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  #1 (permalink)  
Old 20 Feb 2007, 12:26 am
minique
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Default blown cylinder?, or easier fix?

i have a 91 accord with 230K..i recently pulled up to a toll booth,
and the car sounded like it was missing...a knowledgeable friend gave
it a spark test, and guessed that the car had blown a cylinder...ive
been running it locally, and its been getting me around...it idles
very rough, but when i get it over 20mph, it seems to smoothe out and
runs fine...any thoughts on this problem...is it cylinder, or an
easier fix...thanx for any suggestions...

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  #2 (permalink)  
Old 20 Feb 2007, 12:37 am
jim beam
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Default Re: blown cylinder?, or easier fix?

minique wrote:
> i have a 91 accord with 230K..i recently pulled up to a toll booth,
> and the car sounded like it was missing...a knowledgeable friend gave
> it a spark test, and guessed that the car had blown a cylinder...i�ve
> been running it locally, and it�s been getting me around...it idles
> very rough, but when i get it over 20mph, it seems to smoothe out and
> runs fine...any thoughts on this problem...is it cylinder, or an
> easier fix...thanx for any suggestions...
>


blown cylinder???

before jumping to such expensive conclusions, get a little data on your
side:

1. check the ecu for codes.
2. eliminate problems: make sure all the plugs are screwed in correctly,
that the rest of the ignition componentry works ok, etc.
3. if 1 & 2 doesn't lead you to a fix, and it likely will, do a
compression test.

report back with results.
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  #3 (permalink)  
Old 20 Feb 2007, 06:46 am
Michael Pardee
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Default Re: blown cylinder?, or easier fix?

"minique" <none@000.com> wrote in message
news:979899_7e826ebf0302887c037d235fe0291104@autob oardz.com...
>i have a 91 accord with 230K..i recently pulled up to a toll booth,
> and the car sounded like it was missing...a knowledgeable friend gave
> it a spark test, and guessed that the car had blown a cylinder...i've
> been running it locally, and it's been getting me around...it idles
> very rough, but when i get it over 20mph, it seems to smoothe out and
> runs fine...any thoughts on this problem...is it cylinder, or an
> easier fix...thanx for any suggestions...
>
>

As jim says - a failed cylinder is not the first thing we think of. If the
temperature is steady I wouldn't even put cylinders in the first bunch of
suspects.

If the power seems normal above 20 mph, add a check for vacuum leaks
(particularly cracked hoses to the intake manifold) to jim's list.

Mike


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  #4 (permalink)  
Old 20 Feb 2007, 12:14 pm
z
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Default Re: blown cylinder?, or easier fix?

On Feb 20, 1:26 am, minique <n...@000.com> wrote:
> i have a 91 accord with 230K..i recently pulled up to a toll booth,
> and the car sounded like it was missing...a knowledgeable friend gave
> it a spark test, and guessed that the car had blown a cylinder...i've
> been running it locally, and it's been getting me around...it idles
> very rough, but when i get it over 20mph, it seems to smoothe out and
> runs fine...any thoughts on this problem...is it cylinder, or an
> easier fix...thanx for any suggestions...


bad injector?

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  #5 (permalink)  
Old 20 Feb 2007, 05:26 pm
minique
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Default Re: Re: blown cylinder?, or easier fix?

"z" wrote:
>On Feb 20, 1:26 am, minique <n... RemoveThis @000.com> wrote:
>> i have a 91 accord with 230K..i recently pulled up to a toll

>booth,
>> and the car sounded like it was missing...a knowledgeable friend

>gave
>> it a spark test, and guessed that the car had blown a

>cylinder...ive
>> been running it locally, and its been getting me

>around...it idles
>> very rough, but when i get it over 20mph, it seems to smoothe

>out and
>> runs fine...any thoughts on this problem...is it cylinder, or an
>> easier fix...thanx for any suggestions...

>
>bad injector?

hi...this is minique once again...will have compression test done
tomorrow...mechanic said it could be bad valve,worst case scenario,
which would require valve and gasket job, taking it over 500
possibly...he said it probably would not be worth it, due to high
mileage. a month down the road it could happen to another valve...u
never know....best case scenario, a bad rocker arm, which he could fix
for around 100....stay tuned for the climactic ending of this
saga...and thanx for the feedback

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  #6 (permalink)  
Old 21 Feb 2007, 02:20 pm
Thom
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Default Re: blown cylinder?, or easier fix?

