My newest car part - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

1GoZoom · 03-24-2011, 12:53 AM

New exhaust headers showed up today. Old rear bank header had a clogged catalyst in the precat section just below the pipes. Caused a spun bearing in my motor.

New headers are Nautilus Performance Shorty headers with an MSDS collector and axle bend and a flex pipe. No cats!!!!! Going to run it like that for a few days with a dumped midpipe until my straight piping arrives. Then I'm cutting the exhaust at the collector and running duals straight back with two Vibrant resonators and a Magnaflow X-pipe before ending with angle cut tips akin to an old Mustang or Camaro. Mazda Muscle.

OLD EXHAUST (not my pic btw)

NEW EXHAUST (my living room as well)

ichitaka05 · 03-24-2011, 12:57 AM

Look sweet! That's sucks that it spun the bearing. Are you planning to do some internal mods (pistons, crank, etc) while fixing the bearing or just keep it OEM? Also if you make it catless isn't gonna pull a CEL? Also hope you don't have white Mazda6 cuz it will make your rear bumper yellow

I'm guessing you have welding machine to do all those things... I envy you

NESW20 · 03-24-2011, 01:25 AM

please explain how your exhaust caused a spun bearing.

1GoZoom · 03-28-2011, 10:40 AM

Alrighty. No I don't have a welder but have access to a good garage. Internals are already built up somewhat. The motor came stock with forged bits, but I upgraded bearings and rods so that this won't happen again. Also using a better oiling system to prevent the issue.

CEL is fine. I'm using an o2 simulator and most of the time, these don't throw the CEL anyway. The PCM on these cars are finicky. Some people throw codes, some don't. lol. She's blue btw.

1GoZoom · 03-28-2011, 10:52 AM

Quote:

Originally Posted by NESW20

please explain how your exhaust caused a spun bearing.

No prob. The design of the OEM headers as you can see left the catalytic converter VERY close to the exhaust port. When I bought the car, I didn't know the spark plugs were in as bad of shape as they were. I was told they were new, yet there were no side or center electrodes left on 2. How they managed to last any length of time is beyond me. Anyway, the fuel didn't always ignite in the cylinder, but would ignite in the converter. That melted the converter, destroying the ceramic material inside. It essentially clogged up and did two things. It wouldn't let gases escape as easily, so the engine got hotter. It also allowed some material to escape back into the engine via backpressure. Idk specifics, but it made it into my oil and somewhat clogged my sump as well, leading to spun bearings and a cracked rod. Its been 6 months since she's been on the road. I've been broke. So far I have 2200 in the motor and 1000 in the headers. junkyard longblock with Clevite77 main and rod bearings, Caprillo rods, and a crank kit. Ugh. lol.

1GoZoom · 03-28-2011, 10:55 AM

Here are those plugs.

#87 · 03-28-2011, 01:02 PM

How many miles on that car or what spark plugs? Those shits are fucked lol

1GoZoom · 03-28-2011, 01:14 PM

They CLAIMED when i took it in for service that the plugs were nearly new. Me being dumb assumed the stealership had checked. nope. Unfortunately, I didn't have them saying that in writing so i was fucked when the motor went kaboom. It has 124k miles and I'm pretty sure those were the ORIGINAL plugs. Haha. i only put 5k miles on it since buying it. Its been sitting 6 out of the 8 months I've owned it.

BoostJunkie · 03-29-2011, 08:12 AM

Nice, the water pump went out on the soup, so I took the time to upgrade to electrical water pump and electric fans, and some other Lil cooling goodies!

