Very odd. the engine started to miss (sounds like one cylinder is not
firing) for about 1 minute. It went away for 5 minutes, then came
back, I replaced the plugs (they didn't look too good anyway), but it
Has anyone run accross this before. My first thought is the plug
wires /dist/rotor, just need to be pointed in the right direction.
91Accord EX, 169,000 miles
You are on the right track. Things you can do to nail this
effectively and economically:
If the wires do poorly on a resistance check, replace. If
you do not understand this, ask away.
If the wires are more than five years old, replace.
How old are the cap and rotor in miles and years? Are they
Use only the OEM recommended spark plugs, and only OEM
wires, rotor and cap. These pay for themselves in the long
run. (Believe me, I am cheap and learned the hard way.) They
do make a difference in performance.
Regular poster here "Tegger" has a site with much good
wisdom on it. See in particular
Original owner, 1991 Civic, 201k miles
First telltale sign on a '91 might be red rust coating the inside of the
distributor cap. The bearing goes bad and starts leaking dust. When it
seizes, the timing belt breaks and you get a different car.
How often do you use injector cleaner? Might just be a sticking injector
Cap and rotor were way old, I assume. Before I bought it. We were
testing the spark on #2 cylinder, when we removed the wire, the car
quit. Either we smoked the distributor, or it doed right there. We
replaced it, and it is back to running bad, but it is running. We
have tested the spark on all the cylinders, it is nice and strong, but
number 2 cylinder is real weak. A compression test has revealed low
to no compression on that cylinder. Looks like we burned a valve or
They /are/ interference engines.
But when I say "held open", I mean by one or two thousandths of an inch.
That's more than enough to cause poor compression and valve burning with no
danger at all of the piston hitting the valve.
Pistons whack the valves when the timing belt breaks, not when the valve
clearances are off.
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