2.7T_Pressure_Tester.pdf

Intake Pressure Tester for 2.7T Engine

Variations in boost production, air/fuel mixture, and drivability can often be traced to leaks in the in-

take system of the 2.7T engine, especially when equipped with larger fuel injectors. Finding and

eliminating leaks makes your 2.7T ownership and any long distance trouble shooting with your tuner

a much better experience.

We came up with an inexpensive method that works like a charm to pressurize the pre-throttle body

side of the intake system of the 2.7T. Feel free to source the parts on your own or you can pur-

chase the entire kit from us for a nominal price. If you want to make your own, we suggest using

www.mcmaster.com as a source for the parts. We have included the part numbers below.

A regulated compressed air source is required to operate this tester. As with all compressed air ap-

plications, take care during operation as the system will be under pressure.

Parts list:

Tool list:

1 3” rubber straight joining clamp

McMaster # 4511K78

9/16” box end wrench

31/64” drill bit

1 3” PVC cap

McMaster # 9102K223

Drill

Flat head screwdriver

1 7/8” vinyl cap

McMaster # 9753K86

Regulated compresser air source

Pliers

1 1/4” air coupler, industrial shape

McMaster # 6534K46

1 Hose clamp

McMaster # 5388K18

Using the 31/64” drill bit, drill a hole in the center of the PVC cap.

Thread the air coupler fitting into the cap using the 9/16” box end

wrench. The threads on the fitting will cut into the cap and make an

air tight seal. Thread the fitting down until flush with the cap, as in

Figure 1.

Install the PVC cap into the rubber joining clamp and tighten down the

large hose clamp fully.

Figure 1: Fitting installed in PVC cap

Any questions or comments, let us know: AWE-Tuning.com 215-658-1670 Page 1 of 2

Installation of the tester requires removal of the

intake hose running between the MAF and Y-pipe

(at point A in Figure 2. AWE RSK04 components

shown in Figure 2, but OEM look similar). Use pli-

ers to unload the springs clamps at each end of the

hose (flathead screwdriver with AWE RSK04 hose).

Remove the side engine covers (removed in Figure

2).

Unclip the PCV damper from Y-pipe (at point B in

Figure 2) by squeezing the clip. Figure 2 shows a

2000 and early 2001 configuration, late 2001 and

2002 will appear similar.

Figure 2: Engine bay

Close the PCV (Positive Crankcase Ventilation) branch off

the Y-pipe with the vinyl cap and hose clamp. Slip the

hose clamp over the cap and tighten fully.

Figure 3 shows 2000 and early 2001 configuration. Late

2001 and 2002 will appear slightly different.

Remove the oil filler cap, as this will eliminate a hiss noise

as air pressurizes the crankcase during testing.

Figure 3: Capping off PCV branch

Slide the rubber clamp assembly over the inlet of the

Y-pipe and tighten down the second large hose

clamp fully.

With air pressure turned off, attach the end of an air

hose to the air fitting on the PVC cap as in Figure 4.

SLOWLY increase the air pressure to the system via

a regulator. No more than 15 psi is needed to ex-

pose any leaks in the system. Be sure to stand clear

in case the tester pops off.

With pressure in the system, listen for any leaks

coming from the intake and fix as needed. Common

leaks are at hose junctions and intercooler end caps.

Figure 4: Tester installed

While this tester pressurizes only the portion of the intake before the throttle body, that is usually

enough to expose any of the common intake leaks that occur on the 2.7T engine.

Any questions or comments, let us know: AWE-Tuning.com 215-658-1670 Page 2 of 2

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika: