[s-cars] Engine Compression Test (Warm or Hot?)

[James Murray (LMC)]

This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
--
[ Picked text/plain from multipart/alternative ]
I borrowed the compression tool from a friend at work, so I wanted to check=
 the health of my car. I would assume that if the compression test shows go=
od results that there is no need for a leak down test? I always considered =
a leak down test the second step to identifying the source of the problem w=
hile the compression test mearly says you have a problem. True/False?

	-----Original Message-----
	From:	Trevor Frank [SMTP:tfrank at symyx.com]
	Sent:	November 26, 2002 12:26 PM
	To:	James Murray (LMC); s-car-list at audifans.com
	Subject:	RE: [s-cars] Engine Compression Test (Warm or Hot?)


	A compression test is o.k. to see if the motor is still alive, but if
	you want some good info on what may be wrong with the motor I would do a
	leak down test.  This is especially useful if you are purchasing a used
	car.  It can give a decent indication of the condition of the rings and
	valves.

	-----Original Message-----
	From: James Murray (LMC) [mailto:James.Murray at ericsson.ca]
	Sent: Monday, November 25, 2002 6:44 AM
	To: 's-car-list at audifans.com'
	Subject: [s-cars] Engine Compression Test (Warm or Hot?)


	This message is in MIME format. Since your mail reader does not
	understand this format, some or all of this message may not be legible.
	--
	[ Picked text/plain from multipart/alternative ]
	Does a compression test need to be done while the engine is warm? Or can
	it be done while cold?

	I did one while the engine was cold and got a fairly consistant 11 or
	11.5 bar on all 5 cylinders. Specifications are between 9 Bar and 13 Bar
	and the wear limit is supposed to be 7 Bar, while max difference between
	cylinders is 3 Bar.

	Just wondering if I need to re-run the test to ensure I got valid data?

	Cheers, /James
	_______________________________________________
	S-CAR-List mailing list
	S-CAR-List at audifans.com
	http://www.audifans.com/mailman/listinfo/s-car-list

	=3D=3D=3D=3D=3D=3D=3D
	Notice: This e-mail message, together with any attachments, contains
	information of Symyx Technologies, Inc. that may be confidential,
	proprietary, copyrighted, privileged and/or protected work product,
	and is meant solely for the intended recipient. If you are not the
	intended recipient, and have received this message in error, please
	contact the sender immediately, permanently delete the original and
	any copies of this email and any attachments thereto.