- 1. Results of compression test (what now?) (score: 1)
- Author: Der schwarze Buccaneer <js-allen@students.uiuc.edu>
- Date: Sat, 15 Nov 1997 16:38:21 -0600 (CST)
- Hello all, I've been fussing alot about my engine lately, and, thanks to some of you, I decided to buy and use a compression gauge on my MGB. Now, I know _something_ is wrong, but I'm not sure what (
- /html/mgs/1997-11/msg01020.html (10,745 bytes)
- 2. Re: Results of compression test (what now?) (score: 1)
- Author: "Tyson Sherman" <tsherman@tecinfo.com>
- Date: Sat, 15 Nov 1997 16:43:04 -0600
- Do you have any water in the oil or oil in the water? Usually these head gaskets fail between #2 & #3 which may cause #3 to have poor compression. Tyson
- /html/mgs/1997-11/msg01023.html (8,042 bytes)
- 3. Re: Results of compression test (what now?) (score: 1)
- Author: Der schwarze Buccaneer <js-allen@students.uiuc.edu>
- Date: Sat, 15 Nov 1997 17:07:57 -0600 (CST)
- Tyson, now that you mention, it seems my radiator fluid has been disappearing slowly recently. When I changed the oil, I didn't see a film or layer of water, nor any whitish discolored oil, nor have
- /html/mgs/1997-11/msg01026.html (10,232 bytes)
- 4. Re: Results of compression test (what now?) (score: 1)
- Author: "Tyson Sherman" <tsherman@tecinfo.com>
- Date: Sat, 15 Nov 1997 17:18:19 -0600
- Check the valve cover cap for that mayonaise-looking stuff. With the head pulled, a very, very accurate straight edge should indicate warpage on the head and block surfaces. I had the same problem b
- /html/mgs/1997-11/msg01029.html (8,541 bytes)
- 5. Re: Results of compression test (what now?) (score: 1)
- Author: Skip Kelsey <kelsey@value.net>
- Date: Sat, 15 Nov 1997 15:45:18 -0800
- If you do find that the problem is the head gasket, do not use the copper gaskets. In my opinion they do not work as well as the asbestos ones. You can give it a coat of aluminum paint, or a hylomar
- /html/mgs/1997-11/msg01031.html (11,438 bytes)
- 6. Re: Results of compression test (what now?) (score: 1)
- Author: Der schwarze Buccaneer <js-allen@students.uiuc.edu>
- Date: Sat, 15 Nov 1997 18:07:37 -0600 (CST)
- Skip, What's broaching the threads, and how do I do that :)? I think one of the catalogs suggested something like this, but it was and still is nothing but technobabble to me at the moment. As far as
- /html/mgs/1997-11/msg01033.html (9,945 bytes)
- 7. Re: Results of compression test (what now?) (score: 1)
- Author: "bill and penny meyer" <pplusb@northlink.com>
- Date: Sat, 15 Nov 1997 17:32:25 -0700
- 1,2,and4 do have low compression, but nothing drastic. The fact that they go to 120/125 with oil on them probably indicates that your guage reads 5-10 psi low. Figures this low are not a problem for
- /html/mgs/1997-11/msg01035.html (9,476 bytes)
- 8. Re: Results of compression test (what now?) (score: 1)
- Author: Robert Allen <boballen@sky.net>
- Date: Sat, 15 Nov 1997 20:03:52 +0000
- Did you have the throttle held open and a dowel under the dampers when you ran your test? Compression test needs unrestricted intake. In any case, the rings are a little tired in 1, 2 and 4. But if t
- /html/mgs/1997-11/msg01040.html (9,074 bytes)
- 9. Re: Results of compression test (what now?) (score: 1)
- Author: barneymg@juno.com (Barney Gaylord)
- Date: Sat, 15 Nov 1997 21:56:05 EST
- Anyone know what these results mean: Cylinder Compression With Oil In Chamber 1 110 lbf 120 2 116 125 3 >> 26 << >> 26 << 4 108 120 It's common for the head gasket to blow between #2 and #3, in which
- /html/mgs/1997-11/msg01042.html (12,728 bytes)
- 10. Re: Results of compression test (what now?) (score: 1)
- Author: Larry Macy <macy@bblmail.psycha.upenn.edu>
- Date: Sat, 15 Nov 97 23:11:40 -0500
