install dist & set timing on 92 TPI
install dist & set timing on 92 TPI
I just reinstalled the distributor on my 92 TPI. i set #1 at about the 5 pm position with the #1 cylinder at TDC on the compression stroke.
OK. i think that is right.
Now do i have to unplug any plugs to set the timing and what should the base timing be set at?
thanks
chris
OK. i think that is right.
Now do i have to unplug any plugs to set the timing and what should the base timing be set at?
thanks
chris
Supreme Member

Joined: Jul 1999
Posts: 1,556
Likes: 28
From: Adrian, Mi, USA
Car: 1988 Pontiac Firebird Formula
Engine: 5.7 TPI
Transmission: 700R4
timing
You have to unplug the "set timing" thingie... I cant remember the keyword/tricky phrase for it at the moment. It is a single wire connector, roughly in the neighborhood of your a/c evaporator core. Brown wire with black stripe. Unplug, start motor, set timing to 6* BTDC, (consult your emissions label, but I think this is right) shut off motor, plug in connector, and away you go.
Member
Joined: Jul 2005
Posts: 460
Likes: 0
From: Jacksonville, Florida
Car: 1992 Camaro Z28
Engine: 5.7 LT1
Transmission: 4L60
Axle/Gears: 3.23's
Well the "timing thingie"
, is the EST. The ECM controls the timing via EST , so that when your engine overheats it retards the timing for safety measures. Or it will bump the timing in certain cases. If you don't disconnect the EST you will have a hard time adjusting the timing it will bounce around because the EST is constantly adjusting the timing especially while you are not moving. That can in some case (Ive seen this before) where they thought the erratic timing was the timing chain so they spent $300 dollars to get it fixed when all it was , is that they didnt disconnect their EST , also if you have a manual adjust timing in neutral or automatic in drive. Oh ya in latter models such as your 1992 and also my 1992 TPI, the EST should be located near the ignition coil. Good Luck
, is the EST. The ECM controls the timing via EST , so that when your engine overheats it retards the timing for safety measures. Or it will bump the timing in certain cases. If you don't disconnect the EST you will have a hard time adjusting the timing it will bounce around because the EST is constantly adjusting the timing especially while you are not moving. That can in some case (Ive seen this before) where they thought the erratic timing was the timing chain so they spent $300 dollars to get it fixed when all it was , is that they didnt disconnect their EST , also if you have a manual adjust timing in neutral or automatic in drive. Oh ya in latter models such as your 1992 and also my 1992 TPI, the EST should be located near the ignition coil. Good Luck Thread
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