foresterdj
Full Access Member
Since my recent work, installing Baby Moose and BB injectors, I have only made short 10-20 mile trips. Back and forth to town, over the North Hill as a test, etc., and truck has been running great, power, responce, a little black smoke if I really stomp on it, but driving easy no visible exhaust smoke. Timing was meter set at 8.9* BTDC. I run only straight diesel with addative.
Then Friday I took off for a longer trip and the truck would blow intense long duration heavy black smoke under almost any acceleration. If I backed off to the point that the smoke stopped, I would loose speed, and under any load (truck basically empty) black just shot out of the exhaust. I have changed nothing since previous runs, so this behavior is a complete surprise, I turned it for home after about 15 miles and took the car.
RPM and speed relations were not any different. Truck was shifting at its normal RPMs.
Exhaust temps were higher than normal, pushing 1000* -1050* even in third (OD off) going up North Hill, when in third on test runs I stayed more like 900* holding 60-65 mph
At idle, idle RPM and sound seem normal, and no smoke at idle
Significant lack of responsiveness to added throttle, instead of a brief smoke and away-you-go, it was more like a long drawn out acceleration, blowing smoke like a frieght train.
My only thought is that engine is suddenly starved for air, so tomorrow after work I will check air cleaner and intake to see if a darn mouse or something decided to build a nest there. Other than that, I am wide open for suggestions on what to check
Then Friday I took off for a longer trip and the truck would blow intense long duration heavy black smoke under almost any acceleration. If I backed off to the point that the smoke stopped, I would loose speed, and under any load (truck basically empty) black just shot out of the exhaust. I have changed nothing since previous runs, so this behavior is a complete surprise, I turned it for home after about 15 miles and took the car.
RPM and speed relations were not any different. Truck was shifting at its normal RPMs.
Exhaust temps were higher than normal, pushing 1000* -1050* even in third (OD off) going up North Hill, when in third on test runs I stayed more like 900* holding 60-65 mph
At idle, idle RPM and sound seem normal, and no smoke at idle
Significant lack of responsiveness to added throttle, instead of a brief smoke and away-you-go, it was more like a long drawn out acceleration, blowing smoke like a frieght train.
My only thought is that engine is suddenly starved for air, so tomorrow after work I will check air cleaner and intake to see if a darn mouse or something decided to build a nest there. Other than that, I am wide open for suggestions on what to check