glow plug question
<div style="margin: 0in 0in 0pt">Ok I have a glow plug question I have an OS 91 FSIIp in a Balsa USA ¼ cub I’m running Powermaster 20/20 and flying from a field with an elevation of 2589 ft and have been for 2 years.</div><div style="margin: 0in 0in 0pt"></div><div style="margin: 0in 0in 0pt">The idle has always been impressively low and consistent. Last month I replaced my glow plug (OS # F) with a new (OS #F) witch only lasted 3 flights and 2 idle screw adjustments.</div><div style="margin: 0in 0in 0pt"></div><div style="margin: 0in 0in 0pt">I only had an OS#8 in my flight box when the second plug went 10-7. I know have 2 more flights and have had to adjust the idle screw twice and I’m still not happy with the idle.</div><div style="margin: 0in 0in 0pt"></div><div style="margin: 0in 0in 0pt">Is there a plug that would work better for my purposes? I get confused on what plug works best in a particular application.</div><div style="margin: 0in 0in 0pt"></div><div style="margin: 0in 0in 0pt">An example last weekend we had a young man show up at the field with a trainer with a new OS 46LA and a #3 plug. The motor would not idle somebody made the comment that it needed a # 8. They swapped out the plug with a #8 and it purred like a kitten. The motor came with the #3 so that is what the guy had for a replacements. They tried three of the #3 plugs (new) before the #8. It was like magic and the guy with the # 8 was a hero of the hour.</div>