Honda Car Forum

My daughter's 95 Honda Civic (150K miles) started idling rough on the
last 30 miles from a trip to Boston. I informed her to drive home
since she stated at higher revs it appeared OK. To make a long story
short, it was taken to a Honda dealer and diagnosed as having no
compression in #2 and that it may be a stuck valve -- estimate to
repair worst case was $939. The car uses about 1 quart of oil per 1000
miles with no leaks near oil pan, so maybe was burning oil (even though
not noticable). My daughter wants to sell the car vs spending over 1/3
what the car is worth (sine she can get along without a car in Boston)
-- all maintenance has been performed on schedule and otherwise the
vehicle is in decent shape.

I informed her that she may only be able to get less than $500 for
vehicle. Since the decision was to sell, I thought to try to unstick
the valve (dealer's guess without further diagnosis) using Gunk's Motor
Flush -- following the directions using twice for high milage vehicles
and then follow that up with a treatment of Marvel Mystery Oil in the
crankcase if the first method does not work. If both do not work, then
the buyer will have a very clean engine that needs some work. Is this
worth a try?

Opinions?

Rick

RickBell wrote:
> My daughter's 95 Honda Civic (150K miles) started idling rough on the
> last 30 miles from a trip to Boston. I informed her to drive home
> since she stated at higher revs it appeared OK. To make a long story
> short, it was taken to a Honda dealer and diagnosed as having no
> compression in #2 and that it may be a stuck valve -- estimate to
> repair worst case was $939. The car uses about 1 quart of oil per 1000
> miles with no leaks near oil pan, so maybe was burning oil (even though
> not noticable). My daughter wants to sell the car vs spending over 1/3
> what the car is worth (sine she can get along without a car in Boston)
> -- all maintenance has been performed on schedule and otherwise the
> vehicle is in decent shape.
>
> I informed her that she may only be able to get less than $500 for
> vehicle. Since the decision was to sell, I thought to try to unstick
> the valve (dealer's guess without further diagnosis) using Gunk's Motor
> Flush -- following the directions using twice for high milage vehicles
> and then follow that up with a treatment of Marvel Mystery Oil in the
> crankcase if the first method does not work. If both do not work, then
> the buyer will have a very clean engine that needs some work. Is this
> worth a try?
>
> Opinions?
>
> Rick
>

they did a diagnostic but weren't able to tell if it was stuck or not???
run away from that dealer my friend - they don't know what they're doing.

regarding the gunk question, it won't work. valves essentially run dry,
so monkeying with the lube will not touch it. not mentioning the damage
it may have on the rest of the system.

getting back to the diagnostic, if the valve is stuck [most unlikely],
it's easy enough to diagnose by taking the rocker cover off and checking
the valve lash. if it's stuck down, you'll have massive lash on the
offending valve. if it's stuck closed, the cam or the rocker arm will
be broken!

the most likely scenario from your description is that the valve is
burnt. this happens if the lash is too tight because it's not been
adjusted properly [i.e. neglected]. the part is $15-25 depending on
whether it's inlet or exhaust. a full oem head gasket kit is $150.

it's a moderately advanced job but very do-able with a reasonable tool
kit, and the helm manual. otherwise, find another dealer that knows
what they're doing. or better yet, find an independent honda specialist
and call around for quotes.

Jim

Apparently, the valve cover was not taken off after the compression
check and the valve lash inspected as you stated to pinpoint the issue
-- maybe they were trying to save my daughter on labor.

Service Order reads as follows:
o Customer states that vehicle is idling rough. States that second
plug is not firing but there is spark present. Check and advise
o Completed compression test -- zero compression from cylinder 2 --
engine is burning oil. Recommend replacing valves in no 2 cylinder and
reseat other valves if necessary (possibly intake and exhaust valves --
won't know until technician is in there). Have to special order parts.

The Honda Master Tech mentioned that the car may use more oil after the
repair. Also, I asked his opinion it it is worth fixing the vehicle if
it were his daughter's car and he said it probably would be best to say
goodbye since the vechicle has over 150K miles. The repair estimate
was $939 worst case.

Rick

RickBell wrote:
> Jim
>
> Apparently, the valve cover was not taken off after the compression
> check and the valve lash inspected as you stated to pinpoint the issue
> -- maybe they were trying to save my daughter on labor.
>
> Service Order reads as follows:
> o Customer states that vehicle is idling rough. States that second
> plug is not firing but there is spark present. Check and advise
> o Completed compression test -- zero compression from cylinder 2 --
> engine is burning oil. Recommend replacing valves in no 2 cylinder and
> reseat other valves if necessary (possibly intake and exhaust valves --
> won't know until technician is in there). Have to special order parts.
>
> The Honda Master Tech mentioned that the car may use more oil after the
> repair. Also, I asked his opinion it it is worth fixing the vehicle if
> it were his daughter's car and he said it probably would be best to say
> goodbye since the vechicle has over 150K miles. The repair estimate
> was $939 worst case.
>
> Rick
>

valves almost never stick, but if it's suspected, it's 15 minutes to
takes the rocker cover off and check the lash. the compression test is
valid. the assumption that it's a stuck valve without pulling the cover
is not - which means this shop is highly suspect and should be avoided.

regarding viability of repair, only you know whether the car's worth it
and imo, that's determined by the condition of the body. without seeing
it i can only comment on the mechanicals, and as stated previously, it's
not that big a deal and the parts are cheap. civics regularly give
300+k miles if reasonably maintained. valves have no effect on oil
consumption. poor repair standards [contamination & dirt] do. you do
the math. if this is an otherwise reliable car in decent condition,
there's no reason it won't stay on the road for a decade after being
repaired. find a decent repair shop that knows what they're doing and
it'll run till the body rots out. if you've already made up your mind,
don't bother wasting any more [of my] time - just sell it. if the
body's good, i'd be delighted to pick it up for only $500.

