cracked 14b
 

I got a 14b with very little shaft play, some blue tops, and a sidemount in a trade for a FMIC that I got for free. This is def a budget build just to turbo the little d15b until my lsvtec is done...I was cleaning the turbo today and of course saw a crack on the exhaust housing where the mitsu star is, and then 2 more cracks on the flapper area. Since its obviously cast, and in a hard to get area and I only have a flux mig i really cant do anything about this can I? Should I bother looking for another housing? With some ARP studs I plan to push the d15 pretty hard...but will those cracks in a sense make a "boost leak"?

I would take pics but I only have my cell at college with me and not the digi.

Re: cracked 14b
 

The WG cracks will only make it spool slower. I wouldn't worry about it too much.

Re: cracked 14b
 

you can hit those up wit flux, if you can get in there to grind them smooth so the flapper will still seal

Re: cracked 14b
 

Alright, Ill try to hit it up with some flux action.

Thanks

Re: cracked 14b
 

I wouldn't even bother. I had a 14B that ran perfectly and when I pulled it off it had basically the same three cracks. two inside of the exhaust housing on the wastegate hole and right inside the inlet. Then one on the outside right where you said. Boosted fine. I wouldn't laid a bead down cause that cast housing is gonna have a different expansion rate then that of the fluxcore and if the housing expands and the weld breaks loose from the housing kiss that turbine wheel goodbye. Just leave it is my .02

Re: cracked 14b
 

You should just JB weld it.

Re: cracked 14b
 

i thought jb was only good for 400 deg.

Re: cracked 14b
 

Hell... stay away from jb welding anypart of the hot side of the turbo. You will die breathing the gas that jb puts out when it gets cooked. JB welding the downpipes of an NA car can kill you of the smell, nevermind the turbo thats 10x hotter.

Re: cracked 14b
 

heat the housing with a rosebud torch till red hot, then mig that fucker with flux then grind it smooth, also remove the flapper for the wastegate

Re: cracked 14b
 

Sorry guys the jb weld part on one of the hottest parts of the car was a joke. :1

But responses were good. ;)

Re: cracked 14b
 

JB weld is a joke.... I hope no one seriously uses that ---- anymore.

Re: cracked 14b
 

i thought the cracks were after the wheel in the exhaust flow, therefore if it cracked and came loose it would just keep goin out that exhaust.

Re: cracked 14b
 

no, the hole for the flapper is right below where the turbo bolts to the mani. One crack goes from the flapper and up into the flange area...so if I did weld it there would be a bead inside the housing that if it did break off would go into the turbine.

Re: cracked 14b
 

everyday numb nuts ... i make cc-fab manis with jb weld ni99a

Re: cracked 14b
 

ru in school for the mechanically challenged

Re: cracked 14b
 

jb weld or nothing

Re: cracked 14b
 

And your asking me this why?

Re: cracked 14b
 

jb weld always leaks for me, no matter what i use it on. jb weld a turbo, you think hes serious? come on.

do the flux thing like chachi said.

Re: cracked 14b
 

How about rubber cement?? When it dries it turns to cement right? Crazy glue always works on my ching chang manifolds when the break at the wastegate.. Umm, and yeah pure jb welded manifolds rock!

Re: cracked 14b
 

Every used 14b with the stock 6cm hotside is cracked. It's a design flaw from Mitsu, not to mention the turbos are from cars made in 1990-1994, so 10+ years of 1500 degree EGT's will cause cracking. An easy solution to the flapper hole cracks is to remove the little stock flapper and buy a stainless one that's larger in diameter and then port the flapper hole out and usually this gets rid of any of the bigger cracks. Port the inlet out to 7cm too.

Installing a larger flapper is a little tricky, but can be done with a die grinder, butane torch, some PB Blaster and some delicate removal of the little washer that holds it on, and of course good aim with a hammer so you don't smash your hand while mushrooming the head of the new flapper. I can point you in the right direction for a larger flapper and write up some instructions for you, or you can send me the exhaust housing and I'll do the flapper upgrade and port the inlet for you (cheap). I've done it a bunch of times, I have all the removed stock flappers to prove it lol.

I wouldn't really worry about it though unless you're running over stock psi and/or planning on doing tons of 4th and 5th gear pulls.

Re: cracked 14b
 

^^^ that sounds pretty good. Some moron I sold a 14b to locally thought it was fucked because of the cracks.

