Bent push rods question
12-04-2003, 11:49 PM
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Bent push rods question Hi every one. Let me tell you I have bought a 99 TA and have found a lot of helpful articles in this forum and wanted to thank every one for the info. But any ways on to my problem. I was racing a Z28 miss shifted and red lined it in neutral and just got right back on it and won the race. But right after that I noticed a clacking sound. I am not much of a mechanic so I took it to the dealership. They said I had cracked both head and bent several push rods. So I was like ok what do you suggest me to do. They wanted like some 1300 dollars to tear down the engine and god know how much to put it together just to look at the rest of the engine to make sure if it was ok. Any ways I figured I could do the work with a little help from internet. When I looked at the heads they looked fine but the push rod holes are egg shaped like 3 out of the 16. The heads where not cracked and if I understand right the rods never should touch the sides any ways unless bent. So my question is the metal shavings will they get in my engines and mess it up or they’re so small they won't mater. The push rod holes were maybe 1/4 inch warped at most and only 3 of them where like this. I want to just stick 16 new rods in and try it out. What do you all think I should do? Thanks for the help in advance.
12-05-2003, 12:05 AM
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how did the dealership determine the head was cracked? i highly doubt you cracked it, bent pushrods yes and maybe a bent vavle but i've never heard of crack/damaged heads from a miss shift. where are the metal shavings, just on top of the head in the spring area? the bottom end and cam and lifter and any other related engine component should not have been damaged. i'd do a compression and leak down test, and replace the pushrods with new ones and then go from there.
12-05-2003, 12:21 AM
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Originally Posted by jrp
how did the dealership determine the head was cracked? i highly doubt you cracked it, bent pushrods yes and maybe a bent vavle but i've never heard of crack/damaged heads from a miss shift. where are the metal shavings, just on top of the head in the spring area? the bottom end and cam and lifter and any other related engine component should not have been damaged. i'd do a compression and leak down test, and replace the pushrods with new ones and then go from there.
12-05-2003, 09:38 PM
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I had the same thing on my car. Only bent 1 though, but it made the hole egg-shaped. The pushrod broke a week after. I installed new pushrods and did a compression check. All cylinders within 5% of eachother so I got lucky 
. So I bought a hotcam that came with better springs so an over rev will be less likely to damage the valves with the new hardened pushrods.
Change your oil and do a compression check with new pushrods installed. And I would never go back to that dealership.
. So I bought a hotcam that came with better springs so an over rev will be less likely to damage the valves with the new hardened pushrods. Change your oil and do a compression check with new pushrods installed. And I would never go back to that dealership.