Jim

In all fairness to the Honda dealer, I may have jumped to the
conclusion that the valve was stuck -- the dealer stated no compression
and recommended replacing the values for cylinder #2. What is you
estimate in parts and labor (in hours) to the one set of valves? Also,
do you think that there may be additional damage since the car was
driven with the cylinder #2 condition (burnt valve?) for over 50 miles?

The vehicle had a full 30K service (including valve adjustment) at
146K, good brakes/tires, and my daughter and I performed body work
(paint color off a little) around the wheel wells (where Honda's
usually rust) this past summer. You've got me thinking and thanks so
much for you help! And forgot to say Happy New Year!

Rick

RickBell wrote:
> Jim
>
> In all fairness to the Honda dealer, I may have jumped to the
> conclusion that the valve was stuck -- the dealer stated no compression
> and recommended replacing the values for cylinder #2. What is you
> estimate in parts and labor (in hours) to the one set of valves?

i don't know what the honda specified time is, but it'll be considerably
more than a belt job for which 4 hours are charged, even if it's done in
under 2. imo, that's another reason to go to an independent. someone
that knows their business should be able to do it in 4 or less, but
double up to be safe.

> Also,
> do you think that there may be additional damage since the car was
> driven with the cylinder #2 condition (burnt valve?) for over 50 miles?

zero mechanical. you can drive an engine in that condition for many
10's of thousands of miles. you do however have [smallish] risk to the
catalyst, so it's best to take care of it sooner rather than later.
it's not a major deal because as you've already stated, it still works
reasonably well at higher rpm's and combustion is still ok - it's
incomplete combustion that is a catalyst problem, and that is worse if
you're pottering about town.

>
> The vehicle had a full 30K service (including valve adjustment) at
> 146K, good brakes/tires, and my daughter and I performed body work
> (paint color off a little) around the wheel wells (where Honda's
> usually rust) this past summer. You've got me thinking and thanks so
> much for you help! And forgot to say Happy New Year!
>
> Rick
>

Jim

I will get some estimates. If my daughter still insists on selling
after obtaining the estimates and you are still interested in this
vehicle, is it appropriate for me (new to newsgroup) to contact you via
this newsgroup? [Note: Vehicle did skip even a higher revs on ride back
from dealer to home.] Thanks again!

Rick

On 1 Jan 2006 09:09:14 -0800, "RickBell" <RickBell100@gmail.com>
wrote:

>My daughter's 95 Honda Civic (150K miles) started idling rough on the
>last 30 miles from a trip to Boston. I informed her to drive home
>since she stated at higher revs it appeared OK. To make a long story
>short, it was taken to a Honda dealer and diagnosed as having no
>compression in #2 and that it may be a stuck valve

I agree with what everybody else has said. However, I would just yank
the whole cylinder head off and replace it with a rebuilt one. A
rebuilt head for a 95 Civic should be around 300 to 500 US dollars.
After replacing the head, the car would probably go another 150k.
Removing the head will require remving other parts, such as the timing
belt, that probably need to be replaced anyway. This whole project
should end up costing about what was quoted to you, since labor should
run around 500 US dollars

As others have said, only you can decide if it is worth it. If I had a
burned or cracked valve on my 93 Accord, I would do as I have
suggested, but I would do the work myself. It is a complex job,
because you have to remove the throttle body, both manifolds, somehow
swing all of that plumbing out of the way, etc. But once you get to
the head itself, it is a fairly simple and straightforward process to
remove and replace.

Hope this helps.



Elliot Richmond
Freelance Science Writer and Editor

If you do have a burnt valve, and if you had the valves adjusted 4000
miles ago - I would be highly suspicious that the 'adjuster' is the
cause of your current problem. Things to look for - is the lock nut on
the malfunctioning number two cylinder valve tight? Check the
adjustment on several other valves - are they on spec? If they were
done 4000 miles ago they should be exactly on spec.

While looking at the valves - check that the cam lobe on that valve is
not worn and that the rocker arm is not worn. In my experience i have
seen more bad rocker arms than burnt valves.



RickBell wrote:
> Jim
>
> In all fairness to the Honda dealer, I may have jumped to the
> conclusion that the valve was stuck -- the dealer stated no compression
> and recommended replacing the values for cylinder #2. What is you
> estimate in parts and labor (in hours) to the one set of valves? Also,
> do you think that there may be additional damage since the car was
> driven with the cylinder #2 condition (burnt valve?) for over 50 miles?
>
> The vehicle had a full 30K service (including valve adjustment) at
> 146K, good brakes/tires, and my daughter and I performed body work
> (paint color off a little) around the wheel wells (where Honda's
> usually rust) this past summer. You've got me thinking and thanks so
> much for you help! And forgot to say Happy New Year!
>
> Rick
>

How would one approach the Honda Dealer that they may have been the
root cause of the current problem? Should I suggest that I pay for the
checking of the valve settings IF they are in spec, and they correct
the current problem if they are indeed out of spec in less than 5K
miles -- not sure if they guarantee how long these to be in spec
(service for this is usually 12K miles if I remember correctly)? Does
the fact that the vehicle burns oil (1 quart every 1K miles) factor
into the failure at all?

Also, if the cam lobs or rocker arm were worn, then wouldn't the Honda
Dealer reported this at the 30K service (which was performed on 7/21/05
at 146K miles) and suggest additional service at that time?

Suggestions appreciated.

Rick