Manual intake valve cleaning

[jad413]

Getting prepped to take the manifold off and scrape some valves for the first time. At 140k miles. Yeah, I know. It's not causing me problems but I want the lost potential back. I did a chemical cleaning the other day. So, what should I have handy as far as tools and supplies? I'm prepared to buy the injector tool since I've heard they tend to pop out with the manifold. Do I need to buy the install kit as well? Not intending to replace the injectors. Thanks for any advice.


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[ViRtUaLheretic]

blue rubber injector seals, some sort of cleaning solvent (BG44k or Mopar Combustion Chamber Cleaner) to soak your valves, dental picks, wire brushes, shop vac.

 

[jad413]

blue rubber injector seals, some sort of cleaning solvent (BG44k or Mopar Combustion Chamber Cleaner) to soak your valves, dental picks, wire brushes, shop vac.

Will I (actually my mechanic buddy and I) really need the puller/installer tool? What exactly does it do? I want to do this right because I don't want to do it again. I've seen a few threads where people claimed not to need it at all.


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[ViRtUaLheretic]

Ive pulled my manifold over a dozen times and never replaced the teflon injector seal (red arrow), only the blue rubber seal (urple arrow).

If you are a perfectionist you could change it, but Ive never had any issues.
YMMV

 

[Zach L]

I've done this a dozen times as well. I don't even replace the blue seals. I only keep them on standby in case I lose one of the blue seals or if I rip/tear one of them. Have never had an issue.

I use B12 Chemtool as a solvent. Available pretty much everywhere. The "official" Audi tool was 35 small zip ties held together with a rubber band. I used this and it worked okay. Also use pipe cleaner type things and a pick set like the one below.

Next time I clean my valves I'd like to try the blasting method with the walnut shells.

 

[gti2slow]

CRC makes a DI specific solvent that looks good.

Also the $8 long reach pick set from craftsman is worth its weight in gold IMHO.