How do you set the timing on a mechanical advanced distributor?
How do you set the timing on a mechanical advanced distributor?
Initial timing is set by loosening the distributor hold-down bolt and rotating the distributor body. This changes the relationship between the distributor body and the spinning rotor. Twisting the distributor opposite to the direction of rotation advances the initial timing. Next is mechanical advance.
How much timing does mechanical advance add?
Mechanical advance systems generally add between 20 and 30 degrees of timing. Adding the mechanical and initial values together generates the total timing. As an example, 10 degrees of initial and 24 degrees of mechanical advance creates 34 degrees BTDC of total timing.
What should the timing be on a Chevy 383 Stroker?
Bring the engine RPM up to 2500-3000 RPM. Assuming that the centrifugal advance weights and springs have reached the maximum mechanical advance at the above RPM range (this can be adjusted by lighter or heavier combination of springs), set the timing at 32-38 degrees. Do not exceed 40 degrees.
What should the BTDC be on a Chevy 383 Stroker?
Your 28 degrees BTDC at 1000 RPM more than likely has got the initial and some mechanical advance together because of the RPM. With the engine fully warmed up and the choke fully open, dis-connect and plug the vacuum advance hose from the distributor. Bring the engine RPM up to 2500-3000 RPM.
What should the timing be on a Chevy small block motor?
When the rpm is raised to 2500, the mechanical advance takes over and increases the advance to 32 degrees BTDC. The timing is set at 4 degrees initial to allow the engine to turn over much easier when starting. This is easier on the starter. Lift the vehicle’s hood and remove the air cleaner.
What’s the timing on a ZZ 383 crate motor?
ZZ 383 crate motor with gm hi-po hei dist. 10 initial, 32 total, all in at 3000. No vacume adv. just 22 deg mech. Fast Burn heads, works well. You’re going to need to find out what you engine likes with timing fully advanced.
Bring the engine RPM up to 2500-3000 RPM. Assuming that the centrifugal advance weights and springs have reached the maximum mechanical advance at the above RPM range (this can be adjusted by lighter or heavier combination of springs), set the timing at 32-38 degrees. Do not exceed 40 degrees.
Your 28 degrees BTDC at 1000 RPM more than likely has got the initial and some mechanical advance together because of the RPM. With the engine fully warmed up and the choke fully open, dis-connect and plug the vacuum advance hose from the distributor. Bring the engine RPM up to 2500-3000 RPM.
When the rpm is raised to 2500, the mechanical advance takes over and increases the advance to 32 degrees BTDC. The timing is set at 4 degrees initial to allow the engine to turn over much easier when starting. This is easier on the starter. Lift the vehicle’s hood and remove the air cleaner.
ZZ 383 crate motor with gm hi-po hei dist. 10 initial, 32 total, all in at 3000. No vacume adv. just 22 deg mech. Fast Burn heads, works well. You’re going to need to find out what you engine likes with timing fully advanced.
