Noise from carb???
Thread Starter
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Tuned
Joined: Dec 2008
Posts: 269
Likes: 1
From: Paradise, CA
Noise from carb???
I've got a strange noise coming from my carb.
(Holley 600 vac sec. 1850s) I'm pretty sure it's the carb and not coming from inside the engine. I don't have another carb to put on there to see if the noise goes away. It's a rattling noise. I've checked the choke horn and that's not it. Can the floats rattle? Noise seems to go away when reved. I guess I'll pull the carb off and see what I can find, but I just thought I would throw this one out there and see what ya'll thought before I get back out there and tear into it.
(Holley 600 vac sec. 1850s) I'm pretty sure it's the carb and not coming from inside the engine. I don't have another carb to put on there to see if the noise goes away. It's a rattling noise. I've checked the choke horn and that's not it. Can the floats rattle? Noise seems to go away when reved. I guess I'll pull the carb off and see what I can find, but I just thought I would throw this one out there and see what ya'll thought before I get back out there and tear into it.
Postmaster
Joined: Oct 2005
Posts: 3,083
Likes: 4
From: Victoria , BC
Hey that may be a good call! My 428 had a slight tick I was concerned about from pass side and thinking about it my pcv is on that side..
I'll check this out later today after I finish swapping my deisal hydroboost Saginaw pump.
I'll check this out later today after I finish swapping my deisal hydroboost Saginaw pump.
Senior User
Joined: May 2010
Posts: 476
Likes: 0
Mann I spent 3 days tearing things down and looking for the source of that tap, and new lifters (Yall would be supprised how hard it is to find parts for an FE in Oklahoma city!!!)
Still havent replaced that noisey PVC, really need to, a new one probly wouldent make sutch a racket!!!
Still havent replaced that noisey PVC, really need to, a new one probly wouldent make sutch a racket!!!
Thread Starter
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Tuned
Joined: Dec 2008
Posts: 269
Likes: 1
From: Paradise, CA
I guess I've never really seen a bad pcv before, until tonight. Not sure if it is what is making the noise, but it's definitely bad when compared to a new one. And it would make sense that I could hear it rat'lin through the carb. It rattled when I shook it but I could tell there wasn't full movement. It's to late to start it up tonight, but will confirm it tomorrow when I get home from work. Thanks for the tip!!!
Thread Starter
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Tuned
Joined: Dec 2008
Posts: 269
Likes: 1
From: Paradise, CA
Got home late again, but put in a new pcv and started it up. The noise seems less but still there. I'll pull the valve cover tomorrow and check to see if I have a loose rocker or possibly a tight valve. yay.
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Thread Starter
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Tuned
Joined: Dec 2008
Posts: 269
Likes: 1
From: Paradise, CA
I never found out what was causing the noise but it was for sure from the carb because I bought a new carb and the noise is gone. I have other issues I'm dealing with and will update this thread when I find out what caused the noise.
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