Re: Good Idea Bad Idea? drive a civic with no compression on a cylinder

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Re: Good Idea Bad Idea? drive a civic with no compression on a cylinder

T L	30 Nov 2005 00:13
Thanks for everyones input! I will unplug the injector and leave everything else as is. For a short trip, I doubt it will create any big problems. t >>> Curly, not sure what you mean. How could I ground the 'dummy' plug? >>> (IE make it stay grounded while driving the car.) [quoted text clipped - 7 lines] >Better to just leave the spark plug the way it is,not provide a "dummy" >plug.

Jim Yanik	29 Nov 2005 23:25
>> Curly, not sure what you mean. How could I ground the 'dummy' plug? >> (IE make it stay grounded while driving the car.) [quoted text clipped - 10 lines] > > Mike yes,the unburned fuel will throw off the O2 sensor,and the ECU will misadjust the other cylinders. Better to just leave the spark plug the way it is,not provide a "dummy" plug. Signature Jim Yanik jyanik at kua.net

Michael Pardee

29 Nov 2005 22:39

> Curly, not sure what you mean. How could I ground the 'dummy' plug? (IE
> make it stay grounded while driving the car.)
[quoted text clipped - 5 lines]
> the rings, and contamination of the engine oil? This is one of the big
> concerns I have.

This brings me to what I would add - disconnect the injector. Injecting fuel
into that cylinder will come to no good.

Mike

>>> and by risks, i mean could we do further damage to the
>>> cylinder/piston/valvetrain by driving with no compression and a damaged
[quoted text clipped - 11 lines]
>>
>>'Curly'

T L

29 Nov 2005 20:44

Curly, not sure what you mean. How could I ground the 'dummy' plug? (IE
make it stay grounded while driving the car.)

Also, if the gas in the cylinder is not being burned off, wouldn't it cause
the oil on the cylinder wall to be washed away, causing potential damage to
the rings, and contamination of the engine oil? This is one of the big
concerns I have.

>> and by risks, i mean could we do further damage to the
>> cylinder/piston/valvetrain by driving with no compression and a damaged valve.
[quoted text clipped - 10 lines]
>
>'Curly'

'Curly Q. Links'

29 Nov 2005 20:19

> and by risks, i mean could we do further damage to the
> cylinder/piston/valvetrain by driving with no compression and a damaged valve.
[quoted text clipped - 17 lines]
>
> --

-------------------------

I'd remove the spark plug wire from the plug and put an old 'dummy' plug
on the wire, with the metal part of the plug grounded, so it sparks
normally. Otherwise, I doubt anything bad could happen. (the high
tension needs to find it's way to ground or it will 'blaze a new trail"
inside the cap, or igniter)

'Curly'

T L	29 Nov 2005 19:18
and by risks, i mean could we do further damage to the cylinder/piston/valvetrain by driving with no compression and a damaged valve. t >As mentioned in previous posts, my sister's 99 civic has a damaged valve on >cylinder 3 due to a timing belt breaking. The car is running, albeit poorly [quoted text clipped - 10 lines] >Thanks >Terry in Winnipeg

T L

29 Nov 2005 19:17

As mentioned in previous posts, my sister's 99 civic has a damaged valve on
cylinder 3 due to a timing belt breaking. The car is running, albeit poorly
due to no compression on cylinder 3. Once you rev it up, it sounds OK.

Would it be safe to drive the car across town to a different mechanic in this
condition? What are the risks? Or should it be towed?

The drive would be in the city, 50 km/h or less, and revved as low as
possible. Its about a 14km trip.

Please advise.

Thanks
Terry in Winnipeg

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