Installation Recommendations Manual

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TURBOCHARGER INSTALLATION

RECOMMENDATIONS

THINGS TO KNOW ABOUT

TURBOCHARGER INSTALLATIONS

Damage to a Turbocharger is generally a secondary result. Turbochargers are asked

to perform in some pretty hostile environments. Any preventive measures taken at the

time of installation may prevent damage. The following items should be taken into

consideration for a proper turbocharger installation.

1. Be sure the turbocharger is receiving oil from a filtered source.

2. A quality paper element style oil filter is recommended.

3. Be sure the turbocharger has a properly sized oil feed line.

4. The oil return line size needs to be a minimum of a -10AN or 5/8 of an inch

inside diameter or larger.

5. Install coolant lines if applicable.

6. There should be at least 1 inch of clearance around the turbocharger and any

structural member of the car.

7. There needs to be at least one flexible rubber style compressor cover discharge

tube coupling.

8. A ported shroud compressor cover should be utilized whenever possible.

COMMON CAUSES OF TURBOCHARGER ISSUES

Turbochargers leaking oil and smoking. Turbochargers will leak oil and smoke due to

multiple reasons which are typically installation related.

1. An inadequate oil return is the primary cause of oil leakage.

 The turbocharger needs to be mounted as high as possible so the oil will

gravity return back to the engine.

 The oil return line needs to be a minimum of a -10AN or 5/8 of an inch inside

diameter.

 Try to use tube type hose fittings that do not have any restrictive tight radius

bends.

 If utilizing an oil return pump the pump should be mounted lower than the oil

drain on the turbocharger. It may also be necessary to have an oil reservoir

installed in the oil return prior to the pump. The return oil from the

turbocharger may also contain air bubbles. The air bubbles may have to settle

out of the oil before the pump will pump the oil.

 If utilizing a oil return pump in the system and if the pump is not size properly

or if there is excessive crankcase pressure this may cause the turbocharger to

leaking oil.

Summary of content (5 pages)

PAGE 1
TURBOCHARGER INSTALLATION RECOMMENDATIONS THINGS TO KNOW ABOUT TURBOCHARGER INSTALLATIONS Damage to a Turbocharger is generally a secondary result. Turbochargers are asked to perform in some pretty hostile environments. Any preventive measures taken at the time of installation may prevent damage. The following items should be taken into consideration for a proper turbocharger installation. 1. 2. 3. 4. 5. 6. 7. 8. Be sure the turbocharger is receiving oil from a filtered source.
PAGE 2
1. Crankcase ventilation is critical as well. If the engine has positive crankcase pressure this will also pressurize the turbochargers oil drain. With the oil drain compromised due to pressure this could also cause the turbocharger to leak oil. On systems utilizing a PCV valve be sure it is of a design used for boosted applications. Also be sure it is proper working order.
PAGE 3
TURBOCHARGER LUBRICATION – FEED LOCATION Turbocharger lubrication feed locations may vary from engine manufacture and application. Sometimes the best resource for information on turbocharger lubricant feed locations is from the professionals that specialize in a particular vehicle or engine A recommended location to pick up lubricant to feed the turbocharger would be a pressure location as close to the outlet side of the oil filter.
PAGE 4
2. Turbocharger oil feed line sizes. (BALL BEARING) The oil feed to ball bearing turbochargers may be restricted but may not always be necessary. If a ball bearing turbocharger is supplied with an oil feed restrictor fitting it is suggested that this fitting be utilized. All single ball bearing turbocharger applications should utilize -4AN or 1/4 inch inside diameter oil feed line.
PAGE 5
TURBOCHARGER CLEARENCE Proper clearance around the turbocharger and any structural member of the vehicle is crucial to the turbochargers longevity. Anytime a structural member of the vehicle comes in contact with the turbo it can cause side loading. Side loading is when stresses are placed on the outside of the turbocharger which may push, pull, or twist the turbocharger which may cause the rotating group to crash into the housings. 1.