SVX Network Forums Live Chat! SVX or Subaru Links Old Lockers Photo Post How-To Documents Message Archive SVX Shop Search |
IRC users: |
#1
|
||||
|
||||
svx sounds diesel
when i listen under the car near the belts and oil pan there is a loud knocking and it almost sounds like its diesel.... is this normal??
|
#2
|
||||
|
||||
No its not normal.
__________________
Down to none |
#3
|
||||
|
||||
Re: svx sounds diesel
yes i know, an old thread bump....
i was looking to see if anyone else had a svx that sounded like a diesel when it was running. keep in mind this is my first svx but not my first boxer engine (H4 or H6) so i know what they typically sound like. comparing it to the videos on youtube i cant what is causing mine to sound as loud as it does. here are some of the ones i found to compare Idle video 1 idle video 2 i plan on taking a video of mine and posting it up here
__________________
1994 SVX LSi JDM Tailbar and Grill, Clear Corners, 15min-mod, Nevin Blue RSB, G-FORCE SPORT COMP-2 Tires, Phenolic Spacers (Manifold & Throttle Body), SS Brake Lines, Maniac Electric Motors 160A Alternator 2008 Legacy 3.0R |
#4
|
||||
|
||||
Re: svx sounds diesel
Mine sounds a little dieslish now. Mainly due to neglect, hope it will be creamy smooth again when the engine is pulled and overhauled.
__________________
I got my girl, I got my glass, I got my car and I'm ready to f... |
#5
|
||||
|
||||
Re: svx sounds diesel
the loud deep thumping is rod bearings that are quite worn from neglect slamming about...
|
#6
|
|||
|
|||
Re: svx sounds diesel
I agree with Jake that its rod bearings but I also think its an oiling problem because my car only does it sometimes.
__________________
1992 SVX Pearlie: AmsOil signature synthetic 10w40 and Ea15k20 filter, Cobb crank pulley, Outlaw Engineering spacers and tb bypass, LGT 5spd, Slotted Crossdrilled rotors and ceramic pads, 11:1 compression, EGR delete, Port & Polished heads, SaikoMichi catch can, A/c delete. |
#7
|
||||
|
||||
Re: svx sounds diesel
PO used mobile one synthetic 5w-30 and I followed with that since ive had the car. i dont recall a difference in the loudness after any changes however
__________________
1994 SVX LSi JDM Tailbar and Grill, Clear Corners, 15min-mod, Nevin Blue RSB, G-FORCE SPORT COMP-2 Tires, Phenolic Spacers (Manifold & Throttle Body), SS Brake Lines, Maniac Electric Motors 160A Alternator 2008 Legacy 3.0R |
#8
|
|||
|
|||
Re: svx sounds diesel
The harmonic balancer will make a loud knocking sound if it is not tight.
Harvey.
__________________
One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. |
#9
|
||||
|
||||
Re: svx sounds diesel
I personally don't have anything I would call a rocking sound. Just a bit farm machinery like when I start up.
__________________
I got my girl, I got my glass, I got my car and I'm ready to f... |
#10
|
||||
|
||||
Re: svx sounds diesel
__________________
1994 SVX LSi JDM Tailbar and Grill, Clear Corners, 15min-mod, Nevin Blue RSB, G-FORCE SPORT COMP-2 Tires, Phenolic Spacers (Manifold & Throttle Body), SS Brake Lines, Maniac Electric Motors 160A Alternator 2008 Legacy 3.0R |
#11
|
|||
|
|||
Re: svx sounds diesel
wow, that is much different than i imagined. Im torn though because something on that engine is messed up but at the same time diesel rumble is kinda cool.
Pull the timing covers, i wonder if theres a pulley in there thats going bad and rubbing something.
__________________
1992 SVX Pearlie: AmsOil signature synthetic 10w40 and Ea15k20 filter, Cobb crank pulley, Outlaw Engineering spacers and tb bypass, LGT 5spd, Slotted Crossdrilled rotors and ceramic pads, 11:1 compression, EGR delete, Port & Polished heads, SaikoMichi catch can, A/c delete. |
#12
|
||||
|
||||
Re: svx sounds diesel
i would take a nice purr over that noise. the driver side timing cover is already somewhat cracked at the screw so who knows what it looks like back there.
__________________
1994 SVX LSi JDM Tailbar and Grill, Clear Corners, 15min-mod, Nevin Blue RSB, G-FORCE SPORT COMP-2 Tires, Phenolic Spacers (Manifold & Throttle Body), SS Brake Lines, Maniac Electric Motors 160A Alternator 2008 Legacy 3.0R |
#13
|
|||
|
|||
Re: svx sounds diesel
I just tried to listen very carefully mine. With an engineers stethoscope and w/o. Then did the same for the 2006 3.0R Outback. What a difference.
The 3.0R is silky smooth - there's not much anything but a constant whizz even with the stethoscope.... by far the loudest part is the power steering pump. The EG33 sounds "harsh", not "wrong" to the ear - I can hear the individual injectors tick and some general rumble. With the stethoscope there's a whole cacophony of mechanical clicketi-clack... slight in the head castings, some more from the block... by far the loudest at the cylinder #6 (drivers side, rear) - right where the piston/cylinder is - a bit less at the block split joint. Very, very different from the EZ30R. I need to replace my head gaskets and I am trying to decide whether to do the rod bearings while engine is out. Removing the pistons is a PITA and splitting the casings does expand the project quite a bit. 130kmiles, 5PSI turbo charged. I have ever heard only one other SVX engine running and it did appear to run smoother on idle. Didn't pay much attention, though. theflystyle: There are two different type sounds in yours... like a diesel injector/combustion sound - and then a single much lower knock - big end, burned valve? Did you have your AC compressor running in the video? Hmmm..... Tapani Last edited by Tapani; 04-30-2013 at 12:30 PM. |
#14
|
||||
|
||||
Re: svx sounds diesel
^ I fully agree with your comparison to the 3.0R. Night and day difference, sometimes I cant even tell its running at idle.
I did not have the AC running in the video, and that was after a 30 minute drive so the car was nice and warm. I am still getting some small drips of oil even after changing the valve covers. The headgasket was also recently changed and is not dripping as well. Its coming from further back
__________________
1994 SVX LSi JDM Tailbar and Grill, Clear Corners, 15min-mod, Nevin Blue RSB, G-FORCE SPORT COMP-2 Tires, Phenolic Spacers (Manifold & Throttle Body), SS Brake Lines, Maniac Electric Motors 160A Alternator 2008 Legacy 3.0R |
#15
|
||||
|
||||
Re: svx sounds diesel
Quote:
__________________
Tony 1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads 2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil 2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil 1992 Red Ferrari 348 ts, 82,XXX, Redline everything |
|
|