D15B7 Compession Numbers
07-28-2006, 10:35 PM
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D15B7 Compession Numbers
What is "good" number for compression on a D15b7
:story:
Well, I bought a compression checker
and I got between 145-150 on each cylinder. Motor has 104xxx on it and has been sitting for ~8 months
This is with the motor being allowed to run till the fan cycles
and with the throttle being held wide open.
This is also tested the first time the motor had been started in a while.
To me these numbers seem a touch low.
Any reasons/ideas/thing I could do to help?
Thanks.
:story:
Well, I bought a compression checker
and I got between 145-150 on each cylinder. Motor has 104xxx on it and has been sitting for ~8 months
This is with the motor being allowed to run till the fan cycles
and with the throttle being held wide open.
This is also tested the first time the motor had been started in a while.
To me these numbers seem a touch low.
Any reasons/ideas/thing I could do to help?
Thanks.
07-29-2006, 02:49 PM
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Re: (Mista Bone)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone »</TD></TR><TR><TD CLASS="quote">175-180 is normal, I'll be testing my 165k motor soon.......</TD></TR></TABLE>
Yeah I know :/
I was just hoping that there would be a fixable cause/reason/way to help
Yeah I know :/
I was just hoping that there would be a fixable cause/reason/way to help
07-29-2006, 02:57 PM
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Re: (Minglor)
What compression tester do you have? If there all consistant i think youll be fine since the motor hasnt moved in 8 months. Try to get it to idle for a min. and then do another test should be 180.
07-29-2006, 03:06 PM
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Re: (Luserkid)
hey guys i have a d15b7 aswell and just wondering whats the proper way to chek your compression.
also do you guys buy your own testers or rent them?
thanks Greg
also do you guys buy your own testers or rent them?
thanks Greg
07-29-2006, 03:39 PM
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Re: D15B7 Compession Numbers (Minglor)
If all the numbers are within the 140-150 range, you're fine. They're all pretty close, and that's the important part.
You can try putting a drop of oil in each of the cylinders to see if the numbers increase.
You can try putting a drop of oil in each of the cylinders to see if the numbers increase.
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07-29-2006, 04:41 PM
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Re: (Vitek)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vitek »</TD></TR><TR><TD CLASS="quote">hey guys i have a d15b7 aswell and just wondering whats the proper way to chek your compression.
also do you guys buy your own testers or rent them?
thanks Greg</TD></TR></TABLE>
I bought one at Napa for 40 bucks.
Removed all plugs
removed ECU fuse
hooked up tester
Held WOT
and cranked each only 5 times (not sure on this last part being perfect)
also do you guys buy your own testers or rent them?
thanks Greg</TD></TR></TABLE>
I bought one at Napa for 40 bucks.
Removed all plugs
removed ECU fuse
hooked up tester
Held WOT
and cranked each only 5 times (not sure on this last part being perfect)
07-30-2006, 05:09 PM
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Re: (Vitek)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vitek »</TD></TR><TR><TD CLASS="quote">its on a runing engine right?</TD></TR></TABLE>
No
You put in the tester with all the plugs out and ecu fuse out
You carnk the motor ~5 times
No
You put in the tester with all the plugs out and ecu fuse out
You carnk the motor ~5 times
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