Causes Of Spark Plug Fouling | Maintenance Minute
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- Опубліковано 7 лип 2024
- Is it the oil? The gas? or the coolant? Spark plugs can be the “canary in the coal mine” for underlying engine issues. Find out 3 things that can foul a spark plug and how to spot the problem with Andrew Markel in this week’s Maintenance Minute!
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Thank you very much sir.
Great video . Thank you !
Finally a good video on plug residue buildup and what it means! Thanks! I have a gmc 350 ,415,000 miles, plugs now have a white residue building up on 1 year old plugs, #7 cylinder has a lot of buildup. I know she is due for a motor replacement, coolant puddles on the intake, blows smoke from ring wear, but can still tow a heavy load.
Thanks again!
Thankyou for sharing your video.
Thank you for making this video :)
Thank you very much!!!!
Thanks bro 👍
Short, sweet, to the point., and easy to understand.. 10/10 my man 10 out of fuckinnnn 10 for the vid. All these videos from people got 90% of it them laying in he engine bay talking about shit they hate or rambling about their life that’s not related to the engine at all anfs waste of time. Perfectly executed on this.
Very helpfull vid😎
Best of tip
thanks bro
fookin great mahn
I ran too much octane booster with MMT in it and it turned all of my plugs orange? I'm assuming orange on the top of all the pistons and the bottom of all the valves? Can I run premium unleaded here in CA and will that shit burn off and go away? or not? Did I harm my motor??
I've found that they can go sooty in a motorcycle engine as if it was running too rich if the piston rings or valve guides are a bit worn.
I asked a couple of people about it 24 years ago,an automotive teacher & a motorcycle shop,they both asked is it blowing any smoke or is it a bit old ?
The band aid fix for that was to go to a hotter spark plug which reduced carbon fouling for a while.
It also depends on what the engine is used for,excessive idling & the spark plugs will run black !
Or buy a high flow K&N air filter.
Can you tell me why I have side spark? Instead of spark jumping to J at end of jumps to the side??
My car has a no crank no start problem and I saw engine oil in the coils could that be the reason
Hi Thanks for helping people with your videos. I have a 95 toyota corolla with 200k, I found oil not on spark plugs but only on their threads. I have check the dry compression and its exactly 200psi on all cylinders. Am not sure if the rings are bad or valve stem seals or either pcv gone bad. I regularly clean pcv and felt its not the problem. Please help. Thanks
Valve cover gaskets are leaking into the spark plug wells.
These were just very extreme cases of spark plug contaminations, often the differences are more subtle.
LOL I love the canary in the coal mine reference, 5 of my plugs were regular for a 100k mile Honda engine, likely factory plugs, but the rear (V6 obviously) steering side plug was black, but not caked with anything, not shiny, just like a matt black carbon like appearance on the electrode porcelain. Best reference for the color would be the inside of the end of a tail pipe, that color. No engine codes, just something I noticed when doing a routine plug swap. The car runs and idles smooth so I was surprised when I saw it.
Any thoughts?
Is this the early signs of future problems on this cylinder?
I realize this is a 5 year old video and I may not get a response but this is not an urgent issue, I was just curious if you had any tips/feedback for me if you have the time and happen to see this.
My old dad (R.I.P) was a motor mechanic & a used car dealer, sometimes if he had a car for sale with oily rings in one cylinder & had no budget to replace all the rings & bearings, he would just replace the spark plug with a hot plug.
wow, so he scammed poor folks instead of fixing the car.. got it.
@@WeirdWabbit who cares sold as is.
@@fordnut4914 only trash people say what you said ...
on my car the threads and tip of the plug was all cover in soot, and it smell like fuel, my friend told me that my car is flooded.
kool plymouth behind you 58 belverdere?
3 out 8 spark plugs on car are wet with gas smell what does that mean. I just installed a new ignition coil. And car will crank and cut off. Its carburetor. Any help will be appreciated
check fuel pump
nobody talks about how restricted some exhaust systems are, if you car has a muffler with a tiny 2 inch or less outlet coming out of it you need to drill a hole and jb weld a broomstick or cheap pipe in that and like my post after ur car runs smoother and gets +3-7 mpg on the highway.
Thanks internet dad! Time to replace my valve cover 🙃
mine was just dark black but not like the first one.. who knows
Four dead cylinders.
What causes a red dust on iridium plug. Been thru 8 less than 4500miles
same, I had red dust coat on all my plugs...
Maybe the spark plug's gap is too narrow
Kyle Thornberry to,
Paano
2tr engin non broblem
Is this for snowmobiles to? Bescuse i have a prblem with a snowmobile thats always blowing the plugs..
Define "blowing the plugs", it's unclear what you mean.
Fouling?
Change the pre mix your putting in it. Also thin it out alil. 32.1 or 28.1 is a good place to start.
@@dmo848 FYI 32.1 is 4 oz of 2 cycle mix and 50.1 is 2.6 oz of 2 cycle mix. The higher the number the less 2 cycle used.
how to fix carbon fouling in a normal color
I guess I have worn out rings😋
Long trim. The reading should be close to zero.