Can anyone analyze my compression test?

S

SilverBullet00

New Member

Jul 5, 2004

1,150

0

0

Wichita, KS

Nov 2, 2005

#1

• Nov 2, 2005

• #1

Ok, After having a couple engine problems (like getting oil in my spark plug wells) I have finally done a compression test. Can anyone interpert my findings? Here are the results:
=Passanger side (no oil on spark plugs)=
front
160
175
170
180
back


=Driver Side (oil on spark plugs)=
front
137
169
145
160
back

help? lol

 

M

MatthewP

Founding Member

Dec 7, 2001

355

0

0

Calgary, Alberta

Nov 3, 2005

#2

• Nov 3, 2005

• #2

#5 and #7 are too low assuming that the compression test was done the same way for each cylinder. Tests should be within about 10% of each other.

Try a leakdown test on those cylinders to check for busted ring lands or a blown head gasket.

You MIGHT be ok, but those numbers look pretty suspicious to me.

-Matthew

 

S

speedytang

Founding Member

Jul 28, 1999

765

1

17

Marengo,Ohio,US

Nov 3, 2005

#3

• Nov 3, 2005

• #3

That is rings or the cam followers not allowing the valves to close. If it was a headgasket usually a really low reading or really high from two cylinders compressing together.

 

VTEngine

Founding Member

Nov 4, 2002

364

0

0

Lansing, MI

Nov 3, 2005

#4

• Nov 3, 2005

• #4

The low cylinders show worn or damaged rings. It's not horrible #'s (trust me, I've seen much worse), but will impede on the power the engine makes. How many miles on the engine? Is it the stock one or is it a fresh new engine?

 

S

SilverBullet00

New Member

Jul 5, 2004

1,150

0

0

Wichita, KS

Nov 4, 2005

#5

• Nov 4, 2005

• #5

VTEngine said:

The low cylinders show worn or damaged rings. It's not horrible #'s (trust me, I've seen much worse), but will impede on the power the engine makes. How many miles on the engine? Is it the stock one or is it a fresh new engine?

Click to expand...

its got 62,000 miles on it. I am the 3rd owner of the car so the first two could have beat the crap out of it...? I dont know, I take pretty good care of it so im not sure what could have caused the problem.. What would you recommend me doing?

 

DropTopPony

Noob Slayer

Founding Member

Aug 13, 2002

2,570

3

48

south jersey

Nov 5, 2005

#6

• Nov 5, 2005

• #6

SilverBullet00 said:

its got 62,000 miles on it. I am the 3rd owner of the car so the first two could have beat the crap out of it...? I dont know, I take pretty good care of it so im not sure what could have caused the problem.. What would you recommend me doing?

Click to expand...

I think they would recommend a new VT shortblock
And send one my way also.

 

S

SilverBullet00

New Member

Jul 5, 2004

1,150

0

0

Wichita, KS

Nov 5, 2005

#7

• Nov 5, 2005

• #7

I think your right, do they give poor-ass college kid discounts????? Ill put a VT Engines sticker on my car