White smoke coming from below turbo - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members

DIY Turbo Discussion greddy on a 1.8? homebrew kit?

LinkBack Thread Tools
Old 10-18-2016, 07:56 AM   #1
Thread Starter
Join Date: Oct 2016
Posts: 1
Total Cats: 0
Default White smoke coming from below turbo

Hi all.

I bought a 1990 turbo'd mx5. I was wondering if you guys could help with an issue.

When I drive longer journeys, more than say 20 minutes, when I slow down or come to a stop a load of white smokes comes out my left headlight surround and the cabin fills with a burning smell. I quickly jump out my bucket seat (not quickly!) and open the bonnet and the smoke is coming from below the turbo. I look under the car and it seems to be coming from the downpipe (which is wrapped). It only smokes for about 15 seconds after I pull over which makes it hard to diagnose. Do you think a small oil leak could be leaking onto the wrap and burning off? The thing is it does this for long journeys and doesn't just burn off in the first 20 minutes it will smoke for a couple hours. Would burning oil give pure white smoke and a distinctive burning smell? I presume the downpipe isn't leaking itself as then it would smell like fumes not a burning smell.

Turbo is a GT2560 and only 6 months old. It looks like the turbo is causing the smoke initially but the smoke is definitely coming from below it.

It's worse on motorway journeys rather than around town. My car sits off boost on the motorway too so not stressing the turbo at all.

Maybe this has happened to someone else? Cheers guys
epi_pulse is offline   Reply With Quote
Old 10-18-2016, 08:14 AM   #2
iTrader: (24)
shuiend's Avatar
Join Date: May 2006
Location: Charleston SC
Posts: 13,761
Total Cats: 1,101

Most likely an oil leak at either the turbo oil feed or drain is dripping on down pipe and then smoking.
shuiend is offline   Reply With Quote
Old 10-22-2016, 09:26 PM   #3
Junior Member
Join Date: Aug 2015
Location: Mass
Posts: 300
Total Cats: 17

Check below the dipstick tube where it connects to the block - I thought my oil drain was leaking and it actually turned out to be the very bottom of the dipstick tube.
Colipto is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Boost addicts 90 na, 2002 vvti engine, t04e twin scroll turbo, fully custom build Boost_addict Build Threads 144 09-10-2016 03:42 PM
White Wire Ground Block (JC-01) 4x ECU 1x ? Lawone ECUs and Tuning 4 09-09-2016 11:16 AM
1990 mspnp2 t3 turbo back fire at 5krpm collin kinney251 MEGAsquirt 4 09-09-2016 08:28 AM
oil feed line tee, brass vs steel. psreynol Race Prep 8 09-03-2016 06:05 PM
Oil Leak After Turbo Install ScrapinMX5 Engine Performance 6 08-18-2016 11:52 AM

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 04:25 PM.