engine virbration - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Options13 · 08-28-2008, 08:43 PM

alright well i rebuilt the ka24e in my 240sx, and it seems to shake alot, i don't know if its the motor mounts, but it shakes alot, it is running on all 4 cylinders, as you can tell by the sound, and it is timed right, plus it doesn't backfire or anything..

it just shakes alot..

also one thing i may include is i am using an a/t ECU, may that be the problem?

the engine only shakes during idle, then gets smooth when i rev it.. hmmm

rb25_s13*CHUKI · 08-29-2008, 04:27 AM

Looks pretty damn smooth to me

let5l1de · 08-29-2008, 12:40 PM

so many variables to diagnose when its just a rough idling engine.

Do a complete tune-up. Plugs, wires, cap, rotor, air/fuel filter, timing.
check all vacuum hoses and replace or fix as needed
Dirty Throttle body (clean with a dirt free rag and card cleaner)
IACV plugged or faulty (clean with a dirt free rag and card cleaner)
egr valve and or egr system dirty or malfunctioning. (clean with a dirt free rag and card cleaner)
possibly the motor or transmission mounts are going bad or too soft. (needs new parts)
exhaust system is obstructed at any point, manifold, cat, or muffler (needs new parts)

anyone feel free to add to this.

glw diagnosing.

EDacIouSX · 08-29-2008, 12:57 PM

5 bux says you need mounts.

koukimonster139 · 08-29-2008, 01:23 PM

did it shake alot before

maybe you used the wrong bearings in the engine lololol that would sucks

Mikey88 · 08-29-2008, 01:28 PM

+1 for mounts as well

08-28-2008, 08:43 PM	#1
Options13 Nissanaholic! Join Date: May 2007 Location: OR Posts: 1,825 Trader Rating: (43) Feedback Score: 43 reviews	engine virbration alright well i rebuilt the ka24e in my 240sx, and it seems to shake alot, i don't know if its the motor mounts, but it shakes alot, it is running on all 4 cylinders, as you can tell by the sound, and it is timed right, plus it doesn't backfire or anything.. it just shakes alot.. also one thing i may include is i am using an a/t ECU, may that be the problem? the engine only shakes during idle, then gets smooth when i rev it.. hmmm

08-29-2008, 04:27 AM	#2
rb25_s13*CHUKI Post Whore! Join Date: Mar 2007 Location: Cali Age: 32 Posts: 2,759 Trader Rating: (16) Feedback Score: 16 reviews	Looks pretty damn smooth to me __________________ Obliterate

08-29-2008, 12:40 PM	#3
let5l1de Zilvia FREAK! Join Date: Dec 2007 Location: 626DRIFT, ca Posts: 1,420 Trader Rating: (30) Rides Gallery: let5l1de Feedback Score: 30 reviews	so many variables to diagnose when its just a rough idling engine. Do a complete tune-up. Plugs, wires, cap, rotor, air/fuel filter, timing. check all vacuum hoses and replace or fix as needed Dirty Throttle body (clean with a dirt free rag and card cleaner) IACV plugged or faulty (clean with a dirt free rag and card cleaner) egr valve and or egr system dirty or malfunctioning. (clean with a dirt free rag and card cleaner) possibly the motor or transmission mounts are going bad or too soft. (needs new parts) exhaust system is obstructed at any point, manifold, cat, or muffler (needs new parts) anyone feel free to add to this. glw diagnosing. __________________ GR Performance facebook Pics & More! Comments! http://www.facebook.com/pages/GR-Performance/120477531339202 Read My Sales Review 626 Friday Nights San Gabriel

08-29-2008, 01:23 PM	#5
koukimonster139 Zilvia FREAK! Join Date: Jan 2006 Location: Birmingham, AL Age: 34 Posts: 1,379 Trader Rating: (0) Feedback Score: 0 reviews	did it shake alot before maybe you used the wrong bearings in the engine lololol that would sucks __________________ ho ha ho chi chi

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

08-29-2008, 12:57 PM	#4
EDacIouSX Post Whore! Join Date: Nov 2004 Location: Los Angeles Age: 35 Posts: 4,527 Trader Rating: (53) Rides Gallery: EDacIouSX Feedback Score: 53 reviews	5 bux says you need mounts.

08-29-2008, 01:28 PM	#6
Mikey88 Zilvia Member Join Date: Jul 2008 Location: Somewhere in California Age: 33 Posts: 229 Trader Rating: (0) Feedback Score: 0 reviews	+1 for mounts as well