compression test

Post by **gardnerlawncare** » Thu Jul 09, 2009 5:15 am

what should the comppression test range be on a 91 nissan 2.4 liter

Post by **chrismo240sx** » Thu Jul 09, 2009 5:34 am

dont quote me for sure, but if i remember correctly, should read between 150-180 depending on the condition of the motor. Also there shouldnt be a loss of more than 10 psi between each cylinder.

If its lower than say 150, time for a rebuild or swap!!

Someone correct me if im wrong

Post by **gardnerlawncare** » Thu Jul 09, 2009 5:59 am

thanks for the compression reading, i was going to test my compression b/c i want to make sure that it is not my motor acting up. The car is running very rough, like it is missing. I gave it a tune up and it will not idle. It feels like a fuel problem maybe an injector. I rplace one last year but how can you tell that it is an injector. I plan to replace the distributor and fuel filter. The car blow out a little blue smoke and burns a little oil. My old plugs were black with no oil on them , but my car is now burning alot of black smoke . any ideas other than me to take her in to the shop. thanks

Post by **r3v_v3ng3** » Sun Jul 12, 2009 9:21 pm

disconnect the wires to the injectors and check the injectors resistance reading they should be around 13 ohms i think