Got rear ended, then blew my motor. Kill me.

LaserSVT

LaserSVT

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So today was final tune day at teh dyno! Yay! :wrench

So on my way down to the dyno shop I stopped for some lunch and to wipe the bugs off the nose of the car. I had it nosed into a stall and I was sitting on the curb happily cleaning away when all the sudden the car lurched forward and knocked me off the curb. It was running soo I thought it slipped into gear....... nope, nice big ass Suburban has her rear bumper pressed into mine. :mad:
So I jump up like a raving lunatic and scream *cleaned up for here* "Cant any of you mother f'rs drive? How many of you fuggin c-words are gonna hit my rear fuggin bumper this year? AHHHHHHHHHHHHHHHHHHHHHHHHHH!!!!!!!!!!!!!!!!!!!!"
I wanted to punch her in her face but she broke down into tears.
So she gets her info and I inspect the damage. Her bumper is bent and mine is....... nothing. Scuff rubbed off with my finger and there is a slight scratch but only in the clear and will buff right out. I tell her ill fix it and give me $100. She is still crying and saying how nice of a car it is and her husband is particular about his and she feels so bad and yada yada yada. She then gives me $200. Ok, cool, bye.

So on I go to Gear Heads for my tune. Takes several hours, gets run a half dozen times and Mark was there to film. Car lays down some bummer numbers. 299rwhp and 309rwtq. :( So he wants to tweak some more and I am all for it...... except when its there idling its making this faint knocking sound...... I ask "Is that rod knock?" and get a shrug from Mark (Twinbipo) and a "I don't think so" from Andy the tuner.
So we hammer on it some more and she sounds great, no hint of noise and she does her best of 316rwhp and 307rwtq. 300tq comes on at 2500 and stays flat till red-line. 14* of timing and IATs around 198* at full tilt. Shes safe and sound........ but at idle the sound is still there. :(

Here was the last run:

YouTube- 7.2psi Mark Dyno run

We take it on a test drive and she runs prefect but when we get back and shes idling the sound is a little louder. So I drive it 2 hours home and for the most part take it easy. I WOT a few times and its seemingly faster at 316rwhp then it was at 384rwhp..... yeah, weird.
So I stop by a friends house and he says "Yo, whats wrong with your car?" and the sound is much louder. I am thinking blower just blew a bearing or something. Time for a rebuild, figures. :(
So I get home and am curious and poke around and man does it sound AWFUL!!! And it does sound like the blower. I remove the belt and start it up again and nope.... the sound is there still....... gotta be rods or bearings. :( :cry:
I am seriously screwed. I cant buy a new engine right now. I know I took a risk but who the hell has no issues at too much boost and then tunes to be safe only to break it under the safer tune? Me! Thats who!
I have a friend that always asks me if I ever think of eating a bullet. I always laugh it off. I ain't laughing now. :mad:


Heres the sound:

YouTube- Rod knock?
 
Oh :q:q:q:q bro, clam down, take it easy...I'll call my dad tomorrow and I'll find you a motor, there's got to be some in Austin...we can drop you a salvage motor and just run it for a bit while we gather some internals for yours...yay a motor build..you wanted to do it anyway..just looks like sooner than financialy planned.

You know you like gettin new stuffs for the Mark in the mail anyway..it looks great for your progress thread that has so much popularity anyway..:-)
think possitive...or just go have a safety meeting
 
Yep, sounds like rod bearing to me. Stop running the engine, if it blows it could ruin the block. Take it apart and buy some forged internals for it.

Btw. I have a set of forged pistons for sale.
 
Dude, that SUCKS!!!

Honestly though, that doesn't sound like rod knock. First off it's too fast (how high is the idle?), usually the knock is in-sync with the motor rpm. Your's sounds different. Is the knock still there even if you rev it?
 
damn that sucks you seem to have the worst luck on here. at least the bumper was not beat up so bad. if your luckly you could fine a cheap mark moter and take the parts you need form there and swap them into yours. anyways sry to hear about this and the best of luck to u fixing it.:(
 
Yeah, he knows motors, he knows not to drive it....we can't rebuild if there's a hole in the block...he knows this...or at least he better
 
Thanks buddy. I am really beyond depressed right now. I thought for sure when I removed the belt the sound would go away cause a bearing in some accessory failed but when it didnt.......... ya know that red handled hammer on the bench? I almost "Ripped Cameled" the car. :(
And I have no money for a motor untill after the 1st anyway. THEN SVO aint returning calls and I dont have a cherry picker and my carports beam cant support a chain setup.

