Ignition timing tab
Thread Starter
Junior Member
Joined: Feb 2004
Posts: 31
Likes: 0
From: Sweden
Car: Camaro RS Convertible
Engine: 305 TPI
Transmission: TH700R4
Ignition timing tab
Could we sort this out once and for all.....
I´m still not a 100% sure on how the timingtab should be used ?
I´m attaching this picture of how i think it works.
Could you please help me out here..
Thanks.
I´m still not a 100% sure on how the timingtab should be used ?
I´m attaching this picture of how i think it works.
Could you please help me out here..
Thanks.
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Seems completely backwards. The passenger side should be the driver's side, the front of the car should be the rear of the car, the slot marked "+8" should be zero, and each mark going up should be 2 degrees (Before Top Dead Center).
If you could get another picture that shows the marks and numbers to the right, that should clear it up.
If you could get another picture that shows the marks and numbers to the right, that should clear it up.
TGO Supporter
Joined: Jul 2003
Posts: 4,803
Likes: 2
From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
That was what i thought. What is the timing tab mounted to? But as five7 says, and i agree, in most that i have seen, there are an equal amount, if not more, marks indicating BTDC than ATDC.
Senior Member
Joined: Feb 2002
Posts: 788
Likes: 0
From: San Antonio, TX
Car: '99 HO Z28 / '03 Trailblazer
Originally posted by Rhydon
Posting a better picture (the old one was a bit confusing).
Posting a better picture (the old one was a bit confusing).
Trending Topics
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
phess has it right - "+" being BTDC, "-" being ATDC.
The "tabs" and "valleys" are not equally spaced. Each tick mark is two degrees, so the tabs are not of equal value.
The "tabs" and "valleys" are not equally spaced. Each tick mark is two degrees, so the tabs are not of equal value.
Thread
Thread Starter
Forum
Replies
Last Post
Ghettobird52
Tech / General Engine
16
Jul 5, 2024 11:18 PM