- On 11/15/97 9:56 PM so and so Barney Gaylord said. (And I quote) OK Barney IF you get smoke when you back out of the throttle( High vacuum) is that indicative of valve guides? Do MG engines use valve
- /html/mgs/1997-11/msg01044.html (9,188 bytes)
- 11. Re: Results of compression test (what now?) (score: 1)
- Author: Nory@webtv.net (Nory)
- Date: Sun, 16 Nov 1997 00:37:44 -0500
- It's my understanding that you can get by with compression that's a little lower than specs, as long as the compression in all cylinders is pretty close to the others. That being said, I wouldn't wor
- /html/mgs/1997-11/msg01050.html (9,579 bytes)
- 12. Re: Results of compression test (what now?) (score: 1)
- Author: Nory@webtv.net (Nory)
- Date: Sun, 16 Nov 1997 00:49:28 -0500
- You could have a bad head gasket and not notice any water in the oil. I blew one in the Escort this summer and the only symptom was steam blowing out the tailpipe. When I drained the oil, I saw no w
- /html/mgs/1997-11/msg01051.html (9,814 bytes)
- 13. Re: Results of compression test (what now?) (score: 1)
- Author: jello@dns.ida.net (Phil Bates)
- Date: Sat, 15 Nov 1997 23:00:44 -0700
- Although I would not rule out the failed head gasket/warped head/cracked head theory, I have to agree with Barney. Do the simple things first - check the valve adjustment! A simple adjustment may bri
- /html/mgs/1997-11/msg01054.html (10,285 bytes)
- 14. Re: Results of compression test (what now?) (score: 1)
- Author: Nory@webtv.net (Nory)
- Date: Sun, 16 Nov 1997 01:21:40 -0500
- I agree with Phil (and Barney). By all means, if you can solve the problem without pulling the head, keep your fingers crossed and go for it. Pulling the head is a pain in the rear, although it shoul
- /html/mgs/1997-11/msg01055.html (9,236 bytes)
- 15. Re: Results of compression test (what now?) (score: 1)
- Author: Skip Kelsey <kelsey@value.net>
- Date: Sat, 15 Nov 1997 22:59:28 -0800
- You can broach the hole with a large drill bit. This removes the top threads that have raised. Use the file to further flatten the area, and to check that it is level. All of the lated B blocks had
- /html/mgs/1997-11/msg01056.html (10,612 bytes)
- 16. Re: Results of compression test (what now?) (score: 1)
- Author: Larry Macy <macy@bblmail.psycha.upenn.edu>
- Date: Sun, 16 Nov 97 03:30:40 -0500
- On 11/16/97 1:21 AM so and so Nory said. (And I quote) Finally got you in an oxymoron!! Read this and your sig line. Larry Larry & Janet 78 Midget
- /html/mgs/1997-11/msg01057.html (9,119 bytes)
- 17. Re: Results of compression test (what now?) (score: 1)
- Author: Rick Brown <mgrick@ptd.net>
- Date: Sun, 16 Nov 1997 08:10:03 -0800
- Bill, By "Specialty" you are not referring to "Special Interest", which is also in Rhode Island, are you? Rick
- /html/mgs/1997-11/msg01060.html (9,486 bytes)
- 18. Re: Results of compression test (what now?) (score: 1)
- Author: "bill and penny meyer" <pplusb@northlink.com>
- Date: Sun, 16 Nov 1997 09:36:19 -0700
- Yes. Sorry, guess I was half asleep when writing that! Bill
- /html/mgs/1997-11/msg01067.html (8,059 bytes)
- 19. Re: Results of compression test (what now?) (score: 1)
- Author: barneymg@juno.com (Barney Gaylord)
- Date: Sun, 16 Nov 1997 12:02:23 EST
- indicative of valve guides? It could be bad guides, bad rings, of an overly rich fuel mixture at the carbs. If you have good compression, badly worn guides are a prime suspect. Yes and no. They have
- /html/mgs/1997-11/msg01075.html (10,215 bytes)
- 20. Re: Results of compression test (what now?) (score: 1)
- Author: Rick Brown <mgrick@ptd.net>
- Date: Sun, 16 Nov 1997 12:47:28 -0800
- This is rather disturbing news as i have had nothing but good experience with Special Interest. Rick
- /html/mgs/1997-11/msg01077.html (7,853 bytes)
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