go to ngk.com type your model in and they will tell you
how do you change the spark plugs on a 1991 q 45 infiniti
There are four spark plugs on each side of your 1991 Chevrolet engine. The spark plugs will be near the bottom of the engine.
In the engine... If it is a a straight six. They run in a row. follow the spark plugs wires to them.
It has a belt driven automatic transmission. Similar to a snowmobile.
You only set the timiming for engines with spark plugs, and diesels don't use spark plugs.
The 1991 Mercury Marquis spark plug gap is .034. Most spark plugs will be pre-gapped by the spark plug manufacturer.
0.35
.060"
.031 in
The first 3 spark plugs to the right are easy to change,the one on the left you have to loosen up the alternater to get to.
follow the spark plug wire to the engine head and there they are
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.