plug in rubber door gaskets? - Alfa Romeo Bulletin Board & Forums
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post #1 of 13 (permalink) Old 02-19-2017, 02:28 PM Thread Starter
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plug in rubber door gaskets?

these rubber door gaskets, are they suppose to have a plug?

i had them installed two summers and just noticed that mine do not have them.

thanks
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post #2 of 13 (permalink) Old 02-19-2017, 03:41 PM
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A little dab of black RTV would be discrete and keep rain out.

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post #3 of 13 (permalink) Old 02-19-2017, 03:53 PM
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How about a pair of these? See: RB023 SPIDER DOOR SEAL END PLUG - Classic Alfa


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post #4 of 13 (permalink) Old 02-19-2017, 06:03 PM
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Quote:
Originally Posted by Alfajay View Post
How about a pair of these? See: RB023 SPIDER DOOR SEAL END PLUG - Classic Alfa

Those are the plugs that I have. I put a bit of RTV around them and then insert as they tend to get squeezed out with the door closing on them.

Those plugs are also at the other end of the door seal at the top of the windshield. Do you have them there?

Good luck,

Vin
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post #5 of 13 (permalink) Old 02-19-2017, 07:57 PM Thread Starter
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Quote:
Originally Posted by Vintre View Post
Those are the plugs that I have. I put a bit of RTV around them and then insert as they tend to get squeezed out with the door closing on them.

Those plugs are also at the other end of the door seal at the top of the windshield. Do you have them there?

Good luck,

Vin
yes i have them up top of the windshield.

i will order 2 more from centerline.

https://www.centerlinealfa.com/catal...ider-door-seal

you recommend i use RTV though?

thanks

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post #6 of 13 (permalink) Old 02-19-2017, 11:55 PM
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when you close the door the air inside the seal tries to pop those stoppers out (and you lose them), so a dab of sealant helps (or spot of superglue).
door seals should have air holes, some aftermarket don't.

on the other end (windshield) there is a rubber plug that first goes inside the seal then the stopper.....probably helps stop leaks in that corner!
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post #7 of 13 (permalink) Old 02-20-2017, 04:50 PM Thread Starter
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Quote:
Originally Posted by spiderserie4 View Post
when you close the door the air inside the seal tries to pop those stoppers out (and you lose them), so a dab of sealant helps (or spot of superglue).
door seals should have air holes, some aftermarket don't.

on the other end (windshield) there is a rubber plug that first goes inside the seal then the stopper.....probably helps stop leaks in that corner!
thanks for the reply back and the diagram.

i'll try RTV or superglue.

i'll see what i have im the house.

thank you.

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post #8 of 13 (permalink) Old 09-01-2017, 11:29 AM
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never lose another door seal plug!

just updating this:

I have lost so many seals that popped out without me noticing, and at 5 bucks each it was getting on my nerves! Especially the ones at the door shut. The ones at the windscreen kind of slip a little under that plastic end cap.

Once I glued them (the door ones) in with a real strong contact glue....you guessed it...they still popped out, but this time tore a freakin bit of the door seal with them

As I recently replaced my door seals, I bought a length of 9mm closed cell neoprene sponge cord....like this:
Closed Cell NEOPRENE SPONGE CORD Foam Rubber 3mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm | eBay

This fits exactly into the plug. You glue the plug onto this (contact glue), Then insert say 6 inches or whatever length you want of the neoprene cord, with the plug glued onto the end, into the door seal (both at windscreen and at door end, spray talc helps if you choose a long length to perhaps fill out the seal)....now they sit just where they ought to......and if they ever tried to pop out, I'd notice them dangling on the end of a length closed cell cord

So, yes, basically following the little diagram I posted above from the alfa book (They were paid for a reason, the alfa designers!)

Edit: oh, and an added bonus... it prevents them from deforming too, as the closed cell cord keeps the shape a lot better than a hollow bit of rubber!

(sorry, only poor phone photos)
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Last edited by spiderserie4; 09-01-2017 at 11:38 AM.
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post #9 of 13 (permalink) Old 09-02-2017, 03:01 PM
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Gee, I've only had this problem for 50 years ('67 Duetto). With a sharp x-acto knife, put a slit in the plug. The air pressure will blow thru this and keep the plug in place.

Robert
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post #10 of 13 (permalink) Old 09-03-2017, 12:56 AM
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My door wouldn't even close with the plug in place, so I leave them out. It just banged on the hard plastic plug.

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post #11 of 13 (permalink) Old 09-03-2017, 02:20 AM
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yes a slit would work I suppose

there is on the other hand an added use for the foam insert coil, at least at the windscreen end.....it helps seal the top part, which according to the soft top manual is sometimes a source of leaks. The manual recommends a 5" length.

If the door will not close with just the hollow rubber plug, there is something not right and my guess would be the window tracks are raked too far inwards....(rake can be adjusted with the two 10mm bolts at the bottom)
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post #12 of 13 (permalink) Old 09-03-2017, 07:10 PM
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I got my plugs from Mr. Fiat two years ago, along with a door seal. The plug prevents the door from latching. The seal was s h i t and has worn worse than the original passenger side, where it curves around to the floorboard from the b post. The foam just tore away. Price you pay for 'in the ballpark' parts, I guess.

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post #13 of 13 (permalink) Old 09-04-2017, 04:27 PM
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Quote:
Originally Posted by John533i View Post
My door wouldn't even close with the plug in place, so I leave them out. It just banged on the hard plastic plug.
Thanks to this thread I discovered I was supposed to have a plug. I don't. I never will. Not sure I see the need.

The top of my door gasket is folded under the trim at the top of my windshield. Not sure if that's OEM, but it works.

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Last edited by WithanF; 09-04-2017 at 04:32 PM.
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