injector cup sealant
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
What ever comes with the new cups. Riffraff sells the cups and sealant. I believe that is what people do to use ELC on the early 99. Its a Loctite just don't remember the number, I think its 620 but someone will chime in soon.
Posting Guru
Joined: Oct 2008
Posts: 1,080
Likes: 10
#620 let it sit for about 30 minutes if you start it without the valve covers on - Take time to clean the surface with some very fine sandpaper. A dremmel with a small wire wheel works great - you don't want to have to go back in..... trust me 
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
I let mine cure overnight (heat lamp on it). After the 24-hour cure time, I shoot some silicone spray into the hole, wetting the edges of the cup. I puff the degas bottle up to 15 PSI and watch for bubbles from the cup.
The pressurized degas bottle is how I found which cup was bad the first time around.
The pressurized degas bottle is how I found which cup was bad the first time around.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
I wasn't looking for foamy-type bubbles, I was looking for tiny burps. Any fluid will supply this, so I went with something harmless. I don't like the idea of putting anything in the hole that I don't want to accidentally get into the fuel rail. Some clean diesel in a spray bottle would do the trick as well.
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