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Old 12-04-2013, 11:51 PM
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86 C10 305 Tick noise

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Last edited by poncho62; 12-05-2013 at 05:05 AM. Reason: duplicate
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Old 12-04-2013, 11:54 PM
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86 C10 305 Tick Issue HELP!

Hey I'm new to HotRodders and I Have a 86 C10 that I'm having some issues with. When i start the car and it is idling i can barely hear the tick. but once iget to going around 20mph i can hear the tick u see in the video below any help or suggestions? The truck does have floe masters on it.. Is it an Exhaust Leak, Valves need tighted or detonation? The rattle u hear in the video between depressing the pedal is just the window.. The tick I'm referring to is the one u hear while I'm accelerating!! Thanks HOT Rodders!!!!


Last edited by 68NovaSS; 12-05-2013 at 01:18 AM.
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Old 12-05-2013, 01:20 AM
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I put the video in your post, directions for doing so are here:

How to post pictures and videos on Hotrodders.com

I can hear the window rattle, but can't hear any tick, maybe it's just me...
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Old 12-05-2013, 02:19 AM
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It's more of like flutter.. Listen closely every time I press the gas.. It's fluttering idk.. Maybe I can get a better video of it
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Old 12-05-2013, 04:45 AM
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sounds like a rocker arm could be a collapsed lifter, cam lobe going south, a stud pulling out, or a broken valve spring.. but didn't seem to speed up when you're on the gas.. it might be a exhaust heat shield .
get a piece of vacuum hose and put one end to your ear and the other fish around the engine bay.. the hose will make everything loader and you can pin point where it's coming from.. last time I had a noice like that it was loose flex plate bolts/cracked flexplate, use the hose to track it down, just keep hose and your arms out of the fan and belts..
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Old 12-05-2013, 04:49 AM
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Quote:
Originally Posted by Touch44 View Post
It's more of like flutter.. Listen closely every time I press the gas.. It's fluttering idk.. Maybe I can get a better video of it
don't bother with another vid get a piece of hose, even if it's garden hose..
and fish around the engine bay.. once you have the noise narrowed down to an area, then come back..
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Old 12-05-2013, 03:07 PM
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Pretty Sure its coming from under the right valve cover..
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Old 12-05-2013, 04:03 PM
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Open the valve cover and look for a loose rocker arm (could be the nut backed off or the stud is pulling out of the head).
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Old 12-09-2013, 02:20 AM
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Do I tighten it while the engine is running until the sound goes away?? Or how should I do it?
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Old 12-09-2013, 10:23 PM
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OK People i messed up instead of tightening rocker arms while the engine is running i tighter them while the motor was off now it won't start!

i have been researching, i know i was supposed to do each valve at TDC and then at zero lash tighten rocker arm 1/2 turn. then from the number cylinder i go to number 8 cylinder. and continue on following the firing order adjusting the valves.. is this correct? I'm having trouble understanding the TDC concept i can barley see my timing mark but i see no numbers.. is the arrow supposed to match up with a notch? Somebody help a novice out i know a little just trying to learn thank u hotrodders..
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Old 12-09-2013, 10:47 PM
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Quote:
Originally Posted by Touch44 View Post
OK People i messed up instead of tightening rocker arms while the engine is running i tighter them while the motor was off now it won't start!

i have been researching, i know i was supposed to do each valve at TDC and then at zero lash tighten rocker arm 1/2 turn. then from the number cylinder i go to number 8 cylinder. and continue on following the firing order adjusting the valves.. is this correct? I'm having trouble understanding the TDC concept i can barley see my timing mark but i see no numbers.. is the arrow supposed to match up with a notch? Somebody help a novice out i know a little just trying to learn thank u hotrodders..
Readjust valves per this tutorial, then find the culprit with a piece of garden hose like gearheadslife suggested.....
http://www.crankshaftcoalition.com/w...stment_SBC/BBC

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Old 12-26-2013, 02:12 PM
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That is a the best description of valve adjustment that I've seen.. I only have the driver side valve cover removed.. I was wondering could I back the valves off that I tighten then start the car and tighten with car running??
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Old 12-26-2013, 02:19 PM
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You can't back them off very much or you won't actuate the valves, not to mention it's pretty frantic for someone not used to adjusting valves, especially while running, I'm talking oil bath for you and everything around you and the engine bay. Not as bad if you have the deflector clips, but still not pretty!

Some have taken spare valve covers and cut the tops off, which helps, but it won't stop the entire mess!
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Old 12-26-2013, 03:48 PM
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Anyone messing with a small block or big block Chevy should go to the boneyard and get an extra set of used valve covers. Measure the O.D. of your socket that you use to turn the rocker nut and use a holesaw that is closest to that size to drill 8 holes per cover so that you can adjust the valves with the cover on. Duct tape on the other 7 holes, while you adjust the one you're working on, will prevent any oil from escaping. Done with that valve, cover the hole with another piece of duct tape and uncover the next candidate in line. I used to keep a set of each, SB and BB, hanging on the wall in the garage.
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