Turbo SW20 issues

The place for all technical car discussions. If you haven't already, read our Disclaimer first!

Moderator: The Mod Squad

Turbo SW20 issues

Postby thegreatestben » Tue Apr 20, 2010 12:11 am

Had a quick look into why my newly acquired SW20 is smoking like crazy.
First notable problem was about 2L+ of oil additional to the required amount.

This helped with the smoking a little bit. Wasn't smokescreen effect until I gave the throttle a blip. I did a compression test and got the following:

Cyl Dry w/Oil
1 212psi 300plus ??
2 212psi 260psi
3 190psi 210psi
4 200psi 260psi

The compression tester is an optilux one which I've only used once before so not entirely sure whats going on with the numbers because they aren't what the BGB says they should be (164psi with min of 128psi and max difference of 14psi)

I also took the intercooler out and the piping and it had quite a bit of oil, I was told by ex toyota mechanic that excessive smoke could be blown seals in the turbo but I know the car has just had a bad turbo replaced by previous owner. Anyway the the piping had a bit of oil through it but it appears to be from the old turbo because the actual compressor outlet is dry or atleast that's what I'm assuming would be the case.

Pics of what I'm trying to explain:

This looks like it's been there for a while, the air filter had a oil spot in one place and the piping prior to the turbo was still oily inside
Image

The compressor outlet is bone dry:
Image

But the intercooler and all piping between the turbo and throttle body is like this:
Image

Really I'm just looking for advice on which direction to go from here. I also found the oxy sensor wiring had been cut off so I fixed that but haven't started it since fixing as I had taken all the piping off. I may also try a standard ecu instead of the blitz one.

If I have to I will do new rings/bearings/gasket/head gasket
Last edited by thegreatestben on Tue Apr 20, 2010 9:29 am, edited 1 time in total.
User avatar
thegreatestben
Toyspeed Member
 
Posts: 2083
Joined: Sat Aug 26, 2006 5:09 am
Location: Lower Hutt

Postby thegreatestben » Tue Apr 20, 2010 12:13 am

Oh I've taken all the pipes off to have all the additional oil removed from them tomorrow. And I'm gonna borrow a leak down tester to see if the rings are pooped on number 3 cyl.
User avatar
thegreatestben
Toyspeed Member
 
Posts: 2083
Joined: Sat Aug 26, 2006 5:09 am
Location: Lower Hutt

Postby fivebob » Tue Apr 20, 2010 12:25 am

Regardless of the figures, the fact that #3 doesn't come up with addition of oil, and the evidence of oil in the intake implies that, from my experience anyway, the ringlands may be broken.
User avatar
fivebob
Toyspeed Member
 
Posts: 3879
Joined: Fri May 02, 2003 5:12 pm
Location: Tauranga

Postby thegreatestben » Tue Apr 20, 2010 9:29 am

fivebob wrote:Regardless of the figures, the fact that #3 doesn't come up with addition of oil, and the evidence of oil in the intake implies that, from my experience anyway, the ringlands may be broken.


Bah, I dont know how I wrote that in the w/oil bit but it did come up, just not as much as others. Fixed with correct result now
User avatar
thegreatestben
Toyspeed Member
 
Posts: 2083
Joined: Sat Aug 26, 2006 5:09 am
Location: Lower Hutt

Postby mr30%jr » Tue Apr 20, 2010 10:37 am

you prob have alot of blow by and a cracked ringgland sadly

Image

no definatly but maybe.

could be a head gasket?
st165, ae86 ,aw11 SC, aw11 blacktop, aw11 4afe, fzr250Exup, ta63 carina, b5 s4
User avatar
mr30%jr
Toyspeed Member
 
Posts: 1323
Joined: Sun Nov 21, 2004 11:51 pm
Location: Napier

Postby solitaire » Tue Apr 20, 2010 4:33 pm

I had the same symptoms for the most part and it was bad turbo oil seals (a turbo oil feed gasket problem meant that oil could get into the turbo, but not out anywhere near as quickly)

food for thought but not a definite answer sorry :(
AE92, KZJ120, KDJ120
User avatar
solitaire
Toyspeed Member
 
Posts: 3371
Joined: Fri Apr 21, 2006 9:06 am
Location: Orewa, Auckland

Postby thegreatestben » Tue Apr 20, 2010 5:57 pm

Ok well whatever the problem is I'm gonna fix it!
I've ordered a TGP full set, ACL head bolts and a set of ACL rings.

