ArlingtonRV
Well Known Member
I am having difficulties timing my LASAR mags, well, just the left one.
A little history. I bought the airplane a few years ago and shortly thereafter sent both mags out for IRAN. I installed and timed them per the T-300 manual and had no problems. I have checked and adjusted the timing a couple of times since with no problems. This time, problem.
I started with step 3.9 on page 17 and noticed that the timing was off by a couple of degrees. I then back tracked to step 3.6 on page 14 and TDC was off by a couple of degrees. I realigned it per step 3.6 and got it back to TDC. When I got to step 3.7 and rotated the engine backwards until the "LEFT BKR PT" turned off then rotated forward until it turned on the base timing was off by a couple of degrees. I backed off the prop again for another try and the light wouldn't go off no matter how much I turned the prop. The right mag worked as advertised.
The first thing I tried was to put all new AAA batteries in the test box and try again.
I once again went back to square one and tried again starting at step 3.6. The the same thing happened. The light went out once, but when I tried to back it off to repeat the process it won't go off at all.
This concerns me as it would seem to indicate that the points are closed all the time and that would seem to be a bad thing.
Has anyone encountered this before or know what it could mean or how to rectify it? Thanks
A little history. I bought the airplane a few years ago and shortly thereafter sent both mags out for IRAN. I installed and timed them per the T-300 manual and had no problems. I have checked and adjusted the timing a couple of times since with no problems. This time, problem.
I started with step 3.9 on page 17 and noticed that the timing was off by a couple of degrees. I then back tracked to step 3.6 on page 14 and TDC was off by a couple of degrees. I realigned it per step 3.6 and got it back to TDC. When I got to step 3.7 and rotated the engine backwards until the "LEFT BKR PT" turned off then rotated forward until it turned on the base timing was off by a couple of degrees. I backed off the prop again for another try and the light wouldn't go off no matter how much I turned the prop. The right mag worked as advertised.
The first thing I tried was to put all new AAA batteries in the test box and try again.
I once again went back to square one and tried again starting at step 3.6. The the same thing happened. The light went out once, but when I tried to back it off to repeat the process it won't go off at all.
This concerns me as it would seem to indicate that the points are closed all the time and that would seem to be a bad thing.
Has anyone encountered this before or know what it could mean or how to rectify it? Thanks