megan header issues

[whooppee777]

has anyone had trouble installing their megan header or and weird vibration noises afterwards? what happened to the thread that had the dyno results for the header?

[brickhardmeat]

if I'm not mistakin' in chris's diy you need to re-torque them there bolts shortly there after but I ain't no certified mechanic, it could be a cat hung up in there or somethin'

pop the hood

[whooppee777]

his exact words were "retorque to specs" and i couldnt find any specs so i just tightened the bolts. theres a brace on the lower en of the header that i was unable to put back on because the stock bolt didnt fit the megan header. the wonders of aftermarket parts. i think the lack of the brace is whats making it make the vibrating noise. maybe i dunno

[Shijima]

Personally, after seeing the thread about the 'gains' from this header I opted out of it, but If I recall someone said megan sends the wrong size bolts, and they had to get some other size.

[Chris07LB]

his exact words were "retorque to specs" and i couldnt find any specs so i just tightened the bolts. theres a brace on the lower en of the header that i was unable to put back on because the stock bolt didnt fit the megan header. the wonders of aftermarket parts. i think the lack of the brace is whats making it make the vibrating noise. maybe i dunno

You should have gotten all the correct hardware for the install, if purchased from Megan. Seems all the "other" Megan sales people have been getting elsewhere, have had these issues with the hardware.
This may or not be the problem in your case, as I dont know where you got yours from.

The vibration is coming from the heat shield "shell" just above and around the collector area... take your finger and "flick" on edge of the shield, you will make the noise, and see how very flimsy it is.

[whooppee777]

now i see what you're talking about. should i just take that off or what. my friend says i really dont need it. but he is retarded.

[Shijima]

Alotof people take it off, basically its just there to say, DONT TOUCH ME IM HOT, to prevent people who dont know how hot the exhaust gets from touching it.

[Chris07LB]

Alotof people take it off, basically its just there to say, DONT TOUCH ME IM HOT, to prevent people who dont know how hot the exhaust gets from touching it.

Thats not the part I am talking about. You are refering to the heat shield bolted to the stock header. Re-read my post, I am talking about the reflective heat shield (attached inside the tunnel) at the collector area. This keeps the floor board from transfering heat from the exhaust, into the car.

The heat shield on the stock header will not, and is not, designed to fit the Megan Header.

[cali yaris]

my Megan header did not come with the correct bolts. Fortunately, my friend at the shop had the correct size.

[whooppee777]

my Megan header did not come with the correct bolts. Fortunately, my friend at the shop had the correct size.

hells yea. high five. thats what i had to do and since we were in my friends shop we did the same thing. i'm probably going to take off that heat shield thats above the collector area. wont hurt anything i suppose.

while looking at the engine in my friends place today the shop manager said my engine was shaking too much and that it looked like my engine was miss firring. but it looked normal to me and if it was miss firring wouldnt it set a code, or wouldnt i feel or hear something as a result of it miss firring?

[eTiMaGo]

It would be unusual for it to misfire, and yes, it would throw a CEL if it did it. Toyota's intelligent tester tool would be able to tell you exactly if that is the problem, so if in doubt, go to your toyota service center and ask them to check it out. My guess is, because of the low idle of the engine, it could look like it's shaking, once it's warmed up. You could always invest in a torque damper, that will keep things in place :smile:

[ROCKLAND TOYOTA]

my Megan header did not come with the correct bolts. Fortunately, my friend at the shop had the correct size. NOR DID JERKRATT'S....

[Chris07LB]

Those with hardware issues.. were did you order yours from?

I know of knowone from the original Megan GB way back when, reporting any issues. Wondering what's going on over at Megan, or whoever builds these for them. Sucks.

[Jerkratt]

actually my friend was an idiot and thought the studs went somewhere else i have since gotten the studs installed still gotta find where the heat shield is being hit

[whooppee777]

do you have a link to the c-one torque damper?

