My Champion Thin Wire plugs need replacing.

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Don
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My Champion Thin Wire plugs need replacing.

Post by Don »

I currently have Champion thin wire plugs with about 800 hobbs hours on them. Even though I lean aggressively when I taxi, I am now getting fouled plug(s) in the run up. I am thinking of replacing them with Tempest Thin Wire plugs. Wondering if anyone has pireps on the Tempest plugs. Also, what is the proper part number for the Tempest plugs for the DA 40? Thanks.
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Colin
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Re: My Champion Thin Wire plugs need replacing.

Post by Colin »

Not sure of the part number, but I had them for almost a decade in our DA40 and they were flawless.
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Charles
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Re: My Champion Thin Wire plugs need replacing.

Post by Charles »

Same here, they work great. I had to replace one or two at annuals due to wear or cracking (not sure) but whatever the reason, it had no noticeable effect on performance.
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Rick
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Re: My Champion Thin Wire plugs need replacing.

Post by Rick »

I've had the Tempest fine-wires in my DA40 for 10 years, too, with no problems. They are part number "UREM38S" according to my log book.

Edit: fixed the part number to avoid future confusion
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Rich
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Re: My Champion Thin Wire plugs need replacing.

Post by Rich »

Rick wrote: Tue Aug 31, 2021 5:43 pm I've had the Tempest fine-wires in my DA40 for 10 years, too, with no problems. They are part number "REM38S" according to my log book.
For Tempest plugs there is a "U" in the part number: UREM38S.
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Rick
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Re: My Champion Thin Wire plugs need replacing.

Post by Rick »

Thanks, Rich - you are correct. They are UREM38S plugs. I found the invoice, looks like the "U" got dropped in the logbook entry.
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Lance Murray
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Re: My Champion Thin Wire plugs need replacing.

Post by Lance Murray »

Are they oil fouling or lead fouling?
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perossichi
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Re: My Champion Thin Wire plugs need replacing.

Post by perossichi »

I replaced all my champion fine wire with tempest after testing resistance and finding the Champion all out of spec with way too high resistance.

I only have about 500 hours on them. I expect to get over 1000.

I lean to about 1.6-1.8 gph for taxi. I also cruise at least 50 LOP.

No fouling problems.
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Don
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Re: My Champion Thin Wire plugs need replacing.

Post by Don »

Lance Murray wrote: Tue Aug 31, 2021 11:35 pm Are they oil fouling or lead fouling?
I am not sure Lance.
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Rick
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Re: My Champion Thin Wire plugs need replacing.

Post by Rick »

Lance Murray wrote: Tue Aug 31, 2021 11:35 pmAre they oil fouling or lead fouling?
Lance, I've never had any fouling issues. I find some minor carbon deposits in the space around the insulators when I clean them, just like regular plugs, but never any fouling. I also aggressively ground-lean though, and always cruise LOP, which probably helps.
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