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Much has been written about swapping Suzuki’s G16B 1.6 liter 16-valve engine into the Samurai. It is mechanically very simple (as engine swaps go) but the wiring can be a daunting challenge for many. To date it has been necessary for the DIY builder to perform extensive research, gather all the information they can find, try to make sense of it, and take their best shot (or pay someone that has already done it). There is no one “correct” way to make this engine swap. The variations are nearly endless. Much of it involves personal preference. What is presented here is a process that is known to be successful, along with some of the more familiar options. ALL WIRING SHOULD BE DONE WITH THE BATTERY REMOVED FROM THE VEHICLE 1.1. It is HIGHLY RECCOMMENED that you purchase the appropriate Field Service Manual for your engine model year (either digital or print copy). Though there are only two sections that are relevant to a transplanted engine the information is absolutely invaluable. Much – but not all – of the required Information is also available in most aftermarket vehicle specific service manuals (Haynes, Chilton’s, etc.) The pertinent sections (6 & 8) of the 1996 Tracker FSM may be downloaded for free from Acksfaq.com (donations are appreciated). 1.2. 1992 through 1998 Suzuki/Geo (GM) vehicles with G16B (1.6 liter 16-valve) engines can be identified by the 8th digit in the Vehicle Identification Number. “0” for Suzuki badged vehicles, “6” for Geo’s (“U” indicates an 8-valve 1.6L). 1.3. The most common set-up, and arguably the simplest, mates a donor Tracker or Sidekick engine, with the Samurai 5- spd Manual Transmission. Donor engines with Automatic Transmissions (3 or 4 A/T) are easily rewired to work with the Samurai 5-spd M/T. Specific notations for installing the donor engine with a 3 A/T appear where necessary. The 4 A/T is significantly more complicated and is not included in these instructions. 1.4. It is preferred (but not required) that the ECM and engine be of the same model year. However, as long as the computer has all the necessary inputs and outputs it makes no difference what motor it is physically controlling. It should be noted that OBD1 vehicles (1995 & earlier) are much less complex than OBD2 vehicles (1996 & after). The earlier technology is far easier for the amateur auto electrician to manage. OBD2, being more modern, has nearly twice as many sensors & controls. Properly tuned, OBD2 engines will provide slightly more power, better fuel economy, and cleaner emissions. Replacement parts are also easier to find, but of course, are more expensive.

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DESCRIPTION Some vehicles may experience a body vibration when driving approximately 55mph. This symptom is due to the characteristics of the No. 3 & No. 4 engine mounts. Modified No. 3 & No. 4 engine mounts have been established for service only. Customers having this concern should have their vehicle repaired using the following repair procedure. REPAIR PROCEDURE IMPORTANT NOTE: • This repair should only be performed if all tires and rims are confirmed to be in balance and all suspension components are in proper working condition. • Notify customers that use of the modified mounts will reduce vibration at cruising speed but may increase vibration at idle. NOTE: Because idle vibration may increase, it is highly recommended to continue using mass production mounts for all other service concerns. 1. Verify concern. 2. Replace the No. 3 & 4 engine mounts with service parts according to the appropriate Workshop Manual section 01-10 ENGINE REMOVAL/INSTALLATION. 3. Center the new engine mounts as outlined in ENGINE MOUNT CENTERING PROCEDURE. 4. Verify repair. ENGINE MOUNT CENTERING PROCEDURE No. 1, No. 3 and No. 4 Engine Mount Adjustment 1. Warm up the engine. 2. Raise and support vehicle on a hoist. 3. Remove engine under cover. 4. Lower the vehicle until the front tires lightly touch the ground. 5. Secure the engine and transaxle using an engine jack and attachment as instructed in No.3 Engine Mount And No.4 Engine Mount Rubber Installation Note in appropriate Workshop Manual, section 01-10 MECHANICAL. 6. Remove two bolts from No. 3 engine mount bracket. REMOVE THE BOLTS 7. Lift engine using jack until No.3 engine mount is lifted slightly from vehicle body. NOTE: • Do not raise engine too much or A/C pipe damage may occur. 8. Move the engine mount rubber or engine until installation hole on the vehicle body aligns with hole in the engine mount bracket. ENGINE MOUNT BRACKET 1532c SHOWN BEFORE ALIGNING THE HOLES SHOWN AFTER ALIGNING THE HOLES 9. Lower the jack and tighten bolts on No. 3 engine mount bracket. Tightening torque: 55.0-77.3 ft-lbf (74.5-04.9 N.m) NOTE: 10. With engine supported as described in STEP 5, remove four (4) nuts and two (2) bolts from No. 4 engine mount top plate. Remove top plate. NOTE: 11. Lift engine again using jack until No.4 engine mount is lifted slightly from vehicle body. NOTE: 12. With top plate of No. 4 engine mount removed, move engine mount bottom plate or engine until all four (4) installation studs on the vehicle align with the engine mount holes. • Do not allow the engine mount bracket to be misaligned. • To access the mount, remove battery box. • Do not raise engine too much or A/C pipe damage may occur. ALIGN THE 4 STUDS IN THE PLATE HOLES 13. Place top plate back on and tighten No. 4 engine mount bracket nuts and bolts to torque indicated. Tightening torque: A.32.5-45.0 ft-lbf (44.0-61.0 N.m) B.61.1-86.7 in-lbf (6.9-9.8 N.m) TIGHTEN BOLTS IN SEQUENCE SHOWN 1532e 14. Lift engine again using jack and loosen the two bolts on the No. 1 engine mount rubber until slightly loose on the No. 1 engine mount rubber.

