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Q: How do you know if a Jeep 4.2L engine is at top dead center with the distributor?
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Why is a '87 Jeep Comanche cranking but not starting when you have even connected it jumper cables?

The Jeep has a TDC sensor on the bell housing that tells the computer when the distributor is at top dead center (TDC). If it is inop the jeep will not run


How do you set before top dead center on a 350 Chevy?

with a timing light, assuming this is an older engine that still uses a distributor.


How do you install mopar small block distributor?

get #1 cylinder on top dead center and then put the distributor rotor bug a hair before the #1 plug wire on the distributor and drop in down into the engine and all should be fine.


How do you remove the distributor drive shaft on a 1972 beetle?

The distributor is a single unit. Set the engine to top dead center. Make a witness mark on the distributor body and the engine case to reassemble and re-align the unit. Remove the distributor clamp holding the distributor in place. Remove and mark the wires. Pull the distributor straight up and out of the engine case. The shaft is keyed and should be in the body of the distributor. Reassembly is the reverse procedure.


How do you set an engine in its dead center position?

Top dead center on an engine is defined as when the piston is farthest from the crankshaft. Bottom dead center is when the piston is closest to the crankshaft on the engine.


How do you tell where number one is at on dist cap?

Rotate engine to TDC (top dead center) Where ever the rotor on the distributor is pointing, that's where #1 goes.


Where is top dead center on the distributor on a 87 Toyota supra 7mgte engine?

there is no distrobutor on a GTE only a GE motor the GTE is coil/ignitor ingnition


What cylinder would be Top dead center for 1989 jeep 4.2?

Each cylinder has a top dead center position.


Why does engine run if the distributor is turned to fire at 45 degree before top dead center but dies if rotated back towards original marked position?

Distributor is installed off a tooth, or wires are on the wrong spots.


Why wont my 97 Jeep Grand Cherokee start?

battery is dead, alternator is blown, needs new distributor, blown engine, head gasket is out, could be a number of things, take it in to a mechanic


Does your pistons have to be top dead center to change the heads?

No, you are going to turn the engine when you set valve lash anyway. It only helps to have no 1 at tdc if you are pulling distributor & is not needed for that.


What degree before top dead center is the distributor on a 2992 Isuzu amigo 2.6l?

there should be numbers on your distributor cap inside and out