Motor Oil leaks from 1999 Honda Civic EX

The origin of the leak may be oil spilled form the Valve cover gasket job. With a warm, not hot engine, spray with degreaser and hose off the oil and cleaner. Leave to dry. Run car for a couple of days and check again.

Yes replacing the gasket should fix it as long as it isn't warped. Civics tend to get thrashed by young drivers, so you may need to get the head skimmed at a machine shop.

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Hi Jason , no vin told
no engine told of vast world wide.
no country told. PCV goes to top of valve cover on most engines
to suck the fumes off of there and burn them. a SMOG device.
our USA 96 has
a rubber grommet there and a PCV stuffed in there.
tell what engine is there.
and country if smart.


it loves to clog and make engine leak oil and engine burns oil;
replace it is best every 50k miles,
it is only a check valve.inside, simple as can be but clogs.

In the USA all cars here changed radially for 1996 year
manufactured after july1, 1995 for 96 marketed year.
OBD2 day we call that, even engine options before NOW GONE.

the camshaft seal is leaking, it is a round seal that is on the outside of the motor under the valve cover.

Try the valve cover gasket or the cam seal.

we need engine displace ment or exact honda type. ID
to answer fully.,
my guess, is the engine leaks oil and you have tried fix it
odd, you did the hard ones first. why not the valve cover
did you know there are 2 ways to find leaks.
1: clean it , all off, then run it and look. see live leak.
best is to do that with out driving as the wind blows it about.
find it , now you know what leaking.
2: use the UV dye kit.
quote wiki, but WHAT ENGINE ?????????????????
all base models were made with 1.6L engines. The EX-CX are all SOHC (Honda D engine). The CX, DX, and LX all have D16y7 non-VTEC engines; whereas the EX has a D16y8 VTEC, and the HX has D16y5 VTEC-E. The USDM Si and Canadian SiR came with a DOHC (B16A2 VTEC).

first tell engine, ! DOHC is quite different.

what engine.? lots of engines, used. and 21 models of civic, USA.
its usually.
1: valve cover, (yes, most can leak from top down behind the belt.
2: cam seals
3: crank end seal
4: oil pump seals.
6: oil pan ( last choice)

finding oil leaks takes hard work , clean, it find it .
or use the dye kits.

gravity and wind, allows it to go where ever IT wants.
so it must be clean first to find it.. see?
or use the dye kits, it shows a live leak best.

ever look here?
http://estore.honda.com/honda/parts/view-honda-parts-catalog-detail.asp?m=1997-civic-2-dx-4at&sn=&b=E++09&dl=

question, at the 60k mile service points. you check lash, settings.
with a new timing belt. and at such point, a new valve cover gasket gets fitted, did you? if yes, its not leaking if not>????
the front edge of the VC gasket, leaks down behind what i call
the VC leak hidder, tin pan. plate. behind the cam cog
is a plate, and the VC leaks down from there to the cam seal
then down front of engine, then past crank seal the, to cover.
seen this on all most all OHC engines...
cause, nobody does the 60k or does it and uses the old gaskets.
id look there first. but id dont have service history.
start high work down due to gravity.....
the FSM is here.
see that too. "free" too
http://hondatech.info/downloads/Auto/Manuals/Civic/

First have ur engine DEGREASE and pressure wash to check where could be the leak coming from, u could just go to ur garage service or anyone has a HiGH PREASSURE washer just to dislodge the oil from ur engine!
U have to check the FRONT CRANKSHAFT OiL SEAL, valve cover gasket, and the (ignition)distributor oil seal(this is the area usually where oil coming out from Honda cars)

Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

your the only one that can answer where, check the oil filter and the oil light switch first.

Donut gasket. You need 2 of them.