Cleaning the Fuel system before reassembly?

joeycatt · joeycatt's Garage

The engine is built (finally) and I'm ready to turn my attention to the induction system - it's been sitting for about 5 years now - (car is a 78 911SC, 3.0) - any ideas how to clean out the fuel system ??? I'm looking at the injectors and can imagine that they are not at their happiest, having been in a corner for these years...and could there be fuel in the lines? (what would it look like after 5 years....putty? syrup? slime???????)
Any advice on methods or chemicals would be welcomed, here in Ohio!!!

kenikh · 07-01-2006, 10:42 PM

A number of folks here have ultrasonically cleaned engine parts with great luck, especially injectors.

BReyes · BReyes's Garage

As long as everything is pefectly clean right. US is great and nec but bet you could clean/flush it yourself. Get ready to break her in.

Good luck!

Determined · Determined's Garage

I ultrasonically cleaned mine while submerged in fuel injector cleaner; I had no heat turned on (ultrasonic cleaner) for obvious reasons then I used some light air pressure to push the cleaner through them. I also painted them with high temperature engine paint to provide a nice finish. I would like to know how some of these performance shops balance them. I don't believe they are designed to be taken apart, does anyone know?
Best Regards,

Alex

patkeefe · 07-04-2006, 10:16 AM

Here is a helpfula nd interesting link:

http://forums.pelicanparts.com/porsche-911-technical-forum/272657-cis-fuel-distributer-cleanout-w-pics-post2666939.html#post2666939

Pat