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| Forum name | 4G63 Tech |
| Topic subject | LeakDown & Compression Test Question |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i67&topic_id=8109 |
8109, LeakDown & Compression Test Question Posted by Hult250R, Aug-04-05 02:49 PM
OK Ive been battling what I think is Phantom knock ever since I put the motor back in the car this winter after doing the following mods: Fidanza Alum Flywheel ACT 2600 MAFT new timing belt and waterpump
Ive taken the motor out again and removed the balance shafts. Also hoping the Phantom knock was a motor mount or something i forgot to tighten the first time... It wasnt.
I did a compression test and got 155-160-165-165 (left to right) I did a leak down test today and got a little blowby into the crankcase in all of them. Would this cause Phantom knock??
Also theres no Oil in the coolant or vise versa
I hope i explained this right. Im trying to get this damn thing to the SO but I think Satan is against me.
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8110, RE: LeakDown & Compression Test Question Posted by eclipzGST, Aug-04-05 09:28 PM
Did you try replacing the knock sensor? They tend to get overly sensitive when they're on their way out.
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8111, RE: LeakDown & Compression Test Question Posted by Hult250R, Aug-05-05 11:09 AM
yeah, new knock sensor, new O2 sensor, Ive tried tuning it out too, no luck...
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8112, RE: LeakDown & Compression Test Question Posted by Diceman19, Aug-05-05 03:28 PM
you have dsmlink right? they have a "phantom knock" eliminator that you could try out. basically it just rejects readings from the sensor until a certain rpm.
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8113, RE: LeakDown & Compression Test Question Posted by Hult250R, Aug-06-05 07:54 AM
Originally posted by Diceman19 you have dsmlink right? they have a "phantom knock" eliminator that you could try out. basically it just rejects readings from the sensor until a certain rpm.
I wish I had DSMLink
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8114, RE: LeakDown & Compression Test Question Posted by Jeff_99gs, Aug-10-05 07:34 AM
Lifter tick. How old are your lifters?
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8115, RE: LeakDown & Compression Test Question Posted by Hult250R, Aug-10-05 11:04 AM
Originally posted by Jeff_99gs Lifter tick. How old are your lifters?
Month old 3G big bores No lifter tick anymore :P
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