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Causes of water bridge seal failure?

 
Old 01-14-2019, 12:01 PM
  #16  
928S MN
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Scott,

If that water bridge is coming off, good time to install GB's oil separator. Only way it will fit under the oil filler neck is with the water bridge removed.
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Old 01-14-2019, 01:47 PM
  #17  
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Upper right hand corner of this page....for the 928 Pentosin NF: http://www.pentosin.net/f_antifreeze.asp

Found it cheapest here:
https://www.fcpeuro.com/products/nf-...SABEgL2sPD_BwE

Ordered 5 bottles = 7.5liters X 2 (water) gives you what you need 14 liters....yes keep a little Pentosin back on the last bottle to keep it3 50/50.
I was also going to add Water Wetter...I have last time...any opinions?
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Old 01-14-2019, 02:46 PM
  #18  
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A well maintained 928 cooling system shouldn't need any water wetter.
Plus some water wetter formulations contain borates, which over time cause increased corrosion of aluminum. If you do add some, just do a little home work and make sure "no borate!"
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Old 01-14-2019, 03:06 PM
  #19  
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Eh...I'll just leave it out..no sense causing the risk....appreciate the feedback 928S MN.
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Old 01-14-2019, 10:29 PM
  #20  
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Originally Posted by 928S MN View Post
Scott,

If that water bridge is coming off, good time to install GB's oil separator. Only way it will fit under the oil filler neck is with the water bridge removed.
Well, to be perfectly honest, the best time would probably have been the first one, back about 3 years ago when I bought it, along with a whole bunch of other parts, then managed to forget I had it until about a year after I'd finished the intake refresh and found it under a pile of empty shipping boxes on the far side of my bench...

Rest assured, I will not make that mistake twice

PS: It does make a person wonder how much of Greg's revenue is based on idiots like myself who order fancy custom parts then forget they ever bought them?
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Old 01-19-2019, 08:06 PM
  #21  
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I had the idea I might get the water bridge out without taking the entire intake off and thought I could maybe just remove the front intake runner without taking the fuel rails off again, but it seems like no such luck?

I've read several accounts of folks removing the water bridge on S4s without removing the intake, nothing about the S3s though. Anyone have experience? Can it be done with less effort than needed to take out the whole intake? Any pointers to procedures?

Thanks,
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Old 01-24-2019, 12:22 AM
  #22  
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Well, I have the intake runners exposed and the fuel rails off again. Luckily, since I've just finished replacing all the flexible fuel lines I only had to deal with one corroded fitting on the back of the driver's side rail that's connected to a hard line I didn't mess with. It succumbed to ATF+Acetone after a few minutes. Since the rails have been out recently they were no trouble at all. Bagged and ready to be re-installed.

Tomorrow the intake comes out then the water bridge and this all gets fixed up again.

I can't remember the secret handshake needed to get those Bosch fuel injector connections off. Anyone want to rent me a clue?
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Old 01-24-2019, 12:25 AM
  #23  
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Question: Is there a good anti-seize type of paste that works on these fuel lines when I re-assemble them?
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