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Old 28 Jun 2004, 06:09 pm
Joe Guarino
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Default 91 Accord Oil Leak

On my 91 Accord, I have an oil leak on the left-hand side of the engine,
just below the ignition wires. I am trying to seal up all the
leaks.....replaced oil pan gasket and valve cover gasket. I cannot figure
out what is leaking on this side of the engine.....is the oil pressure
sender switch on that side of the engine? Any help is appreciated. Joe


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Old 28 Jun 2004, 07:29 pm
John
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Default Re: 91 Accord Oil Leak

The sender is on the "back" of the engine under the intake. If you consider
the front of the engine as where the belts are, then yes, it is on the left
side.

--
John



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Old 28 Jun 2004, 09:03 pm
Caroline
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Default Re: 91 Accord Oil Leak

Any signs of leakage around the valve cover screws? Did you replace the valve
cover screw grommets, too?

I discovered the grommets were the source of some seepage I was having on my
1991 Civic. They were the originals, 153k miles old.

Also, make sure you

-- torque down evenly on the valve cover. Use a torque wrench if at all
possible. Valve cover nut torque specs from Autozone's 1991 Accord Repair
Guides:

V-6 1991 Accord: 11 ft-lbs.
All other 1991 Accords: 7 ft-lbs. (same as my 1991 Honda Civic's)

-- possibly put a bit of Ultra Grey silicone at the same joints on the valve
cover as those shown for the oil pan gasket.

Make sure the car's PCV valve is operating correctly. I'd take it off and
inspect it. If it's clogged, this could be overpressurizing the crankcase. This
in turn may cause seals to leak oil.

See the following for a drawing of where the oil pressue switch is on your 1991
Accord. The switch fits where the gage is installed in the left drawing on the
last page of this PDF.

http://www.honda.co.uk/owner/AccordManual/400/5-5.pdf

www.autozone.com has great step-by-step instructions for 1995 and earlier Honda
models, should you want to investigate other things.


"Joe Guarino" <joeguarino@comcast.net> wrote
> On my 91 Accord, I have an oil leak on the left-hand side of the engine,
> just below the ignition wires. I am trying to seal up all the
> leaks.....replaced oil pan gasket and valve cover gasket. I cannot figure
> out what is leaking on this side of the engine.....is the oil pressure
> sender switch on that side of the engine? Any help is appreciated. Joe



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