King
Junior Member
- Joined
- Mar 7, 2016
- Posts
- 4
- Reaction score
- 0
- Ram Year
- 2002
- Engine
- 5.9 magnum
Hello all,
I've searched through the forums to find the answer but I may have another problem and need some expert advice.
I was changing out the timing chain cover gasket, upon removal i saw that my timing chain was waaaay too loose. So since I was ordering another one I figured I'd get an after market cam. Nothing crazy just something to compliment the Edelbrock heads and hughes intake I'd purchased last year.
So I went with setting the cam to stock setting (dot to dot) with the crank gear. I set valve lash.. then closed up the intake.... the distributor came our in order to install the cam at one point and I did turn the engine to set the gears from cam to crank.....
So now we're at the idiot on my part. I didn't research how to set the cam senor to the TDC rotor tooth to the distro. I set the truck to TDC marked the first pin available and plugged in all the wires.....
At this point the truck started and ran.... it was having some issues as of course you know, you have to match rotor tooth at tdc to the cam sensor notch at the base of the distro.....
so i decided to take all this apart and do it "correctly" and set TDC and match the rotor tooth to the cam sensor notch. I of course had to alter the position of the rotor gear as the base of the distributor has a small window of spin due to the lock nut....
Now, I cannot get the truck to start. I followed all docs I've found on the issue. What kills me is that it was running a couple of days before I tried this last procedure.
At this point it turns over and doesn't start, I can't take it to fuel resync since i can't even get it started.
Give it some thought and let me know, I'll be taking to the mechanic soon since i can't get this figured out... all ideas are welcome, change cam sensor, change crank sensor, reset pcm with clamping pos and neg wires together...please help.
REMOVAL
CAUTION: Base ignition timing is not adjustable on any engine. Distributors do not have built in centrifugal or vacuum assisted advance. Base ignition timing and timing advance are controlled by the Powertrain Control Module (PCM). Because a conventional timing light can not be used to adjust distributor position after installation, note position of distributor before removal.
1. Disconnect negative cable from battery
2. Remove air cleaner tubing.
3. Remove distributor cap from distributor (two screws).
4. Mark the position of distributor housing in relationship to engine or dash panel. This is done to aid in installation.
5. Before distributor is removed, the number one cylinder must be brought to the Top Dead Center (TDC)firing position.
6. Attach a socket to the Crankshaft Vibration Damper mounting bolt.
7. Slowly rotate engine clockwise, as viewed from front, until indicating mark on crankshaft vibration damper is aligned to 0 degree (TDC) mark on timing chain cover.
8. The distributor rotor should now be aligned to the CYL. NO.1 alignment mark (stamped) into the camshaft position sensor. If not, rotate the crankshaft through another complete 360 degree turn. Note the position of the number one cylinder spark plug cable (on the cap) in relation to rotor. Rotor should now be aligned to this position.
9. Disconnect camshaft position sensor wiring harness from main engine wiring harness.
10. Remove distributor rotor from distributor shaft.
11. Remove distributor holddown clamp bolt and clamp. Remove distributor from vehicle.
CAUTION: Do not crank engine with distributor removed. Distributor/crankshaft relationship will be lost.
INSTALLATION
If engine has been cranked while distributor is removed, establish the relationship between distributor shaft and number one piston position as follows:
Rotate crankshaft in a clockwise direction, as viewed from front, until number one cylinder piston is at top of compression stroke (compression should be felt on finger with number one spark plug removed). Then continue to slowly rotate engine clockwise until indicating mark is aligned to 0 degree (TDC) mark on timing chain cover.
1. Clean top of cylinder block for a good seal between distributor base and block.
2. Lightly oil the rubber O-ring seal on the distributor housing.
3. Install rotor to distributor shaft.
4. Position distributor into engine to its original position. Engage tongue of distributor shaft with slot in distributor oil pump drive gear. Position rotor to the number one spark plug cable position.
5. Install distributor holddown clamp and clamp bolt. Do not tighten bolt at this time.
6. Rotate the distributor housing until rotor is aligned to CYL. NO.1 alignment mark on the camshaft position sensor.
7. Tighten clamp holddown bolt to 22.5 Nm (200 in. lbs.) torque.
8. Connect camshaft position sensor wiring harness to main engine harness.
9. Install distributor cap. Tighten mounting screws.
10. Refer to the following, Checking Distributor Position.
Checking Distributor Position
To verify correct distributor rotational position, the DRB scan tool must be used.
WARNING: WHEN PERFORMING THE FOLLOWING TEST, THE ENGINE WILL BE RUNNING. BE CAREFUL NOT TO STAND IN LINE WITH THE FAN BLADES OR FAN BELT. DO NOT WEAR LOOSE CLOTHING.
1. Connect DRB scan tool to data link connector. The data link connector is located in passenger compartment, below and to left of steering column.
2. Gain access to SET SYNC screen on DRB.
3. Follow directions on DRB screen and start engine. Bring to operating temperature (engine must be in "closed loop" mode).
4. With engine running at idle speed, the words IN RANGE should appear on screen along with 00. This indicates correct distributor position.
5. If a plus (+) or a minus (-) is displayed next to degree number, and/or the degree displayed is not zero, loosen but do not remove distributor holddown clamp bolt. Rotate distributor until IN RANGE appears on screen. Continue to rotate distributor until achieving as close to 0° as possible. After adjustment, tighten clamp bolt to 22.5 Nm (200 in. lbs.) torque.
Do not attempt to adjust ignition timing using this method. Rotating distributor will have no effect on ignition timing. All ignition timing values are controlled by Powertrain Control Module (PCM).
