:::RHMT::: Real Home Made Turbo

Please login or register.

Login with username, password and session length
Advanced search  

News:

AJ's 1966 Nova LSX twin turbo build! (link)

Pages: [1]   Go Down

Author Topic: Why do turbo leak and smoke?  (Read 5744 times)

b20beast

  • Full Member
  • ***
  • Offline Offline
  • Posts: 149
Why do turbo leak and smoke?
« on: August 19, 2009, 07:34:19 PM »
Anyone has real info WHY a turbo leaks or smoke?

Dont say BAD SEALS.

The seal looks like a piston ring to me, so idk
Logged

jagojon3

  • RHMT Moderator
  • Certified OG
  • *****
  • Offline Offline
  • Posts: 17261
Re: Why do turbo leak and smoke?
« Reply #1 on: August 19, 2009, 07:37:02 PM »
BAD SEALS or too much oil pressure which may or may not damage the seal.
Logged

Turkey soup pancakes sir

Robb

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 4624
  • Meat Popsicle
Re: Why do turbo leak and smoke?
« Reply #2 on: August 19, 2009, 07:39:21 PM »
Because your turbo cant stand how ignorant you are, and is killing itself to get way from you and go to turbo heaven. 



No seriously though...
Quote from: jagojon3 on August 19, 2009, 07:37:02 PM
BAD SEALS or too much oil pressure which may or may not damage the seal.

What kind of turbo is it?
Logged

blowoff valves are for pussies.

ratcityrex

  • I Get Blown Daily
  • Global Moderator
  • Certified OG
  • *****
  • Offline Offline
  • Posts: 7374
Re: Why do turbo leak and smoke?
« Reply #3 on: August 19, 2009, 07:42:32 PM »
Or a shitty drain line like a kinked one and it pressurized the turbo and blowes oil past the seals.
Logged
New setup is old bottom end with a hype r head with gsr cams. built lsv with hx35 @ 26psi on pump gas
LEED tuned! 434hp/329tq http://www.youtube.com/watch?v=_pbDXZxZdZs
http://www.realhomemadeturbo.com/forum/index.php/topic,16195.0.html

Old Setup B18a1 296hp/289tq LEED Tuned 20psi on pump! http://www.youtube.com/watch?v=2Yj-Z90j4W4   
http://www.realhomemadeturbo.com/forum/index.php/topic,205.msg2437.html#msg2437

b20beast

  • Full Member
  • ***
  • Offline Offline
  • Posts: 149
Re: Why do turbo leak and smoke?
« Reply #4 on: August 19, 2009, 08:18:20 PM »
how exactly do seals get damaged?

their like piston rings
Logged

danz

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 6783
  • 0-60 in 2.7 seconds
Re: Why do turbo leak and smoke?
« Reply #5 on: August 19, 2009, 08:38:17 PM »
why dont you try reading what these fine gentlemen  O0 :mexi: :?:  just told you.  then you might realize how stupid your latest question is
Logged
10.510 @ 133.09 mph D16Z6 EJ6
10.912 @ 127.33 mph D16A6 ED6

brine04

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 2251
  • B-North
Re: Why do turbo leak and smoke?
« Reply #6 on: August 19, 2009, 09:02:57 PM »
Quote from: b20beast on August 19, 2009, 08:18:20 PM
how exactly do seals get damaged?

their like piston rings

Ever seen a motor with blow by from worn rings?
Logged
92GSR - mild interest

Jorsher

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 8575
Re: Why do turbo leak and smoke?
« Reply #7 on: August 19, 2009, 09:07:08 PM »
Quote from: brine04 on August 19, 2009, 09:02:57 PM
Quote from: b20beast on August 19, 2009, 08:18:20 PM
how exactly do seals get damaged?

their like piston rings

Ever seen a motor with blow by from worn rings?

lulz brine u n00b

my engin wit 270k miles runs lik a top

i jus gotta put oil n it every week
Logged

Robb

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 4624
  • Meat Popsicle
Re: Why do turbo leak and smoke?
« Reply #8 on: August 19, 2009, 09:56:42 PM »
Turbo "seals" are usually just metal or ceramic snap rings that are a snug fit in their respective channels. Excessive oil pressure, carbon buildup, wear from spinning in their bores, etc. are what make your turbo smoke. 

Logged

blowoff valves are for pussies.

patsmx5

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 1584
Re: Why do turbo leak and smoke?
« Reply #9 on: August 19, 2009, 10:42:14 PM »
Too much oil pressure or a shitty (not excellent) drain can make a new turbo leak oil. I run a .070 restrictor on my garrett, but I've talked to two engineers that work for garrett and they both told me the same thing. They are not aware that any turbo they sell needs a restrictor added to it. A good drain is a must though.
Logged
Quote: Originally Posted by Adam Hopkins
There is no such thing as too much boost. You could have too little rod, piston, or sleeve. But never too much boost.