On Feb 20, 6:26 pm, minique <n...@000.com> wrote:
> "z" wrote:
> >On Feb 20, 1:26 am, minique <n... RemoveThis @000.com> wrote:
> >> i have a 91 accord with 230K..i recently pulled up to a toll

> >booth,
> >> and the car sounded like it was missing...a knowledgeable friend

> >gave
> >> it a spark test, and guessed that the car had blown a

> >cylinder...i've
> >> been running it locally, and it's been getting me

> >around...it idles
> >> very rough, but when i get it over 20mph, it seems to smoothe

> >out and
> >> runs fine...any thoughts on this problem...is it cylinder, or an
> >> easier fix...thanx for any suggestions...

>
> >bad injector?

>
> hi...this is minique once again...will have compression test done
> tomorrow...mechanic said it could be bad valve,worst case scenario,
> which would require valve and gasket job, taking it over 500
> possibly...he said it probably would not be worth it, due to high
> mileage. a month down the road it could happen to another valve...u
> never know....best case scenario, a bad rocker arm, which he could fix
> for around 100....stay tuned for the climactic ending of this
> saga...and thanx for the feedback
>
> --
> Posted at author's request, usinghttp://www.AutoBoardz.cominterface
> Articles individually verified to usenet standards. Visit URL to contact author/report abuse
> Thread archive:http://www.AutoBoardz.com/blown-cyli...ct206871.html- Hide quoted text -
>
> - Show quoted text -


A bad valve would be bbad all the time. Look at the earlier
suggesteds possibilities. I had a VW Golf with a blown valvew,
beleieve me it does not get better with speed.

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  #7 (permalink)  
Old 21 Feb 2007, 05:10 pm
Michael Pardee
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Default Re: blown cylinder?, or easier fix?

"Thom" <thomcasey@gmail.com> wrote in message
news:1172089232.034420.277330@q2g2000cwa.googlegro ups.com...
> On Feb 20, 6:26 pm, minique <n...@000.com> wrote:
>> "z" wrote:
>> >On Feb 20, 1:26 am, minique <n... RemoveThis @000.com> wrote:
>> >> i have a 91 accord with 230K..i recently pulled up to a toll
>> >booth,
>> >> and the car sounded like it was missing...a knowledgeable friend
>> >gave
>> >> it a spark test, and guessed that the car had blown a
>> >cylinder...i've
>> >> been running it locally, and it's been getting me
>> >around...it idles
>> >> very rough, but when i get it over 20mph, it seems to smoothe
>> >out and
>> >> runs fine...any thoughts on this problem...is it cylinder, or an
>> >> easier fix...thanx for any suggestions...

>>
>> >bad injector?

>>
>> hi...this is minique once again...will have compression test done
>> tomorrow...mechanic said it could be bad valve,worst case scenario,
>> which would require valve and gasket job, taking it over 500
>> possibly...he said it probably would not be worth it, due to high
>> mileage. a month down the road it could happen to another valve...u
>> never know....best case scenario, a bad rocker arm, which he could fix
>> for around 100....stay tuned for the climactic ending of this
>> saga...and thanx for the feedback
>>
>> --
>> Posted at author's request, usinghttp://www.AutoBoardz.cominterface
>> Articles individually verified to usenet standards. Visit URL to contact
>> author/report abuse
>> Thread
>> archive:http://www.AutoBoardz.com/blown-cyli...ct206871.html-
>> Hide quoted text -
>>
>> - Show quoted text -

>
> A bad valve would be bad all the time. Look at the earlier
> suggested possibilities. I had a VW Golf with a blown valve,
> believe me it does not get better with speed.
>


Good point - that would be unusual.


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  #8 (permalink)  
Old 22 Feb 2007, 02:25 am
Matt Ion
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Posts: n/a
Default Re: blown cylinder?, or easier fix?

Thom wrote:
> On Feb 20, 6:26 pm, minique <n...@000.com> wrote:
>
>>"z" wrote:
>>
>>>On Feb 20, 1:26 am, minique <n... RemoveThis @000.com> wrote:
>>>
>>>>i have a 91 accord with 230K..i recently pulled up to a toll
>>>
>>>booth,
>>>
>>>>and the car sounded like it was missing...a knowledgeable friend
>>>
>>>gave
>>>
>>>>it a spark test, and guessed that the car had blown a
>>>
>>>cylinder...i've
>>>
>>>>been running it locally, and it's been getting me
>>>
>>>around...it idles
>>>
>>>>very rough, but when i get it over 20mph, it seems to smoothe
>>>
>>>out and
>>>
>>>>runs fine...any thoughts on this problem...is it cylinder, or an
>>>>easier fix...thanx for any suggestions...

>>
>>>bad injector?