Will pull it to bits tomorrow!

Can you buy seal kits for the CT26 and can I do them without specialty tools?
User avatar
thegreatestben
Toyspeed Member
 
Posts: 2083
Joined: Sat Aug 26, 2006 5:09 am
Location: Lower Hutt

Postby ee904age » Tue Apr 20, 2010 6:56 pm

I have a similar problem with mine. Today was the first time I've really driven it and after warming it up for ~5mins, took off up the road, gave it a hurry up, got home (2km trip) and it was blowing white smoke at idle. Has never done it before whilst idling/moving it around the section. Turned it off and let it cool, started it again. Was good until it was up to temp again then started smoking. Has a 1 metre pipe from turbo, no muffler, when putting my hand over it I end up with small black "spits" on my hand. Im not convincd its oil as it doesn't smear when wiping off. Its not coming from turbo as the intake pipes are all spotless. I'm pretty sure its not steam as my hand isnt moist after holding it over exhaust.

Slight Hi-Jack I know, but so similar its not worth starting another thread.
90 SW20 Turbo - Project
90 SW20 N/A - Sold
User avatar
ee904age
Toyspeed Member
 
Posts: 1388
Joined: Tue Dec 16, 2003 6:27 pm
Location: Wanganui

Postby thegreatestben » Tue Apr 20, 2010 8:32 pm

User avatar
thegreatestben
Toyspeed Member
 
Posts: 2083
Joined: Sat Aug 26, 2006 5:09 am
Location: Lower Hutt

Postby kim0663 » Tue Apr 20, 2010 9:56 pm

I vote rings and a warped manifold too.

Gosh that sounds like a tractor! lol
Mr2 GT-S
330ci M
User avatar
kim0663
Toyspeed Member
 
Posts: 409
Joined: Mon Jun 02, 2008 1:32 pm
Location: Auckland

Postby Akane » Tue Apr 20, 2010 11:59 pm

Wow what's with the clicking sound..........
No "stance", no "hellaflush", none of that bullshit. Nothing but no grip on full boost.
http://www.lol.co.nz/ random shit.
User avatar
Akane
Toyspeed Member
 
Posts: 4073
Joined: Tue May 14, 2002 2:08 am
Location: Auckland

Postby mr30%jr » Wed Apr 21, 2010 12:05 pm

out of curiousity how much did all that cost i wanna do it to my 4agze
st165, ae86 ,aw11 SC, aw11 blacktop, aw11 4afe, fzr250Exup, ta63 carina, b5 s4
User avatar
mr30%jr
Toyspeed Member
 
Posts: 1323
Joined: Sun Nov 21, 2004 11:51 pm
Location: Napier

Postby ~SlideWays~ » Wed Apr 21, 2010 12:14 pm

mr30%jr wrote:out of curiousity how much did all that cost i wanna do it to my 4agze


I think you are confusing his SW with AW?
User avatar
~SlideWays~
Toyspeed Member
 
Posts: 4974
Joined: Sat Nov 23, 2002 3:02 am
Location: Wellington

Postby thegreatestben » Wed Apr 21, 2010 2:10 pm

Yeah this is for a SW20.
But headset was special price from a mate at local toyota parts depot, and the rest is from work (repco) so it was cheap cheap.
User avatar
thegreatestben
Toyspeed Member
 
