sand man

what does this sounds like ?
bent push rod , lifter fail ? or did I spin a bearing ? I have been driving with this sound for 500 miles + no problems but the sound


I have a bad idle tunning it doesnt do this all the time

sand man

note : I did the compression test and all cylinders read 110-120 so I dont think its a valve problem

2000chevysilverado

iTrader: (11)

That would be a bearing man, does it want to die when taking a corner at all or driving around or feel like has no power when driving

AKlowriderZ71

iTrader: (22)

Thats piston speed, so I'd say it's a piston or rod bearing. If its lasted 500 miles without seizing up or getting way worse, it's probably not a rod bearing.

sand man

no it doesnt at all drives the same in every aspect even shifting at 6800rpms in second and reving to 6400 in 3rd and pulling in forth to 140mph and the truck has the same power befor the ticking sounds

sand man

sounds the same sence it came out, more than a week ago

1FastBrick

iTrader: (17)

Kind of sounds like a rod bearing.

What's the story on the engine??? I am wondering if you spun a cam bearing. Have you changed the oil to inspect for particles???

AKlowriderZ71

iTrader: (22)

Piston.

Teardown time. Do it before you scar a cylinder wall.

AKlowriderZ71

iTrader: (22)

Rod bearing would have died long ago. Once they loose clearance & spin, it's a very short time before they get really really bad and/or seize.

sand man

the story goes like this : started to play with the tune , added some advance on the spark after we got the AFR where we want it , a spark plug broke its tip , checked all spark plugs, only number 1 was bad, every plug else was ok , changed them any way
did a compression test all pistons read 110-120psi constant, no fast presure drop in all cyl's, all have the same rate

started the motor , the sound never changed sence the sound came out a 9 days ago