You may have to continue to set the distributor timing position by feel of how smooth the engine runs if the distributor was incorrectly installed or you can go through the process of getting everything correctly lined up and go from there as your shop manual will discribe. The engine idle speed must be set to the recommended value too as the mechanical advance inside the distributor must not affecting the timing as it’s adjusted by moving the distributor. What is the firing order of a 1956 Ford t bird 312 motor 15426378 counter-clockwise. Normally for setting timing the vacuum line to the distributor is disconnected and the vacuum port on the engine that supplies vacuum to the distributor plugged with a rubber cap to prevent an air leak. According to the 1956 Thunderbird manual the 6 cyl. Downside is the timing marks are now useless. ![]() By moving the firing order of the spark plug wires in the distributor and readjusting the timing by moving the distributor until the engine runs smooth will make it work. The wide mark is TDC (Top Dead Center), each mark after the wide mark represents 2, 4, 6, 8 and 10 degrees before TDC. The ignition timing can be set using marks on the vibration damper. The firing order is 1-5-4-8-6-3-7-2, distributor turns counter-clockwise. The timing marks and running engine won’t line up as you are finding. SOURCE: firing order and timing for 292 ford. Sounds like the distributor might be installed off time, that is it’s off by one tooth on the distributor shaft. The 1994-5 Mustang and all Explorers use a unique front cover and water pump. They use a reverse rotation water pump and front cover. Manual transmission Thunderbirds-be they standard three-speeds or three-speeds plus selectable electric overdrive-had 8.4-compression and made 10 fewer horsepower and seven fewer foot-pounds of torque. Except for the 1983-84 Mustangs, all of these engines are roller cam equipped. Points and condenser have about 200 miles on them but that was over a 20 year period. They use the 351W firing order, 1-3-7-2-6-5-4-8. I checked the points - the gap is about 0.015, as recommended in the manual. As I rotate the distributor the marks come closer to the pointer but the engine runs rougher and almost dies. engines which have mechanical valve lifters, and a firing order of 1-5-4-8-6-3-7-2, crank the engine until No.1 piston is near top center on the end of the compression stroke and adjust the following valves: No.1 exhaust, No.4 exhaust, No.5 exhaust, No.1 intake, No.2 intake, No.7 intake. The marks are about 1 inch away from the pointer (before removing the vacuum the pointer was close to the 10 degree mark but bouncing), idle is set about 6-700 rpm. ![]() I wanted to get a better timing setting so I disconnected the vacuum line (as recommended in the manual - why remove the vacuum lines?) at the distributor and put tape over the hole and also put tape over the line going to the carburetor. I initially set the timing with the vacuum hose connected, the marks jump around pointer but I can get it set close to about 10 degrees - is this a vacuum leak issue? The car idled OK but has a consistent popping and engine jumps slightly when the timing is set close to the marks but seems to smooth out if the timing marks are farther away from the pointer -maybe 1 inch away from the pointer. Need some help getting the timing set on my '57 with 312/4 brl.
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