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Distributor cap location

7DCUDA383A

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I am working on changing the plugs and wires soon so I labeled them where they are now . It looks like they are facing the wrong way and the vacuum is pointing towards the battery . I know when I drove it home 2 months ago it rattle on acceleration , is this why . When the weather gets warmer it's going back to the shop to fix some things so just wondering if I can fix this , I am not a mechanic but good with my hands .
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MoparCarGuy

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Some info to get your distributor oriented with the vacuum advance in the correct "arc" for adjustment.
Start by checking that the oil pump drive slot is correct with the engine at #1 TDC on the compression stroke (your balancer should be at TDC as well). You might be off a tooth which would alter your vacuum advance canister's proper "start" position.

Your wires also appear to be 180° out which would indicate you need to pull the distributor out of the oil pump drive, rotate the rotor 180°, and drop it back in. The wires will need to move to the locations in the diagram below as well to keep the timing correct.

Let us know what you find.
383-440 DISTRIBUTOR OIL PUMP DRIVE INSTALL.jpg


Big-block Firing Order and Distributor Rotor Position.png
 
Last edited:

Bret Schneider

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You'll want to get some spark plug wire looms and get those wires separated correctly. A lot of potential for ignition cross firing shown in those pictures. Could be the cause of the ignition rattle you mentioned.
 

7DCUDA383A

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Location
60 Miles West of STL
Some info to get your distributor oriented with the vacuum advance in the correct "arc" for adjustment.
Start by checking that the oil pump drive slot is correct with the engine at #1 TDC on the compression stroke (your balancer should be at TDC as well). You might be off a tooth which would alter your vacuum advance canister's proper "start" position.

Your wires also appear to be 180° out which would indicate you need to pull the distributor out of the oil pump drive, rotate the rotor 180°, and drop it back in. The wires will need to move to the locations in the diagram below as well to keep the timing correct.

Let us know what you find.
View attachment 135170

View attachment 135171
Been trying to find some videos from start to finish on install of the dist and wires , not many out there that I can see .
 

7DCUDA383A

Well-Known Member
Joined
Sep 11, 2024
Messages
149
Reaction score
38
Location
60 Miles West of STL
You'll want to get some spark plug wire looms and get those wires separated correctly. A lot of potential for ignition cross firing shown in those pictures. Could be the cause of the ignition rattle you mentioned.
I'm looking for some , I'm installing new wires soon when it gets warmer , crimping my own to fit .
 
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