OK, my boost pattern is a litte erratic, nevertheless, the turbos do work. The question: how well? OK well when i drive my 7 below 3k rpm's and dont spool the turbos everything is fine, when i hit it and my turbos spool up and i get up into the 5k rpm range and up, i let off the gas and i get a huge cloud of white smoke out of the exhaust, im guessing the turbos are bad, any insight?

 

blue smoke= oil
white smoke= coolant/water

I imagine you may have popped a coolant seal in the motor. Keep a close eye on your temps and check your coolant level often. I imagine you will see coolant consumption.

-GNX7

 

i do see a lot of coolant disappearing, is my engine in any danger? is there a pic of where the coolant seals are so i can check em.... thanks

 

Coolant seals are in between the housing and plates inside the motor. When/if there is a coolant seal problem, it requires a rebuild to fix them.

 

damnit, where can i find some comprehensive info on rebuilding, and do you recommend a-spec?

 

Yep, take your car to A-Spec and let them check it out.

As far as rebuilding yourself, I would recommend taking it to A-Spec first.

 

mahjik, thanks a lot i really appreciate ur help, thank god a spec is 15 mins away

 

Ok just called A-Spec, wow $2400, that is pretty steep, what does a rebuild involve? My engine was Mazda direct remanufactured about 3000 miles ago, this couldn't be normal to have a coolant seal bad this soon, could it?

 

maybe your engine has a warranty...Also don't come to conclusions so fast, it probably still could be something else. Coolant in the intake? Brake mastercylinder leaking into brake booster and drawing up the vacuum assist on decel? Don't the turbos run coolant through them to cool them, maybe the turbos are leaking and burning on the hot exhaust. I'm a 1st gen guy so who knows, but under the FAQ of 2nd gen their is a way to check for blown coolant seal check it out.

 

Take your car to A-Spec and have them find out what's wrong with your car. Right now you don't know if it's a turbo or engine problem.

As far as when a coolant seal failure could occur? Sure, you can do it in a few miles if it gets overheated for any reason. Mileage doesn't really have anything to do with it.

Like I said above. You don't know what's wrong with the car, yet. So take it to someone to see what's going on before worrying about how much a rebuild costs.

 

i will do that, thanks everyone

 

can anyone tell me what a rebuild entails, what do they do, can i do it myself if i do need one??

 

If your motor is on the way out..try the blockweld thingy

"hey why not"

 

blockweld thingy.....ur gonna have to be a little more specific, still learning, thanks

 

ahhh no prob
www.scuderiaciriani.com/rx7/

when that site stars responding again its on there


blockweld is this **** your pour into your coolant system and it seals up any leaks...
some guys with rx7s have found it to work..and some have not....

but if your motor is toast, this may give you sometime to enjoy your car while saving up money to get a new motor or a rebuild kit

 

If you need to ask, you probably shouldn't be doing it yourself.


Good luck with it. Just curious, have you noticed any white smoke on start up?

 

i will have to try that, but can anyone tell me what a rebuild entails, what do they do? (on cold startup, yes, i believe there is a small amount of white smoke, i will double check)

 

I would imagine replacing the engine would be simpler job then rebuilding one, for someone new to working on engines.

Check to see what is wrong, and then check out what warranty came with your engine.

Don't ask what it entails again, until you have done that. For your own sake.

 

haha alrighty

 

A rebuild:

The engine is completely torn down. Engine parts are cleaned and carefully spec'd for tolerances of reuse. Whatever is not within spec (and you are talking EXTREMELY small tolerances) needs to get replaced. Next, the engine is reassembled with new seals and any new parts that needed to be replaced.

Rebuild kits alone start at $600 for the basic kit. Pretty much if you need a rebuild, you'll need the master kit which will be around $1000. That doesn't include parts that are out of spec (so a new rotor would run you about $600, new housing around $800, etc) or tools to actually do all this work.

As others have stated; if you don't know what a rebuild is, then it's definitely something you cannot attempt on your own. There is a reason shops charge a few thousand or so for a rebuild....

And remember, none of the above includes actually removing the engine from the car and then removing ALL the components from the engine to get to the point to take it apart (as well as doing the reverse to put it back in the car).