doc-ketamine
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- First Name
- Matt
- Joined
- Dec 30, 2020
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- 417
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- Location
- Pennsylvania
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- 2021 JT Rubicon
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I was at AOAA in PA today with some friends, and we chose to go up the "greenest black trail" in the park. It's called "The Shaft" and it's rated black, at the end of a long green trail. It's rated black because of the steepness of the incline, the length of the climb, and the loose rocks and juke turns, not because of large rocks or dropoffs or breakovers.
I was apprehensive looking up that hill, but I've done climbs that steep before in the JTR, I know my brakes are good and could hold me if I needed to stop, and we had lots of recovery options. So I went third after two JKUs made easy work of the climb. 4-low, lockers on, traction control off. First half of the climb went well. Seat-of-the-pants felt like 45 degrees of incline as I was leaned so far forward, but it was probably around 20 degrees. Wish I had remembered to turn on the pitch display! Anyway, about 2/3 up the hill white smoke starts coming out of the rear, I hear clicking from back there, and the power fades. I stop and wait, and was able to start again with good power. Smoke was gone. About 30 feet later, same deal ... white smoke, power fade, had to stop.
I asked the other drivers what they thought, and consensus was it was oil blow-by what caused the smoke, since I don't have a catch can. That's now on my list. Would this cause the power fade? The smoke did smell like burning oil ...
Rest of the day I kept an eye on oil + water + transmission temps, all good even on some blue trails. Oil pressure was around 30 at idle, 60-75 when RPMs were high (like accelerating on the highway on the ride home). Never had another power fade, though there were no other hills quite like that.
Anyone see something similar?
If this should go in a different sub-forum, LMK and I'll ask to have it moved.
I was apprehensive looking up that hill, but I've done climbs that steep before in the JTR, I know my brakes are good and could hold me if I needed to stop, and we had lots of recovery options. So I went third after two JKUs made easy work of the climb. 4-low, lockers on, traction control off. First half of the climb went well. Seat-of-the-pants felt like 45 degrees of incline as I was leaned so far forward, but it was probably around 20 degrees. Wish I had remembered to turn on the pitch display! Anyway, about 2/3 up the hill white smoke starts coming out of the rear, I hear clicking from back there, and the power fades. I stop and wait, and was able to start again with good power. Smoke was gone. About 30 feet later, same deal ... white smoke, power fade, had to stop.
I asked the other drivers what they thought, and consensus was it was oil blow-by what caused the smoke, since I don't have a catch can. That's now on my list. Would this cause the power fade? The smoke did smell like burning oil ...
Rest of the day I kept an eye on oil + water + transmission temps, all good even on some blue trails. Oil pressure was around 30 at idle, 60-75 when RPMs were high (like accelerating on the highway on the ride home). Never had another power fade, though there were no other hills quite like that.
Anyone see something similar?
If this should go in a different sub-forum, LMK and I'll ask to have it moved.
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