![]() |
Quote:
Anything that cause additional resistance in path to the plug electrodes, including the plug itself, can/will reduce the energy and quality/size of spark. However, the ignition of the fuel/air mixture is binary. It either lights or it doesn't. The issue is range of conditions under which the spark will ignite the mixture. A weak spark is less tolerant of non-optimum mixture and other conditions which make the mix harder to fire. On the fringes, this often manifests as intermittent firing. Larry |
Check EGT?
I plan on more troubleshooting this weekend, I have a full set of EGT probes so what specifically am I looking for on the EGT test? Should they all rise the same?
I plan on the buzz box test also to see if the timing has shifted. Not sure how I would test the leads apart from making sure they are connected properly. Appreciate all the inputs. Figs |
BAD mag, plug, lead
Hi Figs,
I sent you a PM. Take a look at this: http://www.aircraftmagnetoservice.ne...ng-guide/c15r3 You may need something like this to check your leads. http://www.aircraftspruce.com/catalo...abletester.php |
It was a timing issue
Checked the timing today and the right mag was off by about three teeth on the starter ring (3.5 degrees?). Fixed the timing and both mag drops are now the same (about 40 rpm), static full power run up is 2250 with the Catto which is about right and all EGT's rose about the same on the mag tests.
Still puzzled as to the root cause as the mage were cinched down and I did not notice a gradual change in the mag drop on the right. All HT cables, springs etc seem fine.:confused: Figs |
Quote:
|
Quote:
Quote:
|
| All times are GMT -6. The time now is 11:58 PM. |