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Lifter noise I have a g35 and its making a loud lifter noise since i changed my exhuast

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  • Infiniti Master
  • 42,545 Answers

By changing the exhaust I take it that you removed the standard exhaust manifold and fitted extractors in instead. The noise may not be lifters but a exhaust leak form the exhaust not being fitted properly (gasket ) or just and gas noise as the exhaust valve opens that is normally silenced by a stock manifold.

Posted on Jan 03, 2014

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6ya6ya
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Posted on Jan 02, 2017

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j_del
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SOURCE: knocking lifter

Give it a Seafoam treatment - the stuff is available at the auto parts stores and at Walmart. Instructions are on the can - it's an easy procedure that can work wonders on an older engine.

Posted on Aug 17, 2008

dustyboner
  • 331 Answers

SOURCE: lifters

Its a common problem on the eclipse and 3000gt.

click HERE for a complete guide to checking and repairing the lifters (actually "lash adjusters")

you can download the engine repair manual by clicking this link: 6g72 engine manual PDF

Posted on Dec 11, 2008

pippall
  • 1486 Answers

SOURCE: loud exhaust rattle/grinding

sounds like the baffles have come adrift in your exhaust sylenser

Posted on Jul 16, 2009

  • 86 Answers

SOURCE: when I turn on my 2004 infinity g35, it squeaks

There may be debris in your drive belt causing a squeek. With the engine running pour some water on each belt, this will cause the belt at fault to squeek.

Posted on Feb 14, 2010

  • 63 Answers

SOURCE: Loud lifter noise

Over time and miles the lifters tend to collapse and the only way to quiet the noise is to replace them or use something like lucas to try to keep the pressure up in the lifters. If you did replace the lifters it would help with performance because when the lifters start to collapse the valves do not open all of the way. Hope this helps!

Posted on Jul 30, 2010

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1 Answer

Can lifters be replaced


Oh yea, lifters can be replaced , best if you replace cam an lifters together ! Loud knocking is not usually associated with lifters , they usually make a ticking noise ! Knocking noise is most usually in the bottom of the motor , main or rod bearings . most of the time rod bearings !

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Ok i got a 1991 ford f-150 with the 351 5.8L with 242xxxkm's on it. i know what a lifter tick is, but i want to make sure, the guy before me put headers on it and there are a few header bolts missing, and...


It does sound like a lifter tick. You can have fine oil pressure right up till the lifter blows a hole in your pan. The fact that it gets louder as you accelerate really makes me think that it could be the problem. Does it get louder as the vehicle warms. If so you might have a big problem. Your air problem maybe blow bye from improper installation of pistons. Not to sure bout that but the tick I would worry about.

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