1GoZoom · 03-29-2011, 01:18 PM

That is one nice looking car. Here is what I'm saving for right now.

http://www.npg-racing.com/SuperCharg...duct_info.html

Midship Runabout · 03-29-2011, 03:26 PM

Quote:

Originally Posted by 1GoZoom

No prob. The design of the OEM headers as you can see left the catalytic converter VERY close to the exhaust port. When I bought the car, I didn't know the spark plugs were in as bad of shape as they were. I was told they were new, yet there were no side or center electrodes left on 2. How they managed to last any length of time is beyond me. Anyway, the fuel didn't always ignite in the cylinder, but would ignite in the converter. That melted the converter, destroying the ceramic material inside. It essentially clogged up and did two things. It wouldn't let gases escape as easily, so the engine got hotter. It also allowed some material to escape back into the engine via backpressure. Idk specifics, but it made it into my oil and somewhat clogged my sump as well, leading to spun bearings and a cracked rod. Its been 6 months since she's been on the road. I've been broke. So far I have 2200 in the motor and 1000 in the headers. junkyard longblock with Clevite77 main and rod bearings, Caprillo rods, and a crank kit. Ugh. lol.

Uh I'm not so sure on this.

NESW20 · 03-29-2011, 03:57 PM

there should have been multiple DTCs stored and the CEL illuminated, possibly flashing.

RRnold · 03-29-2011, 04:16 PM

It guess this qualifies as a common problem with Ford... I mean Mazda 6's

http://forum.mazda6club.com/engine-d...e-problem.html

BoostJunkie · 03-29-2011, 06:50 PM

Quote:

Originally Posted by 1GoZoom

That is one nice looking car. Here is what I'm saving for right now.

http://www.npg-racing.com/SuperCharg...duct_info.html

Nice, I wish my new setup was under 5k! But that should pull hard for ya

03-24-2011, 12:53 AM	#1
1GoZoom Mazda and Ecotec Owner Join Date: Mar 2011 Drives: 2004 Mazda 6S Location: Southeast Ohio Posts: 102 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	My newest car part New exhaust headers showed up today. Old rear bank header had a clogged catalyst in the precat section just below the pipes. Caused a spun bearing in my motor. New headers are Nautilus Performance Shorty headers with an MSDS collector and axle bend and a flex pipe. No cats!!!!! Going to run it like that for a few days with a dumped midpipe until my straight piping arrives. Then I'm cutting the exhaust at the collector and running duals straight back with two Vibrant resonators and a Magnaflow X-pipe before ending with angle cut tips akin to an old Mustang or Camaro. Mazda Muscle. OLD EXHAUST (not my pic btw) NEW EXHAUST (my living room as well) __________________ 2004 Mazda6S MTX 2006 Saturn Ion 2.4L "Sport" MTX

03-24-2011, 12:57 AM	#2
ichitaka05 Site Moderator Join Date: Oct 2009 Drives: ichi 86 Project Location: Middle of No where Posts: 20,975 Thanks: 7,672 Thanked 19,094 Times in 8,333 Posts Mentioned: 678 Post(s) Tagged: 27 Thread(s)	Look sweet! That's sucks that it spun the bearing. Are you planning to do some internal mods (pistons, crank, etc) while fixing the bearing or just keep it OEM? Also if you make it catless isn't gonna pull a CEL? Also hope you don't have white Mazda6 cuz it will make your rear bumper yellow I'm guessing you have welding machine to do all those things... I envy you __________________

03-24-2011, 01:25 AM	#3
NESW20 2.1L 3SGTE Join Date: Oct 2009 Drives: MR2 Turbo & Tacoma Location: Columbus, IN Posts: 1,248 Thanks: 29 Thanked 24 Times in 22 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	please explain how your exhaust caused a spun bearing. __________________ 1991 MR2 Turbo - 2.1L high compression stroker 3SGTE 2006 Tacoma 4x4 TRD Off Road - All-Pro front bumper, Old Man Emu shocks, Old Man Emu HD front coils, All-Pro leafs 1990 240SX Coupe - sold 2008 Civic Si Sedan

