Diagnosis please... Odd Oil Preasure - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 03-13-2012, 09:18 PM   #1
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2008
Location: Tucson, Arizona
Posts: 889
Total Cats: 55
Default Diagnosis please... Odd Oil Preasure

I'll spare the back story unless anyone REALLY wants to hear my crappy story w/ cheeky comments. Basically I have not driven my miata very much in the last 2 years for lots of reasons.

it has a 1.6l Japanese motor in it bought from some warehouse in canada and slapped in 2 and a half years ago. While idling if i pull my dip stick out smoke comes puffs out like a little locomotive . My breather valve filter driver side is pretty much black & does the same. If i pull off my oil fill cap it also puffs smoke & little bits of oil pretty significantly.

I'm pretty sure those are all really bad signs. I also can't ever keep my coolant reservoir full & have been unsuccessful on determining where it's actually going. My oil does not appear milky or smell odd.

With all said please advise. Am i better off getting a new motor? I know there are some tests i can do to confirm but any wasted money in testing could go towards a new motor and seeing as how they are relatively inexpensive by the time i spend $100 testing i've just spent 20% of what could have gone to my new to me motor. thoughts please or questions.

After i hear some thoughts i have another question regarding a new motor but I'd like to hear some technical information first.
krissetsfire is offline   Reply With Quote
Old 03-13-2012, 10:45 PM   #2
Moderator
iTrader: (11)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 15,682
Total Cats: 1,561
Default

Pick up another motor or build that one... with forged internals and add boost.

A compression tester is $15-20. You may just need a head gasket for $40.
sixshooter is online now   Reply With Quote
Old 03-14-2012, 12:46 AM   #3
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2008
Location: Tucson, Arizona
Posts: 889
Total Cats: 55
Default

i have a compression tester. i guess tomorrow i'll start with that.
krissetsfire is offline   Reply With Quote
Old 03-14-2012, 01:17 AM   #4
Senior Member
 
Join Date: Aug 2010
Location: Arl. Texas
Posts: 937
Total Cats: 23
Default

A. Clean PCV valve/system.
D. Change Oil? How old is it?
D. Check Compression.
Test Coolant.
B
O
O
S
T
Miater is offline   Reply With Quote
Old 03-14-2012, 01:40 AM   #5
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2008
Location: Tucson, Arizona
Posts: 889
Total Cats: 55
Default

I guess that's a good point i'll change my oil first. I don't remember quite how old it is and it's viscosity could be out he window causing some of the smoking i suppose?

Last edited by krissetsfire; 03-14-2012 at 02:26 AM.
krissetsfire is offline   Reply With Quote
Old 03-14-2012, 09:56 PM   #6
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2008
Location: Tucson, Arizona
Posts: 889
Total Cats: 55
Default

cylinder 1: 175
cylinder 2: 170
cylinder 3: 165
cylinder 4: 90 (boooooooo!) w/ oil in cylinder 150...
krissetsfire is offline   Reply With Quote
Old 03-14-2012, 10:02 PM   #7
Senior Member
 
Join Date: Aug 2010
Location: Arl. Texas
Posts: 937
Total Cats: 23
Default

These motors are a dime a dozen. Get a new one. Feel free to do a comp test before you buy it. Even if its on a shelf at a JY, or where ever. They will still turn and give you an idea of the condition.

Or rebuild this one.
Miater is offline   Reply With Quote
Old 03-14-2012, 10:20 PM   #8
Senior Member
Thread Starter
iTrader: (1)
 
Join Date: Sep 2008
Location: Tucson, Arizona
Posts: 889
Total Cats: 55
Default

i've gotten a quote for a rebuild before it seemed unreasonable... what should a reasonable price be? Also if i were to go with a 1.8 is there any additional costs outside the conversion kit from flying miata and me having to get a new turbo manifold? think i read i can use my same clutch and what not

Last edited by krissetsfire; 03-14-2012 at 10:53 PM.
krissetsfire is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
Moroso Air Oil Separator Catch Can Aroundcorner Miata parts for sale/trade 2 10-01-2015 04:20 PM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM


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 07:02 PM.