engine squeak/whistle

harpua · Samba Member Joined: May 18, 2006 Posts: 88

Something amskeptic wrote the other day has me wondering... He mentioned a canary chirp indicating a head gasket leak. I've always thought aircooled vdubs always have sort of a charactertistic high pitch squeaky, squealy sort of sound; canary chirping wouldn't be my first description but maybe it fits. Even as a kid I recall esp. typeI's having this sound. Is this what he is talking about? Could that sound I know and love as a characteristic of aircooled VW's (and hear in my own '77 westy) actually be a head gasket leak?

wangdang · Posted: Mon Jun 04, 2007 1:40 pm Post subject:

it could be, but it could also be an intake leak.

JMazier · Posted: Mon Jun 04, 2007 1:49 pm Post subject:

Maybe the sound that you know and love is the "fweem" thing which is a normal VW sound, mainly from Type 1 engines… If so then nothing to worry about. I am not familiar with the sound of a head leaking however a leaky exhaust is a high pitched intermittent sound.
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busman78 · Posted: Mon Jun 04, 2007 8:19 pm Post subject:

Could also be the altenator cover plate vibrating against the alternator or the lack of oil below the felt pad in the center shaft of the distributor. Plug the exhaust pipe and that will answer whether it is an exhaust leak.

phoneguy · Posted: Mon Jun 11, 2012 4:13 pm Post subject:

I have this same problem,I removed the Alt belt and the squeak/chirp is still there. Sounds like it's coming from the pulley. What was the resolution here ?
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busdaddy · Posted: Mon Jun 11, 2012 4:48 pm Post subject:

Either the shroud is loose and the fan is rubbing or the distributor needs a lube.
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VDubTech · Posted: Mon Jun 11, 2012 4:50 pm Post subject:

This is what the squeak from a leaking head gasket sounds like, and the noise to which Amskeptic was referring to. You can hear the obvious chirp and how it differs from a normally running T4 engine.

Link

Link

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phoneguy · Posted: Mon Jun 11, 2012 5:21 pm Post subject:

Sounds like vid #3 but a little bit more like metal squeak from the fan pulley, I recently (about a month ago) lubed the distributor. BD , when you say the shroud could be loose are we talking alternator shroud or fan pulley shroud ?
_________________
"When my ship comes in I'll be at the airport"

1971 Supervert
1977 Westfalia

busdaddy · Posted: Mon Jun 11, 2012 5:34 pm Post subject:

Fan shroud, especially if it's got A/C, pull the fan and look for fresh shiny parts.
_________________
Rust NEVER sleeps and stock never goes out of style.

Wanted, 68-73 westy OG plaid curtains, singles OK.

phoneguy · Posted: Mon Jun 11, 2012 5:52 pm Post subject:

busdaddy · Posted: Mon Jun 11, 2012 6:21 pm Post subject:

phoneguy · Posted: Tue Jun 12, 2012 5:24 pm Post subject:

No shiney parts. Sad

Am I looking at a head replacement or retorqueing the heads ?
_________________
"When my ship comes in I'll be at the airport"

1971 Supervert
1977 Westfalia

Stuartzickefoose · Posted: Tue Jun 12, 2012 5:28 pm Post subject:

the chirp from types ones is a non even fire distributor (the 3rd cam lobe is retarded a bit to lower head temps)

...i think.
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phoneguy · Posted: Tue Jun 12, 2012 5:46 pm Post subject:

This is a type 4
_________________
"When my ship comes in I'll be at the airport"

1971 Supervert
1977 Westfalia

Stuartzickefoose · Posted: Tue Jun 12, 2012 9:42 pm Post subject:

ccpalmer · Posted: Wed Jun 13, 2012 5:03 am Post subject:

Stuartzickefoose · Posted: Wed Jun 13, 2012 5:55 am Post subject:

phoneguy · Posted: Wed Jun 13, 2012 6:13 am Post subject:

Just reread this thread and I didn't realize that type 4's have head gaskets as type 1's don't. I guess I need to replace them ?
_________________
"When my ship comes in I'll be at the airport"

1971 Supervert
1977 Westfalia

SGKent · Posted: Wed Jun 13, 2012 1:24 pm Post subject:

phoneguy · Posted: Wed Jun 13, 2012 7:04 pm Post subject:

I don't know it even has them, I'm going to try torqueing the heads again and go from there.
_________________
"When my ship comes in I'll be at the airport"

1971 Supervert
1977 Westfalia

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