I think my engine is done

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goob_os101
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I think my engine is done

Post by goob_os101 » Tue Mar 02, 2010 12:08 pm

I came to get an inspection and while in traffic I could hear a hard metal clapping sound above 2500. Shop thnks the engines bad, but not sure what part. Gotta send it in for a diag.

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TRANS4M
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Re: I think my engine is done

Post by TRANS4M » Tue Mar 02, 2010 12:51 pm

ouch!

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complacent
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Re: I think my engine is done

Post by complacent » Tue Mar 02, 2010 1:01 pm

damn, that sucks!

*crosses fingers for good results*
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zaxrex
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Re: I think my engine is done

Post by zaxrex » Tue Mar 02, 2010 1:12 pm

Yeesh. Hope it is just something like a heat shield or crank pulley or something like that.
Patience is the ability to idle your motor when you feel like stripping your gears

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Sabre
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Re: I think my engine is done

Post by Sabre » Tue Mar 02, 2010 1:15 pm

Agreed, could be a lot of things. I wouldn't worry.... yet. Get a shop to do a leak down / compression test and maybe even drain the oil or pull the oil pan.
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Re: I think my engine is done

Post by goob_os101 » Tue Mar 02, 2010 1:17 pm

I always wanted and sti engine, but not so soon.

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Re: I think my engine is done

Post by goob_os101 » Tue Mar 02, 2010 3:16 pm

I now think(hope) it is the header lose and vibrating. It only makes the sound (heavy metal and somewhat hollow) at 2500-3000rpm after that it tapers away. I put in 4th and hit 10psi and no sound. :popcorn: I am gonna go to Ft Myer's hobby shop tomorrow and throw her up on the lift and see if any piping is lose.

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zaxrex
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Re: I think my engine is done

Post by zaxrex » Tue Mar 02, 2010 7:28 pm

If you want to give it a shot, I'm pretty good at identifying header sounds. You could stop by and I could lend an ear, but with lift access so easy, it might be just as easy to go right to the source.
Patience is the ability to idle your motor when you feel like stripping your gears

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Re: I think my engine is done

Post by goob_os101 » Tue Mar 02, 2010 10:51 pm

where snd when

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zaxrex
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Re: I think my engine is done

Post by zaxrex » Wed Mar 03, 2010 9:40 am

I'm working up near Connecticut and 18th if you want during the day.
I'm at home near Edsal and Van Dorn in Alexandria in the evenings.
Heading out Fri for the weekend and have hockey Mon and Tue.
Patience is the ability to idle your motor when you feel like stripping your gears

goob_os101
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Re: I think my engine is done

Post by goob_os101 » Wed Mar 03, 2010 11:19 am

What time do you get home from work? I work near Kingstowne and take Van dorn home

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zaxrex
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Re: I think my engine is done

Post by zaxrex » Wed Mar 03, 2010 3:49 pm

Well hell, then you can pick me up at Van Dorn Metro. That will be a nice change from the bus. I can be at the station any time after ~ 5:15. Maybe PM me with your number and we can coordinate?
Patience is the ability to idle your motor when you feel like stripping your gears

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Re: I think my engine is done

Post by goob_os101 » Wed Mar 03, 2010 4:19 pm

see you there at 5:15

my cell: XXX-YYY-ZZZZ

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complacent
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Re: I think my engine is done

Post by complacent » Wed Mar 03, 2010 4:26 pm

goob_os101 wrote:see you there at 5:15

my cell: XXX-YYY-ZZZZ
expect prank calls at 0100, 0200, 0315 and 0445.

