MicahMan

i am 17 and i have a 83 gsl carburated 12A and i am driving the car in the cold wintery wisconsin area. i have had a power loss. 2nd and 3rd i just dont have the power that i used to. i checked all my fluids and the oil was a little low and i noticed some creamy like sludge around the top of the oil fill tube. i want to know if it is just moisture that got in there or is it antifreze. i was told that it could be moisture. i pulled the plugs and they are not discolored by the coolant. pluggs are fine. and the coolant level is perfect. now about 2 months ago i had a coolant problem with my car but that problem went away after i did a few things. i need help, i want to know if anyone has had any problems like this and if so how would i fix them. thank you for your help it is appreciated greatly.

slashdawg00110

Are the emissions (rats nest) removed? If so, you'll get that sludge (lung mustard) in the filler neck if you don't vent properly. Look at the last entry in the FAQ or at another post today about ventilation -> https://www.rx7club.com/showthread.p...hreadid=262029

MicahMan

ya i have the air pump and all that stuff removed but why the power loss. it has been fine for months and now it just has no power.

slashdawg00110

I don't think the two are related. You do need to take care of the sludge thing, though.

Are you talking about power loss at WOT or all through the curve? Replaced the fuel filter recently?

MicahMan

no i have not messed with anything with the car since i bought it 1 year ago. it ran pretty bad when i got it but all i did was rebuild the carb. then it ran top notch until last week. bamm i had the los of power.

pratch

Check fuel filter - loss of power is a hallmark of a sludged or nasty fuel filter. $3 Autozone

The sludge is as they say covered in proper crankcase venting as outlined in the tutorial in my sig.

pratch

you get this fixed?

MicahMan

nope not fixed.
it is so poor on power.
seems like 1 rotor is not firing until it runs for a while. why could this be?

coldy13

Check through the whole ignition system. Get a new dizzy cap & rotor, new plugs and plug wires. Make sure the coils and ignitors are good.

Go borrow a compression tester from someone(or just buy one) and make sure the compression is even and good on both rotors.

If all of that checks out okay and doesn't fix it, then you've got a carb/fuel problem.

slashdawg00110

i agree with coldy.

Do you have an inductive timing light? You can check for spark on #1 leading while it's warming up to see if you're really not getting spark until it's warm.

HIMNI Racing

Your link/sig had nothing but " There is nothing here" & "go away now"

Any real links to the tutorials?

MicahMan

thanks guys ill check for even compression tonight. i alraedy got new cap and rotor also plug wires too.

pratch

Tutorial link fixed. I switched boxes at my host. All better now

MicahMan

went to check for compresion and antifreeze came pouring out. so my rx7 has died.......dont worry i have another rotary engine im putting in. thanx for all your help guys.

pratch

Be sure to take it apart - it could just be seals. If so, $170 worth of seals/gaskets, and you're back in business!

MicahMan

im putting another engine in and im going to rebuild the one that is leaking antifreze.