After testing, install air cleaner tubing.
I've searched through the forums to find the answer but I may have another problem and need some expert advice.
I was changing out the timing chain cover gasket, upon removal i saw that my timing chain was waaaay too loose. So since I was ordering another one I figured I'd get an after market cam. Nothing crazy just something to compliment the Edelbrock heads and hughes intake I'd purchased last year.
So I went with setting the cam to stock setting (dot to dot) with the crank gear. I set valve lash.. then closed up the intake.... the distributor came our in order to install the cam at one point and I did turn the engine to set the gears from cam to crank.....
So now we're at the idiot on my part. I didn't research how to set the cam senor to the TDC rotor tooth to the distro. I set the truck to TDC marked the first pin available and plugged in all the wires.....
At this point the truck started and ran.... it was having some issues as of course you know, you have to match rotor tooth at tdc to the cam sensor notch at the base of the distro.....
so i decided to take all this apart and do it "correctly" and set TDC and match the rotor tooth to the cam sensor notch. I of course had to alter the position of the rotor gear as the base of the distributor has a small window of spin due to the lock nut....
Now, I cannot get the truck to start. I followed all docs I've found on the issue. What kills me is that it was running a couple of days before I tried this last procedure.
At this point it turns over and doesn't start, I can't take it to fuel resync since i can't even get it started.
Give it some thought and let me know, I'll be taking to the mechanic soon since i can't get this figured out... all ideas are welcome, change cam sensor, change crank sensor, reset pcm with clamping pos and neg wires together...please help.
REMOVAL
CAUTION: Base ignition timing is not adjustable on any engine. Distributors do not have built in centrifugal or vacuum assisted advance. Base ignition timing and timing advance are controlled by the Powertrain Control Module (PCM). Because a conventional timing light can not be used to adjust distributor position after installation, note position of distributor before removal.
1. Disconnect negative cable from battery
2. Remove air cleaner tubing.
3. Remove distributor cap from distributor (two screws).
4. Mark the position of distributor housing in relationship to engine or dash panel. This is done to aid in installation.
5. Before distributor is removed, the number one cylinder must be brought to the Top Dead Center (TDC)firing position.
6. Attach a socket to the Crankshaft Vibration Damper mounting bolt.
7. Slowly rotate engine clockwise, as viewed from front, until indicating mark on crankshaft vibration damper is aligned to 0 degree (TDC) mark on timing chain cover.
8. The distributor rotor should now be aligned to the CYL. NO.1 alignment mark (stamped) into the camshaft position sensor. If not, rotate the crankshaft through another complete 360 degree turn. Note the position of the number one cylinder spark plug cable (on the cap) in relation to rotor. Rotor should now be aligned to this position.
9. Disconnect camshaft position sensor wiring harness from main engine wiring harness.
10. Remove distributor rotor from distributor shaft.
11. Remove distributor holddown clamp bolt and clamp. Remove distributor from vehicle.
CAUTION: Do not crank engine with distributor removed. Distributor/crankshaft relationship will be lost.
INSTALLATION
If engine has been cranked while distributor is removed, establish the relationship between distributor shaft and number one piston position as follows:
Rotate crankshaft in a clockwise direction, as viewed from front, until number one cylinder piston is at top of compression stroke (compression should be felt on finger with number one spark plug removed). Then continue to slowly rotate engine clockwise until indicating mark is aligned to 0 degree (TDC) mark on timing chain cover.
1. Clean top of cylinder block for a good seal between distributor base and block.
2. Lightly oil the rubber O-ring seal on the distributor housing.
3. Install rotor to distributor shaft.
4. Position distributor into engine to its original position. Engage tongue of distributor shaft with slot in distributor oil pump drive gear. Position rotor to the number one spark plug cable position.
5. Install distributor holddown clamp and clamp bolt. Do not tighten bolt at this time.
6. Rotate the distributor housing until rotor is aligned to CYL. NO.1 alignment mark on the camshaft position sensor.
7. Tighten clamp holddown bolt to 22.5 Nm (200 in. lbs.) torque.
8. Connect camshaft position sensor wiring harness to main engine harness.
9. Install distributor cap. Tighten mounting screws.
10. Refer to the following, Checking Distributor Position.
Checking Distributor Position
To verify correct distributor rotational position, the DRB scan tool must be used.
WARNING: WHEN PERFORMING THE FOLLOWING TEST, THE ENGINE WILL BE RUNNING. BE CAREFUL NOT TO STAND IN LINE WITH THE FAN BLADES OR FAN BELT. DO NOT WEAR LOOSE CLOTHING.
1. Connect DRB scan tool to data link connector. The data link connector is located in passenger compartment, below and to left of steering column.
2. Gain access to SET SYNC screen on DRB.
3. Follow directions on DRB screen and start engine. Bring to operating temperature (engine must be in "closed loop" mode).
4. With engine running at idle speed, the words IN RANGE should appear on screen along with 00. This indicates correct distributor position.
5. If a plus (+) or a minus (-) is displayed next to degree number, and/or the degree displayed is not zero, loosen but do not remove distributor holddown clamp bolt. Rotate distributor until IN RANGE appears on screen. Continue to rotate distributor until achieving as close to 0° as possible. After adjustment, tighten clamp bolt to 22.5 Nm (200 in. lbs.) torque.
Do not attempt to adjust ignition timing using this method. Rotating distributor will have no effect on ignition timing. All ignition timing values are controlled by Powertrain Control Module (PCM).
After testing, install air cleaner tubing.
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