Hey all just wanted to inroduce my self didn't know if there was a thread to do this already sorry if there is.. Just got my first vw yesterday and love it so far its an 89 cabrio with 150000 miles 5spd in great condition short of the top witch I have a question about and can't seem to find the answer HOW DO YOU REPLACE THE OUTTER LAYER OF THE TOP I have a huge tare and have a new top but don't no how to put it on any adivice? Thanks in advance and I look forward to meeting everyone!
New to the Forum!
8NCcabGuy9
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Here ya go. Took pic just for you to show where the brass screw is.
![Image]()
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ok bad news that screw isnt even there it looks as if someone put a black rubber glue over the hole where the screw should go thats why i couldnt find it in the first place...can i get it from a parts store or can i use any screw that will fit in it
welcome to the world of being screwed over by a previous owner and get used to it.ok bad news that screw isnt even there it looks as if someone put a black rubber glue over the hole where the screw should go thats why i couldnt find it in the first place...can i get it from a parts store or can i use any screw that will fit in it
You can get the screw with the o-ring on it from a VW Dealer (I seem to remember it as about $6). But before you do that you need to figure out how much RTV ("black rubber glue") the PO put in the hole.
Did he just seal it off or did he squirt enough in to seal off the air flow path as well. If the air flow path is sealed off then putting a new screw in isn't going to do anything for you.
I afraid the best thing to do now is to pull the throttle body off so that you can inspect the hole and remove all traces of RTV. It's not that hard to do. you need a new throttlebody gasket for when you put it back on. To remove it there should be one or two electrical connections for the limit switches, you'll have to disconnect the throttle cable, and then there are just 4 bolts that hold the TB to the intake manifold. Make sure that you use some PB Blaster on those first to help loosen any rust. The last thing that you want to do is to snap off a throttle body bolt in the intake manifold.
Steve
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ok well good news i found out the screwis called an idle air bypass screw, and for the RVT i thought that sht was red but guess not but i will go out in the morning and see how far in they put that stuff in PRAYIN TO THE CAB GODS THAT ITS JUST THE TOP AND NOT THE INSIDE. but can i not get that screw from autozone or advance auto?? cause i dont no of a VW dealers here in NC:facepalm:
edit: could i possibly (if its in there a little but not alot) just make a small hole so that it semi works like make a small whole check the idle if not raised make it bigger etc???
edit: could i possibly (if its in there a little but not alot) just make a small hole so that it semi works like make a small whole check the idle if not raised make it bigger etc???
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Ok good looking on that ill run by the parts stores tomorrow just to see if they would have it I no a vw mechanic around here so ill check with him too if not ill be buying it from VW hanks for the info it really helps and that's for the picst
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LMAO jus checked that site and theres a dealer not even 4 miles from my house HAPPY DAYS!!eace:
eace:
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i see what and were its pose to b but its not there
ill get one tomorrow and clean all that RVT off
ill keep everyone posted thanks guys and gals:beer::beer::beer::beer:
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thanks for that pic btw a monkey with no fingers could point that out to a blind man lolHere ya go. Took pic just for you to show where the brass screw is.
![Image]()
just to make sure you understand what the screw does, here is a really simplified drawing I made up to show the screw adjusted for a low, medium and high idle. The air does not come in the screw hole where the RTV is. It comes through the bypass channel that I show and the Screw pinches off the channel to control the air flow. That is why it has to be the correct screw to seal the channel correctly and you have to get all of the RTV out, not just what is plugging the screw hole but also anything that is in the channel. If the PO just sealed off the screw hole then you idle should be way to high.
Steve
![Image]()
![Image]()
Steve
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If the dealer doesn't have the screw, maybe check the junkyards in your area as well.
Here is what it looks like
![Image]()
been doing some seaching on the net and I haven't found it for less than about $30
If the dealer is that bad as well, I'd hit up the local junk yards or go to the Cabby classifieds here and look for anyone parting out a car. you would want to verify that the o-ring was in good condition before you bought it.
Steve
been doing some seaching on the net and I haven't found it for less than about $30
If the dealer is that bad as well, I'd hit up the local junk yards or go to the Cabby classifieds here and look for anyone parting out a car. you would want to verify that the o-ring was in good condition before you bought it.
Steve
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THNAKS FOR THAT DIAGRAM that helped alot:beer::beer::beer:
as for the screw yeah here at the dealer is 40$ ti the junk yeard i go!
as for the screw yeah here at the dealer is 40$
ti the junk yeard i go!
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so i wake up pissed as hell after reading the other posts thinking im screwed and need to take apart the TB so i go out to the car pop the hood and as soon as i pull some RVT off BOOOOM i see the screw!! i keep getting lucky somehow lol but why would some one just cover it with rvt?? maybe bad o-ring and didnt wanna replace it?? ill back the screw out and see
so i wake up pissed as hell after reading the other posts thinking im screwed and need to take apart the TB so i go out to the car pop the hood and as soon as i pull some RVT off BOOOOM i see the screw!! i keep getting lucky somehow lol but why would some one just cover it with rvt?? maybe bad o-ring and didnt wanna replace it?? ill back the screw out and see
Bad O-ring and it was either sucking air in or the idle screw was vibrating in and out causing the idle to change with it.
I believe others here had gotten generic O-rings to replace old dried out ones.
Steve
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ok so i took the screw out wasnt much RVT though and if im correct the o-ring is fine (if im looking at the right thing)
is this the o-ring
is this the o-ring
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UPDATE: i put the screw in and the car crancked right up now sense i didnt fix the first scfew it was idleing at 2000 on a cold start so i loosend it all the way and tightend the bypass screw down to 1000-1100 and its running smooth only problem is that this screw is really loose in the holw im afraid it might fall out if it does that car is gonna die cause i tried starting it with out it in and it said F.U
Replace the o-ring that is why it is loose. Then use a wrap of Teflon tape on the screw head.
Count the turns out, and the turns back in.
Count the turns out, and the turns back in.
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just for safety i wraped gorilla tape over it so it wont budge now can i get a o-ring that size anywere is that an ordered part are there universal ones
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