KNocking...please help
#1
KNocking...please help
I recently purchased a 86 z28 camaro. the kid before me installed a rebuilt 350. runs starts and everything but there seems to be a knocking sound at idle and during acceleration. He said if i get it tuned and timed right it should go away. i was wondering if hes right or pulling my leg and have a bigger problem. It is not a stock motor, has comp cam, 305 heads, holley carb edelbrock headers. msd ignition. it used to be a 305. any help would be apprecciated.
Thanks
Justin
Thanks
Justin
#2
Junior Member
Joined: Jul 2008
Posts: 62
Likes: 0
From: Cincinnati
Car: 85 335IROC Camaro
Engine: 335 tune port
Transmission: 700r4 Stage 2
Axle/Gears: 3:73
Re: KNocking...please help
if your engine sounds like this then you are ****ed.
in some cases if you hear a knocking and immediately pull over get towed and start stripping the car you can salvage, but in most cases your ****ed.
http://www.youtube.com/watch?v=lGuZxwXeKWo
in some cases if you hear a knocking and immediately pull over get towed and start stripping the car you can salvage, but in most cases your ****ed.
http://www.youtube.com/watch?v=lGuZxwXeKWo
#3
Re: KNocking...please help
its not even close to that, lol but i just got a oil change and it got a lil loader. i know it def needs to be timed right and tuned. i can feel that when i drive it. its running real rich to would that have anything to do with it as well
#4
Junior Member
Joined: Jul 2008
Posts: 62
Likes: 0
From: Cincinnati
Car: 85 335IROC Camaro
Engine: 335 tune port
Transmission: 700r4 Stage 2
Axle/Gears: 3:73
Re: KNocking...please help
well it depends specifically what does it sound like. more of a ticking or more of a metal on metal noice. you may have bent a push rod and if you drive around like that you can crack your head. if it's a ticking lot's of things could be the cause of that. what does it actually sound like cause that youtube link is what real knocking sounds like.
#6
Junior Member
Joined: Jul 2008
Posts: 62
Likes: 0
From: Cincinnati
Car: 85 335IROC Camaro
Engine: 335 tune port
Transmission: 700r4 Stage 2
Axle/Gears: 3:73
Re: KNocking...please help
yeah sounds like you've thrown a rod, which in MOST cases is not worth fixing, i mean i'm talking complete rebuild and when you get down to the block it might not even be worth rebuilding. so I hope you don't own that car yet, because it sounds like someone is trying to pull a fast one on you. sorry =/
i'm trying to figure out an idling problem right now. it sucks.
i'm trying to figure out an idling problem right now. it sucks.
#7
Re: KNocking...please help
well unfortunetly i do own it i bought it for 4000, however the knocking wasnt there when i went to look at it. the bodys nice near perfect so it sort of still worth it if i can find something to swap. i am goign to try and put a vid up tom with the knock so let me know when u hear it
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#8
Junior Member
Joined: Jul 2008
Posts: 62
Likes: 0
From: Cincinnati
Car: 85 335IROC Camaro
Engine: 335 tune port
Transmission: 700r4 Stage 2
Axle/Gears: 3:73
Re: KNocking...please help
i'd be more than happy to. man if the bodies good then keep it spend the winter building a motor and come out next season haulin' ***. if it turns out mine is junk that's what i am doing.
but don't get your hopes down yet let some people hear it i'll listen and it may be something realy simple. if your egr is improperly done it'll cause a pretty loud ticking but not in the lines of a knock but it's just one of many examples.
so don't get down yet.
but don't get your hopes down yet let some people hear it i'll listen and it may be something realy simple. if your egr is improperly done it'll cause a pretty loud ticking but not in the lines of a knock but it's just one of many examples.
so don't get down yet.
#10
Junior Member
Joined: Jul 2008
Posts: 62
Likes: 0
From: Cincinnati
Car: 85 335IROC Camaro
Engine: 335 tune port
Transmission: 700r4 Stage 2
Axle/Gears: 3:73
Re: KNocking...please help
yeah dude don't get down yet, there's a good chance i'm just missjudging it by the way you describe it. so put the video up tomorrow.