compression problems..what do you think

moponys · 01-03-2003, 11:41 AM

If your mustang is leaking about a quarter size drop of oil every couple days, could that be a sign of compression problems, blown head gasket or just a oil pan gasket leak???

Thanks...

PKRWUD · 01-03-2003, 11:51 AM

It's not a head gasket or a compression problem, but it's not necessarily an oil pan gasket, either. You need to get under there and look around. If it's really bad, wash it off at the car wash, and check the next day for a fresh leak.

Places to check:
valve cover gaskets
front and rear intake gaskets
front and rear main seals
oil pan
oil filter
oil pressure sending unit
PCV valve.

Take care,
~Chris

moponys · 01-03-2003, 11:59 AM

Do you think I should have more RWHP with my mods?

I'm gonna get a compression test done pretty soon to tell me if anything is wrong.

Thank you,

Tony

jonnyk · 01-03-2003, 12:15 PM

Quote:

Originally posted by moponys
Do you think I should have more RWHP with my mods?

I'm gonna get a compression test done pretty soon to tell me if anything is wrong.

Thank you,

Tony

Yes, but a lot of factors play in. What is your fuel pressure set at? What about initial timing? Keep in mind you have a crappy SN95 computer that does weird things too...and the AOD-E's aren't the world's most efficient transmission.
If you suspect compression, have a compression test done.

PKRWUD · 01-03-2003, 12:21 PM

I agree w/ jonnyk, but even then, your numbers are very low for what you have. I'd get someone to look at it for you.

moponys · 01-03-2003, 12:35 PM

I agree with both of you...

My fuel pressure is set to 38psi and timing is at 10*.

All of the timing advance was done on the chip by the Mustang Ranch.

I figure I should have at the least 30 more horses in the combo.

I'm gonna do the compression test as soon as I can.

Thanks again,

Tony

NotchJohnson · 01-03-2003, 01:25 PM

Lets see, your car came stock with 215hp, and 285 ft/lbs torque.

Your mods have managed to give you a mere 20hp, but rob you of 25ft/lbs of torque?

Something is definitely wrong man, I would say even seeing 30 more hp with all your mods is an understatment.

moponys · 01-03-2003, 01:34 PM

I'm hoping you're right and 30 more hp is an understatement but the 215hp stock isn't at the rear wheels. 215 is at the engine. I think stock rwhp was somewhere between 180 and 190.

So I actually gained about 50hp at the wheels and probably about 80hp at the engine, I think???

01-03-2003, 11:41 AM	#1
moponys Registered Member Join Date: May 2001 Location: Antioch, CA 94521 Posts: 181	compression problems..what do you think If your mustang is leaking about a quarter size drop of oil every couple days, could that be a sign of compression problems, blown head gasket or just a oil pan gasket leak??? Thanks... __________________ N/A 94 GT vert w/aode...12.19 @110 w1.67 60' Some bolt ons

01-03-2003, 11:51 AM	#2
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	It's not a head gasket or a compression problem, but it's not necessarily an oil pan gasket, either. You need to get under there and look around. If it's really bad, wash it off at the car wash, and check the next day for a fresh leak. Places to check: valve cover gaskets front and rear intake gaskets front and rear main seals oil pan oil filter oil pressure sending unit PCV valve. Take care, ~Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

01-03-2003, 11:59 AM	#3
moponys Registered Member Join Date: May 2001 Location: Antioch, CA 94521 Posts: 181	Do you think I should have more RWHP with my mods? I'm gonna get a compression test done pretty soon to tell me if anything is wrong. Thank you, Tony __________________ N/A 94 GT vert w/aode...12.19 @110 w1.67 60' Some bolt ons

01-03-2003, 12:21 PM	#5
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	I agree w/ jonnyk, but even then, your numbers are very low for what you have. I'd get someone to look at it for you. __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

01-03-2003, 12:35 PM	#6
moponys Registered Member Join Date: May 2001 Location: Antioch, CA 94521 Posts: 181	I agree with both of you... My fuel pressure is set to 38psi and timing is at 10*. All of the timing advance was done on the chip by the Mustang Ranch. I figure I should have at the least 30 more horses in the combo. I'm gonna do the compression test as soon as I can. Thanks again, Tony __________________ N/A 94 GT vert w/aode...12.19 @110 w1.67 60' Some bolt ons

01-03-2003, 01:25 PM	#7
NotchJohnson Registered Member Join Date: Oct 2001 Location: Florida Keys Posts: 593	Lets see, your car came stock with 215hp, and 285 ft/lbs torque. Your mods have managed to give you a mere 20hp, but rob you of 25ft/lbs of torque? Something is definitely wrong man, I would say even seeing 30 more hp with all your mods is an understatment. __________________ 89 notch-finally not stock!! ported gt40's, ported cobra intake, 65mm tb, 75mm maf, mac cai, lt's,prochamber, fms 1.6 rr, 125 shot.

01-03-2003, 01:34 PM	#8
moponys Registered Member Join Date: May 2001 Location: Antioch, CA 94521 Posts: 181	I'm hoping you're right and 30 more hp is an understatement but the 215hp stock isn't at the rear wheels. 215 is at the engine. I think stock rwhp was somewhere between 180 and 190. So I actually gained about 50hp at the wheels and probably about 80hp at the engine, I think??? __________________ N/A 94 GT vert w/aode...12.19 @110 w1.67 60' Some bolt ons

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