Exhaust leak, FIXED WELL SORT OFF!!UPDATE
 

Well after this morning's run in with the law:
https://www.homemadeturbo.com/forum/...threadid=22370
I got to work and about 30 min ago, my lunch hour, I was checking the car, engine bay. I can finally listen to what's going on in there, before it was too loud, open downpipe, and I adjusted my timing, at the distributor, it was way too retarded, and now it idles like a champ, but I noticed a lot of exhaust blowby coming from the manifold to adapter plate connection. Then I remember, I didn't use a gasket here, so I think that's why it only boosts 4psi and I get full boost at 4,400rpms.

SOHC Vtec ZC, IHI RHb5, starion FMIC, AFC hack.

Anyhow, does someone know where to find that gasket on the net. The dealer said I had to wait 2 weeks. I checked majestichonda.com, and didn't find it. I;m going to search some more, but If someone know where to get it, let me know.

Thanks

Re:Big ass exhaust leak, the cause of my problems!!!
 

I found it in Majestic and also Discount Auto parts.
thanks anyways ::)

But am I right in thinking that's affecting my spool time, and boost pressure?

Re:Big ass exhaust leak, the cause of my problems!!!
 

I didn't use either gasket between mani/adapter/turbo, I get full boost at around 4500 rpms and my boost controller won't up the boost past 6 psi,

Mabye we have a common problem?

Re:Big ass exhaust leak, the cause of my problems!!!
 

Maybe, I get 4-5 psi. I thought about getting an MBC to boost higher, but I'm not sure what's going on. I know the leak is affecting somehow, so i'll fix that.


I'm a dumbass, I have the manifold to adapter plate gasket, I need the adapter plate to turbo gasket, and now I remember that Mazda told me the same thing, 2 weeks, and it was like $25.00. I think I found it on Advanced auto parts, but they want $31.00 for it.

Re:Big ass exhaust leak, the cause of my problems!!!
 

Exhaust leaks are usually visually noted, ---- you can even feel them while the car is running. Try taking some studs/bolts out of one side of the header.. I've ran into plenty of exhaust leaks before, that ---- can make things nasty.

Are you seeing a visual sign of the leak?

Don't forget the copper rtv (yeah I'm an rtv freak)

Re:Big ass exhaust leak, the cause of my problems!!!
 

Yes, I can see the smoke, but I was at my work's parking and it's hot as hell outside, Florida woo woo, so I know there's a leak somewhere.


EDIT: Actually the smoke, could even be the paint burning out, the last owner of this turbo, decided to paint the hot side, red, so all that paint has been burning off litle by little. But I can still hear a leak, exhaust leak, it's not too loud, but when I accelerate I can hear it.

Re:Big ass exhaust leak, the cause of my problems!!!
 

Smoke is one thing, I'm asking about that black chared look, carbonated out and ----. You know where I'm getting at.

Re:Big ass exhaust leak, the cause of my problems!!!
 

Yeah I know, well today was the first day I drove it more than 5 miles in months, so I have not seen any build up, but maybe in a couple of days i'll see something.

Re:Big ass exhaust leak, the cause of my problems!!!
 

hey bro can you tell me what your settings are for you hack?

Re:Big ass exhaust leak, the cause of my problems!!!
 

Engine Management FAQ's

1000 - 40%
1500 - 40%
2000 - 39%
3000 - 38%
4000 - 37%
--- VTEC set to 4400 RPMs ---
5000 - 35%
6000 - 34%
7000 - 34%
8000 - 34%

Re:Big ass exhaust leak, the cause of my problems!!!
 

To test an exhaust leak, get a white cloth of some sort, hold it right near what you expect to be leaking (no on, or it'll burn/dirt and ---- will wipe off on the cloth.) then have someone rev that bitch. If you get any black ---- on the cloth after a few seconds, you found your leak.

