For the LH side remove the screen washer bottle (two screws and two hoses). For the RH side remove the air inlet ducting (two screws on the radiator crossmember, a bolt and a nut secure the rest of the ducting). Remove the plug leads by pulling on the lugs, not the cable. The plugs are best removed using a 3/8" drive 5/8" (16mm) spark plug socket on a 6" (150mm) extension, and a ratchet.
you dont
GO TO LEGACY GT .COM FOR THE COMPLETE INSTRUCTIONS
You may have a bad valve, did you replace the rotor and cap? Check the cap for cracks.
Changing spark plugs on a Subaru is no different from changing spark plugs on any other car. You may have to remove parts of the air induction system to make access easier. Be sure to check the gap on the new ones and use anti-seize on the threads.
gaps on all plugs should be .039-.043 inches
If you have no spark on the 1991 Subaru Legacy, you should check the spark plugs and spark plug wires for replacement. You should also check the battery and ignition for replacement.
un bolt it from the back side and take the plugs out, might have to take the carpet or plastic pieces in trunk out to access it, ive never done it on a subaru but i have on every other kind of car
Have a look at ; www.carbasics.co.uk
The spark plug gap, for your 2000 Subaru 2.5 liter engine, is .007. Most spark plugs will be pre-gapped by the spark plug manufacturer.
Check the distributor cap for excessive wear, also check your "wires." The easiest and cheapest thing is to change out both, it is probably time. Throw some new plugs in also.
Generally, to replace spark plugs on a Subaru vehicle, the spark plug boot should be removed. Then, the old spark plugs should be removed using a socket wrench, and replaced with new ones.
check fuel pressure, also a weak ignition coil or fould plugs could cause hard starting