[Jerkratt]

of course i think i posted one earlier... let me find it and update this post

EDIT: bulletproofautomotive has them... here (http://www.bulletproofautomotive.com/catalog-detail.php?ID=5195)

ask c2auto he might be able to order them also

ima go get dressed and try and find that heat shield problem.... be back later

[whooppee777]

it says its for the NCP91 model yaris. would that fit our yaris'? let me know how searching for that noise works out. so i know whether or not to take off my heat collector under there.

[Jerkratt]

ok so i went to the dealer today and they said its most likly the donut gasket thingy inbetween the header and the j pipe...... dam i dont got money to buy another donut/gasket.....

[whooppee777]

how much do they cost? so it wasnt the heat collector above the cat?

[Chris07LB]

Man if I wasnt working every damn day, id PROVE to you where its coming from. Its not the donut at the collector.. that doesnt even make sence. Its compressed between the end of the header flange, and top of the collector flange.. how would that vibrate. Your dealer is wrong. :rolleyes:

[whooppee777]

if you came to my house and fixed my rattle i'd gladly let you kick me in the nutz

[Chris07LB]

Running start?

[Astroman]

if you came to my house and fixed my rattle i'd gladly let you kick me in the nutz:bellyroll::laughabove:

[whooppee777]

Running start?

fuck it y not? i dont want kids. i'd rather have my rattle fixed.

[Chris07LB]

I'd rather a 1/4 keg of Miller Chill. :biggrin:

...Ill even let you drink some.

[Astroman]

Why not both? :biggrin:

[Chris07LB]

Because Im not into touching other men's nuts..

[whooppee777]

alright new plan. you fix my rattle then throw the keg at my nutz and we'll all get wasted then everyones happy.

[Astroman]

Because Im not into touching other men's nuts.. Good point... :smile:

[Jerkratt]

hey man im down lol he had this like doctor thingy with a point on it and was touching pipeing and he called me into the shop....ask rockland toyota.. he was standing right next to me lol

[Chris07LB]

As long as there was no bending over, or latex glove use.

[ROCKLAND TOYOTA]

Man if I wasnt working every damn day, id PROVE to you where its coming from. Its not the donut at the collector.. that doesnt even make sence. Its compressed between the end of the header flange, and top of the collector flange.. how would that vibrate. Your dealer is wrong. :rolleyes: i don't think its that either but it isn't the heat shield cause we checked that ...... what doesn't help is the megan exhaust that isn't too secure or the fact that we can't tell where the noise is coming from. hey jerkratt did the noise start to happen before or after we changed your cat????

[whooppee777]

this noise really really pisses me off. so if it isn't the heat shield above the cat, and isn't the gasket between the header and the cat then what else could it possibly be? it only rattles when i am in drive, is it the same for anyone else?

[Jerkratt]

drive... reverse... when i first switch into gear it raddles then it stops for a couple and starts up again whe im idleing going threw drive thru sux lol put it in N everytime lol... if im correct it did it before also..... yes it made the noise before the TSB for the cat was done.. was not as loud tho rockland did u get teh megan axle-back also... u did not notice that it hangs a little low and move around hitting the place where the springs sit? thats why that hanger was there lol i would go over a nice bump and hear it knock lol.. anyway on topic of the header yes noise before and after the TSB.. theres one other place it might be comming from. the stud that holds the header to that bracket type thing....when i was under the car i heard it coming from there.. is that possible?

[Jerkratt]

going to try and work on it today later weather permiting

[whooppee777]

cant be that bracket thing because i didnt put the bracket back on when i installed the header and it still makes the noise. i think i am going to wrap my car in packaging bubble wrap. that should fix it.

[Chris07LB]

Looks like ill be putting together a diy on securing the shield above the collector... that is for those that have the rattle. :rolleyes:

[Jerkratt]

please and if that still does not fix it then..... whatever lol ill deal with it but if it works your a life saver and im goign to drive there and give u a keg or something

[Chris07LB]

deal.

[whooppee777]

i'd buy you a keg but i am not 21 so you'll just have to settle with the swift kick in my nutz.