warmblood58 Posted March 9, 2015 Share Posted March 9, 2015 Hello! I just pulled my plugs (standard NGK not plat or iridium) from a Subaru powered vanagon which I had purchased about a month ago. My engine is a 1991 EJ22 from a Legacy. My plugs, which are about 2 years old, seemed a little too clean, electrodes slightly rounded but the tips were a very light ash grey and the white porcelin around electrode is very clean which has me thinking that engine might have some coolant leakage into chambers? What are the various ways that coolant can leak into the chamber on a EJ22 if this is the case? Any pics of what a perfectly clean plug looks like from an engine that is not leaking coolant? Am I being completely paranoid here? I will be spending some time in the next few days trying to determine if in fact I have some combustion chamber leakage. Oil drain revealed brown fluid, coolant appears to be free of oil. How common is coolant migration in these EJ22's? I was just very surprised to see plugs looking like this. Previous owner did report previous overheating episode in the past - topend was done at some point in the past - is retorqueing advised on these engines? Thanks again! Oh, we did just drive about 800 miles recently in a day, no overheating, no oil consumption which made me quite happy, thanks again! Link to comment Share on other sites More sharing options...
bcmaxx Posted March 9, 2015 Share Posted March 9, 2015 Unless you are noticing a loss of coolant or overheating. I think you are plugs are only victim of a well running subie motor! Link to comment Share on other sites More sharing options...
warmblood58 Posted March 10, 2015 Author Share Posted March 10, 2015 That is a relief - I am used to soot/etc. near electrode. I did forget that I recently ran a tank of fuel with BG fuel treatment - pretty good stuff and I would imagine that this product most likely cleaned up plugs a bit. Link to comment Share on other sites More sharing options...
warmblood58 Posted March 10, 2015 Author Share Posted March 10, 2015 I think I am just paranoid after reading so many posts about coolant finding its way into combustion chambers - Link to comment Share on other sites More sharing options...
monkeyposeur Posted March 10, 2015 Share Posted March 10, 2015 The early ej22s rarely have head gasket issues so don't worry about it. It is the 96 and later ej22s and ej25s. Let's see some pics of your Vanagon and the engine! Link to comment Share on other sites More sharing options...
warmblood58 Posted March 11, 2015 Author Share Posted March 11, 2015 Will do - still doing some detailing and cleanup around engine bay Link to comment Share on other sites More sharing options...
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