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deanbradford Samba Member
Joined: October 30, 2013 Posts: 34 Location: United Kingdom
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VWporscheGT3 Samba Member
Joined: September 01, 2006 Posts: 2073 Location: Gardnerville, NV
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Posted: Fri Mar 05, 2021 2:17 pm Post subject: Re: Strange metallic sound |
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im probably wrong but sounds a-lot like fan rub on the shroud to me... and yes i did read your initial post _________________ Schnell, SCHNELL!
I like being wrong, Because, it is another opportunity to learn. If you stop learning from your mistakes than what is the point?
If you have any questions about Forged ICON 4032 VW pistons just shoot me a line.
Last edited by VWporscheGT3 on Fri Mar 05, 2021 2:32 pm; edited 1 time in total |
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robcy04 Samba Member
Joined: August 29, 2018 Posts: 207 Location: FL
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Posted: Fri Mar 05, 2021 2:27 pm Post subject: Re: Strange metallic sound |
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VWporscheGT3 wrote: |
im probably wrong but sounds a-lot like fan rub on the shroud to me... |
My though exactly. |
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deanbradford Samba Member
Joined: October 30, 2013 Posts: 34 Location: United Kingdom
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Posted: Fri Mar 05, 2021 2:37 pm Post subject: Re: Strange metallic sound |
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I know what you mean my thoughts initially so I removed the fan belt and still the same noise |
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QRP Samba Member
Joined: April 27, 2008 Posts: 1703 Location: NORTH HOLLYWOOD,CA
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Posted: Fri Mar 05, 2021 2:42 pm Post subject: Re: Strange metallic sound |
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Maybe a pushrod hitting the pushrod tube. |
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deanbradford Samba Member
Joined: October 30, 2013 Posts: 34 Location: United Kingdom
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Posted: Fri Mar 05, 2021 2:44 pm Post subject: Re: Strange metallic sound |
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Pushrods are oversize from CSP VW and are clear from rubbing |
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mark tucker Samba Member
Joined: April 08, 2009 Posts: 23937 Location: SHALIMAR ,FLORIDA
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Posted: Fri Mar 05, 2021 2:57 pm Post subject: Re: Strange metallic sound |
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make sure pully tin is not contacting the pully. it kinda soulds like tight wrist pins, kinda hard to say without being there to eleminate stuff. whats the side play on the rockers.and have ou fely the pushrod tubes as it's running to make sure nutten is tuching them? also feel the oil pump just incase the oil pump is contacting the cam bolts. and look for extra crank end play too. some of those rockers Ive gotten well both sets I got the foot was not square to the shaft. and re set the lash. side play should be set .002"-.004" for quiet operatiion. also check for coil bind as well as guide to keeper clearance to full lift. did you add flats to the pushrod ends??? |
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Busted-bolt Samba Member
Joined: April 14, 2018 Posts: 514 Location: minnesoota
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Posted: Sat Mar 06, 2021 6:30 am Post subject: Re: Strange metallic sound |
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The belt pulley oil slinger washer could be in backwards and rubbing inside of the case. If you have an aftermarket cam in there care is to be taken so the cam gear bolts clear the oil pump to. _________________ Vw collection 60 combi ,61 panel ,62 deluxe micro,82 diesel Westfalia,88 Vanagon synchro,98 Jetta tdi,11 Jetta tdi mt ,11 Jetta tdi dsg.
I do all my own work,body,engine and transmission. |
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deanbradford Samba Member
Joined: October 30, 2013 Posts: 34 Location: United Kingdom
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Posted: Sat Mar 06, 2021 12:08 pm Post subject: Re: Strange metallic sound |
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Thinking about it did start after carrying out some shimming on the rockers. I got about 6 to 4 thou gap between the rockers one side so 2 to 3 thou both sides of the rocker. Before that they were around 12 thou gap.
I’m going to swap over the rocker assemblies to see if the noise changes to the left.
If that doesn’t work will have to pull the head off and barrels ☹️
Definitely not the pulley and fan housing as have tested them.
Thanks for all your comments. |
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evanfrucht Samba Member
Joined: July 24, 2016 Posts: 2180 Location: Laurel Canyon, CA
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Posted: Sat Mar 06, 2021 12:23 pm Post subject: Re: Strange metallic sound |
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Check for loose tins rubbing or hitting when the engine vibrates. _________________ 1967 Bug ( the daily rod )
1964 Fury Wagon ( the pavement shredder ) |
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YDBD Samba Member
Joined: February 25, 2017 Posts: 890 Location: Bavaria, Germany
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Posted: Tue Mar 09, 2021 9:40 pm Post subject: Re: Strange metallic sound |
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Exhaust gasket whistle? _________________ '56 pan Dune Buggy since '69
don't live in the past...but when I did:
'67 bug
'64 baja
'60 dune buggy
'73 Personenkraftwagen Type 182 "Thing" |
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74 Thing Samba Member
Joined: September 02, 2004 Posts: 7369
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Posted: Wed Mar 10, 2021 10:12 am Post subject: Re: Strange metallic sound |
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Loose manifold possibly-pull carb and redo the gasket. |
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