03-28-2011, 10:40 AM	#4
1GoZoom Mazda and Ecotec Owner Join Date: Mar 2011 Drives: 2004 Mazda 6S Location: Southeast Ohio Posts: 102 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Alrighty. No I don't have a welder but have access to a good garage. Internals are already built up somewhat. The motor came stock with forged bits, but I upgraded bearings and rods so that this won't happen again. Also using a better oiling system to prevent the issue. CEL is fine. I'm using an o2 simulator and most of the time, these don't throw the CEL anyway. The PCM on these cars are finicky. Some people throw codes, some don't. lol. She's blue btw. __________________ 2004 Mazda6S MTX 2006 Saturn Ion 2.4L "Sport" MTX Last edited by 1GoZoom; 03-28-2011 at 10:53 AM.

03-28-2011, 10:55 AM	#6
1GoZoom Mazda and Ecotec Owner Join Date: Mar 2011 Drives: 2004 Mazda 6S Location: Southeast Ohio Posts: 102 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Here are those plugs. __________________ 2004 Mazda6S MTX 2006 Saturn Ion 2.4L "Sport" MTX

03-28-2011, 01:02 PM	#7
#87 I usually post drunk Join Date: Oct 2009 Drives: BRZ Location: NY Posts: 1,487 Thanks: 15 Thanked 490 Times in 231 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	How many miles on that car or what spark plugs? Those shits are fucked lol

03-28-2011, 01:14 PM	#8
1GoZoom Mazda and Ecotec Owner Join Date: Mar 2011 Drives: 2004 Mazda 6S Location: Southeast Ohio Posts: 102 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	They CLAIMED when i took it in for service that the plugs were nearly new. Me being dumb assumed the stealership had checked. nope. Unfortunately, I didn't have them saying that in writing so i was fucked when the motor went kaboom. It has 124k miles and I'm pretty sure those were the ORIGINAL plugs. Haha. i only put 5k miles on it since buying it. Its been sitting 6 out of the 8 months I've owned it. __________________ 2004 Mazda6S MTX 2006 Saturn Ion 2.4L "Sport" MTX

03-29-2011, 08:12 AM	#9
BoostJunkie RaggedEdge Autosports Join Date: Aug 2010 Drives: 97 APU Supra Location: Houston Posts: 872 Thanks: 1 Thanked 14 Times in 12 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Nice, the water pump went out on the soup, so I took the time to upgrade to electrical water pump and electric fans, and some other Lil cooling goodies! __________________ Red JZA80 APU Supra 800whp White 07 Turbo Si 411whp RIP

03-29-2011, 01:18 PM	#10
1GoZoom Mazda and Ecotec Owner Join Date: Mar 2011 Drives: 2004 Mazda 6S Location: Southeast Ohio Posts: 102 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	That is one nice looking car. Here is what I'm saving for right now. http://www.npg-racing.com/SuperCharg...duct_info.html __________________ 2004 Mazda6S MTX 2006 Saturn Ion 2.4L "Sport" MTX

03-29-2011, 03:57 PM	#12
NESW20 2.1L 3SGTE Join Date: Oct 2009 Drives: MR2 Turbo & Tacoma Location: Columbus, IN Posts: 1,248 Thanks: 29 Thanked 24 Times in 22 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	there should have been multiple DTCs stored and the CEL illuminated, possibly flashing. __________________ 1991 MR2 Turbo - 2.1L high compression stroker 3SGTE 2006 Tacoma 4x4 TRD Off Road - All-Pro front bumper, Old Man Emu shocks, Old Man Emu HD front coils, All-Pro leafs 1990 240SX Coupe - sold 2008 Civic Si Sedan

03-29-2011, 04:16 PM	#13
RRnold 2 wheel member Join Date: Feb 2010 Drives: JZA80, 997.1, Taco Location: SoCal->NorCal Posts: 4,330 Thanks: 1,318 Thanked 938 Times in 480 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	It guess this qualifies as a common problem with Ford... I mean Mazda 6's http://forum.mazda6club.com/engine-d...e-problem.html __________________

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