Z Broke Down :(

cab83_750 · 08-10-2009, 06:02 PM

Quote:

Originally Posted by kannibul

Timing chain? I've thrown one of those before, caused air to pump *out* the intake.

Very easy test...

Also, Aren't these destructive engines?

Hmmmm...... I want to know too. 8+ years ago, the only non-destructive engine was the Toyota. I should probably Google the Z.

davidyan · 08-10-2009, 09:47 PM

Quote:

Originally Posted by cab83_750

Hmmmm...... I want to know too. 8+ years ago, the only non-destructive engine was the Toyota. I should probably Google the Z.

I'd be very concerned if the timing chain broke on a new car even if they replace the engine under warranty. Chains are put in so that there is never any need for servicing (as with a belt).

Also, the only non-interference Toyota engines are the ones without Variable Valve Timing (which come on most older Toyota's and the newer non-performance engines).

Rick_370Z · 08-10-2009, 09:52 PM

Check the oil level. My car with only 3k miles ate 4 qts of oil and the cam position sensor failed from lack of oil. If the sensor fails the ECU thinks the cams are out of phase. Took Nissan 4 weeks to figure this out and get replacement parts for my car.....

just my story, hope its not the same problem to yours

RB

Crash · 08-10-2009, 06:03 PM

Ouch. I was just thinking (reading the first post) that it was timing chain. If nothing internal is messed up and no valves are bent, they should be able to bring her to top dead center, put on the new chain and you should be good to go. But they may pull the motor all together and put in a new one just because it'd be a pain to pull the motor apart to check the internals.

Modshack · 08-10-2009, 06:08 PM

When a chain or belt breaks at speed on an interference engine it's usually sayonara.

Heads and valves at a minimum, often pistons needed too..In a warranty scenario I'd guess they'd just replace the engine..

Let's hope it's not that dramatic!

kannibul · 08-10-2009, 08:17 PM

Quote:

Originally Posted by Modshack

interference engine

That's the term I was wanting...

I imagine at any RPM an interference engine won't be salvagable...at best like you said, a piston or two and a couple valves. At worst, new pistons and new heads.

tstrick9 · 08-10-2009, 06:46 PM

I have not heard of any other engine failures with the 370, has anybody lost one?

Modshack · 08-10-2009, 07:07 PM

Quote:

Originally Posted by tstrick9

I have not heard of any other engine failures with the 370, has anybody lost one?

I think TravisB lost one but it was an installer (oil cooler) issue I believe..

travisjb · 08-10-2009, 09:51 PM

Quote:

Originally Posted by Modshack

I think TravisB lost one but it was an installer (oil cooler) issue I believe..

correct... bad connections on oil cooler... $9K later, all is good

DJcuetip · 08-10-2009, 06:50 PM

damn so sorry to hear, hope its not serious... but hearing this is scary!

m4a1mustang · 08-10-2009, 08:09 PM

Yikes. Let's hope it's an easy fix but sounds like it that isn't the case.

Junior370z · 08-10-2009, 09:29 PM

Man that sucks! I have an ECU tune with a higher rev limit. I hope the chain can handle the high revs.
Have you tried a compression test? No compression usually indicates valves not opening or blows pistons. It's a simple check.
Hope everything works out for you.

travisjb · 08-10-2009, 11:02 PM

interesting rick... what were the symptoms ? check engine light ? any performance related symptoms once the ecu figured out not enough oil ?

Rick_370Z · 08-10-2009, 11:30 PM

Quote:

Originally Posted by travisjb

interesting rick... what were the symptoms ? check engine light ? any performance related symptoms once the ecu figured out not enough oil ?

Symptoms included low grumbling noise from passanger side engine bay. After the lights (all of em) came on the car died on the side of the road. If the ECU thinks the cams are out of phase (bad sensor) the car won't start....safety feature.

travisjb · 08-11-2009, 12:32 AM

okay got it... this ECU is very intrusive... in some ways a good thing... hopefully presented a code that made diagnosis straightforward

08-10-2009, 06:03 PM	#4 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	Ouch. I was just thinking (reading the first post) that it was timing chain. If nothing internal is messed up and no valves are bent, they should be able to bring her to top dead center, put on the new chain and you should be good to go. But they may pull the motor all together and put in a new one just because it'd be a pain to pull the motor apart to check the internals. __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

08-10-2009, 06:08 PM	#5 (permalink)
Modshack A True Z Fanatic Join Date: Mar 2009 Location: Greenville NC Posts: 2,883 Drives: 370Z Sport Rep Power: 977	When a chain or belt breaks at speed on an interference engine it's usually sayonara. Heads and valves at a minimum, often pistons needed too..In a warranty scenario I'd guess they'd just replace the engine.. Let's hope it's not that dramatic! __________________ Steal my car! (SOLD)...Now Porsche Cayman S Oil Cooler DIY: Here!

08-10-2009, 08:09 PM	#11 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	Yikes. Let's hope it's an easy fix but sounds like it that isn't the case. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

08-10-2009, 09:29 PM	#12 (permalink)
Junior370z A True Z Fanatic Join Date: Apr 2009 Location: Las Vegas Age: 50 Posts: 1,024 Drives: over the speed limit Rep Power: 294	Man that sucks! I have an ECU tune with a higher rev limit. I hope the chain can handle the high revs. Have you tried a compression test? No compression usually indicates valves not opening or blows pistons. It's a simple check. Hope everything works out for you. __________________ DON'T DO IT! ( Click to show/hide ) Stillen CBECAI-U/D PulleyGround KitSwaysSetrab Oil CoolerIchiba Rear Camber KitAgility CoiloverBerk HFCTechnosquare TuneGT-R ButtonVenaci MeshSP Performance Cross Drilled/Slotted RotorsSPC Toe BoltsBomex LipMud flapsAero Jacket Type III WingSold

08-10-2009, 11:02 PM	#13 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	interesting rick... what were the symptoms ? check engine light ? any performance related symptoms once the ecu figured out not enough oil ? __________________ 2009 370Z #104 For Sale

08-10-2009, 09:52 PM	#3 (permalink)
Rick_370Z Base Member Join Date: Mar 2009 Location: by the beach Posts: 11 Drives: 2009 370Z Platinum 6 Rep Power: 17	Check the oil level. My car with only 3k miles ate 4 qts of oil and the cam position sensor failed from lack of oil. If the sensor fails the ECU thinks the cams are out of phase. Took Nissan 4 weeks to figure this out and get replacement parts for my car..... just my story, hope its not the same problem to yours RB

08-10-2009, 06:46 PM	#7 (permalink)
tstrick9 Base Member Join Date: Jun 2009 Location: north carolina Posts: 45 Drives: 2003 cobra, 2006 tb Rep Power: 17	I have not heard of any other engine failures with the 370, has anybody lost one?

08-10-2009, 06:50 PM	#10 (permalink)
DJcuetip Track Member Join Date: Dec 2008 Location: CA Posts: 704 Drives: 370 Rep Power: 260	damn so sorry to hear, hope its not serious... but hearing this is scary!

08-11-2009, 12:32 AM	#15 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	okay got it... this ECU is very intrusive... in some ways a good thing... hopefully presented a code that made diagnosis straightforward __________________ 2009 370Z #104 For Sale

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