ALEX 98 1 Cars Posted June 18, 2006 Iv'e been having a bit of bother with My girlfriends car, The headgasket went and she drove it a bit with the water light on before it conked out. I'm trying to fix it as cheap as possible to flog it as she as a new one now. The Link to the progress is HERE . Iv'e bought a compression tester but I'm trying to find out what the readings mean. Heres the readings again. 1: 160 Psi 2: 135 Psi 3: 60 Psi 4: 55 Psi I tried again this time with a cap full of oil down each bore. 1: 230 Psi 2: 235 Psi 3: 135 Psi 4: 100 Psi BTW the car is a TU 1.1 106 engine with 111,000 miles on the clock. Share this post Link to post Share on other sites
jackherer 543 Posted June 18, 2006 she drove it a bit with the water light on before it conked out. you don't mention having the head skimmed or even checked for straighness in your other thread, if it was driven until it stopped its almost certainly warped. Share this post Link to post Share on other sites
205007 12 Posted June 18, 2006 (edited) your readings seem consistent buddy, id say the rings are gone or what jack says is also very likley Edited June 18, 2006 by 205007 Share this post Link to post Share on other sites
Rippthrough 98 Posted June 18, 2006 (edited) Heres the readings again. 1: 160 Psi 2: 135 Psi 3: 60 Psi 4: 55 Psi I tried again this time with a cap full of oil down each bore. 1: 230 Psi 2: 235 Psi 3: 135 Psi 4: 100 Psi Well, the rings are a bit duff all around, and I'd guess there's a leak in the headgasket between 3 & 4 Edited June 18, 2006 by Rippthrough Share this post Link to post Share on other sites
pugpete1108 62 1 Cars Posted June 18, 2006 i had a question about compression testing , but felt silly to ask . can you do a compressing test on an engine out of the car? just turn it over on the starter? maybe sorry for being a dumb ass duh Share this post Link to post Share on other sites
Pug_101 0 Posted June 18, 2006 Well, the rings are a bit duff all around, and I'd guess there's a leak in the headgasket between 3 & 4 Sounds about right, but what method did you use to do the testing? Some points you should have followed: Do 1 cylinder at a time replacing the spark plug before moving on to the next cylinder. The throttle butterfly should have been jammed open when turning over engine. Run engine over untill the gauge reaches it's highest point, rather than use a time period of cranking i had a question about compression testing , but felt silly to ask . can you do a compressing test on an engine out of the car? just turn it over on the starter? maybe sorry for being a dumb ass duh Yes that all thats being done in the car. Just make sure the engine's held down well. Cheers Share this post Link to post Share on other sites
jackherer 543 Posted June 18, 2006 Yes that all thats being done in the car. Just make sure the engine's held down well. make sure its got oil in it too! Share this post Link to post Share on other sites
ALEX 98 1 Cars Posted June 19, 2006 you don't mention having the head skimmed or even checked for straighness in your other thread, if it was driven until it stopped its almost certainly warped. I didn't get the head checked or skimmed as I was trying to fix it on a budget. We knew the Gasket was going as it was slowly drinking water, and oil was finding its way into the header tank. Funny though as there wasn't any water in the oil, even when the gasket finally went. The gasket had blown in cylinder number 2. about a 1/4 inch gap of the metal sealing ring was bridged. She said she was near the junction she wanted to come off off the M62 when the water light came on. She kept driving for a few minutes till It conked out at the bottom of the slip road. She said a Transit van driver was pointing at the rear of her car just as she left the motorway. When It conked out a cloud of steam came from under the bonnet, which I found must have come from a split radiator hose. Sounds about right, but what method did you use to do the testing?Some points you should have followed: Do 1 cylinder at a time replacing the spark plug before moving on to the next cylinder. The throttle butterfly should have been jammed open when turning over engine. Run engine over untill the gauge reaches it's highest point, rather than use a time period of cranking Yes that all thats being done in the car. Just make sure the engine's held down well. Cheers Exactly that method. The instructions were on the back of the compression tester box. Share this post Link to post Share on other sites
Alastairh 47 Posted June 19, 2006 You'll need to get the head skimmed. Alastair Share this post Link to post Share on other sites
ALEX 98 1 Cars Posted June 19, 2006 I'm not spending money on it if it doesn't need spending. I'm not convinced the head is the problem. The coolant system isn't pressurising, neither is any steam coming from the exhaust. It is burning a bit of oil though when it's revved. Share this post Link to post Share on other sites
Rippthrough 98 Posted June 19, 2006 I'm not spending money on it if it doesn't need spending.I'm not convinced the head is the problem. The coolant system isn't pressurising, neither is any steam coming from the exhaust. It is burning a bit of oil though when it's revved. Our coolant system didn't pressurise when there was a small crack between 3&4, but it did cause the water temp to go up under load, and dropped the cylinder pressures by 30psi compared to the other two. One head skim and new gasket later, problem solved. Share this post Link to post Share on other sites
ALEX 98 1 Cars Posted June 19, 2006 The fact that I'm getting exhaust fumes from the dipstick tube and oil filler cap makes me think it's the rings. Share this post Link to post Share on other sites
scotthall39 0 Posted June 20, 2006 As the head was not checked or skimmed i think this could be your problem. Definatly needs a skim at the very least. Or pick up a cheap bare engine to just drop in. Share this post Link to post Share on other sites
