Piston rings get stuck with deposits and/or some cylinder wall scoring.
I understand the source of piston ring deposits. What typically causes cylinder wall scoring?
Piston rings get stuck with deposits and/or some cylinder wall scoring.
Stuck rings, certain operating conditions.I understand the source of piston ring deposits. What typically causes cylinder wall scoring?
Yes, valves were adjusted at 75k and again at 150k. This thing would carbon foul the plug in cyl 2 every 30k miles. Hard carbon on electrode.When you say it burned the exhaust valve "due to carbon", how do you know? Couldn't it have been due to a too-tight valve clearance? Did you do any valve clearance adjustments prior to this event?
Was that car yours the whole time? No offense intended, but it looks like that car was rode hard and put away wet, explaining the rust and maybe the valve situation.This was my 2010 K24 at 180K miles.
3qts/5k consumption. Burned exhaust valve due to carbon.
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I was at the point of just dumping in whatever oil and changing the filter every 6 months.
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Ironically, a new valve and valve guide seals stopped the oil consumption. Was down to ½qt/5k OCI. Drove it for another 2 years (26k miles).
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Then this happened.... Several of us here know the feeling.........
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how bad is pulling the head off of a K24? never done it but i’m fairly certain my 400k mile K24 has bad valve seals and it burns quite a large amount of oil. i’m invested in running it until it blows but i want to replace the valve seals.This was my 2010 K24 at 180K miles.
3qts/5k consumption. Burned exhaust valve due to carbon.
View attachment 275062
I was at the point of just dumping in whatever oil and changing the filter every 6 months.
View attachment 275063
View attachment 275064
Ironically, a new valve and valve guide seals stopped the oil consumption. Was down to ½qt/5k OCI. Drove it for another 2 years (26k miles).
View attachment 275065
Then this happened.... Several of us here know the feeling.........
View attachment 275066
Depends on your mechanical knowledge. Mine was in a CR-V. No special tools needed and I did it in my garage with a floor jack. Best part was the integral exhaust manifold so all 4 studs came right out! The head bolts are reusable, and I used FelPro top end gasket set. Only needed the V-TEC actuator seals from the dealer.how bad is pulling the head off of a K24? never done it but i’m fairly certain my 400k mile K24 has bad valve seals and it burns quite a large amount of oil. i’m invested in running it until it blows but i want to replace the valve seals.
former diesel mechanic, now engineer and part time fleet mechanic.Depends on your mechanical knowledge. Mine was in a CR-V. No special tools needed and I did it in my garage with a floor jack. Best part was the integral exhaust manifold so all 4 studs came right out! The head bolts are reusable, and I used FelPro top end gasket set. Only needed the V-TEC actuator seals from the dealer.
The timing cover is just on with RTV and my favorite is Permatex ultra Black. My timing chain was at about 70% stretch, and I just put it back in. It was a budget repair, due to tye rust underneath. Planned on selling it soon, but ended up being recalled and Honda bought it back. So it was a big win.
You'll be good! I worked professionally on vehicles (independent garage) for a decade, but that was 15 years ago.former diesel mechanic, now engineer and part time fleet mechanic.
i was debating on not pulling the front cover. is it possible to pull the sprockets off the cams in place?You'll be good! I worked professionally on vehicles (independent garage) for a decade, but that was 15 years ago.
We bought it at 60k and 5 years old. It was well taken care of and the interior looked like new when it fell apart. I live in northern Maine where we have 6 months of snow and salt. Vehicles rust away here.Was that car yours the whole time? No offense intended, but it looks like that car was rode hard and put away wet, explaining the rust and maybe the valve situation.
No, you must remove timing chain, tensioner etc.i was debating on not pulling the front cover. is it possible to pull the sprockets off the cams in place?
I'm not accusing, just asking. Does using 3 qts every 5k miles cause piston deposits like that? The tops of those pistons are ugly.
That’s what happens when you never do a valve adjustmentThis was my 2010 K24 at 180K miles.
3qts/5k consumption. Burned exhaust valve due to carbon.
View attachment 275062
I was at the point of just dumping in whatever oil and changing the filter every 6 months.
View attachment 275063
View attachment 275064
Ironically, a new valve and valve guide seals stopped the oil consumption. Was down to ½qt/5k OCI. Drove it for another 2 years (26k miles).
View attachment 275065
Then this happened.... Several of us here know the feeling.........
View attachment 275066