comp tester

Reply Subscribe

Thread Tools

Search this Thread

Jun 16, 2004 | 01:32 PM

koukifc3s

Thread Starter

Clogged cat

iTrader: (3)

Joined: Sep 2002

Posts: 2,000

Likes: 0

From: Orange County, CA

comp tester

hi,
which piston comp testers have u guys used to test ur compression?
Any brand u would recommend?
thanks

Jun 16, 2004 | 01:42 PM

SureShot

Seduced by the DARK SIDE

Joined: Apr 2001

Posts: 7,323

Likes: 2

From: Orange Park FL (near Jax)

I use a generic tester in the trailing hole & hold the bleed valve open.

Jun 16, 2004 | 02:07 PM

OverDriven

Rotary Enthusiast

Joined: Feb 2002

Posts: 938

Likes: 0

From: VA

That will tell you if you have even compression...not what the actual numbers are.

-Joe

Jun 16, 2004 | 02:09 PM

Sideways7

Lives on the Forum

iTrader: (7)

Joined: Dec 2003

Posts: 6,598

Likes: 10

From: Temple, Texas (Central)

As far as brands, I don't think it matters. I know theres a few write-ups on how to do a compression test with a normal gauge, I just can't find them at the moment.

Jun 16, 2004 | 02:21 PM

koukifc3s

Thread Starter

Clogged cat

iTrader: (3)

Joined: Sep 2002

Posts: 2,000

Likes: 0

From: Orange County, CA

theres a write up at http://www.rotaryresurrection.com/

Jun 16, 2004 | 02:33 PM

SureShot

Seduced by the DARK SIDE

Joined: Apr 2001

Posts: 7,323

Likes: 2

From: Orange Park FL (near Jax)

Quote:

Originally posted by OverDriven
That will tell you if you have even compression...not what the actual numbers are.

-Joe

It works well for me.
It is tricky.
You have to open the bleed just enough the get the needle to bounce.
Then spot the highs.

Do you not get good values?

Jun 16, 2004 | 02:44 PM

hugues

Why am I here ?

Joined: May 2002

Posts: 671

Likes: 0

From: Boston, MA

You depress the valve to check for eveness (sp ?) of the bounces. The values the needle shows are not accurate ... they are lowballing the actual compression ... of course, all this is my opinion.

http://www.geocities.com/huguesdc1/faqcompression.html

Hugues -