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Not sure if this is where i should post this or not, if it needs to be moved, let me know...im new to this site.
Heres the story, i had a friend call me and tell me that he "Blew" his engine, he said he was driving home and he heard some ticking so he got home and he parked it in the garage. He went out the next morning to start it and the engine wouldnt move, it was froze! He asked me if i wanted to buy it, long story short, i got the 2005 Silverado Ext cab (4 doors) for less than $600. I figured maybe i could part it out or something. I decided to check the engine before doing anything with it and i was manually able to turn the engine over so i metered the battery which was at 1.01 volts...i thought he killed the battery trying to start it...NOPE..he left the lights on and it killed the battery, i put a new one in it and it started up..heres where i need your help.
There was some clacking/ticking....but it all sounded like it was up top. I pulled the coil packs, valve covers, rockers and pushrods and inspected each one. ALL of the pushrods were in perfect shape where they made contact with the lifters, but the tops of several of them were worn where they met the rockers and the rocker was worn as well. Also the needle bearings (at least i believe they have needle bearings) in the rockers were worn. All of this would have increased the gaps and opened things up causing chatter/ticking that i heard. All of the worn pushrods seemed to have some sludge in them and didnt seem to be allowing oil to get up top. I went ahead and ordered a full set of rockers and push rods for the engine ($220). Im going to put it all in and see what i get with this "Fix"...what are my chances that this will solve the issue? The truck ran great, no check engine lights, no codes thrown, etc.. just the noise. My concern is ...if the lifters are bad, then i have to tear down the engine and replace those...and possibly a cam, timing chain, etc.. and thats beyond my expertise and my wallet when it comes to paying someone else to fix it ($3000+ im guessing) I figured if this didnt solve it, my total investment in this truck was only about $800..which i think i can re-coop easily if this doesnt solve the problem.
2005 LS model 5.3L 160K miles.
Appreciate your help and advice.
Heres the story, i had a friend call me and tell me that he "Blew" his engine, he said he was driving home and he heard some ticking so he got home and he parked it in the garage. He went out the next morning to start it and the engine wouldnt move, it was froze! He asked me if i wanted to buy it, long story short, i got the 2005 Silverado Ext cab (4 doors) for less than $600. I figured maybe i could part it out or something. I decided to check the engine before doing anything with it and i was manually able to turn the engine over so i metered the battery which was at 1.01 volts...i thought he killed the battery trying to start it...NOPE..he left the lights on and it killed the battery, i put a new one in it and it started up..heres where i need your help.
There was some clacking/ticking....but it all sounded like it was up top. I pulled the coil packs, valve covers, rockers and pushrods and inspected each one. ALL of the pushrods were in perfect shape where they made contact with the lifters, but the tops of several of them were worn where they met the rockers and the rocker was worn as well. Also the needle bearings (at least i believe they have needle bearings) in the rockers were worn. All of this would have increased the gaps and opened things up causing chatter/ticking that i heard. All of the worn pushrods seemed to have some sludge in them and didnt seem to be allowing oil to get up top. I went ahead and ordered a full set of rockers and push rods for the engine ($220). Im going to put it all in and see what i get with this "Fix"...what are my chances that this will solve the issue? The truck ran great, no check engine lights, no codes thrown, etc.. just the noise. My concern is ...if the lifters are bad, then i have to tear down the engine and replace those...and possibly a cam, timing chain, etc.. and thats beyond my expertise and my wallet when it comes to paying someone else to fix it ($3000+ im guessing) I figured if this didnt solve it, my total investment in this truck was only about $800..which i think i can re-coop easily if this doesnt solve the problem.
2005 LS model 5.3L 160K miles.
Appreciate your help and advice.
