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Engine basics => Engine set up tips => Topic started by: Karl Knipper on September 04, 2009, 06:03:29 AM
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Good Morning fellow fliers.
I have a couple of old McCoy Red head engines. I was wondering what would be a good replacement glow plug for the oldtimers. I need to have a couple for the field box. I am currently running about 26 % oil content.
Thanks again
Karl
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I'm no expert, but I've started to use OS A3's (I think they're listed as #8, now). They're the hot ones. They work real well for me. Some guys say that Thunderbolts are the only way to go, and I will try them once my supply of A3's goes down.
Glen
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I use Fox 2-volt longs. Run fine in McCoys (and all my other engines as well).
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I have had very good runs on my McCoy Red Heads with Thunderbolt long R/C plugs. I have been using them for about 14 years without problems.
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Karl, we've had continued success with both the Sig R/C Long, and the Glow Devil #300 plugs in engines similar to yours. Both are fairly hot plugs for good operation with higher castor/low nitro fuels, as well as the more standard blends.
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I wouldn't argue with the above recommendations, but would point out that McCoy glowplugs appear to still be available from Tower Hobby. They are actually made by Ohlsson Corporation, who usta make O&R engines and who also make Thunderbolt, K&B, and many other brands of glowplugs...the good ones, IMO. Just in case you're interested. Use the hottest one they have listed, Idle Bar R/C or 4-cycle. :! Steve