Jason Johnson wrote:
> Jason Johnson wrote:
> > Jason Johnson wrote:
> > >
> > > i may be buying a 1991 accord that has 274,049 miles on it. the
> timing belt
> > > and water pump have already been replaced probably for the 2nd time
> in its
> > > life about 40,000 miles ago. the auto trans shifts ok. is there
> anything to
> > > be extra concerned about with a car with that high of miles on
> > > wise. the body is better than some with lower miles that old.
> > >
> > > -jeff
> > >
> > > You may want to have it checked by a mechanic. A compression
> > > be done. Many engines that have 274,049 miles have what I refer
to as "bad
> > > rings" and that's an expensive problem to fix.
> > come on guy, how much honda mechanical experience do you have? be
> > honest. you can have /very/ high mileage hondas that are almost
> > perfect. similarly, you can have near new ones that are duds. chances
> > are, if the vehicle's got this far, it's ok. it's all about
> > maintenance standards. nothing else matters. and compression testing
> > is pretty much a waste of time unless you've got some academic interest.
> > minor variance means nothing. substantial variance you can usually
> > hear on cold cranking. low compression is apparent from excessive
> > blow-by, and even then, if the car's cheap and only going to be run for
> > a year or so, so what? it'll still work, and keep on working for a
> > /long/ time.
> > > You may also want to run a carfax report on it--don't buy it if it has
> > > ever been involved in a accidents. Bent frames are VERY expensive
> > again, on a car this vintage, wtf does a carfax mean? if it had a
> > reported repair year one, but has lasted the subsequent 14 years ok,
> > then what? is it a lemon because it was repaired, even if the repair
> > was factory standard? how does carfax help you differentiate between a
> > good repair and a bad one??? carfax is utterly irrelevant at this stage
> > - it's only possible value is on a nearly new car to see if it's a
> > re-build or not, and even then, only as a price factor.
> > > You might have someone else start the car while you watch the exhaust
> > > pipe. If black smoke comes out--don't buy it.
> > if the cat's cold, maybe. but if you're looking for oil consumption,
> > oil gives blue smoke, not black. black is excess fuel, and that could
> > be normal operation. catalysts mask a multitude of sins.
> > > Mechanics can easily determine if an engine has a cracked head
> > > gasket--therefore, have the mechanic check that--that's also very
> > > expensive to repair.
> > that's stating the obvious - advice on diagnosis would be much more
> > >
> > > try carfax.com or google Car Fax or carfax
> > don't waste the money.
> > Jim,
> > I usually agree with your posts and I have also learned a lot from the
> > posts of other real mechanics that post in this newsgroup. I am nothing
> > more than a back yard mechanic. However, I disagree with you related to
> > this car. Bad rings are a serious issue related to cars that have 274,049
> > miles on them. We have both followed old cars down the freeway or
> > interstate and seen black or blue smoke smoke coming out of the exhaust
> > pipes. You don't see black smoke or blue smoke coming out of the exhaust
> > pipes of most newer vehicles. I would not advise anyone (unless they were
> > a mechanic) to buy a car that has bad rings. The best way of discovering
> > bad rings is by conducting a compression check. Do you know of a better
> > way of checking the rings other than a compression check? I would not buy
> > a car if black smoke or blue smoke came out of the exhaust pipe. An engine
> > that is working normally should have almost no smoke coming out of the
> > exhaust pipe. I was referring to excessive amounts of smoke in my post--I
> > should have been more clear on that point. The reason that I mentioned the
> > carfax report was to help the poster avoid buying a car that had been
> > involved in an accident. As you know, a bent frame is a major problem.
> > jason
> 1. while high mileage can mean worn rings, worn rings do not mean high
> mileage - mileage alone is not an indication of ring condition. and
> cracked rings are another story entirely independent of mileage.
> Cars that have 274,049 miles on them are more likely to have bad rings
> than a car that has less than 100,000 miles on them. It's for that
> reason a compression check should be done to determine if the car
> does have signs of bad rings.
jason, with respect, a compression test doesn't tell you much unless
you're already trying to diagnose a problem. it doesn't necessarily
tell you if you have a cracked ring and it doesn't necessarily tell you
if low compression is rings or a valve. [a wet test does, but let's get
real here - you're inspecting a 91 accord. do you want to pay for hours
of testing when an experienced mechanic can tell you if the engine's ok
in about 30 seconds? - blow-by with the engine running is what you
really want to know, and that's literally a 30 second test.]
> 2. there are several reasons for blue smoke - rings is only one. black
> smoke is something entirely different again and /nothing/ to do with
> rings. and you /do/ see smoke on newer vehicles if there's something
> wrong with them - just like older vehicles.
> That is true. However excess levels of blue smoke or black smoke
> indicate there is something wrong with the engine which would be a reason
> for not buying that used car. I would not buy a car that had excess amounts
> of blue smoke or black smoke coming out of the exhaust. Yes, I agree some
> newer cars that have something wrong with them do have blue or black smoke
> coming out of the exhaust pipes--I also would not buy one of those cars.
> 3. a carfax report doesn't tell you if the frame is bent. period. on a
> car this age, it's an utter waste of money.
> Yes, that is true. However, if a carfax report indicated that a car was
> involved in an accident--it could mean that the frame was bent. If the
> carfax report indicated that the car had NEVER been involved in an
> accident, that would mean that it's unlikely that the car has a bent
that is utterly incorrect. absence of carfax record simply means no
/reported/ damage - and possibly the worst kind of backyard repair.
inspection is the /only/ definitive method of determining frame health.
> Without a carfax report, you don't know--you are taking a gamble
> related to a bent frame.
you're "taking a gamble" if you don't get a physical inspection from an
experienced mechanic. call aaa to have them look at the vehicle if you
don't know what you're doing. that's much better use of the money you'd
otherwise spend on carfax.
> you have yet to make a single posting here of any value. even something
> like "get aaa to do an inspection" would be more helpful that bleating
> about a bunch of stuff you don't know about but irrationally fear or
> worse, spending money on something you don't need and that won't help.
> I rarely post in this newsgroup but enjoy visiting this newsgroup since I
> learn a lot from the mechanics.
enjoy away, but why do you give mechanical advice if you're not a
mechanic? that's what i don't understand with your posts jason.
Good point. I will probably not post in this newsgroup even if I know the
answers. Most of my mechanical experience was on cars made prior to 1980
so I know very little about the electrical systems used in newer cars.
I guess that you only want regular subscribers that are mechanics or
people that are requesting help. It's kind of like when I worked in a hospital
lab. The doctors would only spend time with other doctors and not make
friends with anyone that was not a doctor. They only talked to us if it
was related to
a case. I guess that mechanics are the same type of people as the doctors.