 carbs whistling |
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| last337 |
 Jan 13 2013, 08:48 AM
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#1
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Member  Group: Members Posts: 421 Joined: 4-December 12 From: New Orleans Member No.: 15,221 Region Association: None  |
I got my verbs dialed in pretty darn good yesterday. I only had time for a short test drive, not long enough to pull plugs for inspection. One thing I did notice is a whistling noise coming from carbs when engine was under a load. No backfiring or popping so I'm not sure what this indicates.
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| Dr Evil |
Jan 13 2013, 09:20 AM
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#2
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Send me your transmission! Group: Members Posts: 23,038 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region 
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It may be the normal "trumpet" of carbs. Is this the first you have driven a carbed car? I have to ask, just to rule out some things.
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| VaccaRabite |
Jan 13 2013, 10:07 AM
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#3
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En Garde! Group: Admin Posts: 13,728 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region
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Yeah, carbs make a lot of noise. At above 4k rpm my old webers would be howling. Fun on short drives.
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| last337 |
Jan 13 2013, 10:27 AM
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#4
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Member Group: Members Posts: 421 Joined: 4-December 12 From: New Orleans Member No.: 15,221 Region Association: None |
Yes, this is first carbed car I have driven in years and def first air cooled vehicle. I find it has a nice lope to it when idling at around 900rpm. When it comes up under load it whistles around 2500 then has a nice sound around 3k. I just want to make sure I'm not running too lean but I guess I won't know till I check plugs. I have all carbs just above falling off with mix screw and each pulling about 3.5-4 on STE reading. Like I said, it has a nice lope but still a smooth idle not shaky
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| bandjoey |
Jan 13 2013, 10:30 AM
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#5
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bandjoey Group: Members Posts: 4,934 Joined: 26-September 07 From: Bedford Tx Member No.: 8,156 Region Association: Southwest Region |
Dellortos? They have a slot in the base that whistles unless you use a special gasket to seal it or what many do is epoxy the grove solid.
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| last337 |
Jan 13 2013, 11:18 AM
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#6
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Member Group: Members Posts: 421 Joined: 4-December 12 From: New Orleans Member No.: 15,221 Region Association: None |
QUOTE(bandjoey @ Jan 13 2013, 10:30 AM)  Dellortos? They have a slot in the base that whistles unless you use a special gasket to seal it or what many do is epoxy the grove solid. Nope they are empi weber 40 knockoffs |
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| last337 |
Jan 13 2013, 04:26 PM
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#7
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Member Group: Members Posts: 421 Joined: 4-December 12 From: New Orleans Member No.: 15,221 Region Association: None |
Is that just the way things will sound with carbs? Is that lope normal or could it indicate a different can? I'd like to know what cam I have. Is there a way to know looking at valve train or would I have to open things up?
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| vw505 |
Jan 13 2013, 08:38 PM
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#8
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Member Group: Members Posts: 228 Joined: 17-April 03 From: San Antonio, TX , Navy retired Member No.: 579 Region Association: None |
Ya, I was going to say some carbs just whistle, my webber 44's bark.
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