC" on cylinder #3 "compression" stroke. This aligns the cam timing dots on every other rotation. This is in section 2-7 and 2-8 of the 08 service manual. also refer to section 5-16 to 5-25. you can see that if the camshaft lobes are turned away from each other and the cam dots are lined up with the arrows that this is actually the start of the intake stroke and not compression. Is this a error in the service manual or to i have some thing assembled wrong? It mentions this several times in chapter 5 as well.
Checking steps:
• Turn the crankshaft clockwise.
• When piston #3 is at TDC on the compression
stroke, align the TDC mark a on the AC magneto
rotor with the mark b on the AC magneto
cover.
NOTE:
TDC on the compression stroke can be found when
the camshaft lobes are turned away from each
other.
If you were to rotate the mag 360 deg the camshaft lobes would point up and at each other (all valves closed) this would be the top dead center of the compression stroke but the cam dots would be upside down and out of sight.
I posted pics of my current set up with the "I" in the center and the dots lined up with the arrows
I have had this apart an extra day just looking at it second guessing myself. Am I missing something? Is it assembled wrong? Maybe i just do understand lol!
I cannot see this being a error in the service manual but some thing is not right.
Please Help Me!!!!!
Chris Luiten 306-630-6991
you can download service maual at ty4stroke.com under sticky fx nytro miscellaneous her is link: http://ty4stroke.com/viewtopic.php?t=58910
_________________
08 Apex LTX GT 40th 136" cobra,198 gd,extros, simmons,scratchers,triplepts,7.1revalve,powder coating,gps,snoweliminators,13mm sway, oil-lights,vent kit,grease zirks,OFT steering
10 Nytro MTX SE 162"
Checking steps:
• Turn the crankshaft clockwise.
• When piston #3 is at TDC on the compression
stroke, align the TDC mark a on the AC magneto
rotor with the mark b on the AC magneto
cover.
NOTE:
TDC on the compression stroke can be found when
the camshaft lobes are turned away from each
other.
If you were to rotate the mag 360 deg the camshaft lobes would point up and at each other (all valves closed) this would be the top dead center of the compression stroke but the cam dots would be upside down and out of sight.
I posted pics of my current set up with the "I" in the center and the dots lined up with the arrows
I have had this apart an extra day just looking at it second guessing myself. Am I missing something? Is it assembled wrong? Maybe i just do understand lol!
I cannot see this being a error in the service manual but some thing is not right.
Please Help Me!!!!!
Chris Luiten 306-630-6991
you can download service maual at ty4stroke.com under sticky fx nytro miscellaneous her is link: http://ty4stroke.com/viewtopic.php?t=58910
_________________
08 Apex LTX GT 40th 136" cobra,198 gd,extros, simmons,scratchers,triplepts,7.1revalve,powder coating,gps,snoweliminators,13mm sway, oil-lights,vent kit,grease zirks,OFT steering
10 Nytro MTX SE 162"
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