>>
>>hi...this is minique once again...will have compression test done
>>tomorrow...mechanic said it could be bad valve,worst case scenario,
>>which would require valve and gasket job, taking it over 500
>>possibly...he said it probably would not be worth it, due to high
>>mileage. a month down the road it could happen to another valve...u
>>never know....best case scenario, a bad rocker arm, which he could fix
>>for around 100....stay tuned for the climactic ending of this
>>saga...and thanx for the feedback
>>
>>--
>>Posted at author's request, usinghttp://www.AutoBoardz.cominterface
>>Articles individually verified to usenet standards. Visit URL to contact author/report abuse
>>Thread archive:http://www.AutoBoardz.com/blown-cyli...ct206871.html- Hide quoted text -
>>
>>- Show quoted text -

>
>
> A bad valve would be bbad all the time. Look at the earlier
> suggesteds possibilities. I had a VW Golf with a blown valvew,
> beleieve me it does not get better with speed.


Yeah, anything that would be considered a "blown cylinder" wouldn't clear up
with speed. I'll third the recommendation of a compression test and searching
for vacuum leaks.

Oh, and most importantly, get a second opinion from another mechanic - this one
sounds like he's looking for ways to uninstall your wallet.
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  #9 (permalink)  
Old 22 Feb 2007, 07:51 am
jim beam
Guest
 
Posts: n/a
Default Re: blown cylinder?, or easier fix?

Matt Ion wrote:
> Thom wrote:
>> On Feb 20, 6:26 pm, minique <n...@000.com> wrote:
>>
>>> "z" wrote:
>>>
>>>> On Feb 20, 1:26 am, minique <n... RemoveThis @000.com> wrote:
>>>>
>>>>> i have a 91 accord with 230K..i recently pulled up to a toll
>>>>
>>>> booth,
>>>>
>>>>> and the car sounded like it was missing...a knowledgeable friend
>>>>
>>>> gave
>>>>
>>>>> it a spark test, and guessed that the car had blown a
>>>>
>>>> cylinder...i've
>>>>
>>>>> been running it locally, and it's been getting me
>>>>
>>>> around...it idles
>>>>
>>>>> very rough, but when i get it over 20mph, it seems to smoothe
>>>>
>>>> out and
>>>>
>>>>> runs fine...any thoughts on this problem...is it cylinder, or an
>>>>> easier fix...thanx for any suggestions...
>>>
>>>> bad injector?
>>>
>>> hi...this is minique once again...will have compression test done
>>> tomorrow...mechanic said it could be bad valve,worst case scenario,
>>> which would require valve and gasket job, taking it over 500
>>> possibly...he said it probably would not be worth it, due to high
>>> mileage. a month down the road it could happen to another valve...u
>>> never know....best case scenario, a bad rocker arm, which he could fix
>>> for around 100....stay tuned for the climactic ending of this
>>> saga...and thanx for the feedback
>>>
>>> --
>>> Posted at author's request, usinghttp://www.AutoBoardz.cominterface
>>> Articles individually verified to usenet standards. Visit URL to
>>> contact author/report abuse
>>> Thread
>>> archive:http://www.AutoBoardz.com/blown-cyli...ct206871.html-
>>> Hide quoted text -
>>>
>>> - Show quoted text -

>>
>>
>> A bad valve would be bbad all the time. Look at the earlier
>> suggesteds possibilities. I had a VW Golf with a blown valvew,
>> beleieve me it does not get better with speed.

>
> Yeah, anything that would be considered a "blown cylinder" wouldn't
> clear up with speed. I'll third the recommendation of a compression
> test and searching for vacuum leaks.
>
> Oh, and most importantly, get a second opinion from another mechanic -
> this one sounds like he's looking for ways to uninstall your wallet.


burnt valves do "clear up with speed", or while the burn is still small
at any rate. but there's no sudden onset. i think the o.p. simply had
a plug unscrew itself - it's sudden, sounds dramatic, and because
there's no compression, the car still runs at speed without to much
drama, albeit with reduced power.
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  #10 (permalink)  
Old 22 Feb 2007, 05:37 pm
rick505
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Posts: n/a
Default Re: blown cylinder?, or easier fix?

the way u are describing it do a compretion test i just replaced a exaust
valve on my 90 honda accord 2.2 it was burnt it still ran on 3cyl. at a
idle it ran bad it shook the car it would still go on the highway up to
speed and it ran ok but as soon as it idled it ran bad if i remember
wright the valve cost $18 and the gasket kit cost $130 and i did the work
my self what a pain in the butt it was. if they want to charge u more than
$350 to fix your cylinder head get a rebuilt one at advanced auto $361.99


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