Home page
  Active Threads   Forum Search   Top Posters List   Private Messenger   Vette Registry Email System   Corvette Quiz
  Members Vettes & Pictures   Member Stories   Member Stats   Real Time Member Map   Member Search   Lifetime Member List   Member Calendar Entry Form   Who's Online
  Vette Registry Data   Corvette Statistics   Corvette Tips & Tricks   Corvette How-Tos   Corvette Club Directory   Corvette Events Calendar   Corvette Mechanic Directory   Corvette VIN Decoder   Save the Wave   Corvette Emblem History   C3 Corvette Birthday Calculator   C3 Corvette Build Dates & Trim Tag Codes   1953-1982 Corvette Parts & Illustration Catalog
  Corvette Parts Auctions on eBay   Corvette Books   Vette Registry In-Stock Apparel & Accessories   Vette Registry Member Name Badges   Vette Registry Custom Apparel & Accessories @ Zazzle   Vette Registry Window Stickers   Vette Registry Member Calendars   Shop Amazon.com
  Our History   Advertise with Us   Sponsor List   Link to Us   Compare Levels   Member Agreement   Terms of Service   Privacy Policy   Contact Us
☰

Idling issue

Forum: C3 Engines, Driveline and Handling

6 Messages
Page 1 of 1
Share:
Sponsored Content
Don't Miss Out!
Join us for our 2026 Vette Registry Member Gathering! Click for full details.

Already a Member?

Welcome back! Access your account.

Sign In

Not yet a Member?

Join our community! Registration is free.

Join Free

Idling issue

Posted: 5/26/05 5:54pmMessage 1 of 6
S
Silver69
Former Member
Send PM
Joined: 1/26/2004
Posts: 313
I went and replaced my points system with a Pertronix II . The car runs fine but, it will idle up to about 1100RPM once it gets warmed up. The timimg is set to 4 deg BTDC at idle. After letting it sit for a short time and restarting it will idle @ 600-700RPM were it should, but then idle back up after running/driving a while. I've checked the choke and fast idle cam for sticking and they are just fine. Kinda stuck here, any ideas?
Be the first to like this post
Sign In to Like this post
SPONSOR AD:: (Our Sponsors help support Vette Registry)

Idling issue

Posted: 5/26/05 6:45pmMessage 2 of 6
l
lost in the 60's
Free Member
Send PM
Newark, CA - USA
Joined: 4/29/2004
Posts: 350
Vette(s): 1969 Corvette 4-speed ZZ-4 crate Monza Red
Are you sure it's not sucking air from somewhere?
Be the first to like this post
Sign In to Like this post

Idling issue

Posted: 5/27/05 4:13amMessage 3 of 6
k
knotacare
Free Member
Send PM
Newark, DE - USA
Joined: 7/26/2004
Posts: 468
Vette(s): 1968 Conv, 454HO,500HP-600TQ, TKO-600,3:70 HD rear,hotrod air, custom paint & suspension,1973 Ruby Red,T-top, 383 Stroker, TK)-500,frame off restro, 1967 Dodge Coronet, 340 stroker to 406, Dana 60

What kind of carb do you have? Sounds like gas is leaking inside the carb somewhere. Doesn't take much of a leak to raise the idle.

Alan

                                               

Be the first to like this post
Sign In to Like this post

Idling issue

Posted: 5/27/05 5:31amMessage 4 of 6
Profile Pic
kstyer
Lifetime Member
Moderator
Send PM
CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
Put a timing light on the car and see if the timing changes when the idle raises.  Advanced timing will cause the speed increase.  
Be the first to like this post
Sign In to Like this post

Idling issue

Posted: 5/27/05 11:39amMessage 5 of 6
Profile Pic
cthulhu
Lifetime Member
Send PM
Hot Springs, AR - USA
Joined: 4/24/2004
Posts: 3236
Vette(s): 69 Conv #'s match 427, TKO-600/.64, 3.36HD-Posi, HT, T/T, PS, PB, PW, SP, Leather, Comp XE264HR & Roller Rockers & Lifters, Air-Gap RPM intake, Holley St Av 770 VS, MSD 6AL+Dist+Blaster SS, K&N, Jet-Hot Hooker Side-Pipes, Steeroids, Al Rad, Spal Fans

im thinking vacuum leak as well...  they have a tendency to cycle like this..

 

Be the first to like this post
Sign In to Like this post

Idling issue

Posted: 5/31/05 10:52amMessage 6 of 6
A
After Shark
Former Member
Send PM
Portland, TN - USA
Joined: 4/29/2003
Posts: 805
Vette(s): 1972 Coupe Anything, but Stock and more mods to come! SSBC Force 10 Brakes, 3.73, TH350, 355 CID, Rack and Pinion, Vette Brakes suspension front and rear.
I don't know.  If it wasn't doing it before the pertronix then I would suspect the problem lies with the new ignition piece.  I'm memory serves correctly the pertronix II has a built in timing computer and that may be causing it to flucuate.
Be the first to like this post
Sign In to Like this post
Share:

in Forum: C3 Engines, Driveline and Handling


Sponsored Content