I feel so dumb for doing this blower. It was planned and executed when I had a job, this layoff really screws me.

I hate life.
 
PayUpSuka said:
Dude, that SUCKS!!!

Honestly though, that doesn't sound like rod knock. First off it's too fast (how high is the idle?), usually the knock is in-sync with the motor rpm. Your's sounds different. Is the knock still there even if you rev it?
Click to expand...
Idle is around 1150. For some reason the new IAC cant command less then that even at the uber low DC its set at now. So thats a whole other issue. The sound does change in freequency with the RPM but once you hit 2000 its gone and if there is any load its gone. Cant hear it while cruising as well. Only when you come to a stop.
I need another set of ears out here but I am sure shes done for.

Since that sound started she has been driven over 200 miles and bounced off the rev limiter twice and pushed to 6500RPM more then 2 dozen times. So who knows. I am in the boonies and have no other car. If I have to go somewhere I will take it and if it goes boom then so be it. One of you will buy it and ill buy a fuggin Accord.
 
MercuryLs said:
Yep, sounds like rod bearing to me. Stop running the engine, if it blows it could ruin the block. Take it apart and buy some forged internals for it.

Btw. I have a set of forged pistons for sale.
Click to expand...
Hearing you say that makes me sad cause I know its the truth you speak. You have been down this road already, havent you? :(
 
LaserSVT said:
Idle is around 1150. For some reason the new IAC cant command less then that even at the uber low DC its set at now. So thats a whole other issue. The sound does change in freequency with the RPM but once you hit 2000 its gone and if there is any load its gone. Cant hear it while cruising as well. Only when you come to a stop.
I need another set of ears out here but I am sure shes done for.

Since that sound started she has been driven over 200 miles and bounced off the rev limiter twice and pushed to 6500RPM more then 2 dozen times. So who knows. I am in the boonies and have no other car. If I have to go somewhere I will take it and if it goes boom then so be it. One of you will buy it and ill buy a fuggin Accord.
Click to expand...

Hmm, really weird. I don't think it's a RB problem. I'd check the oil, maybe see if you have any medal in there. I think something is wrong but not a RB problem. Especially if you pushed it recently and driven those amount of miles.
 
Wish I could read oil pressure. I was thinking that maybe the oil pumps plastic gears were eating away.

Oil was just changed 600 miles ago, maybe less. Its still clean on the dipstick and no milkshake. Car ran at 212* all the way home too.
The car has ALWAYS had a slight clatter when first accelerating. Stock tune, new tune, tune with timing pulled WAY the freak back so I knew it was timing chain adjusters. I doubt it but I guess there is a slight chance that is what it is and the chain is slapping when unloaded and when I load the engine the chain tightens so it dont slap. But really, this is me we are talking about. I am sure its whatever is worse.
 
Well to really tell if it's RB's, you need to be under the car while it's running and hear if the sound is coming from in the pan.

Can you put the stock tune on and unplug the IAC motor and see if it'll idle lower? From the video is sounds like a valve train issue (like you said). It could be the timing chains stretched and when at idle/low rpm they become slack and bang around. But WOT and cruising (2k+ rpm), she's fine.

I'm really rooting for you this isn't a serious motor issue.
 
The IAC issue is it being a cheapo partstore one instead of OEM. I aint worried about that. I can put a restriction in its line and get the idle right or I can swap the IAC for a new OEM one which will prolly happen as I swap the motor out.

For chits and giggles I just went out there now that its cooled down and started it. Noise is there but MUCH quieter. IDK what that meens but I am sure one of you gurus can tell me.
 
