RE: {Chrysler 300} Putting a square peg in a round hole

["Rich Barber" <c300@xxxxxxx>]

I humbly refer those interested to: http://www.jholst.net/lamps/lampindex.php  The 90 bulb is also confirmed in the FSM as a G-6 round-head Double Contact Bayonet bulb rated by NAPA at 8.9W.  Warning light needs to be bright--and should probably be higher up on the panel.   Gotta admit I've missed this light in my pre-flight several times over the years.  Cars seemed to really bog down and something was steenking.

Rich Barber in Brentwood. 

-----Original Message-----
From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx> On Behalf Of John Grady
Sent: Wednesday, February 8, 2023 5:18 PM
To: Ron Waters <ronbo97@xxxxxxxxxxx>
Cc: Rob Kern <robkern@xxxxxxxxxxxxx>; chrysler-300-club-international@xxxxxxxxxxxxxxxx
Subject: Re: {Chrysler 300} Putting a square peg in a round hole

actually Rob all this true , —and very valuable —-especially your comment about look at bottom of bulb . Never ever put a one pin bulb in two pin socket . Dead short . One pin on that two pin design is always live the other one is then  grounded to turn it on . Dome lights are this way too , pink wire is live . And not turned off by ignition switch !!!! leads to the ultimate OH NO above the headliner . 
but more in a second .
The number 90 bulb is usually used as a dome light , very bright bulb . Therefore very hot . I think the correct  bulb for that warning light is one with a round globe , less watts and less heat . And of  course double pins . ——look up in FSM — there is a list of bulbs . 90 may be right , but mine had a round globe . Fewer watts . Not a 90 . 
Too much heat can overheat the socket , the bakelite can cook loosen the pins , and shortsville again . I add shrink tube ion the two wires where they enter that socket . 
The 90 is sort of avocado shaped , i believe the correct bulb has a round globe. Same metal base size . 

So about humility , —being   the EE guy , —-and why I know about that dxxx light , I logically ( to me )assumed the screw on looking top with red jewel got you to the bulb . it does but it is down on a deep hole , no way to grab bulb . How the H do you get the bulb out ? put it in looks easy , push down and turn on top with finger . So after much time vile words  and extreme frustration, pushing down trying to turn it , the glass breaks !! Arrgh arrgh . Now really upset , sliced finger , trying to grab bulb socket shell metal with long nose . no go . 
all of a sudden , the socket (and bulb remains ) both fall off the back , 2 hours in . Sheepish is way too mild . It comes out the BACK !!!!! I thought an all one piece thing . I thought very wrong . 

So none of us escape this stuff . 

In my case i put a 1 watt red LED in there along with current limiting resistor in hot blue feed lead ( 20 ohms 2 watts ) .
So now a forever LED , it runs cold . 
Yes humility is a good word . In my case = “ John , think three or four times before attacking “ needs to be tattooed on hand . 
John
Sent from my iPhone

