The engine is a push rod type and therefore requires no timing belt changes. (Not bad for a 20 year old eh!)
It would be a good idea to get a Haynes repair manual at your local parts place for $20. It will pay for itself the first time you do anything. There are 27 steps to R and R the timing belt. btw your engine is a non-interference engine which means that when the belt breaks your engine doesn't get any damage. So get a manual and do it yourself.
The total timing advance for a Mazda RX-7 typically ranges from 20 to 30 degrees BTDC (before top dead center), depending on the engine model and year. For example, the 13B engine commonly found in RX-7s often has a specified total timing of around 25 degrees. It's important to refer to the specific service manual for the exact model and year, as timing settings can vary based on modifications and engine condition. Always ensure that the ignition timing is set correctly to optimize performance and prevent engine knocking.
5W-20
To time a Mazda RX-7 with an MSD ignition, start by ensuring the engine is at operating temperature and set to idle. Use a timing light to check the ignition timing by pointing it at the timing marks on the crankshaft pulley and the timing tab. Adjust the timing by loosening the distributor hold-down bolt and rotating the distributor until the desired timing is achieved, typically around 18-20 degrees BTDC for a stock RX-7. Finally, re-tighten the distributor bolt and recheck the timing to ensure it remains consistent.
align the cams to the E & I marks on cam. You will see notches right beside them. Align the crank with key way up.
Got this from the computer at the dodge dealership diagrams wont show on here you can e mail me for the full doc with the pics at jaylatunski92392@yahoo.com TIMING BELT REMOVAL Raise vehicle and remove accessory drive belt splash shield Accessory Drive Belt Splash Shield  1 - ATTACHING SCREW 2 - ATTACHING SCREWS 3 - SPLASH SHIELD Remove accessory drive belts. Refer to COOLING SYSTEM for procedure. Remove crankshaft pulley and damper Timing Belt System  1 - ENGINE SUPPORT BRACKET 2 - TIMING BELT COVER (UPPER OUTER-B) 3 - TIMING BELT TENSIONER 4 - CAMSHAFT SPROCKET 5 - GENERATOR BRACKET 6 - SUPPORT-A 7 - SUPPORT-B 8 - BRACKET 9 - TIMING BELT COVER (INNER-A) 10 - TIMING BELT 11 - CRANKSHAFT SPROCKET 12 - FLANGE 13 - TIMING BELT COVER (UPPER OUTER-A) 14 - TIMING BELT COVER (FRONT LOWER) 15 - ACCESS COVER 16 - TORSIONAL DAMPER 17 - CRANKSHAFT PULLY (A) 18 - CRANKSHAFT PULLY (B) Support engine and remove right side engine mount. Refer to procedure in this section. Remove engine support bracket Timing Belt Covers  1 - BRACKET HARNESS CLIP 2 - REAR COVER D BOLTS 3 - COVER (REAR REFERENCE) 4 - BRACKET HARNESS CLIP 5 - UPPER FRONT COVER (OUTER) 6 - UPPER REAR COVER 7 - LOWER COVER Remove timing belt covers Timing Belt Covers Same as the pic above Mark belt running direction for installation Timing Belt Engine Sprocket Timing  1 - TIMING MARK 2 - TIMING MARK (GENERATOR BRACKET) 3 - WATER PUMP PULLEY 4 - TIMING MARK 5 - TIMING MARK (TIMING BELT COVER INNER (A) 6 - MARK BELT 7 - CAMSHAFT SPROCKET (FRONT) 8 - TENSION SIDE 9 - TIMING MARK (OIL PUMP) 10 - TIMING MARK 11 - CRANKSHAFT SPROCKET 12 - TIMING BELT TENSIONER 13 - CAMSHAFT SPROCKET (REAR) Loosen timing belt tensioner bolt Timing Belt Tensioner and remove timing belt.  1 - BELT TENSIONER 2 - TENSIONER SPRING Remove crankshaft sprocket flange shield Timing Belt System Same pic as step 3 CAMSHAFT SPROCKETS You not gonna have the special tool so make your own lol To remove camshaft sprockets: Hold camshaft sprocket with Spanner Tool MB-990775. Loosen and remove bolt and washer Camshaft Sprockets Remove camshaft sprocket from camshaft. To install camshaft sprockets: Place camshaft sprocket on camshaft. Install bolt and washer to camshaft. Using Spanner Tool MB-990775, hold camshaft sprocket and torque bolt to 95 N·m (70 