Warranty and Troubleshooting

Warranty Information/Procedure

1.WARRANTY POLICIES

If any products are proven to Kinugawa Turbo Systems’ satisfaction to have been defective at the time of sale, We will make an appropriate adjustment in the original sales price of such product or at Kinugawa Turbo Systems’ election, replace the defective product. Kinugawa Turbo Systems shall provide information for limited warranty extended to the consumer of

commodities. Said warranty applies only to “completed” and “unaltered” turbochargers only (spare parts exculded) sold by Kinugawa Turbo Systems; any alterations made to the completed products by any party other than Kinugawa Turbo Systems shall negate such warranty. Warranty shall cover 100% of parts for one (1) year from the date of purchase. All other products sold by Kinugawa Turbo Systems shall be covered by an “exchange” of the same product within seven (7) days from the date of purchase and provided that the product to be exchanged has not been used in any manner.

1.1. For none- Kinugawa Turbo Systems branded and completed turbo units, warranties expressed or implied are represented by the manufacture of the product and not Kinugawa Turbo Systems.

1.2. Kinugawa Turbo Systems warrants to the purchaser of its products that will during the warranty period and subject to the limitations and exclusions comply with all applicable specifications and be free from defects in materials and artistry. Kinugawa Turbo Systems’ liability is limited to the repair or replacement, at our option, of any warrantable product returned prepaid with complete service history, if found by Kinugawa Turbo Systems to be defective in material or artistry. All replacement units shall be rebuilt units similar in quality to the unit replaced.

1.3. Kinugawa Turbo Systems’ warranty shall not apply to any unit that has been improperly stored or installed, subject to misapplication, improper operating conditions, accidents or neglect, or has been poorly repaired or altered or otherwise mistreated in the field. Unauthorized disassembly will void all warranty consideration. TURBOCHARGER WARRANTY SHALL NOT APPLY TO ANY TURBOCHARGER THAT

SHOWS EVIDENCE OF (1) Hot shut down. (2) Insufficient lubrication. (3) Oil Contamination/ Foreign object in lubricating oil. (4) Any damage to either the compressor wheel or the turbine wheel caused by a foreign object. (5) Over-boosting (over Kinugawa turbocharger standard pressure of 1.2 bar or 17psi).

1.4. Kinugawa Turbo Systems shall not be liable to purchaser under any circumstances for any special, incidental or consequential damages, including without limitation, damage to or loss of property other than for turbocharger products; costs incurred in installation, repair or replacement; lost profits, revenue or

opportunity; loss of use; damages resulting from or related to downtime of turbocharger products; the cost of replacement transportation, power or compression; the cost of substitute products; or claims of Distributor's customers for such damages, howsoever caused, and whether based on warranty, contract and/or tort(including negligence, strict liability or otherwise).

1.5. The obligations in connection with the design, manufacture, sale, delivery, and/or use of Kinugawa Turbo Systems’ turbochargers and related parts and/or services shall in no circumstance exceed in aggregate a sum equal to the amount paid to Kinugawa Turbo Systems for turbocharger products subject to customer's warranty claims.



2.TURBOCHARGERS FOR RACING OR COMPETITION USE

2.1 Turbochargers used for any form of racing or competition and/or set to run higher than standard boost pressure are supplied in good faith and on the understanding that no guarantee is given in respect of performance or reliability of the product, either by the manufacturers or Kinugawa Turbo Systems.

2.2 Kinugawa Turbo Systems cannot be held responsible for personal injury or damage caused to the engine or vehicle by a failed turbocharger.


3. OTHER WARRANTY CONDITIONS

3.1 The turbocharger must be fitted to an engine that is in good working order so that the operation of the turbocharger is not prejudiced.

3.2 The engine oil, oil filter, and air filter must be changed at the point of turbocharger fitment, using only components and materials approved by the vehicle manufacturers. In the case of petrol engine turbochargers, Kinugawa Turbo Systems only recommends fully synthetic oil with an SAE rating of 10W-40 or higher and which exceeds the following specifications: SH/CD or CCMC G5/PD2 unless otherwise stated by the vehicle manufacturer. For further information

and advice, please contact our Technical Sales Team.

