Guest BigKev Posted June 18, 2006 Share Posted June 18, 2006 I was searching for spark plugs for the '54 today at Napa, and the only ones they could cross reference was Champion RJ12C. Obviously this is a resister plug. Any thoughts on this plug? Or is there a better plug I should use?I was able to pick up almost all the new tune-up parts and 12v ignition parts that I needed. But I could not find a cross reference to what would be a good external resistor. Is there a cross reference to the resistor that was used on the 56 Packards with D/R coil?Also a group 34 battery fits perfectly in the battery tray on the '54. Link to comment Share on other sites More sharing options...
tbirdman Posted June 19, 2006 Share Posted June 19, 2006 My 32 Packard had J11Cs in it. It is the same 14mm, 3/8" reach plug as the RJ12C. I replaced them with AC44s IU got off of EBAY. I also have a set of AC45s just in case. There's a lot of them on Ebay for around $20 for a set of 8 for winning bids. I went with AC because Champions were slammed big time in this forum. Link to comment Share on other sites More sharing options...
Guest imported_Speedster Posted June 19, 2006 Share Posted June 19, 2006 I refuse to be Pulled into another Spark-Plug Debate! <img src="http://forums.aaca.org/images/graemlins/crazy.gif" alt="" /> I just can't stand the Pressure! <img src="http://forums.aaca.org/images/graemlins/shocked.gif" alt="" /> <img src="http://forums.aaca.org/images/graemlins/grin.gif" alt="" /> Link to comment Share on other sites More sharing options...
Guest BigKev Posted June 19, 2006 Share Posted June 19, 2006 I located a cache of AC-45 plugs. So I thing I will give them a try. I guess there were also also used in a lot of GM muscle cars. BTW if you are looking for an 8-Pack of these plugs, here is the GM part number 1559493. Link to comment Share on other sites More sharing options...
52deluxe Posted June 19, 2006 Share Posted June 19, 2006 im running lawn mower plugs in my packard, no issues tho it took the parts guy alot of books to find the right heat range etc. when i get a few min ill look which ones and post the numbers. i wanna say ac97's. Link to comment Share on other sites More sharing options...
Guest BigKev Posted June 19, 2006 Share Posted June 19, 2006 That's funny you mention that, bacause the AC-45's are also used in several riding lawn mowers. <img src="http://forums.aaca.org/images/graemlins/grin.gif" alt="" /> Link to comment Share on other sites More sharing options...
52deluxe Posted June 20, 2006 Share Posted June 20, 2006 took a trip downstairs and looked, installed are autolite 295's. think they cost me 99 cents each or something about 10,000 miles ago. no fouling which is why i went to a non-resistor plug which was causing issues. Link to comment Share on other sites More sharing options...
Dr Morbius Posted June 21, 2006 Share Posted June 21, 2006 You have good luck with the autolites ------ most people don't. That's why I only use A C plugs. To each his own. <img src="http://forums.aaca.org/images/graemlins/smile.gif" alt="" /> <img src="http://forums.aaca.org/images/graemlins/smile.gif" alt="" /> <img src="http://forums.aaca.org/images/graemlins/smile.gif" alt="" /> ........................Steve Link to comment Share on other sites More sharing options...
52deluxe Posted June 21, 2006 Share Posted June 21, 2006 i wanted to run splitfires as i used to run them in my motorcycle durring my drag racing days with much success. i cant seem to find one thats the right heat range, non resistor etc. Link to comment Share on other sites More sharing options...
mlander Posted October 6, 2006 Share Posted October 6, 2006 The book I have says the 54 Packard is for a Champion J8 sparkplug =14mm by 3/8 reach by # 8 heat range.http://www.sparkplugs.com/results_cross....nCrossWarning=1The replacement for these plugs was found at the address above.Autolite = # 295Denso = #W14USNGK = B6sChampion = RJ8CAll are $2.24 eachEDIT; The Delco AC at one place states the AC45 is the correct number. M.L. Anderson Link to comment Share on other sites More sharing options...
