- 1. Compression test how to (score: 1)
- Author: drewfrink@mac.com
- Date: Mon, 15 Aug 2005 11:03:40 -0600
- To further highlight my lack of automotive knowledge, I was wondering if anyone could point me in the direction of some instructions on how to do a compression test on my TR4. I have a compression gu
- /html/triumphs/2005-08/msg00508.html (7,911 bytes)
- 2. Re: Compression test how to (score: 1)
- Author: Steven Newell <steven@newellboys.com>
- Date: Mon, 15 Aug 2005 12:54:50 -0600
- Drew, here you go: - Put the car in neutral, engage the handbrake. - Label the spark wires so you get them back in the same order, then disconnect (most parts shops have little plastic numbers that c
- /html/triumphs/2005-08/msg00509.html (9,362 bytes)
- 3. Re: Compression test how to (score: 1)
- Author: drewfrink@mac.com
- Date: Mon, 15 Aug 2005 13:34:01 -0600
- Thanks for the instructions--that was what I was looking for. It's funny, but (as is true in many fields) lots of instructions you run across assume a certain level of knowledge that a true beginner
- /html/triumphs/2005-08/msg00511.html (7,985 bytes)
- 4. Re: Compression test how to (score: 1)
- Author: "pethier@isd.net" <pethier@isd.net>
- Date: Mon, 15 Aug 2005 14:37:29 -0500
- While you are doing this, have the throttles all the way open. This gives faster and more consistant results. Phil Ethier
- /html/triumphs/2005-08/msg00512.html (7,963 bytes)
- 5. Re: Compression test how to (score: 1)
- Author: ZoboHerald@aol.com
- Date: Mon, 15 Aug 2005 16:12:20 -0400
- == And (please, someone, correct me if I'm wrong), it's a good idea to perform such a test on a thoroughly warmed-up engine. --Andy Mace
- /html/triumphs/2005-08/msg00514.html (8,287 bytes)
- 6. RE: Compression test how to (score: 1)
- Author: "Mark Hooper" <mhooper@digiscreen.ca>
- Date: Mon, 15 Aug 2005 16:24:10 -0400
- Good point. I'd thought it was on a cold engine. So much for the memory. Mark == And (please, someone, correct me if I'm wrong), it's a good idea to perform such a test on a thoroughly warmed-up engi
- /html/triumphs/2005-08/msg00515.html (8,898 bytes)
- 7. Re: Compression test how to (score: 1)
- Author: "pethier@isd.net" <pethier@isd.net>
- Date: Mon, 15 Aug 2005 16:46:32 -0500
- Just make sure it is not an overheated car with carbon in the cylinders. Many years ago I had my neighbor's Chev 6-cylinder in one day trying to figure out what was wrong with it. I was using the pu
- /html/triumphs/2005-08/msg00516.html (8,675 bytes)
- 8. RE: Compression test how to (score: 1)
- Author: "Joe Curry" <spitlist@cox.net>
- Date: Mon, 15 Aug 2005 15:15:43 -0700
- I have found that it is best to take all the plugs out before starting the compression check. If the engine has set for any length of time a squirt of oil into each cylinder will help achieve correct
- /html/triumphs/2005-08/msg00517.html (9,307 bytes)
- 9. RE: Compression test how to (score: 1)
- Author: "Randall" <tr3driver@comcast.net>
- Date: Mon, 15 Aug 2005 15:49:42 -0700
- In fact, most course manuals say to do it that way. That I disagree with ! Squirting oil into the cylinders will mask leaking rings ... in fact this is exactly how one tests whether it is rings or v
- /html/triumphs/2005-08/msg00518.html (8,590 bytes)
- 10. Re: Compression test how to (score: 1)
- Author: Geo Hahn <ahwahnee@cybertrails.com>
- Date: Mon, 15 Aug 2005 15:55:10 -0700
- I also prop up the pistons in the carbs... have a thingy made from 2 bits of cardboard & duct tape that inserts edgewise into each carb to hold the pistons up. Having them connected by duct tape assu
- /html/triumphs/2005-08/msg00519.html (9,019 bytes)
- 11. RE: Compression test how to (score: 1)
- Author: "Randall" <tr3driver@comcast.net>
