Quote:
Originally Posted by tower74
Really, again with this  ? My guess would be if that's the case will most STS kits they would no longer be in business. |
Wow you're an idiot. I've been around sts kits since the first ones came out. Now please go away so I can help.
The oil inlet to the turbo has a brass piece in it with a check valve. This valve is intended to keep the oil from flowing into the tubo housing after the vehicle has been shut down. If it does fill up the housing over half way it is possible for oil to flow past the bushings into the exhaust/intake compressor housings. On start up this oil will be forced out the exhaust or into the intake. The idea is to test the operation of the check valve.
And the filter.."The K&N Pre-charger filter cover is for normal driving use to keep the filter clean during wet and/or dusty conditions. This cover has nearly 1/10th of the surface area of the actual air filter and is restrictive to air flow. The turbocharger will pull air through this cover by creating a vacuum between the filter and the turbocharger. If the cover is dirty, this vacuum will completely collapse and destroy the air filter. This high vacuum will also suck oil from the center section of the turbocharger into the intake piping. Remove the Pre-charger filter during any hard acceleration, racing, and or dyno runs. Any restriction in the air filter or cover will cause intake temperatures to rise dramastically during boosted conditions."
Check Valve Test:
1.) Take off the braided oil suppy line at the turbo center housing.
2.) Remove the check valve from the turbo and re-attach it to the braided oil supply line
3.) Place the line over a drain pan and start the vehicle. Let it run for a few seconds until there is a flow of oil through the chack valve.
4.) Shut off the vehicle and place the line and check valve on a few sheets of newspaper. There should not be more than a drop or two of oil leak out of the check valve onto the newspaper.
5.) If it leaks more than a drop or two of oil then get hold of STS and have it replaced. They will probably warranty it if the system is not too old.
6.) If it does not leak re-install the fitting and oil line to the turbo and get hold of STS about possible repairs that may be required to the turbo.