WD style rotor and spark plug wires?
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=178907
Printed Date: 02 Oct 2025 at 3:09am
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Topic: WD style rotor and spark plug wires?
Posted By: garden_guy
Subject: WD style rotor and spark plug wires?
Date Posted: 08 Mar 2021 at 1:38pm
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So looking at ignition tune up kits, and I see they all basically include the first rotor... However, on a few WDs I have worked on, I have seen the style with the J hook tab. Does it matter which one is used? The J hook seems harder to find, but Brillman does carry it.   Also, if replacing my spark plug wires, do people prefer the cotton weave style that just clicks on, or do they prefer the EPDM style wires with the boot that covers the connection?   Just slowly working through my parts needed for restoring and updating my WDs and stuck on which path to choose for these parts.
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Replies:
Posted By: ac45dave
Date Posted: 08 Mar 2021 at 4:06pm
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I personally stay a way from the kits,as they are mostly china junk.Echlin from napa is still good quality. The rr 301 rotor is the hook style like what was in them originally.Echlin #s cap rr145 , rotor rr301, points cs763, condensor rr174 ------------- 54 wd-45gas ; 56 wd-45d N/F w/fact p/s ; 63 d-17 sIII N/F gas ; 60 D14 N/F ; 67 d-17 sIV N/F gas ; 63D15 sII W/F; 39rc#667 ; 2021 massey 4710 fwa ; gravely 2 wheel tractors |
Posted By: HD6GTOM
Date Posted: 08 Mar 2021 at 5:55pm
| R&R equipment, former Allis Dealers call the J hook rotors "anti kick back rotors". Used when hand cranking your AC. Since I bought my 1st one it is all I have bought after that. I get them from NAPA. Our local store has been here since the 1920's they are farm oriented. |
Posted By: Steve in NJ
Date Posted: 08 Mar 2021 at 6:53pm
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You have to watch what rotor and cap to use together. Some caps use the straight blade type rotor, some caps need to use the hook style. I carry both in stock, but for all the cast iron Delco Distributors I've found the hook rotor splays the spark more evenly to each high tension terminal in the cap. A much better spark is splayed to the cap terminals when I run my rebuilt Distributors on the 504 machine. I noticed a lot less misfires with the hook rotor. If you're looking at tune up parts, check out our website. We've been an SMP Blue Streak dealer since 1970. If you're also looking for spark plug wires, I offer nice spark plug wire sets for our different model AC Tractors. I use either Belden, Taylor, AC Delco or Packard for the wire along with our Hy Heat Orange spark plug boots. Each of my spark plug wire kits are made for each certain application and are numbered for each cylinder. Visit our website and check em' out also... Steve@B&B bb-customcircuits.com ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |
Posted By: garden_guy
Date Posted: 09 Mar 2021 at 4:48pm
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Thanks you guys for the part numbers and web sites and other component info. I really appreciate it. Have noted all this information down for when I order some parts next month. |