hey guyz .. am NEW here...and i just bought a 1997 efini RX-7 its done about 66,000 km ..
am totally new on rotary engines .. am use to skylines so am a piston guy mostly ..

ok .. i took that car with its problem .. it was standing for a long time ..

when i start the car .. it like its running in one rotor ... i have to open the throttle .. it wont idle .. i have to run it at 2000 rpm ... when i 1st start it .. it had ALOT of white smoke (oil) .. then after reving it for a while .. it all cleared up .. maybe built up oil in the intercooler or something .. not sure though
anyway ..
its too slow .. its not picking up rev's fast ..

there is boost about 4-5 psi once i rev it and once it reach i guess 4500 it drops back to 0 then back up when i rev it to 8000 ..

i open the plugs .. i found the rear rotor's plugs are wet ..!! front rotor's plugs are good ( dry carbon )..

change plugs .. SAME no change at all ..

checked for spark ... there is spark in both plugs of the rear rotor ..

DIDNT do any compression test .. i'll do it soon ..

any help . other then compression test ..?????

....

another problem .. not sure ... is its normal that the engine over heats when u rev it while stand still ..?? .. i mean it was running on 2000 for about 5 mint ... then i rev it to 5000 - 8000 .. for about few sec .. then back to 2000 .. did that few times ..
the temp went all the way up .. i left it to cool down .. but it takes too long to cool down .. more then what am use to see in normal cars ... anyway .. i sprayed water to cool it down .. is that a problem .. or its just the rotary gets hot fast .. keep in mind ( STOCK radiator )


any info will help alot ..

thanx in advance guyz ...

 

Sorry to say my friend but it's rebuild time.

 

Get a compression test, and avoid overheating it from now on. I'd verify that the thermostat is opening, and check the rest of the cooling system as well. There is no way that they car should be overheating in neutral......You can warp one of the aluminum rotor housings if you keep overheating it, making your rebuild even more expensive.

 

just did compression test ... front rotor 127 psi .. rear rotor ZERO psi .. loooool ..

i think .. i'll put a new engine in .. i wont bother rebuilding it ..

but isnt it funny that it got Zero pressure in the rear rotor .. ??

and any idea how much it will cost to rebuilt it ..?????

in our country rotary is not really common at all ... if i would like .. i can swap with RB26DETT GTR engine .. cheaper then redo this engine ..

but i still like to run it as rotory .. .. its like a challenge

thanx for the help all ... i will ask alot in the future .. ..

 

BTW .. any suggestions regarding the engine ... is there an engine better then the 13b rew ????? ..

which comes as direct swap ..?? or lil modification only

 

A direct swap is another 13b from another FD. Yes their are engines bigger such as the 20b. 2 litre rotary which is very expsensive... they have to be created... they were not built out of factory..

 

God damn thats high for front rotor!..... Freshly rebuilt ones are normally around 8bar (116psi approx.)

 

There is no way in hell that an engine swap is going to be cheaper or easier than fixing what you already have. LS1 maybe... not some obscure **** like that.

 

Buy a new 13b rew engine from Mazda (~$3,500). Read this forum everyday and night for the next month and then you will know how to upgrade the **** outta it

 

yea i recommend you buying or rebuilding the rotory then doing some crazy **** like that too......you'll end up doing 4 times the work just to make the rb turn on...and much more to make it run right....

 

i can get the engine cheap .. we got them right from japan .. i got my contacts .. and its much cheaper then $3000 .. it will be between $1000 to $1500 USD .


what about the overheating problem ..???
mmm .. i'll check the water pump and the thermostat when i take out the engine ..
any advice regarding changing the engine .. i mean .. is there anything special i have to take care about when i take out the engine ..?

the vacum pipes in this car is really pain in the *** ..

 

hehe ... don't worry ... am expert in RB engines .. .. wont be a problem (( finaly i'll put it .. but not now )) ... the only thing i will miss is the handling of the car... it will be suck .. cuz the RB26 is tooooo heavy ..

ill keep it original as long as i can .. still wanna enjoy the RX handling and rotary noise at the track .. ..

 

FD without a rotary is like having a pool with no water! Your lose!