Volta55 Posted September 19, 2013 Report Share Posted September 19, 2013 around 125psi for all 5 cylinders i have read places that 160-180 is what you want... others say lower psi Link to comment Share on other sites More sharing options...
gilber33 Posted September 19, 2013 Report Share Posted September 19, 2013 Even across all cylinders is more important. Yeah, you want to be 160 plus, but you also want it to be even. Link to comment Share on other sites More sharing options...
Volta55 Posted September 19, 2013 Author Report Share Posted September 19, 2013 so nothing is warped, but most likely my rings are shot or my cylinder walls are scored? Link to comment Share on other sites More sharing options...
rmorse Posted September 19, 2013 Report Share Posted September 19, 2013 Add a spoonful of oil and try again. *sings* Just a spoonful of oil, makes the numbers go up Link to comment Share on other sites More sharing options...
erikv11 Posted September 19, 2013 Report Share Posted September 19, 2013 How many miles on the engine? 125 is low, so low that it is more likely the gauge is inaccurate than all cylinders are at 125. Link to comment Share on other sites More sharing options...
Keaton85 Posted September 19, 2013 Report Share Posted September 19, 2013 Pretty rare for the cylinders to be shot on the motors. Link to comment Share on other sites More sharing options...
hotpantslovebug Posted September 19, 2013 Report Share Posted September 19, 2013 did a compression test twice. two different gauges acouple months apart. first gauge was the blue and black advanced auto. 165 ish accross the board. second was autozone oem rental. gave me 135 ish accross the board.185k on the motor. I think gauges can be less accurate but like everyone said it matters more that they are within 10% or whatever the spec is. Link to comment Share on other sites More sharing options...
Volta55 Posted September 19, 2013 Author Report Share Posted September 19, 2013 220K on the motor, i bought the 855 last month. this thing is burying me with work man.. my alternator just went a couple days ago and now a coolant smell inside ( heater core ) ontop of all the motor mounts, midwest ABS, temp sensors and weather trim i just bought stage 0 is so far away with a full time job and a tiny wallet tempting just to go back to the Japanese v40 low moral i understand the concept of the oil on top of the piston heads to create higher PSI.. but what does a wet compression test prove when actual driving compression? Link to comment Share on other sites More sharing options...
Ol' Dirty Noodle Posted September 19, 2013 Report Share Posted September 19, 2013 so you still have the 40???? i don't get it, take this heap off the road and fix it and daily the 40 Link to comment Share on other sites More sharing options...
Volta55 Posted September 19, 2013 Author Report Share Posted September 19, 2013 so you still have the 40???? i don't get it, take this heap off the road and fix it and daily the 40 yeah the 40 is still my daily.. the low compression results really threw me for a loop.. i should have saved up another grand or two and bought a decent one and not a f5cking money pit Link to comment Share on other sites More sharing options...
Keaton85 Posted September 19, 2013 Report Share Posted September 19, 2013 All the items you listed are so cheap and normal. You bought a 200k+ 850, what do you expect? Any used vehicle like that will need a lot of work. ALWAYS bank on putting $1k right into a used car, no matter what it is. Link to comment Share on other sites More sharing options...
Volta55 Posted September 19, 2013 Author Report Share Posted September 19, 2013 All the items you listed are so cheap and normal. You bought a 200k+ 850, what do you expect? Any used vehicle like that will need a lot of work. ALWAYS bank on putting $1k right into a used car, no matter what it is. you are correct.. mounts, abs module heater core exc were cheap and will be easy to install.. but now dealing with the hard internals of an engine intimidates me for sure Link to comment Share on other sites More sharing options...
Matty Moo Posted September 19, 2013 Report Share Posted September 19, 2013 Were you testing the compression warm or cold? Link to comment Share on other sites More sharing options...
Volta55 Posted September 19, 2013 Author Report Share Posted September 19, 2013 warm Link to comment Share on other sites More sharing options...
Matty Moo Posted September 19, 2013 Report Share Posted September 19, 2013 I don't know brother....I've tested compression on every Volvo I've had and the lowest I've seen was on a s70 GLT with 235k that was extremely used. That was right around 150-155 on all five cylinders. That same car now has 270 or 290k and still runs like a top. You think it might be your gauge? The numbers are way too consistent across all five. Let's just say for shiggles that it was heavily neglected and the oil was rarely changed, neglect like that and you would have other engine problems that would be fairly prevalent. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.