1993 Geo Tracker leaking water from upper middle of engine. Do you think it might be a head gasket?

O-ring where? The drain plug? Distributor shaft? Or do you mean oil seal?
Geo oil drain plug specifies a compressible copper ring washer I think? Need to clean the surfaces well, and torque to spec. My own plug's seal is not perfect, but only a drop here and there usually. Autozone or NAPA can supply you a new plug and washer if needed.

old post (WHICH TRANSIMISSION? AND 2WD OR 4WD?)
its not bad, seen many replace mains for no gain,, vast....
on many forums.whe do that.(if a/t is oil ATF)
and were wrong every time.
the reaR VALVE COVER GASKET LEAKS, skipping 60k mile service is Reasn.
THE 2 DISTRIBUTOR O-RINGS LEAK , ALL DO THIS ,this OLD
a FACT
AND This oil then runs down back top of BELL
the finds the magic secret, suzuki bell vent (gravity is a beach)
and then runs into said vent and fools all owners that rear seal leaks(even me.... )

see this.
http://www.fixkick.com/engine/97-motor-pull/HTML/image_5.html

all that oil ,is VC gasket and distib 0-rings bad.
every drop..
this be first.
ask how to fix both , have links to all pages

Square plate on rear of head with rubber hose attached in middle ck hose and for best results replace gasket on plate.

old post.
be hose leak , why not just look on a hot engine, parked.
it tells you clear as day what leaks, look !
or water pump
or rad leak
if lucky
if unlucky, head gasket or cracked block or head.

which seal. ? rear of WHAT?
2wd, 4wd?
3sp,4speed or 5sp. tranny.?
my wild guess, is the rear transfer case leaks, and if yes, where.?
it can leak in 3 places. (ive rebuilt them and the boxes)

or the rear engine seal.

so the rear seal can be, in 3 places.
if you work on 4wd, it really can be 5 places.
6 counting rear of front axle.
that is because the exit paths are shared on many.

first tell me what you are driving like this.
97 geo 2dr, 5sp 4wd. like that, then we can answer in fine detail.

http://www.fixkick.com/

head gasket seal

From weher is woter leak? It maybe water pump to faulty!
Is the oil braun - black or white?

1 disconnect battery ground cable
2 drain cooling system
3 on models with a/c, proceed as follows:

a discharge a/c system
b loosen upper and lower compressor bolts and remove compressor drive belt
c remove a/c line from top of radiator shroud

4 remove water pump drive belt
5 remove reservoir tank from radiator bracket
6 remove radiator shroud and fan/clutch from vehicle
7 remove waterpump pulley from waterpump
8 remove timing tensioner and timing belt
9 remove dipstick tube
10 remove alternator mounting bracket at water pump
11 remove water pump mounting bolts and water pump
12 reverse procedure to install, using new gasket and rubber seal

Aerosmith, this sounds like a "blown" head gasket scenario. Does the vehicle idle roughly and if so it could be a compression factor where a blown head gasket is present. Have a look at the oil dipstick - is the oil level correct? - there could be signs of water leaking into the oil system, thus meaning the head gasket is at fault. Overheating - chances are there is damage to the cylinder head - addressed to an engineering shop for skimming & pressure testing.

Good luck

check your oil for water, if it has water in the oil you could have possible have just blown a gasket on the head or the intake. Dawnville Auto Salvage has the head probaly save you alot of money 706-226-8668. Troy. If the towing hitch is right jack the frontend up and the hitch will hook to the bumper and the frontend will be off the ground. good luck