Need blue ringy-dingy (Page 3/3)
Vintage-Nut OCT 19, 11:58 AM

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Originally posted by edfiero
14062570 for sale on flea bay and all have 7 connectors rather than 8. Was 14062570 really used in the Fiero?




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Vintage-Nut: I think it is the same part without the parking brake warning, but I may be wrong on this......


And I don't know if 14062570 was used in the Fiero.....?

Fiero Chimes Are:
Seat Belt, Key in Ignition Switch when the door is open, Head-Parking Lights when the ignition is 'off' and the Parking Brake.

Obviously, 14062570 was replaced with 10037040 so both are fully compatible with each other with one less electrical connector or 'chime' on the 14062570.

On eBay; GM 14062570 is offered for Corvette which has the same parking brake location as the Fiero.

But again, I believe the difference is the missing input for the parking brake chime/warning, and I may be wrong on this.....
Mickey_Moose OCT 19, 03:06 PM

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Originally posted by theogre:

Erasers & related may clean but leave nothing to protect the joint. Can remove thin coat of "tin" "gold" etc too making more issues...



Completely disagree with this. ^^^

The whole process of plugging and unplugging the board from it's mating pins will do far more damage to the edge connector than an erase will. These types of connectors are self cleaning and will cut through the surface far faster than an eraser will. There is nothing protecting the contact surface in the first place, hence the reason the surface oxidizes (turns color). However, if it is gold, there is no need to "clean" it since gold does not oxidize.

There is no way that you can remove enough material to cause an issue with an eraser unless you are doing this nonstop for a few years (maybe easier using one of those "ink" erasers). The coating is at least 100 microns thick (or more) on the edge connector and I doubt the eraser removes more than a 100 nanometers of film thickness. That being said, when I have some free time at work, I will test this since I work in a research nanofab and we have equipment that can easily measure a change in thickness on the order of a few Angstroms (which is a 1/10 of a nanometer). I will measure the thickness before and after the eraser treatment.

Generally if you are having a connection problem with something that uses an edge connector (like this does), it is:

1) the mating pin has lost it's ability to grab the edge connector tightly.

OR

2) the board has been removed and plugging in so many time that the connector wore through the material on the edge connector.

Both can be fixed - replace the pins in the connector or repair the edge board using a solder and wipe while hot method.

[This message has been edited by Mickey_Moose (edited 10-19-2023).]

John W. Tilford OCT 19, 08:31 PM
Mickey_Moose,

Some moisture problems I and friends of mine have had in the past responded well to Water Displacement - 40. From my current truck's radio to a carpool member's Nissan ignition wiring.

Also, it's absolutely great for killing wood bees (carpenter beetles). Use the red extension to squirt down their holes, dry off the excess, caulk.

Happy face!

John T

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John W. Tilford

Mickey_Moose OCT 22, 10:37 AM

quote
Originally posted by John W. Tilford:

Mickey_Moose,

Some moisture problems I and friends of mine have had in the past responded well to Water Displacement - 40. From my current truck's radio to a carpool member's Nissan ignition wiring.

Also, it's absolutely great for killing wood bees (carpenter beetles). Use the red extension to squirt down their holes, dry off the excess, caulk.

Happy face!

John T




WD-40 leaves a film on the surface and can cause arcing/etc (never mind are a magnet for more dirt and dust). The only cleaner you should use is a contact cleaner - and - I personally don't even use those. There is no need to use anything other than a pencil eraser on edge board connectors. If water is an issue, IPA to clean/remove water and then apply a dielectric grease as Ogre said.

If the circuit board is filthy, which would not be the case here, dish soap (preferably Dawn - but I mainly used Simply Green) and water can clean those up (providing no power is present on the boards). I have worked on some circuit boards where they were so caked of crap you could not even see the individual components and you had to wash them so you could work on them - don't miss those days.

In my 40 years in the industry I have seen so many problems caused by WD40 and other such solutions that leave behind an oily film on electronics (your average consumer is bad for this). But hey, each to their own...