:lol: :poke:

Seriously, the interwebz are a scary place. Keep personal info to PM's plz. kthxbai.
:lol:
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Re: I think my engine is done

Post by Sabre » Wed Mar 03, 2010 4:31 pm

:rolllaugh: :rolllaugh: :rolllaugh:
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zaxrex
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Re: I think my engine is done

Post by zaxrex » Wed Mar 03, 2010 7:00 pm

Well, not the exhaust manifold... :(. Large metallic clacking noise, not a simple rattle.
Only happens off load, not under acceleration.
Stuffed a 2x4 and moved the block around and the noise was still there.
Louder below the car than above, drivers' side more than pax.
Happens with trans in and out of gear, clutch in or out.

I'm stumped
Patience is the ability to idle your motor when you feel like stripping your gears

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Sabre
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Re: I think my engine is done

Post by Sabre » Wed Mar 03, 2010 9:21 pm

I'm not sure either with that description :( Bringing it to the meet on Monday?
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Re: I think my engine is done

Post by goob_os101 » Thu Mar 04, 2010 9:44 am

if it survives until then. :puke:

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Re: I think my engine is done

Post by avriette » Thu Mar 04, 2010 9:49 pm

zaxrex wrote:Well, not the exhaust manifold... :(. Large metallic clacking noise, not a simple rattle.
Only happens off load, not under acceleration.
Stuffed a 2x4 and moved the block around and the noise was still there.
Louder below the car than above, drivers' side more than pax.
Happens with trans in and out of gear, clutch in or out.

I'm stumped

My suggestion would be either the manifold itself being warped from spending too much time hot. Is there a way there can be a gasket that's got leakage on the turbine or the driver's side of the exhaust mani or other hot-side stuff? I don't know whether the car has an exhaust manifold gasket. Gabe said he's making full boost? And the sound is transient between 2500-3500? Might be a warped manifold or bolt. That would certainly behave like that (have a "period" when it's more clanky, and a larger period where it's happier; but it could be reversed, depending on how out-of-whack it was).

It doesn't sound like engine. Zak, it doesn't seem like a valve train clatter? It would be easier if I could hear it, but I'm going to be pretty limited on that.

Good news is, Gabe, that you probably don't have a busticated engine. Unless it's a sly and really angry gremlin (and they do exist, they're rare, but tres expensive and equally sneaky).
rocket scientist

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zaxrex
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Re: I think my engine is done

Post by zaxrex » Thu Mar 04, 2010 11:33 pm

The real Gabe has other noise issues, this Jeremy has the engine noise...
It is def not an exhaust leak. Though with one of the six exhaust manifold studs not taking a nut, I don't see how he doesn't have a leak.

When putting the 2x4 between the driver's side valve cap and the frame rail, I could "feel" the noise through the plank of wood. Also when putting the 2x4 to my ear/jaw bone it was quite noticeable.

I'm thinking a valve lifter or shim at the worst.
Patience is the ability to idle your motor when you feel like stripping your gears

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Mr Kleen
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Re: I think my engine is done

Post by Mr Kleen » Fri Mar 05, 2010 12:20 am

all I got is a clunky rear suspension. :nana:

goob_os101
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Re: I think my engine is done

Post by goob_os101 » Fri Mar 05, 2010 9:16 am

could be the belt tensioner:
http://www.youtube.com/watch?v=UmZ1F8V8pc8&NR=1[/video]

or loose pulley (0:46 on):
http://www.youtube.com/watch?v=WytguVRSIMg[/video]

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zaxrex
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Re: I think my engine is done

Post by zaxrex » Fri Mar 05, 2010 11:33 am

Might be, here's to hoping.
Patience is the ability to idle your motor when you feel like stripping your gears

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Re: I think my engine is done

Post by goob_os101 » Fri Mar 05, 2010 12:44 pm

now I have my doubts...it maybe the rod bearing starving of oil at those specific rpms

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Sabre
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Re: I think my engine is done

Post by Sabre » Fri Mar 05, 2010 3:06 pm

I've never heard of rod bearing's being starved at specific RPMs', but I could be wrong. We'll take a listen on Monday :)
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Good choice putting $4,000 rims on your 1990 Honda Civic. That's like Betty White going out and getting her tits done.

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