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Re: The sad, sad state of classic car tuneup parts [Re: RWG75] #2668609
06/22/19 08:36 AM
06/22/19 08:36 AM
Joined: Jan 2005
Posts: 4,818
the frozen wastes...
Pale_Roader Offline
Swears too much
Pale_Roader  Offline
Swears too much

Joined: Jan 2005
Posts: 4,818
the frozen wastes...
Originally Posted by RWG75
Originally Posted by Pale_Roader

Its pretty bad when your box ov emergency electrical parts you keep in the trunk is full ov 40 year old pull-off parts from running cars because you dont trust parts counter parts anymore...


I thought I was the only one that did that!

A couple ECUs, a couple ballast resistors, a couple regulators, a rotor, a coil, some scotch brite and enough tools to swap all of it in a small little box tucked inside the spare tire.


I called it my Roadside Mopar kit. ECU, ballast, regulator, dimmer switch, coil, couple new plugs (my car used to inhale spark plugs), alligator clip (to run the lights if need be), thermostat, hoses, couple other assorted little things. Had it all in a little box about 1/2 the size ov a battery. Ov course... the second i put that together (based on anything i'd ever needed when i was stranded), i never needed to use any ov it. Well... except the plugs. Stupid crop-duster 440...

[censored] Mopars. I've driven many GM cars ov the same era, and while i ran the hell away from GM for other reasons, i never once had one die on me, or not start due to electrical problems. My 68 Cadillac was bought for $600 in the very early 90's, and it was a complete and total roach then. 25 sitting and neglected years later i've not done ANY work under the hood, nor replaced a single electrical component (aside from lights and battery), and i can go outside and start it up right now. I'd take it on a 1000 mile road trip.

I love Mopar... but what wigged-out acid-junkie designed their electrical system...???

Re: The sad, sad state of classic car tuneup parts [Re: RWG75] #2668652
06/22/19 10:28 AM
06/22/19 10:28 AM
Joined: May 2019
Posts: 618
nowhere
S
Sniper Offline
We know who you are
Sniper  Offline
We know who you are
S

Joined: May 2019
Posts: 618
nowhere
Motorola quit making the power transistor years ago and semiconductor design passed by those old school transistors so production of them went to second rate manufacturers, then third rate then to where ever someone can pretend to make it.

It is what it is and it's not Chrysler's fault. They quit putting that kind of system out back well before the last millennia ended.

Kinda like bitching about not being able to get a Model T buzzbox at Autozone.

Here is one clue though, if the transistor has no markings, it's fake.

A thread from long ago about exactly this over on FABO

https://www.forabodiesonly.com/mopar/threads/hei-in-mopar-ecu-casing.252705/

You want good, FBO HRR688. Not a bad clone of the OEM box but a modern update of it's function in your ignition system.

Or points
Or walk


You don't know anything
Re: The sad, sad state of classic car tuneup parts [Re: Sniper] #2668676
06/22/19 11:27 AM
06/22/19 11:27 AM
Joined: Jan 2003
Posts: 11,087
APACHE JUNCTION AZ
J
Joesixpack Offline
I Live Here
Joesixpack  Offline
I Live Here
J

Joined: Jan 2003
Posts: 11,087
APACHE JUNCTION AZ
have been selling usa made nos and nors ignition parts since 2005 for most makes and models, 1920 to 1975 if you are willing to search around you can find the nors/nos parts made in the USA.

Re: The sad, sad state of classic car tuneup parts [Re: Joesixpack] #2668716
06/22/19 01:42 PM
06/22/19 01:42 PM
Joined: Jan 2003
Posts: 25,680
Mardi Gras-Land
340SIX Offline
Too Many Posts
340SIX  Offline
Too Many Posts

Joined: Jan 2003
Posts: 25,680
Mardi Gras-Land
I have never ow a balace resistor. Back when I was really driving these cars I kept one as,a,spare.
I guess I should again. Any thoughts on brand or does it not matter.
I looked and havec1 or 2 extra old ECU Used Orange and Chrome. A new Orange in ,Whole distributed kit from 25 30 or so years ago.
Did find ,new Gold Race Chrome closed to same age.
What happens if ya run the Gold thought sitting burnt them up.
I am not getting younger and may ditch the Gold or a few others on eBay or here. I am starting to wonder what I have all this stuff for. And get that FBO W/ Limiter. And the coil they recommend as a,kit.
Do I have to get rid of the balisit?
I want the stock look where it is no cut wires etc.

