Distributor – Spark Plug Wires

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  • #426989

    I am making up the ignition wires of my 836. I have none to match up, so need to run each individual wire.

    My question is, since I don’t have the head on I am trying to figure out the orientation of the distributor so I can match up the numbers on the cap.

    I think the easiest question is where does the data plate face when installed.

    Any other advice is appreciated.

     

    Bill

    #426991

    Bill, the distributor faceplate on my 845 faces forward. I believe your ’33 has the same 662J distributor. Here is a picture of my cap with the wires. I did this by pulling the wires in the tube so you might double check that this matches the firing order.

    On mine I didn’t realize that there seemed to be only one combination of the distributor/gear pump mesh that would allow the distributor to face forward and allow the wires to come out in the proper direction. The distributor drive key is slightly offset if I remember correctly so it isn’t just a matter of turning the distributor rotor 180. I ended up having to drop the pan and remove the oil pump and find by trial and error a mesh that would work between the cam and distributor/oil pump drive gears. There is probably a smarter way to do it.

    #426992

    Jim,

    Thanks for coming to the rescue. Another issue I am struggling with is the oval grommet in the spark plug wiring tube. If you look above the #4

    you can see the 4 wires entering the conduit. Can’t seem to find an appropriate grommet for that hole.

     

    Bill

    #426993

    I don’t know if this was consistent, but this is from 1930 and covered the oil pump alignment in the 8’s.Service letter P-515

    #426994

    Mark,

    That is great. Thanks for the help.

    I will let you know how it turns out.

     

    Bill

    #426996

    Bill, I had no luck finding a grommet like that, I still had one marginal original and used it but not the other. Maybe someone else has found something.

    #426997

    This comes to mind, there’s a minimum order length of 10 feet so plenty to work with until you get the length right. Putting the seam under the wires should hide it from view. I haven’t ordered any yet but there’s many sizes and styles to choose from.

     

    https://www.mcmaster.com/rubber-edge-trim/inside-width~1-32/outside-height~1-4/

     

    #426999

    Great idea, thanks!

    #427001

    Please let me know how it works out with the edging, I’m still a ways off of needing it.

    This might explain why I had that service letter picture so easily available: I spent time today setting my oil pump back in the right orientation which was a lot easier when I had it 180 degrees off… that only took one attempt, getting it right took 6 or 7 as I kept hitting one tooth either side of the right one. Now that’s done I can get the pan back up while I wait on my head from the machine shop.

    #427022

    Ok, here is a McMaster-Carr fix. Part 96005217. It is listed as a 1 3/8″ hole, but the ID is 1″

    After a couple of failed measurement attempts I was able to find a 1″ ID grommet for 1/16″ sheet metal.

    With much coaxing, prodding and levering, along with some words from the dark part of my vocabulary, I was able to get the grommet in the oval opening.

    The plug wires are a tight fit but you can trim the slot a little if needed. It is heavier than the original and I might try the next size down but this eliminates the raw edges for about $1 per opening.

    #427237

    Grommets for the individual wires I got from Harbor Freight for less than $5

    Harness Grommet Set, 180 Pc. (harborfreight.com)

    #427308

    Just by chance, does anyone have the length of the individual distributor to spark plug leads?

    Parts book says 148 1/2″ of cable but not the individual lengths.

    I can puzzle it out, but was hoping for a short cut. Lazy I guess.

    An additional 37″ coil to distributor is stated in the parts book, so I figured that one out.

    #427310

    Tom Barrett advised that the ’30 Parts book lists the spark plug wire lengths, but he has, thru unfortunate circumstances’,  loss access to his copy.

    Does anyone have a copy and if so could they either list the lengths 1-8, or scan a copy?

     

    Thanks

    #427311

    Bill,

    Is this what you are looking for?

     

    #427312

    David,

    Ah the Holy Grail.

    Thanks for taking the time.

    Bill

     

    #427315

    David and Tom,

    It works out that the ’30 cars is a little less than 1.5″ longer with 159.5″ vs the 148.5″ on the ’33.

    I guess that is to compensate for the Cobra Head?

    Interesting. Thanks for the help.

     

    Bill

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