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2.3 T5 Engine compression PSIViews : 8366 Replies : 15Users Viewing This Thread : |
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Sep 6th, 2010, 17:56 | #1 |
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2.3 T5 Engine compression PSI
Hi there just a quick one can anyone tell me what the 2.3 T5 engine compression should be in psi ?
Thanks in advance
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Volvo 850 T5 GLT Mods so far -Polybush top engine mounting, SamcoTurbo hoses, Bailey dump valve Forge blanking plate, Tinted windows |
Sep 6th, 2010, 18:18 | #2 |
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round about 180 psi i would think but the more important thing is the DIFFERENCES in readings between cylinders ... and when doing the compression test the engine must be warm and throttle held fully open ...
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Sep 6th, 2010, 18:22 | #3 | |
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Sep 6th, 2010, 19:05 | #4 |
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thanks for your replys ! Just a bit paranoid seen as my engine has been collected today and the bloke said hes remembered all cylinders were 150psi... he said this as if it was a good thing and i should be impressed ! He does sound like a decent genuine bloke who was a bit handy with a spanner so maybe he ment when cold or hes got it wrong !
Its gunna have to go in anyway as i need a car. If its pants ill just rebuild the old engine and hope this lump lasts till i can afford the rebuild.
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Volvo 850 T5 GLT Mods so far -Polybush top engine mounting, SamcoTurbo hoses, Bailey dump valve Forge blanking plate, Tinted windows |
Sep 6th, 2010, 19:14 | #5 | |
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Jul 23rd, 2012, 15:42 | #6 |
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Compression test
Hi peeps,
I have a Thread in Compression tester gauge and i would like to carry out a compression test on my 850 t5 lump. How do i carry out the test? should i remove one plug and crank it over 4-5 turns? on the starter? or will this give wrong readings? Any help much apreciated.
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Jul 23rd, 2012, 15:51 | #7 |
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HLM304, Forge unos 17.5psi at 3.8 bar, 18t, Me7 Manifold, Blues, Walbro, De-cat, Ported n Polished Head, 3" Dp stainlesss exhaust, Carbon Air intake, Polly Bushed thoughout. |
Jul 23rd, 2012, 16:02 | #8 | |
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Mar 9th, 2013, 22:27 | #9 | |
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Mar 9th, 2013, 23:21 | #10 |
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Your pressure is pretty healthy and with the large inlet manifold volume it probably wont make a lot od difference , but it is normal praqctice to open the throttle so you get a full charge of air into the cylinder to compress . If you crank it with throttle shut incoming air is restricted so pressure will be less .
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