I found a piece of metal in my oil pan. I was trying to describe it to someone I work with and he said it sounded like it came from inside a lifter but he doesn't know anything about the Buick engine or GM products in general. Does anyone have a picture or diagram of a lifter out of a 455? I really don't want to tear this motor apart if I don't have to just because someone accidentally dropped something in the engine at some point in history. I might be able to get a picture of the piece tomorrow. My History: I am planning on a complete rebuild in the future. I got this engine as a "good running" engine from a reputable source. I replaced the timing chain and cover, water pump, oil pan gasket, and valve cover gaskets. Thanks, MARK
If it was an internal piece from a lifter then you'd have found a pushrod in there as well. You could always pull the intake just to get a quick look at the lifter bores, but its doubtful this was the problem.
I found an old post on this board with some pictures of TA lifters taken apart. I don't believe it came from a lifter now. I already had the valve covers off and moved the pushrods by hand to see if there was extra play. There was none. I'll be sure to get a picture tomorrow. I'll also pull the intake to be sure. MARK
Hmmm, smaller around than a dime, about an eighth of an inch thick, silver in color, concaved on one side, and a small pin hole going through the center of it. Confused? It really doesn't look like a "broken" peice of metal. I didn't get a chance to work on the car since it's up in my mom/dad's garage 30 minutes away. Hopefully Thurs. or Fri. MARK
Well... It says my pictures are uploading but they're not showing up so I deleted my new posts. I took pictures of it next to a dime. You would probably figure out what it is or if it's not suppose to be in there. Other than that, I found a bent push rod but everything else looks very good. The cam shaft almost looks new. Are the 350 push rods the same? MARK
Not good... You should find a lock ring (spring) about the same size, maybe other little internal lifter parts also. I'd want to account for all, and the only way I can think of how to do it is to take a good lifter apart. Then take the bent rod and bad lifter out. Take the bad lifter apart and compare it to the good lifter, every piece. Then reassemble good lifter (and measure the straight pushrod too). The good lifter MUST go back in the same location, or bore. You must replace the bad lifter, and hope it does NOT flatten the lobe on the cam, use good assembly lube on both the cam lobe and lifter bottom. I would search for any lifter parts not accounted for, but you do have a screen on the oil pickup tube. I just don't like the idea of any metal pieces in the oil.o No:
The lifter looked fine so maybe it is from an old broken one. I couldn't find any other metal in the motor. I have the intake, valve covers, timing cover, and oil pan off. And the push rod has a slight bend in it. It could still spin but would wobble. I posted in the parts wanted section for a single push rod. Someone asked if he had 455 heads on a 430, would those push rods work for me? MARK
Oh, you're prolly Ok You keep bouncing back and forth between 455 & 350? What yr and size engine is this?o No:
I never said it was a 350, I only asked if 1. 350 lifters were the same (as 455s) and 2. if 350 push rods were the same (as 455s). Sorry for the confusion. This engine came out of a 1972 GS455. MARK PS picture still won't load.
Ok You need a 455 pushrod with the oil hole thru the center, 70 and up will work just fine. You can order one from TA or Poston, prolly about $10 if no one has a spare sitting around...
