Line the mark on the crank pulley up with the mark on the timing cover, and line the distributor rotor up with the mark on the pickup plate.
set it at top dead center the computer does the rest
10 degrees before top dead center. only the 87-91 can be adjusted. the92 and up are not adjustible
Chilton manual says 5 degrees after top dead center.
The timing should be set at TDC (Top Dead Center). The timing marks are located on the vibration damper and timing chain cover.
Timing on this truck is at top dead center for both manual and automatic transmissions. If it is an original California truck with all the smog devises time it at 4 degrees before top dead center.
TDC is top dead center it pretains to the position of the pistons. The number one piston has to be TDC when you put on the timing chain or belt for it to work properly.
The timing should be set at 12 degrees before top dead center. If this is a Canadian heavy duty engine, it should be set at 2 degrees after top dead center.
Timing degrees? The timing is not adjustable, the timing chain is set with the dots and the plated links lined up and the computer takes it from there. When the chain is being installed the #1 piston will not be at top dead center.
bring number 1 piston up to top dead center point rotorbutton to number 1 sparkplug wire on the distributor cap can you get more preformance by the timing
Initial timing is set by lining the rotor up with the mark on the pickup plate in the distributor with the crankshaft at #1 top dead center. The timing is then fine tuned to 0 degrees with a scan tool. It can not be done with a timing light.Initial timing is set by lining the rotor up with the mark on the pickup plate in the distributor with the crankshaft at #1 top dead center. The timing is then fine tuned to 0 degrees with a scan tool. It can not be done with a timing light.
The timing for the 1977 225 slant 6 cylinder should be set at 2 degrees before top dead center. This applies to both the manual and automatic transmissions.
looking at the timing marks from the top left to right you have 5 degrees after top dead center, then top dead center then 5 degres 10, 15 then 20 befor top dead center. the timing is 7 degrees before top dead center