Re: cracked 14b
 

Hell it's like find a 14B this doesn't have some form of a crack in it's turbine housing. lol. Yes before some jackass replies...Oh I have a 14B that's perfect and no cracks...yada yada yada go fist your dad's peehole..yada yada... The majority of 14B have cracks is just what I'm saying...I'd say close to like 65-75% I've ever seen had some. I did pull a 14B at a yard and it was mint but the car had under 100k on it and everything under the hood looked mint and not beaten on. So yes they do exist but I wouldn't worry about the cracks. Just bolt it on and boost away. I've never seen one that was cracked so bad it fell apart or anything. Just the cracks wastegate hole can give you a little tiny midgets pubic hair amount of creep. Nothing I'd worry about though. Like 2G6 said these are getting to be older turbo's and being DSM's they get the most out of these things while there on there or the car is running. I wouldn't be surprised when I pull my 14B off it'll be cracked like plumber's butt cheeks at my VR4 has 179k on the car has little engine mods but knowing there are some mods on it. It mostly likely wasn't drove like granny's 1989 Pontiac 6000LE either.

Re: cracked 14b
 

cracks wont hurt it at all, but if you really want them welded.
" PLEASE DO NOT MIG WELD THEM" CAST IRON NEEDS TO BE HEATED
TO A SOFT RED GLOW THEN WELDED WITH EITHER STAINLESS TIG OR CAST IRON
WELDING RODS. IF NOT DONE CORRECTLY IT WILL CRACK AGAIN AND WORSE.

or contact BOB @ turbo performance (818-994-7152) he can hook you
up with the repair or a non cracked housing.
he hooked me up with a 12a rebuild & upgrade to 16g as well as
external wastegate conversion for my starion.

Re: cracked 14b
 

duh reread my post migged with stainless wire is ok note the heating part pwned reading owns you

Re: cracked 14b
 

Attachment 27778
Fixed :)
Attachment 27779

Re: cracked 14b
 

not fixed, i still ------- see cracks

http://img.photobucket.com/albums/v3...x/14port-1.jpg

Re: cracked 14b
 

no really, its fixed.

Re: cracked 14b
 

grinding down the wider part of the crack is not fixing the problem. you still have cracks.

Re: cracked 14b
 

I don't understand?

Re: cracked 14b
 

You know when I got mine it had a couple cracks on the WG hole and there was a long hair line crack on the side. I spent about a month calling welding shops and other metal companies and the final verdict was to braze it. Welding cast will not last and will not fill the cracks.
YOU Will need to heat it red hot and use some brazing sticks. Its like solder and will just run right into the cracks and fill them. With the cracks on the WG hole just let the cracks fill in then close the flapper so it gets a perfect seal. Thats what I did to mine. Worked perfect and still is holding.
There is also a website that sells a stanless OEM replacment with bigger ports for better flow... I dont have the website anymore but it would cost $200 which is to much anyways. SO ya... either do it yourself (cheaper) or take it to a shop and have them braze it.

Re: cracked 14b
 

brazing is low temp, will work as well as aluminum for a turbo exhaust housing...

Re: cracked 14b
 

Hey, I brought mine over to Full Race and there gonna tig it w/there robot, that should fix it right?

Re: cracked 14b
 

I did that with one of mine too. Robotic tigs look sexy on the 14b

Re: cracked 14b
 

please explain how the robotic welds are better than just a regular person doing a tig? I've hear good things about full race but always hear people complain about the prices

Re: cracked 14b
 

cant you just weld the flapper shut and use a external wastegate on something with small crack lines

Re: cracked 14b
 

The easiest solution is to just get a 7cm housing off a 16g. They don't crack. The 14b cracks because it's old and the 6cm housing has a manufacturing defect. A 7cm housing, while not easy (or cheap) to find by itself, will not crack for a long time, if ever. The 7cm housing off the EVO316G (has to be genuine) is legendary, It is cast with a ---- ton of nickel and is virtually uncrackable. I've never seen a cracked one. You could also just buy a blown 16g for like $80 and just use the hotside off it. Or yes, cut out the flapper, fill the hole like a ----------er including the cracks, and then run it external, but that seems like a whole lot of work for a 14b lol.

Re: cracked 14b
 

or cram jagojons testical in there and call it a day

Re: cracked 14b
 

Looks fixed to me. Robots have nothing on Jet.

Re: cracked 14b
 

If someone has the means and the motivation then theres nothing to lose. Otherwise 14bs aren't worth more than $100 so theres no point in paying someone to weld it up. Mine was ported, was it fixed as in brand new? Hell nah, this is HMT, theres no point cause its a 14B.

Genuine Full Race robotic tig welds inside the turbo = hella boost. I read it on Honda-Tech so its a solid source.