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copression testing

Old Aug 17, 2004 | 10:02 PM
  #1  
la tuya's Avatar
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Joined: Aug 2004
Posts: 6
Default copression testing

hey i am new to the scene. in order to take the compression on a b16 you have to, take the spark plug out put the tester in and what else do i have to do?and also what #'s are good and bad.thanks
 
Old Aug 18, 2004 | 12:09 AM
  #2  
sacicons's Avatar
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Default RE: copression testing

take out the fuel pump fuse (underhood fuse box) and unplug the big wire connector on the back of the distributor. then cycle the motor through seven compressions and note the reading. mine is around 205 in all four. they should all be close to each other. also, take out all four plugs before you start. if any are low then put a couple of drops of motor oil in the hole, then retest. if it is a lot better, then its the piston rings, if not, then its probably the valves. and thinking back, i see it might not be in the car yet. in that case i have no idea. sorry.
 
Old Aug 18, 2004 | 01:27 AM
  #3  
la tuya's Avatar
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Default RE: copression testing

thanks
 
Old Aug 19, 2004 | 11:43 AM
  #4  
malcolm's Avatar
Joined: May 2004
Posts: 31
Default RE: copression testing

another general tip is to give it full throttle (not running though!) to let the maximum air in.
 
Old Aug 19, 2004 | 01:52 PM
  #5  
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Default RE: copression testing

thats right, thank you. lock open the throttle with a pair of vise grips or something.
 
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