Too early of a spark and the engine could sustain significant damage. Too late, and your engine could make little to no power. The distributor is a mechanical and electrical device that controls when the spark happens in each cylinder. You might be installing a new distributor because yours is broken, or because you want to upgrade to a more advanced or powerful unit. The distributor in your car is driven either directly or by a gear from your camshaft.
That means every time your camshaft spins one revolution, your distributor turns degrees as well. When you install your new distributor you want it to be in the exact same orientation so it is in sync with the rest of the engine and is sending a spark to the right spark plug at the right time.
Even being a few degrees off can cause your engine to backfire, knock or not run at all. Sometimes that bolt can be tricky to get to so you may need to remove some other stuff that is in the way.
If your vehicle needs to have the base timing set, make sure to leave the hold-down bolt or clamp loose enough so you can turn the distributor by hand, but not so loose that it spins freely.
How does the timing gear get oriented in the block and how does the distributor get dropped in? Any and all information that you can give me is really appreciated. I suggest you try to get an oridginal service manual or a cd version, that info is covered in detail of where to align the distributor.
From memory the distributor drive gear slot should point to the front left intake manifold retaining bolt when at tdc on 1 cylinder and timing marks on crank pulley and timing cover are aligned. Daves69 Well-Known Member. Adam Well-Known Member. The timing gear can be installed in any direction, as long as the 1 cylinder is at tdc 10 btdc is good and the dist cap is wired with 1 from where the rotor is.
That being said, I like to point it towards the left front. The cam gear can be rotated backwards with a large screwdriver, pull up as you twist.
The distributor will rotate as it drops in, so you must allow for that to ensure the tang on the bottom of the distributor shaft engages the slot in the drive gear. If it doesn't the dist will not drop all the way down to the block. Riverside area Moreno Valley. The distributor will drop straight down as there is only a slot to line up with unlike GM that has the drive gear on the bottom of the distributor.
I like the "thumb method" to set initial timing at 10 before tdc. Mark the distributor cap with chalk to identify the number one spark plug wire location. Remove the distributor cap. When the engine is at TDC, the rotor at the distributor's center should be pointing towards the number one spark plug wire, if not, turn the distributor until it is. Remove the distributor hold-down bolt to move the distributor.
Slide the old distributor out of the engine. When removing, take the old distributor cap off, but leave it connected to the spark plug wires. Note the location of the metal vacuum housing on the side of the distributor. Insert the new distributor into the engine, being sure to replace it so the vacuum housing is in the same position as the old distributor. In order for the distributor shaft to go into the engine completely, it needs to mesh with the oil pump gear.
This may require manually cranking the engine slightly to jiggle the distributor shaft in. Install the new rotor to the distributor and check to see if it lines up with the number one spark plug wire on the old distributor cap.
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