 Inside my air cleaner lid, Does anyone know what this is? |
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| nivekdodge |
 Sep 8 2025, 11:15 AM
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Member  Group: Members Posts: 321 Joined: 28-August 21 From: Pittsburgh Pa Member No.: 25,860 Region Association: MidAtlantic Region 
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Hi
This is the bottom of my air cleaner lid. Anyone else get this and where’s it from? Do I need to fix it? Kevin Attached thumbnail(s) 
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| PlaysWithCars |
Sep 14 2025, 06:41 PM
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Senior Member Group: Members Posts: 537 Joined: 9-November 03 From: Southeast of Seattle Member No.: 1,323 Region Association: Pacific Northwest
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Could it be reversion back through the carburetors? (small pressure waves coming back up the intake tract from exhaust pressure during overlap and/or rapid valve closure). More likely to occur on motors with an aggressive cam shaft and driving conditions where the throttle plate is open at relatively low engine speed.
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| nivekdodge |
Sep 14 2025, 07:15 PM
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#3
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Member Group: Members Posts: 321 Joined: 28-August 21 From: Pittsburgh Pa Member No.: 25,860 Region Association: MidAtlantic Region
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QUOTE(PlaysWithCars @ Sep 14 2025, 08:41 PM)  Could it be reversion back through the carburetors? (small pressure waves coming back up the intake tract from exhaust pressure during overlap and/or rapid valve closure). More likely to occur on motors with an aggressive cam shaft and driving conditions where the throttle plate is open at relatively low engine speed. It may be related to some of that. I have no idea what kind of cam is in there but it doesn't lope... but if we take off imediately it syutters a little till igets warm when the revs are low. so; Saturday l let it idle for a good 10 minutes before leaving. for a 35 mile ride. Some oil and bronze but not a lot. Sunday we left immediately and it stuttered on the way out of the plan, 23 mile ride and the build up was cosiderably more than Saturday But what does that mean? Kevin. |
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Posts in this topic
nivekdodge Inside my air cleaner lid Sep 8 2025, 11:15 AM
dr914@autoatlanta.com condensation blow by from not running the car to o... Sep 8 2025, 11:22 AM nivekdodge Thank's George
I'm sorry, it's not p... Sep 8 2025, 11:54 AM porschetub
Hi
This is the bottom of my air cleaner lid.... Sep 8 2025, 02:08 PM nivekdodge They’re chrome but no burn marks Sep 8 2025, 02:51 PM mlindner Do you have some backfiring go on. I get a little ... Sep 8 2025, 03:06 PM nivekdodge It doesn’t take that long. This is two afternoon... Sep 8 2025, 04:31 PM Puebloswatcop Have you adjusted the valves lately? I would chec... Sep 9 2025, 07:33 AM infraredcalvin This looks like it’s been on fire… I agree wit... Sep 9 2025, 08:05 AM nivekdodge No just a shadow
Kevin Sep 9 2025, 02:32 PM
fixer34 Did you say it is 'oil and bronze', as in ... Sep 14 2025, 08:48 PM |
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