'94 Accord 208k Cylinder #3 Not Firing

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overconsolidated@gmail.com - 03 Apr 2008 05:04 GMT

'94 Accord Sedan LX 208k

Yesterday while climbing a hill I felt a loss of power and suddenly a
lot of shaking. Prior to this the car had run smoothly, but did smoke
blue smoke at start up. Last night I changed out the plugs. Most had
oil on them so I changed out the valve cover and plug gaskets. The
smoke has since stopped, but cylinder #3 is not firing. The old plug
was black, and the new one was black too after running for a minute. I
know the wires are good, I didn't know better and tested the voltage
with the engine running and I think I burned my multimeter out.

I'm pretty sure compression in #3 is fine because I accidentally
started the car without the plug in and it sounded like a really loud
lawn mower or helicopter.

So now that I have run the car and fixed the gaskets, if I put a brand
new plug in #3 will it work? And will plugs covered in the black
carbon deposit stuff still fire, or are they toast?

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motsco_ - 03 Apr 2008 15:42 GMT

> '94 Accord Sedan LX 208k

I didn't know better and tested the voltage

> with the engine running and I think I burned my multimeter out.

========That's how we learn.

> I'm pretty sure compression in #3 is fine because I accidentally
> started the car without the plug in and it sounded like a really loud
> lawn mower or helicopter.

=========== When the car runs without a 'path' for the high voltage from
a plug wire, the arc can travel through the distributor and wreck the
igniter. Lets hope not. Since Hondas have no single high tension wire
you can isolate I like to put the plugs in a stainless steel cup with
the wires attached. I run a ground wire to the cup.

> So now that I have run the car and fixed the gaskets, if I put a brand
> new plug in #3 will it work? And will plugs covered in the black
> carbon deposit stuff still fire, or are they toast?

============== Buy yourself four new NGK plugs or clean up the dirty
ones. You may have blazed a new trail for the spark under the
distributor cap. How new is the cap and rotor?

'Curly'

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Elle - 03 Apr 2008 15:56 GMT

> '94 Accord Sedan LX 208k
>
[quoted text clipped - 6 lines]
> oil on them so I changed out the valve cover and plug
> gaskets.

Unfortunately there is one other set of seals that likely
are failing at this point and causing the oil to get on the
plug tops. See discussion at
http://honda.lioness.googlepages.com/oilinthesparkplugtubes

The

> smoke has since stopped, but cylinder #3 is not firing.
> The old plug
[quoted text clipped - 4 lines]
> with the engine running and I think I burned my multimeter
> out.

How old are the wires and are they OEM?

Are you using OEM plugs?

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overconsolidated@gmail.com - 03 Apr 2008 21:29 GMT

> Unfortunately there is one other set of seals that likely
> are failing at this point and causing the oil to get on the
> plug tops. See discussion athttp://honda.lioness.googlepages.com/oilinthesparkplugtubes

There is no more oil in the plug chambers. The wires are working and
sparking fine. Is it possible that maybe some residue from burning oil
has clogged the injectors?

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Tegger - 04 Apr 2008 00:14 GMT

overconsolidated@gmail.com wrote in news:ab23f681-77fd-4ffc-bb74-
47623e4e651c@s37g2000prg.googlegroups.com:

> '94 Accord Sedan LX 208k
>
[quoted text clipped - 10 lines]
> started the car without the plug in and it sounded like a really loud
> lawn mower or helicopter.

Check the compression anyway. I think you broke a ring.

Signature

Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

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