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Old Jan 31, 2013 | 12:29 AM
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Exclamation knocking sound

i just put my trans am back together and at first the engine was pretty quite but today it started making a knocking sound i think it may be coming from the rocker arms im not sure, the shop installed ultra gold rocker arms 1.82 ratio. the car runs good oil pressure is normal 40 idle and plus when driving, no service engine lights or anything, i read on here in some posts that the noise is normal some piston slap, but idk, i have a video but i havent been able to upload it, ima keep trying tho.
any one can help, thanks.
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Old Jan 31, 2013 | 01:03 AM
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I wouldn't drive it until the rockers are checked......since they were just installed....it's a pretty good chance that's the problem. Have them checked......at least before you drive it hard.

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Old Jan 31, 2013 | 02:05 AM
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https://mail.google.com/mail/?ui=2&i...586117632-1&zw


here is a clip hope you can open it and give me some ideas of whats goin on.
thanks
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Old Jan 31, 2013 | 02:17 PM
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Originally Posted by 99_TRANS_AM_LS1
https://mail.google.com/mail/?ui=2&i...586117632-1&zw


here is a clip hope you can open it and give me some ideas of whats goin on.
thanks
The link does not work. Try to upload the video to YouTube or create a free account at photobucket.com and post the video there. You can then copy and paste the link here for us to view.
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Old Jan 31, 2013 | 04:04 PM
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Smile here is the link this one does work.

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Old Jan 31, 2013 | 06:59 PM
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i found two fucken bend pushrods, damn it!!! i just ordered me a set of comp cams pushrods. will be here monday!
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Old Jan 31, 2013 | 10:54 PM
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Did you verify ptv with those new higher ratio rockers?
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Old Jan 31, 2013 | 11:01 PM
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Dont just throw pushrods in it, not saying thats what you were going to do, but you obviously have a clearance issue somewhere, and will NEED to check ptv clearance and see what is going on and why the pushrods bent in the first place... good luck!


Also, if it were me i would tear it all back down and make sure that none of the valves made contact with the pistons
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Old Feb 1, 2013 | 12:15 AM
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i took he heads in to get polished and they assembled them in at the shop so all clearance is good, they also put it together and balanced the long block. the only thing i didnt put new in he engine were those pushrods because they were in good shape, so i think they just gave up, i found two bend rods, one was bad but the second was just a bit bend all the other ones are still straight, so just ordered a new set of comp cams pushrods that were recommended to work with the ultra gold rocker arms.
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Old Feb 1, 2013 | 12:17 AM
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if anyone can explain this to me. but i drove the car for two days with no issues until today. i imagine if they were any clearance issues it wold had problems since he first day right?
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Old Feb 1, 2013 | 07:57 AM
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I wouldn't drive it.
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Old Feb 1, 2013 | 09:44 AM
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I dont think pushrods just randomly "give up", and unless ptv was checked there is NO WAY to be sure that there was no contact. Something caused those 2 pushrods to bend.
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