Odd engine vibrations and noise...water pump?
Thread Starter
Racer
Joined: Oct 2008
Posts: 276
Likes: 5
From: Aptos, CA
Ok just ran the engine with the belts off.
No vibes. Smooth as can be.
Since my water pump pulley feels wobbly (technical term mind you) even though it isn't leaking then I think that's where my investigation will head.
The only other options are.
Balancer and pulley
Power steering pump and pulley
Alternator/pulley
No vibes. Smooth as can be.
Since my water pump pulley feels wobbly (technical term mind you) even though it isn't leaking then I think that's where my investigation will head.
The only other options are.
Balancer and pulley
Power steering pump and pulley
Alternator/pulley
Racer
Joined: Mar 2010
Posts: 392
Likes: 0
From: Okawville IL
St. Jude Donor '14
I just went through this with my 1980 last week, but with mine it would sound fine when started, only after running a while would I hear the noise of water pump going out. when slowing from highway speed I would hear a whistling and clicking. Then the day it went, I started car and just did not sound right or feel right, popped hood and I could see water pump pully moving back and forth, and some anti freeze on manifold.
I would say it is the water pump.
Mike.
I would say it is the water pump.
Mike.
Melting Slicks
Joined: Sep 2004
Posts: 2,412
Likes: 3
I'm selling a High Flow Milodon water pump in the for sale section, cheap. It only has a few thousand miles on it. I needed to convert to a long neck water pump for the Procharger pulley. I can also include the stock pulley with it if you want. Send me a PM if you're interested.
Le Mans Master
Joined: Aug 2006
Posts: 7,431
Likes: 1,561
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
You should consider enkeivette's offer if you have that much play in your water pump.
I'm pretty sure that you want between 0.010 at the low end and 0.060 play where the distributor shaft goes up and down at the gear end.
I'm pretty sure that you want between 0.010 at the low end and 0.060 play where the distributor shaft goes up and down at the gear end.
Burning Brakes
Joined: Jun 2005
Posts: 1,113
Likes: 35
From: LaUgH, mOrE!
I replaced my water pump last summer. My w.p. pulley did wobble really badly when it finally failed. One can also use a long piece of wood (like a broom handle cut off) to listen to the bearings in there. As mentioned, just use caution not to engage any moving parts while holding it against your water pump.
