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03-19-2019, 10:44 PM | #61 |
Senior Member
Join Date: Nov 2018
Location: Kankakee, Illinois
Posts: 225
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Re: installed a new 6:1 head now a tapping noise
My tapping noise was coming from the distributor hitting the Gasket. I did not expect that because the first time i did make sure to ream out the hole for the shaft. That's the part that puzzles me. The second time I got in a hurry and forgot to do that. I still herd a few light taps during a long time running. so I will inspect the distributor out further tomorrow. I did change out the upper shaft drilled for oiling. Maybe I missed something there also.
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03-20-2019, 09:54 AM | #62 |
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Join Date: May 2010
Location: Alabama
Posts: 8,099
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Re: installed a new 6:1 head now a tapping noise
Check to make sure that the rotor tip isn't striking some of the spark plug wire contacts in the distributor cap body , as the distributor shaft turns . Sometimes the plug wire contacts are too long and needs to be filed for clearance . I think that Ford listed a gap of twenty five thousants at the rotor tip . Check the gap with a feeler gauge at all four contacts . The gap needs to be the same on all four . A little more gap is OK if its not too much . I set mine at thirty five thousants for hotter spark at the spark plugs . When the spark jumps , it gets hotter . I've seen them so close that the distributor cap would slightly jump as the engine ran .
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03-20-2019, 01:54 PM | #63 |
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Join Date: Nov 2016
Location: SoCal
Posts: 877
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Re: installed a new 6:1 head now a tapping noise
Are you sure you dont have camshaft bounce? You can check for this by removing your timing pin, turning it around and if it has a rounded end hold it against the cam gear with engine at a slow idle. Apply pressure and most important know how far away that fan is from your hand. I have the tapping noise, camshaft bounce and am considering changing it out just to confirm its not a problem with the cam. I have regrind cam and new lifters to try.
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03-20-2019, 06:30 PM | #64 | |
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Join Date: Nov 2018
Location: Kankakee, Illinois
Posts: 225
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Re: installed a new 6:1 head now a tapping noise
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03-20-2019, 06:35 PM | #65 | |
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Join Date: Nov 2018
Location: Kankakee, Illinois
Posts: 225
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Re: installed a new 6:1 head now a tapping noise
Quote:
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03-20-2019, 07:32 PM | #66 |
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Join Date: Aug 2018
Posts: 2,332
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Re: installed a new 6:1 head now a tapping noise
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03-20-2019, 09:59 PM | #67 |
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Join Date: Nov 2018
Location: Kankakee, Illinois
Posts: 225
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Re: installed a new 6:1 head now a tapping noise
well I'm new to the Model A so that could be. I might just be over tightening the screw. I will check that too.
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