compression

88stangmangt

Active Member

Nov 25, 2003

2,332

1

48

Stafford,VA

Feb 15, 2004

#1

• Feb 15, 2004

• #1

i have a 88gt with less than 70k on it i recently did a compression test on it to see if i was gonna re-build it but i dont think i did it right it cam out more than 10%(i think next i will do a leak down). is it common for rings to go bad in only 69k in our 5.0's???????????????????? i am just gonna put it back together slap a vortech on it and hope for the best. it has been since fall that i have driven it and cant stand it no more!!!!!!!!!!!!!!!!!!! i havnt heard my flows in about 3 months!!!!!!!!!!!!!!!!!! im dieing.

 

88stangmangt

Active Member

Nov 25, 2003

2,332

1

48

Stafford,VA

Feb 15, 2004

#2

• Feb 15, 2004

• #2

^^^^^^^^^^^^^NUMBER 302!!!!!!!!!!!!!!!!!!!!!! hell ya!!!!!!!!!!

 

90mustangGT

I felt sorry for girls because

Founding Member

Jan 15, 2002

2,773

17

89

Dallas, GA

Feb 15, 2004

#3

• Feb 15, 2004

• #3

Cam out? The valvetrain needs to be working for a proper compression check. How is air going to get in there and get compressed w/o the cam in the engine.

 

88stangmangt

Active Member

Nov 25, 2003

2,332

1

48

Stafford,VA

Feb 15, 2004

#4

• Feb 15, 2004

• #4

no it is all still in and together long tubes/throttle body/wires and all that crap are off but everything is still on. And it runs strong!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! so i think i will try my luck.

 

fly4spd

New Member

Jan 20, 2004

118

0

0

Las Vegas & Reno

Feb 15, 2004

#5

• Feb 15, 2004

• #5

when he said "cam out", he meant "came out", it looks like

 

T

TheUser

Active Member

Jul 25, 2003

1,859

1

36

Springfield, MO

Feb 15, 2004

#6

• Feb 15, 2004

• #6

I won't say it's the best idea, but i'm doing the same thing lol so...except I got one cyclinder pushing like 40 psi and the rest are 125-150

 

J

jerry beach

Founding Member

May 20, 2002

2,671

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46

Ocala,FL

Feb 15, 2004

#7

• Feb 15, 2004

• #7

TheUser said:

I won't say it's the best idea, but i'm doing the same thing lol so...except I got one cyclinder pushing like 40 psi and the rest are 125-150

Click to expand...

That is not a good plan, think about it.

 

88stangmangt

Active Member

Nov 25, 2003

2,332

1

48

Stafford,VA

Feb 15, 2004

#8

• Feb 15, 2004

• #8

well i know this if there is pepole out there with almost 200k on there block and run great compression and then mine with 69k im gonna be pist!!!!!!!!!!!!!!!!!!!! if i have to re-build

 

90mustangGT

I felt sorry for girls because

Founding Member

Jan 15, 2002

2,773

17

89

Dallas, GA

Feb 15, 2004

#9

• Feb 15, 2004

• #9

70psi is nessasary for combustion. Yes fuel will burn with less, but to actually combust, it needs that kind of pressure. TheUser: Check that cylinder again, if it still gives you below 70psi, try adding a little oil to the combustion chamber, if it does nothing, you probally have a valve train or head problem, if it rises, you have bad rings most likley.