> On Feb 8, 2023, at 12:19 PM, Ron Waters <ronbo97@xxxxxxxxxxx> wrote:
> 
> Hey Rob -
> 
> I just read thru your missive. As soon as you said that you pulled out 
> a bulb from your drawer, my first thought was, 'did he verify that 
> it's the correct bulb ?'. Bulbs are helpful in that they have their 
> number printed on the side. So if the old bulb said #90, the new one 
> should as well. I guess the double pin bulb didn't. Now to make it 
> interesting, in some cases there could be multiple single-pin bulbs 
> that would work. The difference being the candlepower rating. If you 
> put too bright a bulb in the socket, it may burn the plastic lens. This is a common problem with the roof rail lenses.
> Another reason to check the number on the old bulb. Or consult the 
> owner's manual or shop manual.
> 
> Electricals are fun. I'm about to install the power window harness 
> into my
> 59 Dodge convertible. Always learning something. It's the journey, not 
> the destination, that makes it interesting.
> 
> Ron
> 
> -----Original Message-----
> From: chrysler-300-club-international@xxxxxxxxxxxxxxxx
> [mailto:chrysler-300-club-international@xxxxxxxxxxxxxxxx] On Behalf Of 
> Rob Kern
> Sent: Wednesday, February 08, 2023 11:38 AM
> To: 300 Club
> Cc: RJ Kern; Sean Kern
> Subject: {Chrysler 300} Putting a square peg in a round hole
> 
> Hello 300'ly to all!
>    Wayne Graefen told me when I became the C Model Year Consultant 
> that I would learn all that is needed to know about the C in 5 years 
> of filling the role! Well that was 14 years ago and a little over 2 
> weeks ago I gained another pearl of wisdom.  Trying to exude humility 
> and knowing that self deprecation is the best way of being humorous 
> and being humble (or is it
> humbled) is a great way to share wisdom to pass on.  So I was out 
> driving Mopsy (Marnie was with Grand kids in Reston, VA) and drove out 
> to Lake Lawtonka to check on the boat in its garage cocoon to pump up 
> the fuel bowl and after that 30 second iteration jumped back in the 
> car and voila (or lack
> thereof) my emergency brake warning light was not lighted!  OK simple 
> fix, change the bulb and my next destiny was instead of Starbucks to 
> go straight home and change the bulb.  Being OC I knew I just could 
> NOT enjoy my Mocha Latte with a dead bulb in my precious Christine 
> like 300C! So I crawl under the dash and manage to not cut my hand to 
> shreds with jagged metal.  I managed to dislodge the socket from the 
> ferrule (for lack of a better
> description) and sure enough the bulb was as black as the ebonite that 
> my clarinet was made of when I played it back in the day!  Now here is 
> where it gets interesting, scary and educational (also becomes a day 
> without Starbucks!). I scrounge through my little plastic drawer 
> dedicated to lightt bulbs and find one that looks just like the old 
> bulb and surprise is inscribed with Made In China on the side!  So I 
> with a grin go and attempt to put this bulb in the socket.  Going like 
> trying to put a square peg in a round hole BUT I finally get it in!  
> About this time my neighbor across the street shows up to watch what I 
> am doing.  (Great guy, has helped me through many Mopsy projects so of 
> course he wants to see what degree of difficulty this one is). Oh, 
> just changing a light bulb Steve! (Not like the 14 hours we spent 
> hanging newly chromed front and rear bumpers in 2008). So I turn the 
> ignition to ON and no light and then smoke!!  This  proved that 
> Mopsy's sinuses were clear in that it came out from the cowl vent!  
> Immediately I turned off the ignition switch.  The light blue wires 
> going from the socket to the pin switch to the wiring harness were 
> scrambled. WHAT!!!!  First thing I remembered was Brother-In-Law and 
> best friend (also new Club member) GEORGE HAGERTY saying that 80% of 
> the time that things that go wrong with old cars are electrical!  
> Steve then says well it is not just a light bulb fix now, and says he 
> has to scram to pick stuff up for his mother who lives down the 
> street! He did say that he was ready to get the fire extinguisher if I 
> needed it (we both know where they are in both our homes as well as 
> the hidden key so that he can get into our storm shelter if we are 
> away). So I tracked the wire and found that the only part scrambled 
> was what was involved with the emergency break light . Upon taking out 
> the socket the bulb was clear!  HMMMM!  Not good!  Then when trying to 
> remove the square peg from the round hole found that the contacts from 
> the socket were welded to the bottom of the bulb!!!  Moral of story:  
> If the bulb doesn't fit easily SOMETHING IS WRONG!!  (Forget your 
> gynecological surgery background numb skull!) So a little voice said 
> to call Jeff Carter (save face by confiding in him, he has not been in 
> business in this hobby this long if not for being discreet, imagine 
> how many reputations of MoPAR owners he has preserved by charging what 
> ever to fix the problem created by numbskulls like me!). Jeff was 
> surprisingly present at the shop on a Saturday afternoon and answered 
> the phone.  Of course just hearing him say that I used a single 
> contact bulb and not a dual contact #90 bulb and shorted the 2 
> contacts relaxed me.  " Rest assured, I can make you up a NOS socket 
> and pin switch with the correct length wire and connectors, just send 
> me the old fried stuff with the ferrule and I will do a one day turn 
> around! " exclaimed Jeff. THREE hours later I manage to get the wires 
> and pin switch and socket out!  The emergency brake handle Allen screw 
> would not budge in order for me to remove the under dash housing that 
> contained the light and wiper switches also. I managed to unscrew the 
> housing from the underside edge of the dash (getting cut this time) and moving the bezel out toward the brake handle so that I could wedge my head (definitely not swollen with pride but shrunk with humility) and with the assistance of my cell phone light get a small Phillips head screw driver in to remove the 2 screws holding the pin switch!
> Must have good eyelid reflexes to prevent screws from falling back 
> into your eye when removing and replacing the screws however.  Yes, I 
> did have  chocks behind the rear wheels should I knock the emergency 
> brake handle and it release!  Not enough room for eyeglasses or safety 
> goggles to be worn!  IS THERE EVER ANYTHING EASILY DONE WHEN WORKING 
> ON A '57 CHRYSLER?? Anyway I got it all out and shipped the fried part 
> of the wiring harness with socket, etc. to Jeff. Good to his word Jeff 
> had it arrive to my home the day I dropped Marnie at the airport to take care of the Minneapolis grand kids!
> Jeff included the correct bulb with the #90 type on the invoice and 
> the correct connector for the power to come off an auxiliary terminal 
> in the back of the fuel gauge. HMMM!  My wire was connected to the 
> wire coming directly off the ignition switch done by the guy who 
> rewired the car back in
> 2003 when it underwent major renovation.  Ok, so I was lucky on this 
> deal that the wire was not connected to the gauge cluster because if 
> it was I may have fried the fuel gauge and perhaps the electrical 
> conductivity to the fuel sending unit in guess where?  THE FUEL TANK!  
> Anyway I reconnected the wiring with new connectors as it was done in 
> 2003 with all four wires with good insulation removal for the shrink 
> wrapped connector and installed the new socket, etc. back in place in 
> 1.5 hours with no cuts to the hands! I turned the ignition to ON and 
> the emergency brake light was bright and then engaged the starter 
> button and IT STARTED!!!  Thank you 300 Angels Jeff and Lisa Carter!  
> All electrical stuff checked out fine in the car and I drove her 40 
> miles this weekend, and YES to Starbucks!  So remember if you have a C 
> (and probably the same for the D) if you need to replace an emergency 
> brake warning light bulb use a #90 double contact bulb.  I found two 
> more at O'Reilly's to keep in stock in my little plastic bulb drawer!  
> Rob Kern
> 
> -
> 
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