- Date: Mon, 15 Aug 2005 16:01:01 -0700
- As a side comment, Harbor Freight sells an inexpensive remote starter switch ($7 list, frequently on sale for $3.50) that is very handy for such operations. 5 percent variation is very good, 10 perc
- /html/triumphs/2005-08/msg00520.html (9,101 bytes)
- 12. RE: Compression test how to (score: 1)
- Author: "Joe Curry" <spitlist@cox.net>
- Date: Mon, 15 Aug 2005 16:04:57 -0700
- In fact, most course manuals say to do it that way. That I disagree with ! Squirting oil into the cylinders will mask leaking rings ... in fact this is exactly how one tests whether it is rings or va
- /html/triumphs/2005-08/msg00521.html (9,873 bytes)
- 13. RE: Compression test how to (score: 1)
- Author: "Randall" <tr3driver@comcast.net>
- Date: Mon, 15 Aug 2005 16:56:02 -0700
- Only for you, Joe, only for you. So either way, doing a compression check on an engine that hasn't been run recently doesn't provide accurate measurements. If you're not going to do it right, why do
- /html/triumphs/2005-08/msg00525.html (8,808 bytes)
- 14. RE: Compression test how to (score: 1)
- Author: "Joe Curry" <spitlist@cox.net>
- Date: Mon, 15 Aug 2005 17:15:51 -0700
- Only for you, Joe, only for you. So either way, doing a compression check on an engine that hasn't been run recently doesn't provide accurate measurements. If you're not going to do it right, why do
- /html/triumphs/2005-08/msg00526.html (9,277 bytes)
- 15. RE: Compression test how to (score: 1)
- Author: "Randall" <tr3driver@comcast.net>
- Date: Mon, 15 Aug 2005 18:03:58 -0700
- Which even more argues for getting it running and warm first, and then checking the compression. Randall
- /html/triumphs/2005-08/msg00531.html (8,670 bytes)
- 16. RE: Compression test how to (score: 1)
- Author: "Joe Curry" <spitlist@cox.net>
- Date: Mon, 15 Aug 2005 18:36:15 -0700
- And I would guess that you would start it up without a squirt of oil in the cylinders as well! Joe Which even more argues for getting it running and warm first, and then checking the compression. Ran
- /html/triumphs/2005-08/msg00533.html (8,997 bytes)
- 17. Re: Compression test how to (score: 1)
- Author: "Michael Hutchinson" <mahutchinson@cox.net>
- Date: Mon, 15 Aug 2005 20:55:39 -0700
- The benifit of running a dry compression test first is that it allows you to check the relative sealing capabilities of the piston rings. If you have a low reading on your dry test and then perform a
- /html/triumphs/2005-08/msg00535.html (8,926 bytes)
- 18. Re: Compression test how to (score: 1)
- Author: d spence <dkspence@telus.net>
- Date: Mon, 15 Aug 2005 21:06:54 -0600
- It's time to stop and listen. What Randall said was absolutely correct. You do a first check on a cold dry engine as in, the oil has drained down to the pan. Turn the engine over at least three revo
- /html/triumphs/2005-08/msg00536.html (10,111 bytes)
- 19. Re: Compression test how to (score: 1)
- Author: Andrew Frink <drewfrink@mac.com>
- Date: Mon, 15 Aug 2005 21:11:52 -0600
- Thanks all for the advice. I chose to drive the car around a little to warm it up (BTW - I have a Celsius temp gauge, which seems strange but works just fine). Oil pressure seemed okay, maybe a littl
- /html/triumphs/2005-08/msg00537.html (9,033 bytes)
- 20. Re: Compression test how to (score: 1)
- Author: d spence <dkspence@telus.net>
- Date: Mon, 15 Aug 2005 21:13:23 -0600
- You run an engine dry every time you start it. By your reasoning you should pull the plugs and squirt oil into it every time you start it. Most modern engines outlast the car they're in. "It's a fac
- /html/triumphs/2005-08/msg00538.html (8,762 bytes)
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