Posts: 2083
Joined: Sat Aug 26, 2006 5:09 am
Location: Lower Hutt

Postby mr30%jr » Wed Apr 21, 2010 3:26 pm

~SlideWays~ wrote:
mr30%jr wrote:out of curiousity how much did all that cost i wanna do it to my 4agze


I think you are confusing his SW with AW?


im not confusing them lol i know what a 3sgte and a 4agze is dude LOL

nah was just curious for a ball park figure.

never mind.... sigh
st165, ae86 ,aw11 SC, aw11 blacktop, aw11 4afe, fzr250Exup, ta63 carina, b5 s4
User avatar
mr30%jr
Toyspeed Member
 
Posts: 1323
Joined: Sun Nov 21, 2004 11:51 pm
Location: Napier

Postby ~SlideWays~ » Wed Apr 21, 2010 4:19 pm

mr30%jr wrote:
~SlideWays~ wrote:
mr30%jr wrote:out of curiousity how much did all that cost i wanna do it to my 4agze


I think you are confusing his SW with AW?


im not confusing them lol i know what a 3sgte and a 4agze is dude LOL

nah was just curious for a ball park figure.

never mind.... sigh


Yeah cool, but the thread and its photo's are about an SW20.
User avatar
~SlideWays~
Toyspeed Member
 
Posts: 4974
Joined: Sat Nov 23, 2002 3:02 am
Location: Wellington

Postby mr30%jr » Wed Apr 21, 2010 4:27 pm

yes i was asking how much the parts ben bought were......

i know its not a fricken 4agze but i thought i could get a rough idea but its not relivant to me as he gets the hooks up...

why do you think because im asking ben how much he got his 3SGTE stuff that i wouldnt know its an sw20..... geez playing me for a fugen idiot ive owned 2 sw20s :roll: just the typical bandwagon ts "i want to call someone wrong cause it feels good"

did you get the ACL race bearings? and the thrusts?
st165, ae86 ,aw11 SC, aw11 blacktop, aw11 4afe, fzr250Exup, ta63 carina, b5 s4
User avatar
mr30%jr
Toyspeed Member
 
Posts: 1323
Joined: Sun Nov 21, 2004 11:51 pm
Location: Napier

Postby ~SlideWays~ » Wed Apr 21, 2010 4:49 pm

mr30%jr wrote:yes i was asking how much the parts ben bought were......

i know its not a fricken 4agze but i thought i could get a rough idea but its not relivant to me as he gets the hooks up...

why do you think because im asking ben how much he got his 3SGTE stuff that i wouldnt know its an sw20..... geez playing me for a fugen idiot ive owned 2 sw20s :roll: just the typical bandwagon ts "i want to call someone wrong cause it feels good"

did you get the ACL race bearings? and the thrusts?


Just seemed a bit strange asking about parts prices for a 4agze when he had bought 3sgte parts.

Put the flame thrower away dude :lol:
User avatar
~SlideWays~
Toyspeed Member
 
Posts: 4974
Joined: Sat Nov 23, 2002 3:02 am
Location: Wellington

Postby thegreatestben » Wed Apr 21, 2010 8:59 pm

Havent purchased bearings yet. will order if needed.
3sgte is on da floor.
User avatar
thegreatestben
Toyspeed Member
 
Posts: 2083
Joined: Sat Aug 26, 2006 5:09 am
Location: Lower Hutt

Postby mr30%jr » Thu Apr 22, 2010 10:52 am

thegreatestben wrote:Havent purchased bearings yet. will order if needed.
3sgte is on da floor.


just like an aw11 ay :P not that hard

did you just do the subframe or pull the shafts?
st165, ae86 ,aw11 SC, aw11 blacktop, aw11 4afe, fzr250Exup, ta63 carina, b5 s4
User avatar
mr30%jr
Toyspeed Member
 
Posts: 1323
Joined: Sun Nov 21, 2004 11:51 pm
Location: Napier

Next

Return to Tech Questions

Who is online

Users browsing this forum: Google [Bot] and 14 guests