The only other guy on this site that trumps my bad luck with their Mark VIII. Sucks man...I hope your luck gets better...
 
ripped camel said:
The only other guy on this site that trumps my bad luck with their Mark VIII. Sucks man...I hope your luck gets better...
Click to expand...
Thanks for the well wishes but my luck will never get better. Its karma.

I help others, give without expecting reward, always there for a friend, am honest to a fault, hell just a couple weeks ago I changed a tire for some random old dude in the Walmart parking lot. He had to be in his late 70's and it was 99* out. Not one person stopped to..... I digress, anyway I am a dick though. Im a smart ass and piss people off. My cosmic punishment is to keep getting raped.
 
here is 100,000 internet dollars for your troubles, that should cover everything! and you get a date with baxxy if you are familiar with 4chan!
 
Bill, I just don't know what to say about your luck, seriously.... what do you say?

You need a personalized plate that says "KICK ME"

Anyway, I think your secondary chain tensioners might need replacing but it wouldn't hurt to just do all four of them (I think there's four) and don't replace the entire engine. I guess it might be one of those things where someone would have to be right there to really hear the sound. Let Sapp hear it and see what he thinks. Lose some RWHP and add to the timing and see if that helps. Blower = whine and that should be good enough. -14* on the timing might be giving a bit too much slack at idle. I think within 2 days, this noise issue will be diagnosed as something fairly simple, I hope so anyway.

The joys of modding. :p 120 xanax that I get per month wouldn't be enough for my nerves for modding. Plus I might blow up something.
 
Good luck, i love the look of that car. If it makes you feel better today a big wooden door swung into my bumper lol...
 
Sorry to hear this Laser. My green Mark engine started ticking for no reason also, I didn't have the time or money to mess with it, so I replaced it with a parts car engine. This car always had a horrible chain tensioner rattle at start up.

I'm guessing mine (and maybe yours) is tensioner related. I'm not sure if just replacing all the tensioners is worth it as the chains might need replacing also.

I'll be tearing mine apart just to find out what it is.
 
Laser, I really wouldn't be suprised if it is a top end problem. Take a long screwdriver or something and put your ear to the valve covers on each side. My first mark made a sound like that and it was the secondary chain tensioner. Your timing doesnt have anything to do physically with how the chains move, you are only changine spark timing. I know most know this, but got the idea that some people were thinking that the cams were physically advanced or retarded. I'm sure it has nothing at all to do with your tune. Good luck man. And I don't think its kharma, I think your a pretty cool guy, you crack jokes and screw with people but I always just kinda figured it was all in fun. Let us know what you find. Good Luck.
 
That sucks man... Worst case scenario save your money and find you a used low-mile cobra engine.

Then park that thing in your bedroom and never drive it again! Re-enforce your room with 1ft. thick steel in case your house falls under attack, whether it be a giant tree, or WWIII... and you're good to go!

I suppose we'll be seeing a new build thread now. Heck, if you gotta do it, make it bigger, stronger, and faster. ;)
 
Like said above but take a hose maybe like a water hose and listen for the niose. Just do a regular check- oil/metal-compression/make sure all 8 are running. Idle u can turn the idle manually/ there should be a set screw if u don't mind doing that for the mean time. Dam bro dam the luck. Atleast ur lucks better then the one legged man going to buy some air jordans. U can find a used motor for cheap or a cobra block.
 
LaserSVT said:
Thanks for the well wishes but my luck will never get better. Its karma.

I help others, give without expecting reward, always there for a friend, am honest to a fault, hell just a couple weeks ago I changed a tire for some random old dude in the Walmart parking lot. He had to be in his late 70's and it was 99* out. Not one person stopped to..... I digress, anyway I am a dick though. Im a smart ass and piss people off.
Click to expand...

I hear ya brother...that's why I unleashed on the valve cover. First time in 10 years I broke something out of anger. $8,000 into this car in one year and it still isn't running right...in fact it runs way worse than when I bought it.

Just try to keep your head up because negativity begets negativity and vise versa. So try to be positive to attract more positivity. Hang in there
 
fukk laser, i agree with nolimit you need a kick me plate, or maybe fukk me. man if it wasnt for bad luck youd have no luck at all
 
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