Eggylshatch

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 2188
  • Pen15 Club President
Re: Why do turbo leak and smoke?
« Reply #10 on: August 21, 2009, 02:57:36 AM »
Quote from: c0mpl3x on August 19, 2009, 10:48:00 PM
Quote from: Robb on August 19, 2009, 09:56:42 PM
Turbo "seals" are usually just metal or ceramic snap rings that are a snug fit in their respective channels. Excessive oil pressure, carbon buildup, wear from spinning in their bores, etc. are what make your turbo smoke. 



to understand this better, find a forester xt/legacy or outback gt/wrx, and stand behind them for 10mins.   all of the above will show

Do you still have your wrx?  If so, whats its status?
Logged

HiProfile

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 4564
  • Injector Kingpin
Re: Why do turbo leak and smoke?
« Reply #11 on: August 21, 2009, 10:19:01 PM »
Quote from: c0mpl3x on August 21, 2009, 01:16:09 PM
yup still got the slut.  just got it back from the bodyshop after sucking a telephone pole missing a deer.  it fully does wheelies and barrel-rolls.

I don't believe it. Last time you only said barrel-rolls.

If you look at the 3 general type of seals used in modern turbos, they are intended to seal around the shaft, not 90* in the direction excessive oil pressure would push it. Bad oil drains is similar to what an unvented crank case does to rings. Since there is no relief from the pressure, the oil goes the only place it can - into the compressor and turbine.

I've not ran as many turbos as some people, but I've never blown a seal. This includes my 2 old turbos, one is 20+ years old, one was dis/reassembled w/o rebalancing. It amazes me how all these Honda retards blow turbos, yet only a fraction of other car groups can do the same on their turbos. It seems like many Honda guys think their shit don't stink, and don't use a proper restrictor or oil drain.
Logged
they mspainted dildoes in my mom'#039#039s hand, in a picture of her in a hospital bed. -JD
dem gurls need some boobz! -Engloid

Robb

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 4624
  • Meat Popsicle
Re: Why do turbo leak and smoke?
« Reply #12 on: August 22, 2009, 04:52:15 PM »
Only turbo's ive killed were because of compressor surge spooling at 1200rpms on small shaft MHI turbos pieced together from 3 separate units. 

HiProfile is right, most people fail at the feed and return. Turbos are fucking tough, it really does take alot to kill one.
Logged

blowoff valves are for pussies.

turbob16hatch

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 2080
Re: Why do turbo leak and smoke?
« Reply #13 on: August 22, 2009, 05:29:52 PM »
i agree with people failing with feed and drains. i see way to many dumb shits runing kinked oil drains and huge oil feeds.
Logged

b20beast

  • Full Member
  • ***
  • Offline Offline
  • Posts: 149
Re: Why do turbo leak and smoke?
« Reply #14 on: August 23, 2009, 01:02:11 AM »
I run a .065" restrictor -4 Line
And -10 Return line, straight shot.\

Turbo still smokes with  new seals.

I think it may of been blowby/back pressure...

i rebuilt my engine, do you think new turbo or rock this one?
Logged

ratcityrex

  • I Get Blown Daily
  • Global Moderator
  • Certified OG
  • *****
  • Offline Offline
  • Posts: 7374
Re: Why do turbo leak and smoke?
« Reply #15 on: August 24, 2009, 11:45:28 AM »
take the turbo off and see if your shit still smokes.
Logged
New setup is old bottom end with a hype r head with gsr cams. built lsv with hx35 @ 26psi on pump gas
LEED tuned! 434hp/329tq http://www.youtube.com/watch?v=_pbDXZxZdZs
http://www.realhomemadeturbo.com/forum/index.php/topic,16195.0.html

Old Setup B18a1 296hp/289tq LEED Tuned 20psi on pump! http://www.youtube.com/watch?v=2Yj-Z90j4W4   
http://www.realhomemadeturbo.com/forum/index.php/topic,205.msg2437.html#msg2437

DreaMeR

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 251
Re: Why do turbo leak and smoke?
« Reply #16 on: August 24, 2009, 11:58:10 AM »
uh, how about a compression test to see if its your engine?...
Logged

b20beast

  • Full Member
  • ***
  • Offline Offline
  • Posts: 149
Re: Why do turbo leak and smoke?
« Reply #17 on: August 24, 2009, 07:37:16 PM »
2 weeks later i found broken ringlands !


all 4 of em
Logged

shadow

  • Certified OG
  • *****
  • Offline Offline
  • Posts: 2160
  • out either bangin gears or your mom
Re: Why do turbo leak and smoke?
« Reply #18 on: August 24, 2009, 08:07:51 PM »
Logged
'Get the fucking handout and give it to me. I'll put a "Sponsored by Darkelvis Racing" banner on my drag car, and spend the money on crack and hookers.'
Pages: [1]   Go Up
« previous next »