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03-18-2003, 09:37 AM
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#1 |
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Registered User
Join Date: Jun 2001
Location: Springfield, MO
Posts: 1,098
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K&N Problems
I have just added a K&N Filter and a chrome air cleaner assembly (used) and I pluged the vacume connection. I still hear a sucking noise.... what could this be?
There is also a hole in the bottom of the assembly off to the side. What is this for? It is probably 1 in. across. For now I guess its back to the stock.
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Nick Rodenberg 72 Cheyenne 10 V8 350/TH350 white/ochre/white/ochre, ochre/saddle interior Retired and in the dry... still runs. I now drive Red '01 Ford Focus... better MPG!!! |
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03-18-2003, 11:08 AM
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#2 |
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Registered User
 
Join Date: Oct 2002
Location: Gilroy, CA
Posts: 1,453
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Thats air going throu the filter. Both of mine if you listen you can hear that sound.
Is it really bad?
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1969 Chevy Project SWB Fleet, 20s, 5.3, t56, in the weeds. 1970 Chevy Truck cab on a 1979 Jimmy frame-8.1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s 1998 Chevy Crew Cab K3500 SAS'd with hpd60, links and swayaway coilovers. 8.1l vortec DD/towrig "I like long walks, especially when they are taken by people who annoy me. " |
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03-18-2003, 12:55 PM
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#3 |
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English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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Yep, technical name is "Induction Roar", basically what you get with every good free flowing filter or if you run an angine without a filter. It's just the air being sucked through the filter and into the carb, sounds great don't it! Think of it as your engine breathing LOL.
The hole in the filter assembly (my 9" K&N has a short pipe stub sticking out underneath I believe is for attaching your crankcase breather if you want to. I just blocked mine off with a nice shiny stainless nut bolt and two washers. You can't see it unless you look hard as it's at the back. If you don't use it you should block it off as dirty air will get sucked through the hole bypassing the filter (not good if there are a lot of flies near you, they block carb jets well!
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Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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03-18-2003, 01:03 PM
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#4 |
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Account Suspended
Join Date: Sep 2000
Posts: 3,991
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Try covering different areas with your hand to see if the noise stops.
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03-19-2003, 12:29 AM
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#5 |
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Registered User
Join Date: Jun 2001
Location: Springfield, MO
Posts: 1,098
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It isn't real bad and I listened to another guys today and he had the same sound. So I guess I am just not used to hearing it. It seems to be more apparent going slow uphill on the gravel..... whenever the engine gets pulled down.
As for the hole I cut a piece of sheet metal and screwed it onto it and used some sealer that is for high temps around the edges.
__________________
Nick Rodenberg 72 Cheyenne 10 V8 350/TH350 white/ochre/white/ochre, ochre/saddle interior Retired and in the dry... still runs. I now drive Red '01 Ford Focus... better MPG!!! |
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