My father was driving my 78 superliner yesterday with an endt 676, 10 minutes after he left the pit loaded, he said the exhaust sound changed and there was slightly less power, he though he had an exhaust leak, but when he pulled in our yard I could hear the difference in sound, almost sounds like one cylinder dynatard was on, parked it at our shop overnight, started it this morning and same sound cold, pulled the valve covers to check and every thing looks right, everything is tight, no cracked springs, started it and everything is moving(not a wiped cam). Leaning towards cracked valve or bad injector, my question is what is the best way to check the injectors before is start pulling the motor apart, thanks (last over head was ran about 8 months ago, truck runs about 3-4 days a week)
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Max.superliner
My father was driving my 78 superliner yesterday with an endt 676, 10 minutes after he left the pit loaded, he said the exhaust sound changed and there was slightly less power, he though he had an exhaust leak, but when he pulled in our yard I could hear the difference in sound, almost sounds like one cylinder dynatard was on, parked it at our shop overnight, started it this morning and same sound cold, pulled the valve covers to check and every thing looks right, everything is tight, no cracked springs, started it and everything is moving(not a wiped cam). Leaning towards cracked valve or bad injector, my question is what is the best way to check the injectors before is start pulling the motor apart, thanks (last over head was ran about 8 months ago, truck runs about 3-4 days a week)
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mechohaulic
not attempt to pull cam;; you can do it . the little train said "I think I can; I think I can:: YOU CAN DO IT. it's tuesday how did you do???
br549
can you hear a noise thru the air cleaner, sounds like you might have a lifter head come off. Watching the valves with the motor might not show up. I would go thru the valve adjustment and see if
Joey Mack
I'm not as good on these as I want to be, but the few that I did, I would bring the #1 piston to TDC and make sure im up on #1 by looking at the #2 exh. rocker arm. it will be 'rocked'.. then I check
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