Timing, Timing, Timing
Thread Starter
Safety Car
Joined: Oct 2001
Posts: 4,763
Likes: 1
From: Connectivette
Timing, Timing, Timing
Seems to be a popular subject these days.
I've pulled my distributer at least 6 times and have never check the timing after putting it all back together.(I just marked the positon of the rotor) I went out last night, bought a timing gun and this is where I'm at(see sketch below). Like my Rhode Island brothers I see no numbers coresponding to the timing on my unit either. Maybe somebody can download my photo and write in where the numbers should be for us timing noobies.
And.........where is my timing based on my drawing
I've pulled my distributer at least 6 times and have never check the timing after putting it all back together.(I just marked the positon of the rotor) I went out last night, bought a timing gun and this is where I'm at(see sketch below). Like my Rhode Island brothers I see no numbers coresponding to the timing on my unit either. Maybe somebody can download my photo and write in where the numbers should be for us timing noobies.
And.........where is my timing based on my drawing
Thread Starter
Safety Car
Joined: Oct 2001
Posts: 4,763
Likes: 1
From: Connectivette
Re: Timing, Timing, Timing (chucks88)
Wait a minute :rolleyes: I just realized that I forgot to disconnect the est wire first. Let me try this again
[Modified by chucks88, 5:26 PM 10/16/2003]
[Modified by chucks88, 5:27 PM 10/16/2003]
[Modified by chucks88, 5:26 PM 10/16/2003]
[Modified by chucks88, 5:27 PM 10/16/2003]
Team Owner
Joined: Mar 2000
Posts: 83,381
Likes: 87
From: Boston, MA
Re: Timing, Timing, Timing (chucks88)
I wanna say that is 11* BTDC. What you need is a timing gun that has the dial on the back of the gun itself. You turn the dial to the degrees BTDC you want and then turn the distributor until the timing line comes to the 0* mark on the tab.
There are #s on it, but they are usually covered in rust.
[Modified by scorp508, 4:54 PM 10/16/2003]
There are #s on it, but they are usually covered in rust.
[Modified by scorp508, 4:54 PM 10/16/2003]
Safety Car
Joined: Sep 2001
Posts: 4,134
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From: Glenbeulah Wi
Re: Timing, Timing, Timing (chucks88)
Going counter clockwise the big indentation is 0 degrees the next point counter clockwise is 4 degrees BTDC the next indentation is 6 degress BTDC, next point 8 degress BTDC so forth and so on. The degree numbers are on the timing tab you need to clean it well to see them.
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
Cruise-In II Veteran
Re: Timing, Timing, Timing (chucks88)
As my old GF would say "...timing as well as size does matter..."...you should always check/set timing after removing the dist.
Use some Scotch Brite or light sand paper on the timing plate and, if you still have the "frisbee", toss it so you have some access to that area.
Use some Scotch Brite or light sand paper on the timing plate and, if you still have the "frisbee", toss it so you have some access to that area.
Thread Starter
Safety Car
Joined: Oct 2001
Posts: 4,763
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From: Connectivette
Re: Timing, Timing, Timing (bjankuski)
Going counter clockwise the big indentation is 0 degrees the next point counter clockwise is 4 degrees BTDC
Can you replace that with up or down(using my sketch as a reference)
Burning Brakes
Joined: Mar 2003
Posts: 1,174
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From: NW MN
Re: Timing, Timing, Timing (chucks88)
Your second picture with the EST wire disconnected shows that your timing is slightly retarded or after top dead center(ATDC). You should be at 6 degrees BTDC which I belive is the second point above the big indent on you drawing. As said before the big indent is 0 degrees.
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Melting Slicks
Joined: Aug 2000
Posts: 2,925
Likes: 3
From: Dover NH
Re: Timing, Timing, Timing (86Pacecar)
Your second picture with the EST wire disconnected shows that your timing is slightly retarded or after top dead center(ATDC). You should be at 6 degrees BTDC which I belive is the second point above the big indent on you drawing. As said before the big indent is 0 degrees.
I think you will notice a difference once you have it right! :)
Melting Slicks
Joined: Apr 2002
Posts: 2,118
Likes: 0
From: St. Charles, MO Route 66 Corvette Club
Re: Timing, Timing, Timing (bjankuski)
Chuck: I just went out and took a digitial pic of the timing mark on my 89. I will email this to you. I replaced the water pump a few months ago and cleaned and painted the timing marker. The picture shows the "before" stamp and the advance timing marks to the "0" slot. Hope this helps as your marker has similiar stamps! PS: I cannot find your email. Send me a note if you want the digitial picture. Sam
[Modified by Sam Lam, 7:53 PM 10/16/2003]
[Modified by Sam Lam, 7:53 PM 10/16/2003]
Le Mans Master
Joined: Apr 2000
Posts: 6,341
Likes: 1
From: Shelton CT
Re: Timing, Timing, Timing (chucks88)
Damn chuck, you are missing about 6-8Degrees of timing.
I am sure that's some lso tperformance there. I knwo my car runs noticeably slower with 4 degrees timing. It'd probably run like garbage at 0. :D
I am sure that's some lso tperformance there. I knwo my car runs noticeably slower with 4 degrees timing. It'd probably run like garbage at 0. :D
Instructor
Joined: Aug 2003
Posts: 163
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From: Glendale Az
Re: Timing, Timing, Timing (chucks88)
The first picture shows your timing at 13 degrees advanced. The indent is zero degrees and each point out is 4 degrees. The second picture is at -4 degrees retarded. Your timing is way off. It should be at least 6 degrees advanced (above the big indentation), first inward point. Always set your timing with the est disconnected as the first picture doesn't even come into play. The computer is constantly moving the timing based on everything the computer sees. Good luck. :chevy
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
Cruise-In II Veteran
Re: Timing, Timing, Timing (MrNuke)
Another point Chuck, I remember you dropped your fuel pressure at Englishtown...after you get the timing advanced you might want a little more fuel.
Thread Starter
Safety Car
Joined: Oct 2001
Posts: 4,763
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From: Connectivette
Re: Timing, Timing, Timing (Topless87)
Thanks all, I'm heading out this morning to set it to 8 BTDC until I can get my hands on a scan tool that'll read knock counts. I'll give you some feedback after I go for a spin. :thumbs:
Safety Car
Joined: Nov 2001
Posts: 3,753
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From: Orange County California
Re: Timing, Timing, Timing (chucks88)
I think i am at 10* BTTD still after seeing the scale someonw put up here. Rick, you saw it last is that where we are at 10*??
All i know is i have more power then i can put on the pavement at this point. I am learing how to harness it better LOL
All i know is i have more power then i can put on the pavement at this point. I am learing how to harness it better LOL
4th Gear
Joined: Oct 2003
Posts: 4
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From: las vegas nevada
Re: Timing, Timing, Timing (robertpel9)
If you don't have a timing light in the future you can always adjust your timing by ear...I have had to do it several times and it would surprise you how accurate you can be..Mark
Melting Slicks
Joined: Aug 2000
Posts: 2,925
Likes: 3
From: Dover NH
Re: Timing, Timing, Timing (MUDDA)
If you don't have a timing light in the future you can always adjust your timing by ear...I have had to do it several times and it would surprise you how accurate you can be..Mark