Hello all

Just wondered if anyone can help with a quick issue with my nsr MC16 power valves. I am rebuilding the engine and at the stage of re -fitting the barrels.

I have confused myself as just done a mc28 engine and something doesn't sit right with me with the 16's.

When the holes line up on the brackets for set up should the power valve position be fully open? And they drop down when turned anti clockwise to reveal a gap at the top of the valve which doesn't look right but sure it can be sorted with the position of the wires when set up correctly. As anyone else had this issue?

Thanks

Ian

The holes are for "pinning" the components in position to correctly adjust the cable tension, and don't correspond with "fully open".

When rotated anti-clockwise, the valves close.... drop down, as you put it.

MC16 final adjustment should be performed as follows:

With the engine running, at 2000rpm the valves will open, and the pointer on the pulley and indicator on the backplate should align. Shut the motor off with the kill switch (while the valves are in the open position), and adjust if necessary.

Check that at 3000rpm the RC Valves close again, to ensure correct operation of the servo and control unit.
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Andy.
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HI Andy

Thanks for quick response. Do you mean pinning the holes when setting the valve should be in the closed position then?

Cheers

Ian

No. When pinned, the valves are roughly about 1/2 open. Pin them just to adjust the slack in the cables. Set them by running the motor to 2000rpm and then shutting the motor off with the kill switch.
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Andy.
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Ideal that's great thanks.

Ian

Don't forget to remove the locking pins before starting the motor!
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Andy.
NSR-WORLD.COM

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