0
It depends on the year. If you can't get the idle down, check for vacuum leaks. That seems to be a primary cause of high idle, especially for the TBI engines.
Wiki User
∙ 16y ago
Add your answer:
Earn +20 pts
How do you reset the cam timing and ignition timing when youv removed the distributor from a 1977 Chevy 305 small block?
cam timing will not change ignition timing i would try 8 or 10 degees advance at idle with the vacuum advance disconnected.
How do you advance idle on 1990 Chevy 350 truck?
It is not adjustable, sealed from the factory. DO NOT FULL WITH ITThere is no conventional idle adjustment for the TBI motors, but if your willing you can advance or retard the timing by rotating the distributor housing a couple of degrease, but not to much. This will raise or lower your RPM a bit.
What is the reason for vacuum at distributor?
"VAcuum advance". Step on it, vacuum goes down and it advances timing for more performance/power. Idle of letting off, advance goes back to setting for economy.
How do you set timing on 1963 Cadillac?
disconnect vacumn advance hose, bring down to curb idle, connect timing light to the # 1 spark plug wire, loosen distibutor and adjust as necessary
Why is your timing retarded on your 1995 Chevy s10 blazer?
Does it only occur when the engine is cold? There should be an idle valve with a vacuum hose i.e. BMW has a hose that comes from the intake manifold goes down into an electric valve then goes on to the throttle body intake hose. The timing is retarded to help start/idle the engine when it's cold if the hose came loose it will not advance the ignition when the engine is warm.
What is the timing on a 350 Chevy bored 060 with a 504 lift cam?
There is no set timing for this specification. If you are using a mechanical advance distributor rather than a computer you will initially target 35 degrees total advance over 2500 rpm with an idle setting of 10 degrees with out vacuum advance. From there experimentation to determine most effective setting for your engine.
How do you set the timing on a 92 Chevy caprice classic with either 305 0r 350?
with the v/advance unplugged bring your idle up to 3000rpm and set you timing at 32 while revving. now tighten down the distributor and plug you v/a back in, and voi-la your done. that year doesn't have a vacuum advance... he said 92 caprice not 82........you need to find the EST remove it and set the timing to 0 then plug the est back in and the computer takes over
Need ignition timing and idle speed specs for a 1985 Chevy 350?
I know the timing is 6 degrees Before TDC but I don't know what the idle RPM is.. I'm trying to find that myself right now...
93 Chevy truck will not idle down?
check the ait. on yhe left side of carb..it control's idle.
1971 Pontiac 455 Ignition timing?
If the engine is stock, I'd set the initial timing at 12, make sure the timing mark starts to move when you rev the engine off idle, and watch it advance up to somewhere in the 30 - 35 degree range when it stops. Do this with the vacuum advance disconnected. Then with the timing set at 12 with the engine at idle, hook up the vacuum line to the distributor and see that the timing now shows somewhere in the high 20's to low 30's of timing.
What is the rp m's for setting the timing 5 5.7 liter engine?
Most people set the timing at idle speed. Around 700-800 rpm. If you have an advance timing light, you can set it for total timing, which is all in by 2800-3000 rpm.
1978 350 with HEI ignition what should the timing be set at and at what RPM should the engine be running when you set it and does the vacuum advance need to be disconected?
SBC timing should be set at about 6-8 degrees advance with the vacuum disconnected at idle, about 600-800 rpm
