1998 Cheyenne 2500
#1
CF Beginner
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Join Date: Mar 2021
Location: Hannibal Missouri
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1998 Cheyenne 2500
I adjusted the valves 3 days ago. The first day was nice, no lifter tick, more power. The 2nd day i started to hear a bit of what i thought was a knock. My lifters never ticked at idle or low rpm previously. But if i got on it at all they would almost sing.
Now its doing nearly the same thing.... At low rpm and idle the truck sounds great. Get on it even a little bit its sounds like frogs on a pond at dusk. All high pitched and chirpy. But it still runs good, i havent lost any power.
Im thinkin its a bent or a burnt valve but at this point i need some outside assistance.
Now its doing nearly the same thing.... At low rpm and idle the truck sounds great. Get on it even a little bit its sounds like frogs on a pond at dusk. All high pitched and chirpy. But it still runs good, i havent lost any power.
Im thinkin its a bent or a burnt valve but at this point i need some outside assistance.
#2
CF Monarch
I adjusted the valves 3 days ago. The first day was nice, no lifter tick, more power. The 2nd day i started to hear a bit of what i thought was a knock. My lifters never ticked at idle or low rpm previously. But if i got on it at all they would almost sing.
Now its doing nearly the same thing.... At low rpm and idle the truck sounds great. Get on it even a little bit its sounds like frogs on a pond at dusk. All high pitched and chirpy. But it still runs good, i havent lost any power.
Im thinkin its a bent or a burnt valve but at this point i need some outside assistance.
Now its doing nearly the same thing.... At low rpm and idle the truck sounds great. Get on it even a little bit its sounds like frogs on a pond at dusk. All high pitched and chirpy. But it still runs good, i havent lost any power.
Im thinkin its a bent or a burnt valve but at this point i need some outside assistance.
#3
CF Beginner
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Location: Hannibal Missouri
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I quarter turned the crank 8 times. Each turn i would spin the rod as i took the lash out. After the 8th turn and adjustments, i went an additional 3/4 turn.
Before i started anything i loosened all the rocker arms, took all tension whatsoever out and started from scratch.
Before i started anything i loosened all the rocker arms, took all tension whatsoever out and started from scratch.
#4
CF Monarch
Here is another way to adjust the valves, while the motor running. A 3/4 turn on the rocker stud nut after all the slack is out of the rocker/valve rod. I've heard of people going a full turn, but I never had to do so.
#6
There are little clips made to prevent oil from being shot all over the place from the oil hole on the rockers. This allows you to check for a noisy lifter with the engine idling without getting an oil bath.
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ravenwolf69 (December 27th, 2021)
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