Spark plug gap - Zenith Aircraft Builders and Flyers2024-03-29T01:18:49Zhttps://zenith.aero/forum/topics/spark-plug-gap?commentId=2606393%3AComment%3A674403&feed=yes&xn_auth=noOops, I was wrong it is the I…tag:zenith.aero,2020-01-17:2606393:Comment:7067762020-01-17T02:30:51.613ZDavid Banahanhttps://zenith.aero/profile/DavidBanahan
<p>Oops, I was wrong it is the IWF-22 gapped to .035. Thanks Ken for pointing out my error.</p>
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<p>Oops, I was wrong it is the IWF-22 gapped to .035. Thanks Ken for pointing out my error.</p>
<p></p> The IWF-22 is the recommended…tag:zenith.aero,2020-01-16:2606393:Comment:7067702020-01-16T18:59:20.716ZKen Pavlouhttps://zenith.aero/profile/KenPavlou
<p>The IWF-22 is the recommended plug for the 3000cc as indicated in the MOP manual. The IWF-24 that David mentioned above is the recommended plug for the 3300cc corvair.</p>
<p>The difference in the plugs is how hot they run and the ability to prevent lead fouling and detonation. With Denso plugs the higher the number the cooler the plug.</p>
<p>-Ken</p>
<p>The IWF-22 is the recommended plug for the 3000cc as indicated in the MOP manual. The IWF-24 that David mentioned above is the recommended plug for the 3300cc corvair.</p>
<p>The difference in the plugs is how hot they run and the ability to prevent lead fouling and detonation. With Denso plugs the higher the number the cooler the plug.</p>
<p>-Ken</p> What's the difference compare…tag:zenith.aero,2020-01-16:2606393:Comment:7067152020-01-16T18:00:54.650ZDavid J Tillemahttps://zenith.aero/profile/DavidJTillema
<p>What's the difference compared to what he's currently using as per WW Mop? </p>
<p>What's the difference compared to what he's currently using as per WW Mop? </p> David B.,
The correct plug fo…tag:zenith.aero,2020-01-16:2606393:Comment:7067122020-01-16T17:47:20.589ZKen Pavlouhttps://zenith.aero/profile/KenPavlou
<p>David B.,</p>
<p>The correct plug for your 3000cc corvair is the Denso IWF-22 gapped to 0.035.</p>
<p>-Ken</p>
<p>David B.,</p>
<p>The correct plug for your 3000cc corvair is the Denso IWF-22 gapped to 0.035.</p>
<p>-Ken</p> Screenshot_20200116-063803_Ch…tag:zenith.aero,2020-01-16:2606393:Comment:7064292020-01-16T17:06:41.497ZDavid J Tillemahttps://zenith.aero/profile/DavidJTillema
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/3822470898?profile=original" target="_blank" rel="noopener">Screenshot_20200116-063803_Chrome.jpg</a></p>
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/3822470898?profile=original" target="_blank" rel="noopener">Screenshot_20200116-063803_Chrome.jpg</a></p> Did you compare CHTs to previ…tag:zenith.aero,2020-01-16:2606393:Comment:7065412020-01-16T13:13:08.401ZDavid J Tillemahttps://zenith.aero/profile/DavidJTillema
<p>Did you compare CHTs to previous plugs ? Any cooler ? </p>
<p> I have a 3.1. Using AC 44f </p>
<p> Was contemplating out of curiosity trying the Denso. You mention a different plug for different displacements. Whys that. </p>
<p>I thought all corvairs used same plugs regardless of size. </p>
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<p>Did you compare CHTs to previous plugs ? Any cooler ? </p>
<p> I have a 3.1. Using AC 44f </p>
<p> Was contemplating out of curiosity trying the Denso. You mention a different plug for different displacements. Whys that. </p>
<p>I thought all corvairs used same plugs regardless of size. </p>
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<p> </p> I'm using Denso Iridium 5379/…tag:zenith.aero,2020-01-16:2606393:Comment:7066362020-01-16T01:17:24.441ZDavid Banahanhttps://zenith.aero/profile/DavidBanahan
<p>I'm using Denso Iridium 5379/IWF-24 in my 3000 cc Corvair. Other displacements use different plugs. Reduces chance of detonation. If you are either flying or contemplating flying behind a Corvair engine you should read WW's new Maintenance, Operations, and Procedures Manual. Standardized info all in one place. Available from flywithspa.com. Well worth the money.</p>
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<p>I'm using Denso Iridium 5379/IWF-24 in my 3000 cc Corvair. Other displacements use different plugs. Reduces chance of detonation. If you are either flying or contemplating flying behind a Corvair engine you should read WW's new Maintenance, Operations, and Procedures Manual. Standardized info all in one place. Available from flywithspa.com. Well worth the money.</p>
<p></p> Which Denso plug # are you us…tag:zenith.aero,2020-01-15:2606393:Comment:7064002020-01-15T20:36:05.594ZDavid J Tillemahttps://zenith.aero/profile/DavidJTillema
<p>Which Denso plug # are you using? Why Denso Vs AC Delco? </p>
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<p>Which Denso plug # are you using? Why Denso Vs AC Delco? </p>
<p></p> Of course you are right. I h…tag:zenith.aero,2019-05-25:2606393:Comment:6781032019-05-25T01:34:03.733ZJohn A. Minatellihttps://zenith.aero/profile/JohnAMinatelli
<p>Of course you are right. I have an Azalea Aviation 120 HP Corvair conversion engine with points and electronic ignition running off of a dpdt selector switch and redundant coils for each ignition choice. The electronic ignition is a FAST XRi unit. Point gap is 0.019, static point timing is 10 degrees BTDC number one cylinder. Plugs are AC/Delco 44F with a 0.32 plug gap. Engine is carbonated with a 40mm Revmaster slide carb. The combination provides excellent performance. The distributor…</p>
<p>Of course you are right. I have an Azalea Aviation 120 HP Corvair conversion engine with points and electronic ignition running off of a dpdt selector switch and redundant coils for each ignition choice. The electronic ignition is a FAST XRi unit. Point gap is 0.019, static point timing is 10 degrees BTDC number one cylinder. Plugs are AC/Delco 44F with a 0.32 plug gap. Engine is carbonated with a 40mm Revmaster slide carb. The combination provides excellent performance. The distributor is supplied by Azalea and tested at full speed to ensure a 28-32 degree BTDC advance at 2600 rpm. This is the total advance eg. 32 total with 10 degrees static included in that total 32 degrees. Do not exceed 32 degrees on the engine or you will get damaging detonation and I recommend you only use 100 LL. How’s that?</p>
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<p>John Minatelli</p> Updated info- Using Denso plu…tag:zenith.aero,2019-04-21:2606393:Comment:6744032019-04-21T23:46:36.334ZDavid Banahanhttps://zenith.aero/profile/DavidBanahan
<p>Updated info- Using Denso plugs .030.</p>
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<p>Updated info- Using Denso plugs .030.</p>
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