Topic: engine start
in Forum: C3 Engines
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What is the reason the car is harder to start when hot? When I first get in the car is turns over very fast and starts right up. When it has been ran and I cut it off and then try to start it it wants to grunt a few times then turn over and start.
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Starter could be getting hot from engine heat and when you try to restart - it doesn't have the "guts" it had when it was cold .
I'm sure others will have other suggestions - gas, spark
Big Al
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Duncanville, TX - USA
Joined: 11/8/2003
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
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#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Sounds like you may have a timing issue...as in too much initial timing. That's what normally makes them "grunt" when starting hot. It could also be carbon build-up on the pistons, so-so fuel, or too much piston/cylinder wall clearance.
I'd suggest checking the timing first. The advance weights in the distributor may be sticking, too...check the timing cold and hot, to see if there is a major difference.
I'd suggest checking the timing first. The advance weights in the distributor may be sticking, too...check the timing cold and hot, to see if there is a major difference.
Joel Adams
C3VR Lifetime Member #56 
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Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
You may...
Even more reason to check the ignition timing. Do you happen to have the specs on the cam?
Even more reason to check the ignition timing. Do you happen to have the specs on the cam?
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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Oak Creek, WI - USA
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Vette(s): 1981 Great White Shark. Red Interior, 350/190 hp. PS, PB (SS), A/C CC, T-Tops. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vettes Car Club. 175,000 Original miles!! Now own a 1998 C-5!
Is your 1980 a California Car? Does it have the ECM?
in Forum: C3 Engines
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