Distributor noise? - Team Camaro Tech
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post #1 of 9 (permalink) Old Apr 21st, 03, 04:22 PM Thread Starter
 
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I have a Chevy HEI distributor in my 68 Camaro (350) that is clicking and knocking… I replaced the cap and rotor still the noise is there. Do I need to grease something? Please help any advice?
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post #2 of 9 (permalink) Old Apr 21st, 03, 08:47 PM
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Sounds like the rotor is hitting the cap. Make sure that the cap is seated properly on the distributor. Good first place to look. HEI don't usually make any noises like that. [img]graemlins/waving.gif[/img]

Randy<br /><br />My dream car is never quite finished....<br />I keep running out of money!!
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post #3 of 9 (permalink) Old Apr 21st, 03, 08:48 PM
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Also make sure the rotor is properly mounted to the distributor!

Randy<br /><br />My dream car is never quite finished....<br />I keep running out of money!!
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post #4 of 9 (permalink) Old Apr 22nd, 03, 03:13 AM
 
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Had an HEI making ticking noises. My mechanic buddy says: "another one of those cheapy rotors & caps". Goes in the parts room and comes out with some Delco stuff "here". Put these in .....ticking gone. He says there is to big of gap between the rotor and cap causing arcing and it will wear itself out soon.
Roger
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post #5 of 9 (permalink) Old Apr 22nd, 03, 03:36 AM
 
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You have an HEI in a 1st gen. Did you clearance your firewall or move the engine forward? If not you may move the distributor cap every time you accelerate which can also cause the noise as the cap is no longer mounted correctly. Also have you checked the distributor shaft? If the bearings are worn, it will spin out of round and the rotor can hit the contacts. Just a couple more things to check.
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post #6 of 9 (permalink) Old Apr 22nd, 03, 05:21 AM Thread Starter
 
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Thanks for the input guys. I will try AC Delco parts (Cap & rotor) maybe it is a gap thing…
The car runs fine, its just clicking and knocking.
I'm relatively sure the cap is secured down and it's not getting loose when I drive. I bought the dist new 2 years ago so I don’t think the bearings are worn.

I did not move the engine forward, the cap is pretty tight to the fire wall but it fits and worked fine until yesterday. I did install a new intake this winter, so I'm thinking maybe the pickup thing may have got misaligned when I had the Dist out?
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post #7 of 9 (permalink) Old May 8th, 04, 08:46 AM
 
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SonnyV,
Dis you ever figure out what your noise was? It seems I have the same problem you did. No noise then I replaced the intake and now I get a noise.
Thanks,
Ken
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post #8 of 9 (permalink) Old May 8th, 04, 01:38 PM
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Quote:
Originally posted by 69X11SS:
You have an HEI in a 1st gen? Did you clearance your firewall or move the engine forward? If not you may move the distributor cap every time you accelerate which can also cause the noise as the cap is no longer mounted correctly. ...
My thoughts exactly. Mine had a fat HEI in it, resting right up against the firewall. When I removed it you could see nicks inside the cap where it had been hitting the rotor. I replaced it with a small body from http://www.davessmallbodyheis.com

Dave
========================
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
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post #9 of 9 (permalink) Old May 13th, 04, 07:52 PM
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I've also seen a bad plug wire cause internal arcing in the cap which causes a clicking sound. The arcing can hit the module and blow it depending on which plug wire.
David

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