Please submit instructions for finding top dead center of number 1 piston on compression stroke for 1992 Toyota 4A-FE engine.
Mar 23, 2006 at 8:23 AM
1992 Toyota 4A-FE No. 1 TDC
TOYOTA
BOBB1
- MEMBER
- 1 POST
Find the no.1 spark plug, remove it. Now put a piece of cloth on the opening, place your thumb on it to seal the opening. Now disconnect the coil wire, the one that goes to the distributor and ground it. Have someone crank it over in short burst when you feel the pressure on your thumb, stop. Look at the vibration damper line the notch and scale to 0deg by turning the center bolt of the crankshaft. Stick a screwdriver in the plug hole, the piston should be all the way up. and the rotor should be pointing to the no.1 plug tower. You have to open the distributor cap to check this.
Good Luck!
Good Luck!
Mar 23, 2006 at 12:27 PM
Suggested Repair
Remove the No. 1 spark plug, cover the hole with cloth, and seal it with your thumb. Disconnect and ground the coil wire to the distributor. Crank in short bursts until compression pressure is felt, then stop. Turn the crankshaft center bolt to align the vibration damper notch with 0 degrees. Confirm the piston is fully up and that the distributor rotor points to the No. 1 plug tower.
Conversation Summary
The owner asked how to find top dead center of the No. 1 piston on the compression stroke for a 1992 Toyota 4A-FE. The expert advised removing the No. 1 plug, feeling compression pressure while cranking with the coil wire grounded, aligning the damper mark to 0 degrees, and verifying piston height and rotor position at the No. 1 tower.