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Do you really think the piston rings are worn at 127k on a hybrid with probably 80k actual engine miles? Pixel XL ?
Is he still leaking coolant? Otherwise a couple of long piston soaks could be a more appropriate next move?
My take-away from this thread is engines with old-style intake manifolds may need more periodic EGR circuit cleanses than the popular 100k advice....
The fixed manifold (-37054) may have come out after @donzoh1's 2013? This is the oldest article (dated June 22, 2014) that I could find...
Do you have the part #? Pixel XL ?
It seems to me that cylinder 1 was the hottest since it was the only piston that expanded enough to polish the walls and because there's fewer...
Use this: IMG_20180923_120752 by mjoo posted Sep 28, 2018 at 9:58 AM
I personally would use a head gasket stop leak. That way you have a pressurized cooling system. Pixel XL ?
Without pressure in the cooling system you're encouraging hot spots in your engine. This could mean detonation = metal chunks flying out from...
Make sure to install the OCC and clean the EGR while yanking out those pistons.;) Pixel XL ?
Yeah but how do you know it's better if you never used an ultrasonic cleaner? ;) It's like us Oxiclean guys who never touched a squirt gun....
That's been my experience as well. Around here we get lake effect snow.
100 miles/week most weeks
In Michigan winter I sometimes have to empty the Ruien OCC twice a week and use a little hot water to unfreeze it. But I think it's worth it....
Whatever battery cells you choose will need to handle 130 amps discharge. Unless you have a parallel configuration. If fitting into the existing...
Is it possible to check head bolt torque without removing the head? Pixel XL ?
I have full confidence in @raytheeeagle's super-soaking powers. Pixel XL ?
Found another straw to grasp at... It's very odd that the EGR cooler wasn't plugged at 180k miles if it's never been cleaned. They're usually...
You could always wrap the exhaust with fiberglass. Pixel XL ?
Since you caught it early and stopped driving, hopefully the head itself is Ok. Pixel XL ?