Re: The sad, sad state of classic car tuneup parts [Re: CrAlt] #2669107
06/23/19 06:33 PM
06/23/19 06:33 PM
Joined: Jan 2003
Posts: 26,116
Oregon
A
AndyF Offline
Too Many Posts
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A

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Posts: 26,116
Oregon
I'll agree that many, if not most, aftermarket stuff these days is garbage. I'm in the process of building two cars right now and a significant amount of the stuff I buy goes right back or into the recycle bin. I might not build another car after I get these finished since I kind of don't see the point anymore. Why build a car if the parts are all garbage? Some people might consider it a perverse challenge to build a decent car out of garbage but I don't see it that way. To me it is just a waste of my time to have to rebuild or redesign almost every single part I buy.

On the flip side, the parts do not need to be garbage. If someone wanted to build a high quality ignition box then it should be easier now than ever to do that. I would think that with a small investment of time and money a sharp electronics guy could build a Mopar ignition box that worked perfectly for 200K miles. It just shouldn't be that difficult to build. I worked with an electronics tech who was building his own ignition boxes 30 years ago. He had a cool little design that worked great and didn't cost much to build. He would show me on his scope how nice it worked and explain it all to me but most of it went over my head since I'm a mechanical engineer not electrical.

Re: The sad, sad state of classic car tuneup parts [Re: AndyF] #2669153
06/23/19 09:23 PM
06/23/19 09:23 PM
Joined: Jan 2003
Posts: 9,887
Connecticut
CrAlt Offline OP
master
CrAlt  Offline OP
master

Joined: Jan 2003
Posts: 9,887
Connecticut
Originally Posted by AndyF
I worked with an electronics tech who was building his own ignition boxes 30 years ago. He had a cool little design that worked great and didn't cost much to build. He would show me on his scope how nice it worked and explain it all to me but most of it went over my head since I'm a mechanical engineer not electrical.



Are you still in contact with him? Did he ever publish his design?

The Motorola MC3334 IC (used in the gm hei afaik) driving the MJ10012 transistor schematic is easy to find but both chips are out of production.

I wonder if the schematics for the original Mopar ICM is out there? work

MC 3334 Block diagC.jpg

I was asked to contribute money to help solve the civil unrest in Egypt, but I suspect it's some sort of pyramid scheme.

Re: The sad, sad state of classic car tuneup parts [Re: Sniper] #2669165
06/23/19 10:12 PM
06/23/19 10:12 PM
Joined: Jan 2003
Posts: 5,083
So Cal
Sinitro Offline
master
Sinitro  Offline
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Posts: 5,083
So Cal
Originally Posted by Sniper
Motorola quit making the power transistor years ago and semiconductor design passed by those old school transistors so production of them went to second rate manufacturers, then third rate then to where ever someone can pretend to make it.

It is what it is and it's not Chrysler's fault. They quit putting that kind of system out back well before the last millennia ended.

Kinda like bitching about not being able to get a Model T buzzbox at Autozone.

Here is one clue though, if the transistor has no markings, it's fake.

A thread from long ago about exactly this over on FABO

https://www.forabodiesonly.com/mopar/threads/hei-in-mopar-ecu-casing.252705/

You want good, FBO HRR688. Not a bad clone of the OEM box but a modern update of it's function in your ignition system.

Or points
Or walk


The power transistor is a very common TO-3 PNP AF Power Transistor, manufactured by multiple suppliers and its FOB cost ranges from $0.55 to $1.65 depending upon buy quantity and voltage/current rating specs.. The basic power transistor is used in multiple CE products from in-dash DIN CD/DVD players to battery powered components. The problem lies with the purchaser/brand of the ignition box itself, if U continue to push the factory for lower pricing they will source a lower rated power transistor more likely to fail and U will get a POS..

