Re[2]: {Chrysler 300} Distributor overview
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Re[2]: {Chrysler 300} Distributor overview



Agree with John.  If working tach not a big deal to you, and original distributor missing or worn out, go non-tach drive electronic.  I have heard the new MP distributors are no longer reliable, also maybe diffferent internal design than original MP (Direct Connection) kits from the 70s/80s, which (in my experience) were bulletproof.  While technically aftermarket, but a direct clone of the ORIGINAL Direct Connection design, I like the Rick Ehrenberg Distributors and conversion kits on ebay, made in USA, uses MP wiring harness, can use MP orange box (or he sells one as well), they are popular with the B/E body Mopar muscle guys.  
for Mopar Electronic Ignition Distributor RB-Engine Plym Dodge 440/413 Blk Cap | eBay

Original distributor long gone missing on my G; I installed one of these Ehrenberg units, very pleased. so far  Mech adavnce curve is fast, seems close enough to stock, F and G like base timing at 5 Degrees BTDC, vac adav diconncted and plugged, will get about additional 20 distributor degrees mech advance by 2000 -2500 rpm, right in line with old Direct Connection distributor adavnce curve which added 18-20 distr. degrees by 2000 rpm (based on original 1981 spec sheet which I have and my own tests I ran some years back).   Remember that F/G have essentially full vacuum advance at idle once connected, timing will jump way up along with idle once the vac can is connected, critical to get timing right with vac can disconnected. 

Lot of guys set for total mech advance at high rpm, I don't think that is a good idea on ram car.  Throtlle linkage settings and correct base timing critical for proper performance on ram car.  On my G, setting base timing higher (like 10 degrees), no detonation but gives worse throttle response and performance, really flat.  Set everything by the book, timing at 5 like Dyke says, car runs like a bat out of hell, no detonation.  Not as fast as J or ram K (headers and short rams make a big difference), but plenty fast by letter car standards and excellent throttle response at all speeds. 

You can mount the ECU orange box on core support or in front of it (on F/G, enough room, on 62 Sport/H mount on core) and hardly even notice it with hood open.   

I installed this kit on my 62 Sport 413 last year as well, better performance than stock single point distributor, even with stock mild single 4 bbl cam. 

Carl B. 


------ Original Message ------
From "Dyke Ridgley" <ridgleyracing65@xxxxxxxxx>
To "Chrysler 300 Club International" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Date 11/2/2024 9:13:35 AM
Subject Re: {Chrysler 300} Distributor overview

A couple of comments:

I am running 30° total advance on my 300F. 5° on the crank and 25° in the distributor. My engine definitely likes that number. 

Be sure to check the TDC mark on the crank pulley with a Piston Stop Tool. I found my pulley mark was 5° retarded ( probably due to rotation of the rubber in the balancer over 60 years).

Dyke Ridgley

On Saturday, November 2, 2024 at 8:57:31 AM UTC-5 jkg wrote:
when looking at non tach drive B block distributors, one really should look at common mopar performance upgrade kits to a stock orange box electronic . or same thing  used , from millions of  440 R B blocks  Way outperforms any point  distributor , no maintenance  and all new parts     .

 service  pieces are in every napa . But generally very reliable . Standard auto parts brand seems good stuff  

Quality of an all new  MP distributor is  not what it was , i got one that ate its bushings — shipped with no lube on them , so —put oil on the  bushings  . looks offshore made , but does the job . All new bushings and you get an  all new shaft with correct fit — that really matters . New vac can . 

By the way , not sure what rebuilding process really is , ( check
out- exactly) as “all that wears” that matters  imho is the shaft bushings and so they often need changing   , very critical   on points ,but  less so on electronic pickup . —- which is resistant to gap changes (inherent in the  way it works )

 sometimes the main shaft gets worn undersized  only in the bushing section  , so new bushings wont fix  that   . been there . Cant use undersize bush as you cant get unworn part of  shaft through it (where not reduced) Longer or slightly relocated  bushes may work ( did that ) but setup then is not at 100%  long term  . Looking back , a lot of work , not worth it . 
Changing points , rotor and capacitor  is not “ rebuilding” if shaft is shot where bushings are .   But cleaning and lubing advance helps . vacuum diaphragm fails a lot too , check with mity vac   

= why on this , non tach RB app , a new MP one and electronic makes sense  
Keeps it mopar . Good for 100 k no touch or worry    Once you to go aftermarket, lots of hype , thin wallet , lots of unique parts and problems 
 . 
forget it   , 

Related , converting to modern electronic tach lets you use kit on FGH , stock tach is  a dancing inaccurate joke ( there - I said  it!) 

wrong  advance curve likely too with aftermarket . 

Don't touch advance without accurate  light , unless you want hole in piston .Cant “ tweak”  “by ear   “     without data where you are . ? 32 degrees max mechanical all in ? 
hope this helps , 
jg

On Nov 2, 2024, at 8:32 AM, RICK AND DEBBIE CLAPHAM <rix...@xxxxxxx> wrote:


I will look in my Sun machine, maybe have a spare IBS 4011, I did recently find a Rebuilt K distributor.

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From: chrysler-300-cl...@xxxxxxxxxxxxxxxx <chrysler-300-cl...@xxxxxxxxxxxxxxxx> on behalf of Jarrod Hermann <jarrod...@xxxxxxxxx>
Sent: Friday, November 1, 2024 9:14:07 AM
To: John Nowosacki <jsnow...@xxxxxxxxx>
Cc: Club <chrysler-300-cl...@xxxxxxxxxxxxxxxx>
Subject: Re: {Chrysler 300} Distributor update
 
Not sure you got my other email. 

I had great luck with joes distributor in Ohio. Specialized in mopar stuff. He’s done a F one, and a 58 golden commando one for me. 

<image0.png>

Jarrod Hermann

On Nov 1, 2024, at 11:03 AM, John Nowosacki <jsnow...@xxxxxxxxx> wrote:


So, I went to Rock Auto just for kicks, and they had a single point "standard performance" distributor (out of stock on D14 dual point "performance" unit recommended for 'U' code 440 engine from 1970), which came with points, condenser, cap and rotor installed and ready to drop into the engine, all for $100.  I ordered it and it came yesterday.  I installed it in my G, and the car started right up, so I adjusted the timing a bit and took it for a test drive.  There was no noise coming from inside the cap like there is on my original that has the rotor slicing its way through 3 of the plug wire studs.  There was no 'skipping' in the 55-65 mph range like there was with the original, either.  There was also no pinging at all, so I dialed in a bit more advance, since I bet the advance curve is less aggressive on the single point unit than on the IBS-4011 normally used with the camshaft of a G.  I can totally live with this level of performance (and lack of tachometer functionality) until I can find a place that can rebuild/repair my original unit.  With that being said, does anyone know someone who rebuilds/restores distributors?  
I found a listing in Hemmings for a guy named Jim from Special-Interest-Autos.com who advertises all kinds of tuneup parts available for sale, and the ad also states that he does 'restorations' of distributors.  His listing is under Chrysler/Mopar parts for sale, as well as under Dodge parts for sale.  Apparently he is from Rockwall, TX, which is a bit over 2 hours away from my location.  I've traded voice mails with Jim, but have not spoken with him 'live' yet to discuss in detail my particular distributor and his ability to find parts to refurbish it (or what the cost would be).
Any other advice/recommendations of repair folk for Autolite distributors would be appreciated.
Thanks,

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