3.3 The purchasers/installers shall satisfy themselves that all reasonable steps have been taken to ensure that any original cause of turbocharger failure has been eliminated and that the turbocharger is correct for the application,

and is fitted entirely in line with the engine manufacturer’s recommendations.

3.4 Warranty may be denied in the event of either the turbocharger or the engine being modified to increase power output if this modification is prejudicial to the performance of the turbocharger.

3.5 Under no circumstances should a vehicle be used if a turbocharger problem is suspected, as this could cause further damage to the turbocharger and/or engine.

4. LIMITATION AND EXCLUSION OF LIABILITIES

4.1 Kinugawa Turbo Systems Performance Kits are professional aftermarket products only designed for certain racing vehicles driven on particular racing tracks and shall only be used on racing vehicles that will never be driven on public roads or highways. Kinugawa Turbo Systems Performance Kits are not legal for the use in vehicles on public roads or other road to which public road law applies. Any vehicle modifications using Kinugawa Turbo Systems Performance Kits are AT YOUR OWN RESPONSIBILITY and AT YOUR OWN RISK. Only use Kinugawa Turbo Systems Performance Kits in compliance with all applicable laws, regulations and ordinances (including but not limited to emission, noise, operating license, performance, safety and type-approval aspects). A vehicle modification using Kinugawa Turbo Systems Performance Kits may particularly affect or void a vehicle’s warranty, operating license or type-approval. Moreover, only use Kinugawa Turbo Systems Performance Kits in compliance with all applicable racing and racing track provisions. It is YOUR OWN RESPONSIBILITY AND RISK to ensure that your Kinugawa Turbo Systems Performance Kit fits your vehicle and area of application. YOU MUST ENSURE LAWFUL AND SAFE OPERATIONS AT ANY TIME. You should particularly consult the owner’s manual and service manual of your vehicle. You should also contact your vehicle’s manufacturer to determine what effects modifications may have on important aspects such as safety, warranty, performance, etc. Only install and use Kinugawa Turbo Systems Performance Kits if you have fully read and understood this important safety information and if you fully agree with the terms and conditions set forth therein.

Symptom: No Boost

Warning: The troubleshooting guide may only be conducted with the vehicle in drive-able condition. Please stop the trials at signs of engine malfunction such as black smoke, excessive oil consumption, or run-away engine.

 

Check for Boost Leak:

Firstly, please check the following 4 points before inspection of the turbocharger.

  1. Compressor housing outlet, intercooler circuit, and connections.
  2. Turbine Housing inlet, manifold circuit, gasket, and connections.
  3. Turbine Housing outlet, dump pipe circuit, gaskets and connections.
  4. Compressor housing inlet, air filter clean situation and connections.

Second, check the preload process of the adjustable actuator here

kinugawa turbo systems make sure that correct tightening of connections

 

Check for Restricted exhaust:

The cause of low turbo boost pressure can be a result of a restricted exhaust as a result of having the turbo turbine connected and obstructing it. This then results in the need for the engine to push back against the exhaust with a larger force, decreasing the amount of energy that can be transmitted from the cylinders for engine power when driving.

 

Check for Wastegate Jamming:

Please check the functions of the wastegate actuator. Signs that indicate bad news for your turbocharger is if the wastegate is immobile or does not close fully. At this point, one thing that you can try on the spot is to attempt to disconnect the wastegate and work the linkage by hand to check for binding and proper closure.

Symptom: Oil Leak From Compressor Housing

Warning: The troubleshooting guide may only be conducted with the vehicle in drive-able condition. Please stop the trials at signs of engine malfunction such as black smoke, excessive oil consumption, or run-away engine.