Guest Posted October 7, 2006 Share Posted October 7, 2006 1951 through 1953 Packard listed three different spark plugs AUTO-LITE A-5, AC 46-5, CHAMPION J8.I can undertand them listing AUTO-LITE and AC, because Packard used Auto-Lite and Delco distributors.From what I remember Brad telling me that the AUTO-Lite ignition system was used on the senior models, and the Delco on the junior models. If this is wrong will someone please correct me. The strange thing is that in 1954 Packard used both ignition systems by only recomended using Champion J8 plugs as mlander noted.I wonder why they only recomended Champion in 1954. The plugs that I would be using depends upon which igintion system that the Packard came equiped with. IE Delco use AC plugs, Auto-Lite use Auto-Lite plugs. The above in the last sentence are my thoughts only, but Brad always seem to lean that way, hard to argue with a person like him, that worked on them for so many years. I personally would only use Champion plugs in my lawn mowers John F. Shireman Link to comment Share on other sites More sharing options...
bernardi Posted October 7, 2006 Share Posted October 7, 2006 John - Link to comment Share on other sites More sharing options...
bernardi Posted October 7, 2006 Share Posted October 7, 2006 John - Believe you have it reversed. The senior cars (my 55 400s) use the Delco distributor. The junior cars used Auto-Lite. The PAC library spec sheet also shows this split for both 55 and 56. One would get the impression that Delco is a superior system if it is used on the more expensive car. Bernardi I should have looked more closely at your post, John. I had 55-56 on my mind, not the straight eight. Link to comment Share on other sites More sharing options...
Guest BigKev Posted October 26, 2006 Share Posted October 26, 2006 My '54 Clipper is all Delco. Starter, Distro, etc. It was always my belief in '54 that the Clippers were all Delco, and the Seniors were all Auto-Lite. This may have changed in 55/56. Link to comment Share on other sites More sharing options...
Clipper47 Posted October 26, 2006 Share Posted October 26, 2006 My 47 Super Clipper is all Autolite but my parts car is a late 47 Custom Super and the dist., gen., starter, volt reg. is Delco. I think that the Senior 22nd cars were Delco also. Link to comment Share on other sites More sharing options...
Guest imported_Speedster Posted October 26, 2006 Share Posted October 26, 2006 Could it have been the Factory location, where they were built, that determined the system used? Or maybe it was just Parts Availability, at the time? Link to comment Share on other sites More sharing options...
Clipper47 Posted October 26, 2006 Share Posted October 26, 2006 Just out of curiousity I checked my shop manual and it states that the 22nd Series Customs (356") used Autolite and the Super Eight (327" )used Autolite or Delco. Maybe the engine in the parts car is a 327" installed as a replacement for perhaps a blown 356 or the parts from a 327 were interchanged? I will have to check the engine number again but I am almost certain that it is a 356". Link to comment Share on other sites More sharing options...
Guest BigKev Posted October 30, 2006 Share Posted October 30, 2006 Correction on the Distro's used in '54:5400 - Autolite5401 - Autolite5411 - Delco5402>5431 - Delco5406>5436 - Delco5413 - Delco5433 - AutoliteThis is from the Specifications page of the Service Manual. Link to comment Share on other sites More sharing options...
Guest Randy Berger Posted November 12, 2006 Share Posted November 12, 2006 I put the 400 into hibernation for the winter, but the NGK plugs ran well for me and eliminated a misfire which occurred at irregular intervals. The fact they are a non-resistor plug is what convinced me to try them. Link to comment Share on other sites More sharing options...
Guest imported_Speedster Posted November 12, 2006 Share Posted November 12, 2006 Yes, It's my understanding that Resistor Plugs are Only needed if the plugs are causing Ignition Noise on the Radio, when using a points type distributor. Is that Correct? More modern transistor type radios have better filtering so there is less need for internal plug resistors. Link to comment Share on other sites More sharing options...
Guest imported_PackardV8 Posted November 13, 2006 Share Posted November 13, 2006 THe plug wires should be of a radio suppression type. Also, there is a condensor on the GENERATOR to eliminate radio static. If it's bad then u can get radio static. Seems to me that there is also another condensor on the coil for radio suppression????. Link to comment Share on other sites More sharing options...
Guest Randy Berger Posted November 13, 2006 Share Posted November 13, 2006 On the 56 the resistor is built into the rotor. On my 52, the resistor was built into the main wire from coil to center of cap. I don't need resistor plugs. My radio sounds fine - always did. Link to comment Share on other sites More sharing options...
Guest imported_PackardV8 Posted November 13, 2006 Share Posted November 13, 2006 Yeah! I keep forgetting about the carbon block in that rotor!! Link to comment Share on other sites More sharing options...
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