88 mazda rx7 smokes alot when first turned on and after it sits for a couple of hours

Asked by Aug 16, 2010 at 01:39 PM about the 1988 Mazda RX-7

Question type: Maintenance & Repair

9 Answers


if it smokes bad then u need a rebuild if ut doesnt smoke that bad then its fine. rotarys burn oil by design


depends on what kind of smoke its blowing it either be your oil rings or a bad water pump


If it's white smoke and it smells a bit sweet it's likely coolant. Black smoke is normally an extremely rich running engine. Blue smoke would be excessive oil consumption, but a little blue smoke on startup is normal as the oil collected in the combustion chambers during the engine downtime is burnt off.


hey kid its a rotary not a conventional piston engine. it doesnt have an oil ring


True, but it does have oil seals on the rotors.

2 out of 2 people think this is helpful.

Oil control rings are shot, sadly, the motor will have to be pulled down.


maybe you should do some homework!

1 out of 1 people think this is helpful.

truth is there are a few deff things that could cause this issue. most common witch includes your symptoms would be coolant seal. get on youtube and learn how too do the champagne test. take a smell of the exhaust on start-up for sweetness and watch coolant fluid levels and overflowing and/or pressure build-up in reservoir. my guess is your prolly looking at a kit-c gasket rebuild. good price at atkinsrotary.com or if your looking to spend a little more and replace engine NA or Turbo, then check out jspecauto.com


and Zachary. you may be in school and may have read up on rotary, but please, at least break a nail or 2 before you start getting pissed off... remember, your still in the stage of theorizing.

Your Answer

Add photo

Related Questions

  • Engine Smokes 4 answers

    When I start my car after it sits for a couple of hours it smokes alot. After it warms up a bit the smoking stops until it sits for 2 or more hours. What is problem? Can car pass smog test?

    1986 Mazda RX-7


    Maintenance & Repair

  • 86 Rx7 help 3 answers

    i need the emissions wiring harness for my 86 rx7 the one on the passenger side and sugg. where to buy one

    1986 Mazda RX-7


    Maintenance & Repair

  • How much does it cost to replace the clutch on a 1992 mazda Rx7 3 answers

    The clutch has worn out and needs replacing its a 5 speed

    1992 Mazda RX-7


    Maintenance & Repair

  • How much is this 1979 mazda rx7 worth? 1 answer

    Ok so ive been doing house work for this lady and she asked me if i could help clean out her dads garage because hes way to old. no joke there was so much junk in the garage i didnt even no there was ...

    1979 Mazda RX-7



  • smokes in the morning or when sits for hours 4 answers

    runs great other than that that it smokes for about half mile or so in the mornings or when i let it sit for a couple hours it is oil you can smell it . other people with this kind of car has same pro...

    1993 Mazda MX-5 Miata Limited


    Maintenance & Repair


Looking for a Used RX-7 in your area?

CarGurus has 51 nationwide RX-7 listings and the tools to find you a great deal.


Search Mazda RX-7 Questions

Mazda RX-7 Experts

#1 Lars Cats
Lars Cats
Reputation 370
#2 tennisshoes
Reputation 130
#3 Tom Demyan
Tom Demyan
Reputation 100
View All

Related Models For Sale

Used Toyota Supra
40 listings starting at $47,888
Used Ford Mustang
396 Great Deals out of 47,365 listings starting at $1,999
Used Nissan 240SX
17 listings
Used Nissan 300ZX
125 listings starting at $3,995
Used Chevrolet Corvette
98 Great Deals out of 20,444 listings starting at $3,495
Used BMW M3
39 Great Deals out of 1,702 listings starting at $4,544