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removing turbo/intake/exh mani's by jettabrendan on 15 Jun, 2011 08:34
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hey all, when i changed the head gasket i took everything out as 1 unit, but i have 2 busted off exhaust manifold studs,and dont feel like ripping the head out. i have no boost plus a terrible leak.. so i was wondering if its possible to remove the manifolds with the head still in the car. and if so how? i seem to not be able to get at all the bolts.
thanks - brendan -
#1 by Fredrikkk on 15 Jun, 2011 08:40
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First you have to loosen the C-clamps, then loosen the downpipe and then loosen the turbo. Then you might have to take off the intake manifold to get to the bolts on the exhaust mani, but I don't remember how little space is back there right now.
It's gonna be a pain in the ass though.. -
#2 by R.O.R-2.0 on 15 Jun, 2011 10:19
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low mount turbo FTW!!
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#3 by fatmobile on 15 Jun, 2011 23:28
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Oh yeah, plenty of room behind there to get the turbo/manifold off.
Drive it up on ramps and crawl under.
Disconnect everything hooked to the turbo and remove it.
It might be hard to remove studs,.. if you have to drill them out. -
#4 by damac on 20 Jun, 2011 10:27
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I had my turbo off my 85 just to look it over and clean for fun when I bought it last year. I now have to break all of this down because the exhaust manifold is leaking. If you have all the access to sockets, wobble extensions, etc. I made it work fairly easy. Just a couple where I had to hold it tight with my left hand to get a good crack. I try and soak everything a couple days ahead of time but I also don't have rust here. And also putting it on ramps, I have to or else I can't fit or move around
I thought I ordered all the bolts and studs because I read they are one time use, but then I came across a thread that the exhaust bolts are one time use and different size from non and turboed cars?
I pulled up my car profile at 3 different big guys websites and they all listed the same size nuts for each location so I blindly bought them, I hope they are the right size or it will delay me
If they are wrong, does anybody know where to get them or if the local hardware store has something applicable?
And also have I read right that you should have your exhaust manifold planed when off the car because the odds are it will be warped? -
#5 by CRSMP5 on 20 Jun, 2011 14:09
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ok the deal on nuts/washers...
turbo is different then non.. they use a thicker washer and a steel lock nut vs copper plated lock nuts.. look at audi 5k turbo... they use those nuts/washers to help prevent warpage of the manifold..
now removing head vs not removing head.. if studs broken off flush inside the head.. pull head.. if not pull manifolds.. try to remove studs.. if they then break off flush pull head.. have to drill then out and head off is easy vs on.. -
#6 by damac on 21 Jun, 2011 23:30
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darn, thats what i get for trusting those websites
my car is down with a leak and now I have the wrong parts coming in the mail.
so if the nuts are one time use, what about those thick washers and the studs? if mine don't have damage can i just reuse them? -
#7 by mystery3 on 22 Jun, 2011 00:10
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darn, thats what i get for trusting those websites
my car is down with a leak and now I have the wrong parts coming in the mail.
so if the nuts are one time use, what about those thick washers and the studs? if mine don't have damage can i just reuse them?
034 motorsport in fremont will have the proper turbo hardware. -
#8 by damac on 24 Jun, 2011 00:47
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Damn I peeked under my hood just to see what is up and found the top exhaust nut I could reach hand loose as well as all the lower ones. I couldn't reach the others at the moment. Felt like the studs were even loose to a degree and I see one totally gone from up top.
I used to see just a little hint of white smoke sometimes even when I first got this car but didn't want to tinker too much. I knew it existed and swear I could smell it sometimes but I suppose in the past few weeks it just got way worse for whatever reason.
I am going to break mine down this weekend and see how it goes. Plan on doing intake and all of that and getting the mating surfaces planed if need be so I don't have to tear into this again until rebuild time
On another note I ordered from www.autohausaz.com and now that I got my parts it seems that they did send me the right sizes?
I got thick metal looking washers, studs that are the same thread, but I got copper washers that look deformed so I assume they are lock washers that deform when torqued.
Do I just use them? And use copper anti sieze on the new studs?
I noticed that my turbo noise was kind of in and out since I got it, I wonder if I was losing boost ever since I got the car home. Should be interesting to see. Car was running great though before atleast as far as I know.
Any other things people should do when tearing down all of these parts? I thought I read something about drilling parts of the intake out for blowby reasons on higher mileage engines and that is me. I was just hoping to get a timing belt change out of mine before I repair. Even though it was starting up practically instantly with one glowplug cycle down to the teens during winter. I know there is blowby though I can see white smoke.