stew Posted July 10, 2007 Report Share Posted July 10, 2007 HI all,Got the result of the compression test as the 850 T5 1995 was using approx 4500ml in 5000kms?? Car has travelled 165000kms.Dry Wet1:125psi 1:130psi2:100 2:1103:100 3:1104:100 4:1105:110 5:100My indie suggests replacement of the engine with Volvo exchange unit approx $7000.00AUD installed.Any ideas appreciated?? I supose I could just keep topping up with oil as there is no smoke at start up or under heavy acceleration so i dont understand where the oil is going?Strange thing is if i were to go on a long trip such as an 700kms highway run car will use no oil??? If i mix this with more city driving oil consumption goes up??Again any info or suggestions appreciated.ThanksStew Link to comment Share on other sites More sharing options...
Zappo Posted July 10, 2007 Report Share Posted July 10, 2007 Yeah, those numbers are low. Seems really low for a car with just 165000 km on it.Is it possible to get a leak down test done on it? Link to comment Share on other sites More sharing options...
bagodoosh Posted July 10, 2007 Report Share Posted July 10, 2007 if i remember correctly, oil consumption of that nature has something to do with the valves. Link to comment Share on other sites More sharing options...
md850 Posted July 10, 2007 Report Share Posted July 10, 2007 Yeah, those numbers are low. Seems really low for a car with just 165000 km on it.Is it possible to get a leak down test done on it? Yeah Zappo, at 60 to 70 psi too low. I feel that car needs a valve job and new valve seals and a pcv job while you are at it. The differences in wet/dry compression readings aren't significant enough to suggest that the rings are so shot. What is the performance of the car like? Hey Zaps where did you get those kool headlights? Link to comment Share on other sites More sharing options...
Zappo Posted July 10, 2007 Report Share Posted July 10, 2007 Yeah Zappo, at 60 to 70 psi too low. I feel that car needs a valve job and new valve seals and a pcv job while you are at it. The differences in wet/dry compression readings aren't significant enough to suggest that the rings are so shot. What is the performance of the car like? Hey Zaps where did you get those kool headlights?I agree, the wet test is for rings and this shows they are ok. Low readings like that are usually valves, but it is surprising it is even across all cylinders. I would pull the head to see what is going on before thinking about replacing the entire engine.The headlights in my avatar are custom made projectors. They aren't mine; that picture is from a test fit to see what they looked like on a black car. Car is mine, lights are not. Link to comment Share on other sites More sharing options...
stew Posted July 10, 2007 Author Report Share Posted July 10, 2007 I agree, the wet test is for rings and this shows they are ok. Low readings like that are usually valves, but it is surprising it is even across all cylinders. I would pull the head to see what is going on before thinking about replacing the entire engine.The headlights in my avatar are custom made projectors. They aren't mine; that picture is from a test fit to see what they looked like on a black car. Car is mine, lights are not.Thanks for all the reply's. Pulling the head and getting the valves done is probably a cheaper option?? Any idea's on costs??? Is it a difficult job and within an experienced (good) home mechanic ability!!! A leak down test has not been done and I will suggest this to the mechanic's. I suppose this has been asked a million times but what is involved in a leak down test?As for the car it has good performance but compared to an S70 T5 auto I test drove the other week it felt a little slow. Could be the difference between auto and Manual who know's??I'm loathed to get rid of the car as it has a new manual tranny, clutch, suspension, radiator etc all installed over the last couple of years so selling this would be difficult as the way I see it if I installed a new engine I would at least have to keep the car for the next few years. Link to comment Share on other sites More sharing options...
Zappo Posted July 11, 2007 Report Share Posted July 11, 2007 Not exactly sure what is involved with the test, but I can guess. The cylinder is pressurized with all valves closed and they test how long it takes for the pressure to drop a certain amount/rate.Pulling the head takes some knowledge, mostly because you can damage the valve cover if it isn't done correctly. Link to comment Share on other sites More sharing options...
stew Posted July 11, 2007 Author Report Share Posted July 11, 2007 Not exactly sure what is involved with the test, but I can guess. The cylinder is pressurized with all valves closed and they test how long it takes for the pressure to drop a certain amount/rate.Pulling the head takes some knowledge, mostly because you can damage the valve cover if it isn't done correctly.Thanks Zappo for the reply. I think this would be best left to the experts as I would not want to damage anything.Will keep you posted.CheersStew Link to comment Share on other sites More sharing options...
md850 Posted July 11, 2007 Report Share Posted July 11, 2007 Not exactly sure what is involved with the test, but I can guess. The cylinder is pressurized with all valves closed and they test how long it takes for the pressure to drop a certain amount/rate.Pulling the head takes some knowledge, mostly because you can damage the valve cover if it isn't done correctly.Pulling the head is one hard part but putting it back together is even faqing harder as volvo says you need special tools to hold down valve cover and lock camshafts and all that crap so this aint for the faint hearted.I did mine myself without the volvo tools but that is a long story with a lot of faqing cussing and such so get a good volvo mechanic and let them pull the head and check it for warping and give you a good valve job and while the head is off he can check the condition of your rings as well. :D Link to comment Share on other sites More sharing options...
Zappo Posted July 11, 2007 Report Share Posted July 11, 2007 Pulling the head is one hard part but putting it back together is even faqing harder as volvo says you need special tools to hold down valve cover and lock camshafts and all that crap so this aint for the faint hearted.I did mine myself without the volvo tools but that is a long story with a lot of faqing cussing and such so get a good volvo mechanic and let them pull the head and check it for warping and give you a good valve job and while the head is off he can check the condition of your rings as well. I helped CJ when he first did mine. No special tools, just have to go slow. Hardest part was actually the removal for us. Link to comment Share on other sites More sharing options...
stew Posted July 12, 2007 Author Report Share Posted July 12, 2007 From the sounds of it pulling the head would be rather difficult and the cost involed versus the cost of the new engine could work out to be similar in the long run.I wouldn't have any trouble removing the entire engine and replacing it as a whole but when we get down to the internals i could get a little lost if you know what I mean!!!New engine installed was approx $7000AUD installed and ready to drive. Cost of the factory exchange unit approx$5000AUD, so I could save myself a couple of dollars by replacing with assistance from a few mates.Stew Link to comment Share on other sites More sharing options...
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