Sparkplug reading

Angelcma · 12-14-2020, 06:59 PM

Hi guys, good evening.
Recently I changed spark plugs, how much can you tell from my engine just by ñooking at them.
Please see the attached image.

E92.Dom · 12-14-2020, 08:13 PM

I don't know exactly but I can tell you the gapping is way off, so your engine was probably running pretty bad.

Phil325i · 12-15-2020, 03:32 AM

This might help...

https://ngksparkplugs.com/en/resources/read-spark-plug

e91Owner · 12-15-2020, 08:24 AM

Quote:

Originally Posted by Angelcma

Hi guys, good evening.
Recently I changed spark plugs, how much can you tell from my engine just by ñooking at them.
Please see the attached image.

I agree that it looks like the gap is a little large, but that may just be the photos.

Other than that it's hard to tell since you didn't list the age. They look pretty normal if they've been in there for 50-100k, although it does look like there was some oil on top of the insulator which may indicate an oil leak.

Angelcma · 12-15-2020, 11:01 PM

They have been used for around 50k km

12-14-2020, 06:59 PM	#1
Angelcma Private First Class 36 Rep 103 Posts Drives: 2006 BMW e90 Join Date: Nov 2019 Location: USA iTrader: (0)	Sparkplug reading Hi guys, good evening. Recently I changed spark plugs, how much can you tell from my engine just by ñooking at them. Please see the attached image. Attached Images
	Appreciate 0 Tweet Quote

12-14-2020, 08:13 PM	#2
E92.Dom Private First Class 65 Rep 155 Posts Drives: 2012 bmw e92 335i Join Date: Oct 2018 Location: New Jersey iTrader: (0)	I don't know exactly but I can tell you the gapping is way off, so your engine was probably running pretty bad.
	Appreciate 0 Quote

12-15-2020, 03:32 AM	#3
Phil325i Brigadier General 639 Rep 3,215 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	This might help... https://ngksparkplugs.com/en/resources/read-spark-plug __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
	Appreciate 0 Quote

12-15-2020, 11:01 PM	#5
Angelcma Private First Class 36 Rep 103 Posts Drives: 2006 BMW e90 Join Date: Nov 2019 Location: USA iTrader: (0)	They have been used for around 50k km
	Appreciate 0 Quote