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Old 06-16-2012, 02:41 PM   #1
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Sleeper

I have a 1986 with a 302. She has a tap happening but can't pinpoint it. Rods aren't bent and I put a new rocker arm on. Any input?
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Old 06-16-2012, 02:45 PM   #2
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Rocker adjusted properly?
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Old 06-16-2012, 02:48 PM   #3
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I believe so. I turn the crank until the valves are down and tighten by torque specs.
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Old 06-16-2012, 02:58 PM   #4
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Ok does it tick faster when you rev the engine..Maybe exhaust leak
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Old 06-16-2012, 03:00 PM   #5
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I Rev the enging and it will go away for a couple seconds when I hit 2500-3000 rpms. The hits idle and starts again. I have new lifters coming, and thinking about getting heads cuz I was thinking a bent valve
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Old 06-16-2012, 09:43 PM   #6
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It's possible but can't say for sure. I don't want you to spend money that you don't need to because heads are not cheap.. I finnaly save some money and bought me the trickflow street kit which I have to say is very nice
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Old 06-16-2012, 10:04 PM   #7
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Vacuum Gage time
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Old 06-17-2012, 01:40 PM   #8
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She's carburated
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Old 06-17-2012, 08:39 PM   #9
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This is one of my favorite tools in the box.

http://www.autozone.com/autozone/acc...scope/_/N-26gd
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Old 06-18-2012, 10:48 AM   #10
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Quote:
Originally Posted by dreamstang
This is one of my favorite tools in the box.

http://www.autozone.com/autozone/acc...scope/_/N-26gd
I agree every tool box should have one
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Old 06-18-2012, 06:52 PM   #11
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Hook a vac gauge to any intake vac port and run the engine the needle should stay around 12 inch or more and be still not jumpy this is an easy way to check basic health of your engine
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Old 06-19-2012, 02:52 AM   #12
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Re: Sleeper

Quote:
Originally Posted by Jimmygun911 View Post
I Rev the enging and it will go away for a couple seconds when I hit 2500-3000 rpms. The hits idle and starts again. I have new lifters coming, and thinking about getting heads cuz I was thinking a bent valve
If you have a bent valve, then you may be beating the crap out of the top of your piston(s) and the valve seat and head.


If it goes away when you rev it a bit, then I would suspect that you have a lifter that is collapsing at lower oil pressure.
Since you are replacing them, you will be able to see if that was the problem.
You might want to try and get a look into the cylinders and see if you can see any dings in the tops of the pistons. If any local mechanics have a borescope, that would make doing that much easier.
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