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Does the vacuum line have to be on or off the distibuter when timing?
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How do you set the timing on a 1986 Chevy truck with a 305 engine The engine backfires times?
start here clean the line on the harmonic balancer and mark it with white out,so you can easily see it with a timing light.than clean the timing chain cover so you can see the degree marks it will say like 6420246 left is retarded and right is advanced,than there should be a sticker on the rad support saying what the timing should be set at for example it will say 8degrees with trans in park or neutral at idle, if its carbourated remove the vacuum advance hose from the distributer and plug it off so that the distibuter has no vacuum advance,if its fuel injected than you will have to disconnect what will be a purple wire in the main engine harness,this will be located on the left Sid eof the firewall if you are looking at the engine from the front of the vehicle.than start the engine and inspect the white line on the harmonic with the timing light,than simply move turn the distibuter until you can put that white line with the correspnding timing located on the rad support.once done so tighten the 9/16 bolt under the distibuter to ensure that it will not move.
Why does a 2001 Daewoo Lanos run rough after replacing the timing belt?
The timing may be off a tooth, or maybe a vacuum line was not hooked back up.
Your engine is making a crackling sound like popcorn popping?
means that your timing is off due too either a the distibuter, cam sensor or computer
Do you have to unplug anything be for you set the timing on 1987 Toyota 4x4 truck?
Yes the vacuum line off the distributor and don't forget to plug the hose.
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.
Should I advance or retard the timing on a 327 Chevy engine if it is hard starting and sometimes stalls at idle and when you let off the throttle?
Set the timing at 6 degrees BTDC (Before Top Dead Center). Make sure you pull the vacuum line off the distributor and plug the line with a golf tee or something before setting the timing, it will make a difference and it's the recommended procedure. Be sure to reconnect the vacuum line after you time it . Just fyi check the timing again to see how much the vacuum advance changes the timing, but trust the way you set it with the line plugged, the specs call for the line to be plugged. While you are at it , rev the engine and watch to see if the timing is advancing properly. You can get a timing tape to put on the vibration dampener. You should get well over 30 degrees total advance depending on how much is built into that particular dist . A good speed shop can curve the dist to optimize your application. It's one of the cheapest most effective and most overlooked performance mods you can make. Don't see the timing advance then that is your problem. If you still have the hard starting, stalling, and idle problem, then it is not cause by timing. Check all vacuum hoses and replace any that are cracked or leaking. In fact I would just replace them all to make sure.
How can you set the timing on a 1982 350 Chevy?
start engine ,plug off vacuum line to advance on distributer ,set at 6-8 degrees btc with a timing light hooked on #1 cylinder,tighten dist. , hook vac. hose back up.done
1992 Chevrolet 350 changed timing chain cant get roator to line up?
pull the timing cover back off and make sure that the timing marks on the timing gears are parallel (in line) with each other cuz more than likely the mark is off there fore making your timing out which wont let your rotor line up
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.
Is a 4x4 plunger on a 89 blazer supposed to have tranny fluid in it I took the vacuum line off and tranny fluid came out is that supposed to be like that?
Not in the vacuum line.
How do you set the timing on your 85 rx7?
With a timing light of course. Your crank pully should have 2 marks on it, the first mark is for the leading plugs and is 5 degrees AFTER top dead center (atdc) and the second mark is for trailing and is 20 degrees AFTER top dead center (atdc). Your 85 should have vacuum advance on your distributer, be sure to unplug the vacuum line and cap it off while stetting your timing. Trust me when I say, use only your timing marks, playing with your timing on rotaries causes all sorts of problems
Why does your 1963 Plymouth valiant hesitate at launch?
Could be, Accelerator pump in carburetor is not working, (rebuild carb) Timing is off, (adjust timing) Vacuum advance not working, (replace vacuum advance unit) Points are in need of replacing or adjusting,
