Engine Noise
Dec 13, 2013 | 03:13 PM
Thread Starter
Racer
Joined: May 2010
Posts: 370
Likes: 0
From: Westminster
Engine Noise
Just started my 73 Vette. My brother had and It hasn't started four a year finally got a new battery for it. It started right up but it was very loud. It sounded like clanking noise. Any suggestions on what i should look for before i tear it apart?
Dec 13, 2013 | 03:46 PM
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Define "clanking." Did you check the oil level before you lit it up?
Dec 13, 2013 | 03:50 PM
Thread Starter
Racer
Joined: May 2010
Posts: 370
Likes: 0
From: Westminster
engine noise
Checked the oil before starting. Almost like a bang. Probably should take out spark plugs and give them a look at. Also maybe water pump?
Dec 13, 2013 | 04:01 PM
Burning Brakes
Joined: Oct 2011
Posts: 1,093
Likes: 2
From: long beach California
Take a video to.give us an idea. . Clanking or big bang could be a hundred things. If you hadn't started in over a year it could have been just a loud back fire or bad fuel in the system not firing right causing nkocking.. does it sound like a metal on metal bang or what?
Dec 13, 2013 | 04:29 PM
Thread Starter
Racer
Joined: May 2010
Posts: 370
Likes: 0
From: Westminster
engine noise
Sounds more of a metal on metal sound.
Dec 13, 2013 | 04:37 PM
Melting Slicks
Joined: Jul 2009
Posts: 2,091
Likes: 40
Maybe a cat hung in the fan shroud.
Thumping as it spins around
Dec 13, 2013 | 05:16 PM
Thread Starter
Racer
Joined: May 2010
Posts: 370
Likes: 0
From: Westminster
engine noise
Or maybe some mice in there thumping around.
Dec 13, 2013 | 05:23 PM
Safety Car
Joined: May 2004
Posts: 4,340
Likes: 1,566
From: los altos hills california
If it's a manual transmission car, cover plate on bellhousing can give you fits when it grinds against the flywheel
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every Model vs Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
Dec 13, 2013 | 05:29 PM
Thread Starter
Racer
Joined: May 2010
Posts: 370
Likes: 0
From: Westminster
engine noise
Well automatic trans but i just had it towed here. I dont know going to get my son to video it tomorrow. Dosnt sound like valves it just clanking
Dec 13, 2013 | 06:09 PM
Le Mans Master
Joined: Apr 2011
Posts: 6,284
Likes: 1,170
From: Hermosa
Quote:
Originally Posted by
LS4 PILOT
Maybe a cat hung in the fan shroud.
Thumping as it spins around
What an awful fate for a fan shroud.
Dec 13, 2013 | 06:20 PM
Burning Brakes
Joined: Mar 2010
Posts: 803
Likes: 4
From: Christchurch, New Zealand
Dec 13, 2013 | 06:25 PM
Drifting
Joined: Aug 2013
Posts: 1,263
Likes: 512
From: perth Aus w.a
2020 Corvette of the Year Finalist (stock)
C3 of Year Winner (stock) 2019
Check under your valve covers. Rocker arm maybe loose. Had that happen on my 71 350 corvette.
Dec 13, 2013 | 06:28 PM
Thread Starter
Racer
Joined: May 2010
Posts: 370
Likes: 0
From: Westminster
engine noise
Quote:
Check under your valve covers. Rocker arm maybe loose. Had that happen on my 71 350 corvette.
Give that a look at thanks