Is this noise normal?
Thread Starter
Racer
Joined: Sep 2004
Posts: 298
Likes: 0
From: Comstock Park Michigan
Is this noise normal?
I have a '73 w/ manual trans. When I'm cranking the starter everything sounds normal. But as soon as she starts, I hear a loud grinding type of sound which only lasts about 1/2 a second. With the sound is also a vibration during that 1/2 a second. Possibly no actual grinding, but the vibration causing that type of sound? Another problem I have is a chattering clutch when engaging 1st gear. Seems like the two issues might be related? Any thoughts? Thanks.
Burning Brakes
Joined: Feb 2004
Posts: 958
Likes: 1
From: In the Beautiful Shenandoah Valley of VA
You likely have a defective starter drive overrunning clutch. When the engine fires it accelerates the starter gear which then spins on reverse cut grooves in the overrunning clutch to back itself out of flywheel engagement. When these grooves dry out, you get the type of noise and vibration that you are describing. A new starter drive or starter will probably correct the problem.
Steve
Steve
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Originally Posted by meangreenie
I have a '73 w/ manual trans. When I'm cranking the starter everything sounds normal. But as soon as she starts, I hear a loud grinding type of sound which only lasts about 1/2 a second. With the sound is also a vibration during that 1/2 a second. Possibly no actual grinding, but the vibration causing that type of sound? Another problem I have is a chattering clutch when engaging 1st gear. Seems like the two issues might be related? Any thoughts? Thanks.
From what you have described, I would not say that the clutch chatter is related at all. How old is the clutch?
Thread Starter
Racer
Joined: Sep 2004
Posts: 298
Likes: 0
From: Comstock Park Michigan
Thanks for the advise guys! Sounds like a new starter should take care of that noise. I've only owned the car since September, and the starter is probably old. It's made that noise since I bought it.
The clutch is supposedly brand new. Guessing they thought a new clutch would solve the chatter? Any thoughts on the chatter would be greatly appreciated. I was planning to start with new engine & tranny mounts.
The clutch is supposedly brand new. Guessing they thought a new clutch would solve the chatter? Any thoughts on the chatter would be greatly appreciated. I was planning to start with new engine & tranny mounts.
Thread Starter
Racer
Joined: Sep 2004
Posts: 298
Likes: 0
From: Comstock Park Michigan
I'll try a new starter, and shim that if nessessary. Do they make shims specific to this application?
Still hoping to get some ideas on the clutch chatter. And maybe the stiff shifting in 1st & 2nd. Thanks!
Still hoping to get some ideas on the clutch chatter. And maybe the stiff shifting in 1st & 2nd. Thanks!
Last edited by meangreenie; Mar 10, 2005 at 10:13 AM.
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Safety Car
Joined: Jun 2002
Posts: 4,135
Likes: 1
Originally Posted by meangreenie
I'll try a new starter, and shim that if nessessary. Do they make shims specific to this application?
Still hoping to get some ideas on the clutch chatter. And maybe the stiff shifting in 1st & 2nd. Thanks!
Still hoping to get some ideas on the clutch chatter. And maybe the stiff shifting in 1st & 2nd. Thanks!
Drifting
Joined: Sep 2004
Posts: 1,532
Likes: 4
From: Fairview Heights Illinois, near Saint Louis MO, STL C3 Shark
Hell, don't go replace the starter without looking at it first. I had one a while back where the little gear on the starter would simply get "stuck" on the shaft. A little sandpaper followed by a little lubricant and "voila" no more sticking starter. And I didn't have to spend $50 on a new starter. 
