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BRINGING IT ALL TOGETHER.... A's, G's & E's


5 posters

    Electronic Distributor in 250 L6

    Kakster
    Kakster


    Number of posts : 236
    Location : Torrance, CA
    Registration date : 2008-05-18

    Electronic Distributor in 250 L6 Empty Electronic Distributor in 250 L6

    Post by Kakster Sat Jul 30, 2011 3:58 pm

    I got an inexpensive electronic distributor off of E bay a while back and I recently installed it. I got the motor started but once I hooked the vacuum advance hose up the motor ran terrible. I watched the timing mark with a strobe and saw that as I reved to motor up it would advance way up and the motor ran bad, back firing etc. If the vacuum advance is disconnected the motor runs OK at higher rpms but runs rough at idle. I can't see that the distributor has any vac advance adjustment so I am asking any one for advice. Thanks for any help you guys might provide. Question
    DanTheVanMan
    DanTheVanMan
    Commissioner
    Commissioner


    Number of posts : 7899
    Location : Escanaba, Michigan
    Age : 62
    Registration date : 2008-10-08

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    Post by DanTheVanMan Sat Jul 30, 2011 4:16 pm

    Kakster,
    Hate to ask but where did you set your initial timing at? Kinda sounds like you idle timing is set a few degrees BTC.. But I've had a few L6 engines that just wouldn't take a HEI for some reason.


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    donivan65
    donivan65
    Governor
    Governor


    Number of posts : 12218
    Location : San Diego, California
    Registration date : 2008-05-12

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    Post by donivan65 Sat Jul 30, 2011 5:45 pm

    Normally you start off at a base timing of 6 degrees,,,,,,the centrifugal weights add another 12 and finally the vacuum adds another 12,,,,,,,,But has the timing mark moved on the balancer? The engine has to idle good then you worry about the other 2 advances doing their thing,,,,,,,and are you running ported vacuum to the distributor so it gets none at idle,,,,,,does that distributor have weights in it and if so, are they free and the springs good? What happens if you turn the distributor until it runs the best it can,,,,,do you still get advance problems??? AND,,,,,,,,did the engine run good BEFORE you fixed it?
    jrinaman
    jrinaman


    Number of posts : 890
    Location : zelienople,pa.
    Age : 59
    Registration date : 2011-03-10

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    Post by jrinaman Sat Jul 30, 2011 7:28 pm

    had similar problems with mine, and found that the vacume would advance it slightly at idle. evan though just correcting the vacume would of fixed it, i got an adjustable vacume, different springs and set it up for 4 d at idle and 38 d at 2500. no vacume at idle. made a huge difference. summit has it for around 30 bucks. also check that you have full voltage at distributor. points distributor had a voltage reduction in the line.
    panelmanrd
    panelmanrd


    Number of posts : 801
    Location : kcmo
    Age : 62
    Registration date : 2009-10-04

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    Post by panelmanrd Sun Jul 31, 2011 7:29 pm

    I put one of those on a friends van with the same problem,
    found that the vacum advance was going to far, it was adjustable
    with an allen wrench inside the vacum unit where you put the vacum
    hose on. Backed it way off, works nice now.
    Kakster
    Kakster


    Number of posts : 236
    Location : Torrance, CA
    Registration date : 2008-05-18

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    Post by Kakster Mon Aug 01, 2011 6:11 pm

    All you guys thanks for the tips and advice. I will reexamine the install and see if I can get my beast to run right.

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