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Subject: Found an odd distributor

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Farmer Dan    Posted 10-18-2018 at 15:31:09 [URL] [DELETE]        [Reply] [Email]  
  • Found an odd distributor
  • Just curious what the start would indicate?


    Tim Daley(MI)    Posted 10-21-2018 at 09:32:24 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Found an odd distributor
  • What would really be rare and odd is to find an original cast iron distributor.

    Tim Daley(MI)

    Farmer Dan    Posted 10-21-2018 at 09:56:42 [URL] [DELETE]        [Reply] [Email]  
  • Re: Found an odd distributor
  • never seen a cast iron one

    Tim Daley(MI)    Posted 10-20-2018 at 04:28:16 [URL] [DELETE]        [Reply] [No Email]  
  • AFTERMARKET PARTS
  • Last night I was looking on fleabay at front mount distributors and observed these interesting things. Most new aftermarket units appear to be made by the same manufacturer. I base this on the way the bases are casted and finer points like the vent plugs being pressed in and the breaker plates all look the same with the exact same parts. That's not a surprise as there are probably not a lot of suppliers because the market doesn't justify a lot of competition. What I found interesting is the price range of these units is all over the map. I saw units listed at $79 all the way up to $250 -all for the identical part! Further observation was that one of the prominent "reliable" aftermarket on-line parts sellers has a base only, no guts or anything else listed at $150 and the same seller has a complete unit with cap listed at $109!!! Why would anyone deal with them? I'm just saying, if you HAVE to buy a new aftermarket part, do business with one of the better suppliers like Just8Ns. Dan recently discovered that they make and sell the distributor coil contact screw, p/n 91A-12159 EXACTLY like the original if you are looking for one.

    Tim Daley(MI)

    Farmer Dan    Posted 10-20-2018 at 06:15:35 [URL] [DELETE]        [Reply] [Email]  
  • Re: AFTERMARKET PARTS
  • That company would be WAI Global. They make parts for a lot of companies and Tisco is just a small percentage of their business.

    Tim Daley(MI)    Posted 10-19-2018 at 05:05:41 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Found an odd distributor
  • That isn't an OEM FORD part. The originals had cast raised characters, not cast recessed, or stamped. The STAR is just the mfg. TM. They tried to match the OEM FORD unit with the '3'. Originals had a '2' or a '3' cast raised. The manufacturer may have been licensed by FORD to use the p/n like that. Yes, a poorly machined cam bore -way off center, not necessarily a poor casting, and even more susceptible to questions. FORD would never allow that to pass QC.

    Tim Daley(MI)

    Tim Daley(MI)    Posted 10-19-2018 at 08:56:32 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Found an odd distributor
  • Here are some pictures of the OEM Ford Front Mount distributor, p/n 9N-12000 assembly. The base casting number is 9N-12131 as shown in cast raised characters. Casting numbers are never listed in the parts books, only assembly numbers and individual parts are. The circled cast raised (2) is simply a mold number. Another identifier of an OEM unit is the vent and drain hole plugs shown.


    FORD 9N-12000 DISTRIBUTOR BASE w/ VENT AND DRAIN PLUG SHOWN:

    9N-12131 BASE CASTING NUMBER:

    Note the cracked aluminum boss around the cam and bushing end. This is what happens when you install the unit 180° off. I keep this as a reminder of what not to do.

    Tim Daley(MI)

    Farmer Dan    Posted 10-19-2018 at 07:19:25 [URL] [DELETE]        [Reply] [Email]  
  • Re: Found an odd distributor
  • Looks like I have 6 distributors with 3 bad housings. Not doing good so far.

    Tim Daley(MI)    Posted 10-19-2018 at 15:40:44 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Found an odd distributor
  • I those were purchased on fleabay and the seller did not specify the bases were junk/cracked, you have case for refunds. Might not be worth the hassle of returning but many times a decent seller will grant a refund and tell you to keep the item.


    Tim Daley(MI)

    Rustyal    Posted 10-19-2018 at 13:23:11 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Found an odd distributor
  • That’s sounds about right. You find more bad than good. I would check to see if the bore is in the center of the block mounting area before calling it bad.

    Tim Daley(MI)    Posted 10-19-2018 at 15:59:34 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Found an odd distributor
  • Not sure what you mean Al -the bore on the timing gear on the block or the base? The bore on the unit would be machined at the same time when the two mounting holes were drilled -everything must be square to the world. I thought maybe the machining on the unit was off because it was not set in the drilling fixture correctly, but if you look at the two mounting holes compared to the 3" pilot diameter and the center bore, the holes are not shifted. They would be off location on the ears, shifted the same way as the bore. Thus since the part was machined all at the same time, there is no way the bore can be off when unit is mounted to the engine timing gear face via the two 5/16 bolts.

    Tim Daley(MI)

    TheOldHokie    Posted 10-19-2018 at 18:36:22 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Found an odd distributor
  • As long as the three circles are concentric the centering of the bore in that center section of the casting is meaningless. If you can determine that bore is off center from the other two circles from that picture you have better eyes than I do.

    TOH

    Tim Daley(MI)    Posted 10-20-2018 at 03:49:22 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Found an odd distributor
  • Yeah, my point, the base is machined complete all in one operation. If casting was misaligned in fixture, everything will be off as demonstrated in the picture, but all still correctly aligned to each other. I think the casting was made bad, the cope and drag were skewed in the sand mold. That would explain the bore and 3" pilot diameter being off center to the casting shape but the two mounting holes appear to be located good on the ears. The machining fixture would have been made to locate the part off of certain casting points, probably the ears. Just my theory. I have not seen another base as far off as this one.

    Tim Daley(MI)

    Dave Smith    Posted 10-18-2018 at 16:38:34 [URL] [DELETE]        [Reply] [Email]  
  • Re: Found an odd distributor
  • Dan, That bore for the shaft seems to be off center. I have one like that, that is.
    The rotor is closer to the distributer cap contacts on one side than the other.

    put it together and watch through the hole at the top to see the clearance between the rotor and the cap contacts.
    Dave <*)))><

    Farmer Dan    Posted 10-18-2018 at 16:53:07 [URL] [DELETE]        [Reply] [Email]  
  • Re: Found an odd distributor
  • I think its the casting was poured wrong, I'll check after I find my calipers. Or like you say watch the rotor and cap spacing.

    Dave Smith    Posted 10-18-2018 at 17:25:06 [URL] [DELETE]        [Reply] [Email]  
  • Re: Found an odd distributor
  • also check the point gap on all 4 positions.
    The points mounted on a separate plate may be affected.
    Dave <*)))><

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