Just my $0.02.... wink

Re: The sad, sad state of classic car tuneup parts [Re: Sinitro] #2669199
06/23/19 11:26 PM
06/23/19 11:26 PM
Joined: Jan 2003
Posts: 9,887
Connecticut
CrAlt Offline OP
master
CrAlt  Offline OP
master

Joined: Jan 2003
Posts: 9,887
Connecticut
Originally Posted by Sinitro


The power transistor is a very common TO-3 PNP AF Power Transistor, manufactured by multiple suppliers and its FOB cost ranges from $0.55 to $1.65 depending upon buy quantity and voltage/current rating specs.. The basic power transistor is used in multiple CE products from in-dash DIN CD/DVD players to battery powered components.


The transistor used in all these boxes i can find photos of are oldschool NPN darlington transistors. Basically all knockoffs of the original Motorola MJ10012 like the STM BU931 and BU941.
What box are you seeing a PNP audio transistor on? confused

FBO used to make a good clone of the Chrome box (FBO PN# A688) but it seems they no longer sell this. I wonder if their supply of darlington's dried up? work


I was asked to contribute money to help solve the civil unrest in Egypt, but I suspect it's some sort of pyramid scheme.

Re: The sad, sad state of classic car tuneup parts [Re: Sinitro] #2669256
06/24/19 08:37 AM
06/24/19 08:37 AM
Joined: May 2019
Posts: 618
nowhere
S
Sniper Offline
We know who you are
Sniper  Offline
We know who you are
S

Joined: May 2019
Posts: 618
nowhere
Originally Posted by Sinitro


The power transistor is a very common TO-3 PNP AF Power Transistor, manufactured by multiple suppliers and its FOB cost ranges from $0.55 to $1.65 depending upon buy quantity and voltage/current rating specs.. The basic power transistor is used in multiple CE products from in-dash DIN CD/DVD players to battery powered components. T

Just my $0.02.... wink


Except none of that is correct.

Last time I looked into it the correct transistor was no longer available and you could find semi adequate substitutes but none of then were what you spec.

Here's the link to the Motorola MJ10012 spec sheet.


You don't know anything
Re: The sad, sad state of classic car tuneup parts [Re: Sniper] #2669315
06/24/19 11:08 AM
06/24/19 11:08 AM
Joined: Oct 2007
Posts: 3,122
State of Jefferson
hooziewhatsit Offline
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Posts: 3,122
State of Jefferson
I found some of those in small quantities, for ~$8+ each eek

https://octopart.com/search?q=MJ10012&oq=MJ10012&start=0&autosugg_idx=0

Whatever happened to the new ignition box from... the RT Garage, I think it was?

I've had a hirev 7500 box in my truck for a few years now with no issues shruggy


If you ever find yourself in a fair fight, your tactics suck.
Re: The sad, sad state of classic car tuneup parts [Re: hooziewhatsit] #2672959
07/02/19 10:49 AM
07/02/19 10:49 AM
Joined: Nov 2005
Posts: 590
New Lenox il.
CARMAN Offline
mopar
CARMAN  Offline
mopar

Joined: Nov 2005
Posts: 590
New Lenox il.
Are these 2 any good.

s-l1600.jpgs-l1602.jpg
Re: The sad, sad state of classic car tuneup parts [Re: CARMAN] #2673767
07/03/19 08:19 PM
07/03/19 08:19 PM
Joined: Jan 2003
Posts: 9,887
Connecticut
CrAlt Offline OP
master
CrAlt  Offline OP
master

Joined: Jan 2003
Posts: 9,887
Connecticut
Prob a safe bet with the Made in USA ones. Ended up finding 2 old aftermarket ones in the wrecking yard that look like that same style. Rusty but they work fine.


I was asked to contribute money to help solve the civil unrest in Egypt, but I suspect it's some sort of pyramid scheme.

Re: The sad, sad state of classic car tuneup parts [Re: CrAlt] #2673784
07/03/19 09:05 PM
07/03/19 09:05 PM
Joined: Jan 2003
Posts: 14,114
Between Houston & Galveston TX
Satilite73 Offline
I Live Here
Satilite73  Offline
I Live Here

Joined: Jan 2003
Posts: 14,114
Between Houston & Galveston TX
Originally Posted by CrAlt
Prob a safe bet with the Made in USA ones. Ended up finding 2 old aftermarket ones in the wrecking yard that look like that same style. Rusty but they work fine.


Between 'made in the USA' and the Motorola symbol on the transistor I agree that you should be good.


John

Imagine a '73 Satellite Wagon picture here. 😁
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