Re:Big ass exhaust leak, the cause of my problems!!!
 

i have a hf/std/vx gasket, 5 bucks plus wahtever shipping method you would like.

Re:Big ass exhaust leak, the cause of my problems!!!
 

take a piece of hose and hold one end up to your ear and the other next to where you think you might have a leak or even just move it around. You will ear where you have any leaks.

Re:Big ass exhaust leak, the cause of my problems!!!
 

Ill give you 1 gajilion bucks for that gasket only if you teleport directly to me :P

Re:Big ass exhaust leak, the cause of my problems!!!
 

I'll do it. Half up front though :P

Re:Big ass exhaust leak, the cause of my problems!!!
 

Or just put that hose in your tailpipe and route it into the passenger compartment of the car while running - with all the windows up.

Re:Big ass exhaust leak, the cause of my problems!!!
 

I had an exhuast leak right at the exhaust manifold to block. I could hear it, smell it, and feel it in performance. I got it fixed and the psi level did not increase, although I thought that it would have, but it performs much better, it spools faster and holds stronger.

Re:Big ass exhaust leak, the cause of my problems!!!
 

Yeah Thanks :-\

I'm going to try the hose to the tailpipe to the car solution. ;)

The low boost problem can be fixed with a carb spring, or an MBC, the bigger problem is the lag, boosts starts to build at 4500 rpms or so, and its a tiny IHI RHb5, so that leak, if it is exhaust, which I'm pretty sure it is, might be way it takes so long to spool.

Thanks for all of your suggestions

Re:Big ass exhaust leak, the cause of my problems!!!
 

Yesterday after work I decided to check tha leak before it rained, it's raining every the nuts that hold the turbo to the adapter plate are loose to the finger. How did that happen, I don't know, but it is, problem is I can't get a wrench or anything in there, so I'm going to have to unbolt a bunch of crap to get there. It probably will get done Saturday, before it rains.

Re:Exhaust leak, the cause of my problems!!!UPDATE
 

Well after I took everything out, turbo, manifold, charge pipes, oil lines, downpipe to thighten the screws, which I did, then put everything back together, I still have a leak.

I can see the gases coming from under the adapter plate, between turbo and plate. I did put some silicone gasket material to make sure I sealed anything that migh have been leaking. No luck

Now I either have a crack on the manifold, or on the turbo. That's all I can think of. Car still only spools 4 psi, 5 if I'm lucky.

Re:Exhaust leak, FIXED WELL SORT OFF!!UPDATE
 

WOO WOO

ok today after work, I checked everything again, nothing, I still have a leak but whatever. The I saw my BBKA style filter and it looked kinda clogged with old oil or something, I took it off.

Holly ----!!!! The bitch rips, I had my MBC up all the way because of the tests before and the bitch got up to like 17 psi, I quickly let go, adjusted the mbc to around 10 psi, holly ----, the best day of my life.

Re:Exhaust leak, FIXED WELL SORT OFF!!UPDATE
 

We used to spot exhaust leaks on V8's by spraying some sort of lubricant down the carb to make some smoke.

Re:Exhaust leak, FIXED WELL SORT OFF!!UPDATE
 

good job man.

Re:Exhaust leak, FIXED WELL SORT OFF!!UPDATE
 

hahah ive been reading all your posts thinking damn when will he fix this then when i read the part about taking off the filter and having it rip i just heard a loud boost spool up in my head! LOL! boost you gotta love it! way to go and get a new filter!

Re:Exhaust leak, FIXED WELL SORT OFF!!UPDATE
 

Thank you Thank you....

Yeap, I need some sort of filter there, don;t want any rocks going in there, gotta tell you, I'm really really happy it all worked out.

I also just got a set of brand new used tires for it, I'm cheap and I was running on 2 14" steelies, and 2 13" stealies, now I got some used goodyear tires on the 14"s. All ready for Daytona.

I'm pimping my 14" rims, I think I'm going to get some spinner hubcabs.