Fiat 124 Spider Forum banner

1 - 16 of 16 Posts

·
Registered
Joined
·
82 Posts
Discussion Starter #1
On this forum there are threads referring to dealers often not fitting chassis plugs prior to the owners initial collection. Why are they not fitted in the factory? What's the purpose of these apparent drain holes? Are they anything to do with roof drainage?

Previous experience of the first three generations of the mx 5 has awakened me to problems of the soft roof drainage cavities becoming blocked and the water becoming trapped within the cills.
 

·
Registered
Joined
·
284 Posts
I found the plugs in the "glove box" and popped them in last night. Are these related to the top drains, or just something for shipment of the car to the port? Easy enough to take out if not needed or possibly can cause issues.
 

·
Registered
Joined
·
351 Posts
The story I heard is that they're used for chassis alignment during manufacturing and have no purpose beyond that. The plugs are supposed to be installed by the dealer and most owners would never be aware of them, so I don't think they're part of any drainage system.
 

·
Registered
Joined
·
79 Posts
I havent seen any actual info on what they are, and I'm curious about them myself
 

·
Registered
Joined
·
351 Posts
I tried to find where they're supposed to be fitted, but I can't find it.
They go in the square-section chassis rail that runs down under both sides of the car, near the edge. Start feeling back under the doors and you'll hit the rail. Then feel along the bottom surface of that about 3/4 of the way to the rear wheels. It's an oval-shaped hole, same shape as the rubber plug. There's one on each side of the car, same place.

Jam the plugs in until you feel them seat cleanly, front and rear. Then you're done!

Ameridan posted this picture in another thread:


The red arrows show where the plugs go.
 

·
Registered
Joined
·
79 Posts
Thanks for the pic. I'm still not sure what exactly they plug up, but I'm guessing it's to keep out moisture, corrosion, etc
 

·
Registered
Joined
·
379 Posts
O.k. searched and found this old thread cuz I saw these mentioned in the Pressure Monitor Thread (thanks, cuz I've been baffled)


Now I know what they are and where they go (thanks for the pic!).


BUT has anyone actually figured out what they do?!?!?!?
 

·
Registered
Joined
·
351 Posts
They're probably there to seal the hole and prevent corrosion inside the frame rail. Why the holes themselves exist is uncertain. I've heard that they're tie-down points for shipping, also that they're for aligning the frame during manufacture. It could be both or neither.
 

·
Registered
Joined
·
379 Posts
Now that is interesting.


So if they are in a sealed bag they weren't used for their intended purpose.
Begs the question: Why install them after the fact?
 

·
Registered
Joined
·
958 Posts
  • Like
Reactions: melandat
1 - 16 of 16 Posts
Top