How audible is a collapsed lifter??
How audible is a collapsed lifter?? Today I had pulled off my lid, MAF etc. to clean the MAF and check for proper sealing of the bellow's etc to figure out why I was getting a semi choppy idle at startup. Well while I was under the hood I heard a weird sound, I dont think "ticking" is the right word, more like a rattling sound, the weird part is it would only happen like every 5 seconds, sometimes 10, etc. This doesnt sound like a collapsed lifter to me but I've never heard one before. I pulled my oil cap off and put my ear to it, obviously I could hear quite a bit, but I think thats just valvetrain clatter. Putting my ear upto the passenger side head it seemed to make the same type of noise as the driver side. My valve train is pretty loud for the baby cam I have, could my Crane Duals be part of the reason? Is this anything to worry about?
well, I had a lifter failure, not collapsed but the roller broke off and it didn't make much noise if at all. It did destroy the motor though with all the metal in it. Pull the covers and see if the springs, rockers and push rods look normal. Don't drive it until you check it out.
Originally Posted by mcamp001
well, I had a lifter failure, not collapsed but the roller broke off and it didn't make much noise if at all. It did destroy the motor though with all the metal in it. Pull the covers and see if the springs, rockers and push rods look normal. Don't drive it until you check it out.
This is what I ended up with. The last picture is the only one that really looks weird, the very end has that distinct coloring in with clear seperation to the rest of the push rod. When I pulled the first one, the discoloration all over it freaked me out, but it seems its just oil or something, I remember them being like that when I did my cam on the old motor 30k ago. Do these look okay??? All the rocker arms seem fine, they ove fine, and the springs all looked good when I was unscrewing the rocker arms. I'd like to know ASAP as its almost 1 am here and I still have to get out to a 24/7 autozone and buy a TQ wrench (I don't usually work on my car at this house so I have no tools) and make it to work by 8:30 in the morning. Any input would be appreciated! Thanks
EDIT: I also rolled all the pushrods, checked the ends, and where they press against on the rocker arm, no strange marks or anything and there are no scratches on them that dig into the material itself, just sections where the caked on oil is and is not.
