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Forum namePerformance/Engine
Topic subjectknocking sound.. please help!
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=128730
128730, knocking sound.. please help!
Posted by 97eclipseRS, Nov-16-09 04:00 PM
hi i just had my engine built last year late spring and i had forged JE pistons and Eagle rods put in. bored out a little. last friday i got in the car, turned it on and it was ticking. it sounded like lifter tick so i replaced the 2 lifters that sounded like it was coming from them. but the sound is still there. i did a compression test today and the numbers came out to test 1=215,215,180,215... test 2= 215,215,165,220--i did do the test cold.. anyway what could the ticking be?? as you rev the engine the ticking gets faster and louder. someone mentioned to me rod knock, but idk.. please help me out, thank you!!!
128732, RE: knocking sound.. please help!
Posted by RoninEclipse2G, Nov-16-09 04:38 PM
#3 is way low, you should try a wet compression test. If it's shown to be bad piston rings you could be dealing with piston slap caused by bad rings.
128733, RE: knocking sound.. please help!
Posted by Ebster1085, Nov-16-09 05:41 PM
There is always a chance that it is an exhaust manifold leak. It happened to me, and sounded exactly like lifter tick.
128735, RE: knocking sound.. please help!
Posted by 97eclipseRS, Nov-16-09 08:03 PM
yeah i had an exhaust leak due to a cracked gasket at the manifold, but i recently put a tripple plated titanium steal gasket on so its not leaking.. u can feel it inside the engine if you put your hand on it, you feel a knock =/
128736, RE: knocking sound.. please help!
Posted by CODE4, Nov-16-09 08:28 PM
Originally posted by 97eclipseRS
tripple plated titanium steal gasket


What is this?
128737, RE: knocking sound.. please help!
Posted by Ebster1085, Nov-16-09 08:50 PM
x2..what is that??

I was sick of dealing with the shit graphite coated Felpro gaskets so I switched to a stock Mitsu MLS gasket and havent had an issue since.

Piston slap?
128742, RE: knocking sound.. please help!
Posted by 97eclipseRS, Nov-16-09 10:29 PM
let me see if i can find the website i bought it from.. theyre greattt!!! no more leaks at all.. the felpro gaskets just were not holding for me.
128743, RE: knocking sound.. please help!
Posted by 97eclipseRS, Nov-16-09 10:38 PM
couldnt find the exact one i have on. but i found here a 4 layer heavy duty exhaust manifold gasket!!! they are spot welded together and are by far the more durable and wont leak at all!!! and theyre only $18.. i think i paid about $30 for mine.

http://www.roadraceengineering.com/eclturbos.htm

its towards the bottom of the page
128851, RE: knocking sound.. please help!
Posted by grain, Nov-26-09 11:06 AM
do the compression test warm.
128856, RE: knocking sound.. please help!
Posted by CODE4, Nov-26-09 03:38 PM
Originally posted by 97eclipseRS
couldnt find the exact one i have on. but i found here a 4 layer heavy duty exhaust manifold gasket!!! they are spot welded together and are by far the more durable and wont leak at all!!! and theyre only $18.. i think i paid about $30 for mine. http://www.roadraceengineering.com/eclturbos.htm its towards the bottom of the page


That is for a 4G63 motor.

Additionally I was more poking fun of your spelling and use of the words titanium steal. I am assuming you mean steel?

And for those wondering, OEM exhaust gaskets are the MLS style and work great - I have resued them without leaks in favor of the composite style aftermarket. If you can find new MLS gaskets they are great to have.