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

45

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

5

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

4,755

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.

45

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

4,755

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

2 out of 2 people think this is helpful.
45

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

45

maybe you should do some homework!

1 out of 1 people think this is helpful.
115

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

115

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.

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