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oval_and_out
Samba Member
Joined: January 10, 2006
Posts: 5
Location: England
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 Posted: Thu Jul 19, 2007 6:23 am Post subject: Please help. Valve noise??? |
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| One valve on #3 piston is making sucking and blowing noises which sound like a footpump blowing up a lilo. Does anyone know what this is and how serious a problem??? |
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tkelley
Samba Member
Joined: January 10, 2006
Posts: 1597
Location: Where Pterodactyls crash and burn...
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| Posted: Thu Jul 19, 2007 6:30 am Post subject: |
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| sucking and blowing noises which sound like a footpump blowing up a lilo |
Dildo? 
How can you tell it's coming from the valve? Does the sound
seem like it's coming from the head? Did you do a valve adjustment?
We really need more info.
Tom |
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 76902
Location: Sneaking up behind you
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| Posted: Thu Jul 19, 2007 6:38 am Post subject: |
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Sounds like the spark plug was blown out.
_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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oval_and_out
Samba Member
Joined: January 10, 2006
Posts: 5
Location: England
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| Posted: Thu Jul 19, 2007 6:53 am Post subject: |
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| I had just done a valve adjustment. I could hear a noise with the engine running so i checked the valves. All looked fine, and adjusted freely. As i was turning the pulley by hand i could clearly hear, sucking and blowing as the valve in #3 (the one closest to #4) was raiseing and lowering. |
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oval_and_out
Samba Member
Joined: January 10, 2006
Posts: 5
Location: England
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| Posted: Thu Jul 19, 2007 7:50 am Post subject: |
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| would it be dangerous to drive it with the valve leeking air? |
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Banzai KG
Samba Member
Joined: April 10, 2004
Posts: 2992
Location: Sunnyvale, CA
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Blaubus
Samba Member
Joined: October 25, 2003
Posts: 5153
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| Posted: Thu Jul 19, 2007 11:58 am Post subject: |
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| Either you have a loose head or a burnt valve....most likely a burnt valve. |
an intake valve burnt?  |
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Banzai KG
Samba Member
Joined: April 10, 2004
Posts: 2992
Location: Sunnyvale, CA
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Blaubus
Samba Member
Joined: October 25, 2003
Posts: 5153
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| Posted: Thu Jul 19, 2007 5:30 pm Post subject: |
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| broken spring perhaps |
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EZGZ
Samba Member
Joined: October 10, 2005
Posts: 923
Location: Loveland, Colorado
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| Posted: Thu Jul 19, 2007 5:34 pm Post subject: |
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Don't fret. If it's gone its gone.
How does it drive?
Time to start setting a little money aside for some head work.....
I have a cookie jar and when I need something in the future thats not real expensive I start throwing my change in there. When I buy stuff I always use paper so I get change back to throw in the cookie jar.
It doesn't take long to add up
_________________
64 custom Ghia, 66 Bug, Sandrail, Barrien tub |
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Vayabroder
Samba Member
Joined: April 04, 2006
Posts: 989
Location: Hollywood, FL
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| Posted: Thu Jul 19, 2007 9:03 pm Post subject: Noise |
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| Worthwhile suggestions; here's another one (from my own experience): check for bad intake gaskets. |
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oval_and_out
Samba Member
Joined: January 10, 2006
Posts: 5
Location: England
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| Posted: Sun Jul 22, 2007 10:05 am Post subject: |
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| Thanks for the tips. Have been at bug jam uk all weekend so no time to check. Spring is fine, heads are new, but maybe the valve burnt or not seating correctly. I'm gonna check with the rockers off if valves are lining up straight. i really dont know much? im kinda learning as i go along. |
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Banzai KG
Samba Member
Joined: April 10, 2004
Posts: 2992
Location: Sunnyvale, CA
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