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Unread 01-19-2014, 07:13 PM   #1
Ironhorse2021
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Oil leak from distributor

Hi all,
I did a search but didn't find my answer. I have oil leaking from the drain hole below my distributor cap (in the alum body). I removed the shaft from the housing and was expecting to see a seal of some kind. Instead there are just the two bushings. Some minor wear in the shaft but nothing too bad. Looks like oil is traveling up the shaft into the dist body. Why is this happening ? What is the fix ? Thanks for your help.

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Unread 01-19-2014, 08:20 PM   #2
Truck633
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Excessive blow-by in the crankcase. I battled the same problem with my old 258. If I recall, someone on here had mentioned a better PCV valve, however it didn't work on my case. I had to rebuild! (it was time anyway)
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Unread 01-19-2014, 08:28 PM   #3
LumpyGrits
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Clean/replace your PCV valve and see if that fixes it.
LG
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Unread 01-20-2014, 03:29 AM   #4
86cj74.2L
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Is the play in your distributor up and down or side to side?

Side to side is bad.

When mopar came out with the 4.0 version of the 258 they went to a fixed orifice crank case ventilation system.

It may help. I know I put one on my Saturn and it helped oil usage and idle quality.
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Unread 01-21-2014, 06:51 PM   #5
Ironhorse2021
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Thanks for all the input. I've checked the Pcv valve at its seems to rattle freely but will replace it anyways. I do have a breather in my valve cover along with the pcv so I can't see how I could have crank case pressure problems ???

I have a little side to side slop in the dist shaft so maybe some bushing wear is the problem. A friend is giving me his old dist so I can compare them.
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Unread 01-21-2014, 07:37 PM   #6
LumpyGrits
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There should be ZERO play(up/down, side to side)in that dizzy shaft.
LG
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Unread 01-21-2014, 07:43 PM   #7
Matt1981CJ7
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Is your dizzy a reman'd Motorcraft by chance? If so, I had the same problem with one straight from the box. A replacement didn't have the same problem.

Matt
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Unread 01-21-2014, 08:29 PM   #8
86cj74.2L
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As a reminder there is also a gasket between the distributor base and the engine block.
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