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  #1  
Old 08-11-2012, 10:29 PM
badmrb badmrb is offline
 
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Default Champion spark plug resistor

Champion REM38E

Is there a source for the internal resistor? Or are my plugs really ready for the trash?

Having sporadic hard starting. I have one electronic ign and one slick mag. Engine starts on mag only. Pulled plugs. Checked mag timing, spark etc.. Decided to measure plug resistance based on some other posts. Of the four plugs I got one to read at 60k and couldnt even get a reading on the other three!

Pulled the resistor out, nothing to see, similar measurements. Hate to throw a hundred dollars worth of good looking plugs away because a resistor the size of a tic tac has failed!
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  #2  
Old 08-12-2012, 04:15 AM
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RV10inOz RV10inOz is offline
 
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Default

Champion will service the plugs if they are worthy of it, and they charge only a few bucks to do it, but they will not send you parts. I don't blame them either.

What is the electrode condition like?

Are the gaps accurate at 0.016 - 0.018" as this really matters when cold starting and when running LOP.

The other option is Tempest.
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  #3  
Old 08-12-2012, 08:10 AM
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mannanj mannanj is offline
 
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Default Plugs

Plugs should read less than 2K ohms. If they read over 5K ohms, replace. Champion is not living up to it's reputation lately. Check for cracked or broken porcelain at the tips.
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  #4  
Old 08-12-2012, 11:06 AM
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Capflyer Capflyer is offline
 
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After spending some time to learn about the Tempest plugs I will be a convert as my plugs need replacing. Here is one of their videos showing how their plugs are manufactured. http://www.youtube.com/watch?v=sxeG8...e5AUAAAAAAAAAA

Just completed my condition inspection and found one of my Champions over 5K ohms so trashed it.
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  #5  
Old 08-12-2012, 11:20 AM
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Larco Larco is offline
 
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I'm reaching here but before you blame the plugs, check to see if the impulse is working by pulling the prop through and listening for a loud snap or click as you go past top dead center on all 4 cylinders? Larry
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  #6  
Old 08-12-2012, 12:37 PM
badmrb badmrb is offline
 
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Location: Pomona, ks
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Mag clicks. Set plugs on top of engine and get a visible spark. Timing right. Mag check is fine. Runs fine. Sporadic hard starting is only complaint.

My cheep meter thats in my airport tool box gives me 60kohms on one plug and wont even read on the other three on the max setting of 2000kohms.

Engine not missing, no visible cracks. With resistor out center electrode reads almost 0 ohms. The silicone carbide resistors have just failed.

Unless a source exists for the little tic-tac sized resistor im probably gonna order tempest replacements first of next week.

Just seems silly to throw perfectly good plugs away. Why even make the resistor removable/replaceable if not able to service it?
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  #7  
Old 08-12-2012, 01:47 PM
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Radomir Radomir is offline
 
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They're not perfectly good any more You're not the only one having this issue with Champion plugs..
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  #8  
Old 08-12-2012, 06:00 PM
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RV10inOz RV10inOz is offline
 
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Quote:
Why even make the resistor removable/replaceable if not able to service it?
Champion will, send them in.

Or buy new.
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  #9  
Old 08-12-2012, 07:04 PM
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rocketbob rocketbob is offline
 
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There's a place in Van Nuys CA that reconditions plugs. I've heard good things about them thru friends. Might want to give them a try.

http://www.trade-a-plane.com/company-search?id=53148
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  #10  
Old 08-12-2012, 08:21 PM
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LifeofReiley LifeofReiley is offline
 
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Default Direct

http://www.championaerospace.com/sup...epair-station/
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