ft. lbs.) Camshaft Sprockets TIMING BELT TENSIONER Install timing belt tensioner and tensioner spring. Hook spring upper end to water pump pin and lower end to tensioner bracket with hook out Timing Belt Tensioner Pic in step 8 Turn timing belt tensioner counterclockwise full travel in adjustment slot and tighten bolt to temporarily hold this position Positioning Belt Tensioner  INSTALLATION Install timing belt on crankshaft sprocket and keep belt tight on tension side Timing Belt Engine Sprocket Timing( Same pic in step 7 )Install belt on the front (radiator side) camshaft sprocket. Install belt on the water pump pulley, rear camshaft sprocket and finally on the timing belt tensioner. Rotate the front camshaft sprocket in opposite direction to take up belt slack. Check that all timing marks are aligned Timing Belt Engine Sprocket Timing( Same pic in step 7) Install crankshaft sprocket flange Timing Belt SystemSame pic as in step 9 Loosen tensioner bolt and allow spring to tension timing belt. Turn crankshaft two full turns in clockwise direction. Turn smoothly and in clockwise direction ONLY. Align the timing marks on the sprockets and tighten the timing belt tensioner locking bolt to 28 N·m (250 in. lbs.) torque. Install timing belt covers. Install engine support bracket. Install right side engine mount. Install crankshaft damper and pulleys Timing Belt System Tighten damper center bolt to 135 N·m (100 ft. lbs.) Install accessory drive belts. Refer to COOLING SYSTEM for procedure. Install accessory drive belt splash shield Accessory Drive Belt Splash Shield WATER PUMP - 3.0L ENGINE REMOVAL Drain cooling system. Refer to procedure in this section. Remove timing belt. Refer to ENGINE for procedure. Remove water pump mounting bolts. Separate pump from water inlet pipe and remove water pump Water Pump - 3.0L Engine INSTALLATION Clean all gasket and O-ring surfaces on pump and water pipe inlet tube. Install new O-ring on water inlet pipe Water Pipe O-Ring Wet the O-ring (with water) to ease assembly CAUTION: Keep the O-ring free of oil or grease. Install new gasket on water pump and install pump inlet opening over water pipe, press assembly to cause water pipe insertion into pump housing. Install pump to block mounting bolts and tighten to 27 N·m (20 ft. lbs.) Install timing belt. Refer to ENGINE for procedure. Fill cooling system. Refer to procedure in this section.  1 - BOLTS27 N·m (240 IN. LBS.) 2 - WATER PUMP 3 - GASKET 4 - O-RING 5 - WATER PIPE
5W-20 is recommended
The 2005 Honda Civic EX with the 1.7L engine has a timing belt, not a chain. The timing belt for this application will cost about $20-30, depending on brand. The manufacturer's suggested replacement interval is at 110,000 miles or 84 months. If the car is regularly driven in extreme temperatures, the belt should be replaced at 60,000 miles. In any case, it's a good idea to at least inspect the belt and related components (water pump, tensioner) at around 60K miles.
It will take you approximately 6 hours, if you keep the timing marks in place. Also, consider replacing water pump at same time, it takes about 20 minutes longer to do it as you replace the timing belt.
3.3 l has no belt for timing .It has a chain. If serpentine belt is meant, then not more than 1 hour. It's a 20 minute job, if experienced, but most shops have a 1 hour minimum charge.
Usually the past driver :) Timing belt must be replaced every 60,000. To be safe, do it long before (ie 40-50k). Its an "interference" engine which means it self-destructs if the timing belt breaks. Very expensive to repair when that happens. If you buy a clean, untouched Eclipse, they are very dependable as long as you heed the timing belt advice. If some teenage or early 20's kid has tinkered and beat on the car, look elsewhere. The engine is very capable and solid, but teenage kids are known for going too far and increasing turbo boost to the point of engine damage.