20 Most Recent 1993 Mazda RX-7 Questions & Answers

1st, need to get a compression test. No problem with taking it to redline. Low or short shifting actually do more harm to a rotary than letting it rev.

Afraid that is integral engine. The oil control ring o-rings are failing or the oil control rings are worn out.

Hot water or air rises , water inlet goes in the lower part of the engine and exits at the highest point ,the thermostat control element must face the hot water.

Afraid you probably have engine issues. White smoke was water. clanking could have been apex seals. You need to have a compression test done.

Have you checked all the tubing cuplings? When mine was doing that i had a cupling that would keep sliding off just enuff that it was letting out air and loosing me boost.

I would want to know if the computer is grounding the fan relay to make it come on, or if the relay is faulty. On some models the computer turns the fan on to keep the radiator from overheating when the engine is stopped, but that should only happen with the engine at operating temp.

gaskets not in good shape... if the leak is coming from the engine block... I'd have all the gaskets checked... and possibly rebuild it replacing all gaskets.

let me look this up in the morning on all data ill comment more once i look at the break down of yours, ive got a 1st gen 82 rx7 but mine came free once the bolts were out...
umm did you pull the hydrolic clutch arm at the top of the bell housing???
that would allow you to move the engine out a bit and stop you if you didnt take that out????

test for spark, then test ignition timing. then ensure its getting the correct amount of fuel at the correct rate

One or more of the freeze plugs in the back of the block is leaking. You'll probably need to remove the clutch or torque converter and flywheel to replace it.

what color is the smoke??

Guide to smoke color
are few exceptions here but for most part

Blue smoke -burning oil- bad rings or bad valve guides

White smoke a little is normal after start up (condensation in exhaust pipes) large amounts - blown head gaskets

Black Smoke - running excessively rich

Hi,
What exactly are you after here? The sensor positions or water pump positions, please let me know and I can forward these to you.
Thanks
Jason

Unfortunately, yes. Your vehicle's CPU is responding to your change. The only thing you could try besides replacing the factory sending unit is to try to ground the old unit. Maybe, if you ground the old sensor or complete the circuit in some fashion. Right now the old unit isn't returning any info to the CPU and the car is designed to assume the worst. Its not that often but every once in a while we get ambushed by good engineering instead of bad. Sorry. Good Luck.

Look for restrictions in the intake air and exhaust systems. Check fuel pressure and delivery (fuel filter/pump). Check the ignition system as well. If the engine has a lot of miles, you may be experiencing combustion seal wear. These are amazing engines when they work correctly! Good luck!

yes, disconnect the battery and clean up the terminals, reconnect and make sure there tight (apply a bit of copper grease), if it still does'nt start (even under a jump start) you should check out the starting solinoid.

no, they are not repaired, they are replaced.

Firstly, check your engine oil level. If the level is low, the rocker arms in the cylinder heads can tap tap tap... This may be why you're getting an engine light. Check the oil pressure gauge for a reading. If the oil pressure and level is ok, you can run an oil cleaning agent thru your motor with the oil and then do an oil change. Sometimes you can quiet a noisy motor that way.
You could also use a high-mile oil in the motor and see how that works. You can also add an oil additive to help quiet older motors..
hope this helps you.
K

how does the exhaust look? when you rev up do you see blue or black smoke? if black smoke it just might need some new spark plugs and injector service how ever blue smoke is a sign of worn comperssion seals,which means an engine tear down or replacement, the choise is yours, it a good rebuild platform if you are up to it.

the coolant should flow from the radiator into the reervoir as it heats up. When it cools, the fluid flows back into radiator.
Check to be sure your cooling fan is coming on when the engine gets fully warmed up, and when you urn the a/c on.