Throttle to idle, small pops on final

[Hank]

7 hours ago, MikeOH said:

I commonly have lean pops while taxiing, especially in hot weather, but I aggressively lean on the ground.  However, idle is always smooth.

I usually get them when pulling throttle to idle on short final when the weather is hot. On rollout, I lean 2/3--3/4 towards ICO, and she idles nicely. 

[WAFI]

I guess my question is why do we lean aggressively during hot weather at sea level if we experience lean pops? 

[Ragsf15e]

1 hour ago, WAFI said:

I guess my question is why do we lean aggressively during hot weather at sea level if we experience lean pops? 

I personally don’t get “lean pops”, so I’m guessing you have a small intake leak, maybe check the sniffle valve?  
We lean on the ground anytime to prevent lead fouling, especially on the spark plugs.

[Marauder]

Have you had lean pops? I’m having all my intake gasket change tomorrow. I seem to have a rough idle and random lean pop after a flight and landing during the heat of the day.

I hear popping after landing on very hot and humid days. Leaning aggressively will eliminate it. How many hours do you have on your mags and plugs?


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[MikeOH]

15 minutes ago, Marauder said:

I hear popping after landing on very hot and humid days. Leaning aggressively will eliminate it. How many hours do you have on your mags and plugs?


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Interesting.  When I get the pops after landing/during taxi I just enrich the mixture slightly and they go away.  (For me, hours on mags and plugs are irrelevant. I had the issue before I overhauled the mags and put in new plugs.  Still happens.)