My pmags have generally worked fine for me, but every once in awhile, I dont get an immediate startup for whatever reason, sometimes something as stupid as having not flipped the ignition switches on. The problem comes when I go for start try #2. Sometimes I get a prop kickback when I hit the switch. After severe cussing, I try again and everything has been fine - until now. Removed the cowl and spot checked everything the other day and found that the case on my starter (Sky-Tec model 149-NL) is badly cracked. More cussing.
Called up emagair this morning and talked to Brad. Apparently kickbacks are an occasional problem on aircraft with lightweight composite props such as mine - Whirlwind 200RV. The solution is to slightly adjust the ignition timing to 2-3 degrees past TDC. Wish I had known this before, but maybe this post will motivate someone else who has witnessed the occasional kickback to make this change now instead of experiencing a broken starter while far from home.
SkyTec says the most I will be out is $200, and I may be able to get full warranty coverage - need to check the logbook to see when the starter was installed. Im relieved about that.
regards
erich
Called up emagair this morning and talked to Brad. Apparently kickbacks are an occasional problem on aircraft with lightweight composite props such as mine - Whirlwind 200RV. The solution is to slightly adjust the ignition timing to 2-3 degrees past TDC. Wish I had known this before, but maybe this post will motivate someone else who has witnessed the occasional kickback to make this change now instead of experiencing a broken starter while far from home.
SkyTec says the most I will be out is $200, and I may be able to get full warranty coverage - need to check the logbook to see when the starter was installed. Im relieved about that.
regards
erich