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Engine Options for the Samurai There are a number of possibilities for changing the engine in your Samurai, depending on where you live and what you want to accomplish. Suzuki Sidekick or Geo Tracker I (1989-1995) – The block from the 1.6 8-valve Sidekick or Tracker can be swapped in easily. This is by far the simplest upgrade, requiring modified engine mounts, transmission adapter plate, and provision (some sort of lift, or an adaptation from a G12 series engine) for the oil pan. Intake and Exhaust Manifold will fit, and finally the addition of an electronic fuel pump since the 1.6 head does not have lobes on it for the fuel pump. Petroworks can supply almost all necessary parts required for this task. Motors are a little harder to come by though. The next level to this swap would be the use of the Sidekick/Tracker Throttle Body intake system. This is a much more complex task and requires the complete under hood wiring harness, parts of the under dash harness, and computer from a donor car. Modification of the harness is required to install it into the Samurai. TR Also, the Speedometer cluster needs to be modified on the Samurai to add in a Vehicle Speed Sensor (VSS). This is needed by the computer to adjust timing during operation. Suzuki Swift – This is a G13 series engine with a counterbalanced crankshaft, twin overhead cams and fuel injection. One of the easier swaps to make, requiring only some minor wiring changes and a hole in the Samurai’s firewall for the horizontally mounted distributor (this engine was originally designed for a transverse mounting). Suzuki Sidekick or Geo Tracker II (1993-1995) – The motor from these cars are 1.6 16v, multiport fuel-injected. These motors are usually found in 4 door cars and will say “16 Valve” On the valve cover, Timing Belt cover or injector manifold. This is a much more complicated swap and requires a lot of wiring to interface with the Samurai harness.

1993 ENGINE PERFORMANCE Suzuki of America Corp. On-Vehicle Adjustments Suzuki; Samurai, Sidekick, Swift
ENGINE MECHANICAL Before performing any on-vehicle adjustments to fuel or ignition system, ensure engine mechanical condition is okay.
VALVE CLEARANCE NOTE: Swift DOHC uses hydraulic lifters. No adjustments are required. Samurai & Sidekick 1) Remove valve cover. Rotate engine until zero degree (TDC) timing mark of timing belt cover is in line with timing mark on crankshaft pulley. See Fig. 1. 2) Ensure cylinder No. 1 is at TDC on compression stroke. Remove distributor cap. On Samurai and Sidekick (TBI), ensure rotor is pointed upward at distributor hold-down bolt and to No. 1 terminal of distributor cap. On Sidekick (MPI), ensure rotor is at about 1 o’clock position and pointed to No. 1 terminal of distributor cap. If rotor is not as described, rotate crankshaft 360 degrees

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Introduction IMPORTANT It is mandatory that the VVT-i gear actuator bolts, actuator center section alignment, and actuator body be inspected BEFORE performing this TSB. If no concerns are noted with these parts, this TSB does NOT apply. Some 2005 – 2009 model year vehicles with 2GR-FE engines may exhibit a ticking/clicking type noise from the cylinder head cover area which may be accompanied by a MIL “ON” and one or more VVT-i related Diagnostic Trouble Codes (DTCs). Please use the following repair procedure to address customer concerns. Inspection Procedure 1. Start the engine and listen for any ticking/clicking type noises coming from the VVT-i gear area of the engine. NOTE This condition may or may not be accompanied by one or more of the following DTCs stored in the Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM): • P0014: Camshaft Position “B” – Timing Advanced or System Performance (Bank 1) • P0015: Camshaft Position “B” Timing Over Retarded (Bank 1) • P0017: Crankshaft Position Camshaft Position Correlation (Bank 1 Sensor B) • P0018: Crankshaft Position Camshaft Position Correlation (Bank 2 Sensor A) • P0024: Camshaft Position “B” – Timing Over-Advanced or System Performance (Bank 2) • P0025: Camshaft Position “B” – Timing Over-Retarded (Bank 2) 2. Remove the cylinder head cover and inspect the exhaust VVT-i gear assembly on the affected cylinder bank. NOTE If NO concerns are found with the VVT-i gear actuator bolts, the actuator center section alignment, or actuator body, this TSB does NOT apply. Refer to Repair Manual procedures for further diagnosis. Repair Procedure 1. If any concerns are noted with the exhaust VVT-i gear bolts or actuator follow the four steps below: A. Replace the camshaft housing sub-assembly, exhaust camshaft, and exhaust VVT-i gear assembly on the affected bank. B. Inspect the intake VVT-i gear assembly and bolts on the affected bank. Replace the intake VVT-i gear assembly if necessary. C. Inspect the opposite bank exhaust VVT-i gear actuator and bolts. If any concerns are noted replace the opposite bank camshaft housing sub-assembly, exhaust camshaft, and exhaust VVT-i gear assembly. D. Inspect the opposite bank intake gear actuator assembly and bolts. Replace the intake VVT-i gear assembly if necessary. For complete disassembly procedures refer to the Technical Information System (TIS), applicable model and model year Repair Manual: • 2005 Avalon: Engine/Hybrid System – Engine Mechanical – “Engine Mechanical: Camshaft (LH Bank) / (RH Bank) (2GR-FE): Replacement” • 2006 / 2007 / 2008 / 2009 Avalon: Engine/Hybrid System – Engine Mechanical – “2GR-FE Engine Mechanical: Engine Unit: Disassembly” • 2007 / 2008 / 2009 Camry: Engine/Hybrid System – Engine Mechanical – “2GR-FE Engine Mechanical: Engine Unit: Disassembly” • 2008 / 2009 Highlander: Engine/Hybrid System – Engine Mechanical – “2GR-FE Engine Mechanical: Engine Unit: Disassembly” • 2006 / 2007 / 2008 / 2009 RAV4: Engine/Hybrid System – Engine Mechanical – “2GR-FE Engine Mechanical: Engine Unit: Disassembly”