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What is that noise?! |
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David F 
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Joined: June-11-2004 Location: United States Status: Offline Points: 1770 |
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 Topic: What is that noise?!Posted: August-07-2006 at 4:25pm |
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Could be a mis adjusted rocker arm, piston slap, bad lifter, exhaust leak.
Disconnect the plug wire from offending cylinder to rule out piston slap. If noise goes away, then you have piston slap. |
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Atmspltr
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Joined: May-04-2005 Location: United States Status: Offline Points: 170 |
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Posted: August-07-2006 at 4:23pm |
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It could be a sticking hydraulic lifter. Try some Rislone oil additive...it does a good job of freeing up stuck lifters.
RB |
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Bob's2001
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Joined: March-28-2005 Location: Lake Jackson TX Status: Offline Points: 241 |
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Posted: August-07-2006 at 12:31am |
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Could be an exhaust leak.
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Bob Ed
83 2001 |
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GottaSki
Grand Poobah 
Joined: April-21-2005 Location: NE CT Status: Offline Points: 3363 |
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Posted: August-06-2006 at 5:52pm |
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If it goes away when you close the engine cover, and you did the inspection, and all the rockers move the same amount, Fugetabout*t.
By '82 boat ticks since I got it in '96... waiting for it to frag so I can repower still waiting... |
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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Kovatz
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Joined: August-06-2006 Location: United States Status: Offline Points: 1 |
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Posted: August-06-2006 at 5:25pm |
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I have had an 81 nautique for 30 days and have been working on it since then. The claim was that it has been winterized and that it should fire right up. I was able to see it running on the ramp but not well enough to take to the lake with much faith. Its timing was way off and we were getting misfires coming out the top of carb. Replaced the harmonic balancer and condensor, cleaned the points and was able to time it and get it running smooth. I had feared fuel issues but it will idle with ease. Great, off to the lake....nope. I have a nasty ticking noise that sounds like it is coming from 1 or 2. An inspection of the valve springs, rocker arms and push rods show that all is well in my novice opinion. I am afraid of what that leaves but I thought I would throw it to the forum and see you all thought. Thanks in advance for any help. I took a video and will add to this topic a link for the experts to review. Thanks in advance
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