 

Oil leaks can be caused by many factors, the main factor being incorrect pressure within the compressor and turbine housings. Oil leaks can cause vital damage to the bearing systems and occur within seconds of turbocharging.

 

Check for Boost Leaks:

Firstly, please check the following 4 points before inspection of the turbocharger.

  1. Compressor housing outlet, intercooler circuit, and connections.
  2. Turbine Housing inlet, manifold circuit, gasket, and connections.
  3. Turbine Housing outlet, dump pipe circuit, gaskets and connections.
  4. Compressor housing inlet, air filter clean situation and connections.

kinugawa turbo systems make sure that correct tightening of connections

 

When a turbocharger is installed correctly, it should NOT leak oil, however, there can be cases where oil leaks occur. The following highlights some of the main causes and signs of oil leaks:

Possible Cause

   

Possible Remedy

Restricted engine crankcase breather

   

Refer to engine manufacturer's manual, clear restriction

Turbocharger bearing housing sludged or coked

   

Change engine oil and oil filter, overhaul or replace turbocharger as required

Worn engine piston rings or liners

 

Refer to engine manufacturer's manual and repair as required

Burnt valves and/or pistons

 

Refer to engine manufacturer's manual and repair as required

Excessive dirt build up on compressor wheel and/or diffuser vanes

 

Clean in accordance with details/instructions from Kinugawa Turbo Systems

Turbocharger damaged

 

Find and correct cause of failure, repair or replace turbocharger as necessary

Restricted turbocharger oil drain line

 

Remove restriction or replace damaged parts as required

 

Final Checks:

  • Check for correct oil levels and pressure
  • Ensure air and oil drain systems are clear from blockages or restrictions
  • Check the exhaust system to make sure there are no leaks present
  • Do not use silicone on oil gaskets as it can easily become detached and block oil passages.
  • Ensure DPF (diesel particulate filter) and Catalytic converter are free of blockages.

Symptom: Oil Leak From Turbine Housing

Warning: The troubleshooting guide may only be conducted with the vehicle in drive-able condition. Please stop the trials at signs of engine malfunction such as black smoke, excessive oil consumption, or run-away engine.

 

Oil leaks can be caused by many factors, the main factor being incorrect pressure within the compressor and turbine housings. Oil leaks can cause vital damage to the bearing systems and occur within seconds of turbocharging.

 

Check for Boost Leaks:

Firstly, please check the following 4 points before inspection of the turbocharger.

  1. Compressor housing outlet, intercooler circuit, and connections.
  2. Turbine Housing inlet, manifold circuit, gasket, and connections.
  3. Turbine Housing outlet, dump pipe circuit, gaskets and connections.
  4. Compressor housing inlet, air filter clean situation and connections.

kinugawa turbo systems make sure that correct tightening of connections

 

When a turbocharger is installed correctly, it should NOT leak oil, however, there can be cases where oil leaks occur. The following highlights some of the main causes and signs of oil leaks:

Possible Cause

   

Possible Remedy

Restricted engine crankcase breather

   

Refer to engine manufacturer's manual, clear restriction

Turbocharger bearing housing sludged or coked

   

Change engine oil and oil filter, overhaul or replace turbocharger as required

Worn engine piston rings or liners

 

Refer to engine manufacturer's manual and repair as required

Burnt valves and/or pistons

 

Refer to engine manufacturer's manual and repair as required

Excessive dirt build up on compressor wheel and/or diffuser vanes

 

Clean in accordance with details/instructions from Kinugawa Turbo Systems

Turbocharger damaged

 

Find and correct cause of failure, repair or replace turbocharger as necessary

Restricted turbocharger oil drain line

 

Remove restriction or replace damaged parts as required

 

Final Checks:

  • Check for correct oil levels and pressure
  • Ensure air and oil drain systems are clear from blockages or restrictions
  • Check the exhaust system to make sure there are no leaks present
  • Do not use silicone on oil gaskets as it can easily become detached and block oil passages.
  • Ensure DPF (diesel particulate filter) and Catalytic converter are free of blockages.