WindOnHisNose
BENEFACTOR
Lino Lakes MN (MY18)
I had my engine overhauled two years ago, had the cylinders "ported and polished" by a reputable outfit in California. 160 hp Lycoming. Overhauled the engine, the Slik mags..."It will be even more hp than 160" I was told by Mark Baker and several notable others. Cost more, but it would be worth it...
The engine ran hot...like it would go over redline when it was 80 degrees OAT, and I was told that when hp goes up, so does heat. Made sense. Maybe I would need a bigger oil cooler. So, I called Randy Rubbert, Reynolds ND, and he agreed and had a larger capacity oil cooler... which I promptly put on.
Still, the engine ran close to redline...and again would go past redline when it was hot.
I was told by some reputable people that the redline was a relatively random data point, that in fact it is not harmful for our engine to run over redline, but that it made our oil break down faster, hence would need an oil change.
I was advised that this could be a timing issue, so I asked my terrific AI to check it, and it was, indeed, off a bit. But still the engine ran hot.
I just found out what the right answer was...since it is now running nice and cool, even in warm weather since "the fix".
What was the fix?
Randy
The engine ran hot...like it would go over redline when it was 80 degrees OAT, and I was told that when hp goes up, so does heat. Made sense. Maybe I would need a bigger oil cooler. So, I called Randy Rubbert, Reynolds ND, and he agreed and had a larger capacity oil cooler... which I promptly put on.
Still, the engine ran close to redline...and again would go past redline when it was hot.
I was told by some reputable people that the redline was a relatively random data point, that in fact it is not harmful for our engine to run over redline, but that it made our oil break down faster, hence would need an oil change.
I was advised that this could be a timing issue, so I asked my terrific AI to check it, and it was, indeed, off a bit. But still the engine ran hot.
I just found out what the right answer was...since it is now running nice and cool, even in warm weather since "the fix".
What was the fix?
Randy