tajabaho1

Hey guys, I've been reading up on alot of the stuff posted here and some other websites listed in the stickies

however, I can't seem to wrap my head around some of these problems

ok, so I got a 93 VR FD

my car has 2 problems right now

1. There's coolant everywhere!!!! but I think it might have been my fault or something because when I got the car, the coolant was low (gauged by the coolant overflow tank) so I put the coolant in via the middle highest radiator cap. however I think I might have overdone it cus I poured a gallon of coolant into my car, now sometimes she would start, sometimes she wouldn't

when she starts, there would be coolant leaking from where the downpipe hits the midpipe........and I know it's coolant cus it still retains that greenish color, even though it became black when it came out. and theres a load of white smoke coming out of the back of the car.

my question is, will this go away if all I did was add too much coolant? or will this permanently destroy my engine?
did I blow a coolant seal just by adding too much coolant?



2. my car won't rev past 1.5k RPM, it seems like it's in limp mode or something, my engine oil and OMP is in but the coolant light says "add coolant" and the temp sensor is broken, can this cause the ECU to go into limp mode? (it's a PFC)

it has a twin turbo simplified in it, the turbo seems to be doing fine but there seems to be a load of coolant going through my system right now, maybe that's causing the car to stall @ 1.5k rpm?

now she doesn't bog down @ 1.5k rpm, she simply stalls and drop down to about 1k rpm and all is normal again.

thankyou for your time in reading, I hope I get this car working soon >.<

zack4173

iTrader: (3)

How can you overflow the coolant that doesnt make any sense. You fill it to the top and then you burp the system its not supposed to be complicated. If you have a whole lot of white smoke coming out the tailpipe that definately sounds like a blown coolant seal. Sorry for the bad news.

tajabaho1

^ ok update

I poured coolant in when it was cold and not running, and when I cranked it there was coolant pouring out of the back part of the throttle body

The car started up about 3-4 hours ago and there were loads of white smoke out the back, so I drove the car round the block (not passing 1.5k rpm) for about 10 minutes and came back and let her idle for a bit

she idles fine, that's the funny bit

I shut the car off, and started her again, this time she started without a problem, and no white smoke 0.0 so it seems she starts warm just fine

so I let her settle down for about 3-4 hours and went out to try and start her again

lo and behold, she won't start, and there's a load of backfire from the exhaust -_-

socalrotor

iTrader: (1)

where are you located. Maybe I can stop by and have a look. Sounds like a blown hose, or bad seals.

tajabaho1

I'm located in Westminster California

right where the 22 hits the 405

Gardengrove blvd

Teerx7

iTrader: (2)

don't tell me that you traded your rx8 for this peace of crap fd!!! but if your problem still persists I might be able to go down and check out whats the problem...

send me a pm, if help is still needed.

Hitokiri_Gensai

iTrader: (2)

yeah thats really sounding like a coolant seal issue...

but then you mentioned that there was coolant coming from the throttle body?

its possible the throttle body is cracked and its draining coolant into the engine so it MIGHT not be the seals... id check out the TB and make sure there arent any cracks or anything that could drain coolant into the engine...

if thats not the issue...

it really does sound like a coolant seal...

once the engine heats up the metal expands and closes the seal off a bit, maybe just enough to stop coolant draining in...

tajabaho1

yes I did, all cus you wouldn't trade with me.....it's all your fault lol

jk

its really hopeless cus if it does turn out to be a coolant seal, then I'm gonna have to rebuild the engine, and I don't even have the money to do that, let alone for future stuff..........so I guess my only option is to sell her, which is what I'm doing

I'm asking for 8k only which is basically a roller chassis + the engine, transmission and the mods.............

hopefully someone else can restore her to a great prestigious condition T.T

Mahjik

iTrader: (1)

If you have coolant coming out of the dp/mp connection, that pretty much means it's coming from your combustion chamber (i.e. failed/damaged coolant seals).

adam c

iTrader: (2)

First check for a leak in your cooling system. If you have a bad hose, that could be your problem. Did the problem come along suddenly? If it did, its probably a leak, and not a coolant seal.

Mahjik

iTrader: (1)

That wouldn't necessarily explain the coolant coming out of the exhaust system. Unless this bad hose was somehow routed to the O2 bung.

darkside7

iTrader: (12)

sorry to hear your having problems.

adam c

iTrader: (2)

Some people have bad mechanics

First of all, I seriously doubt that enough coolant could be pumped into the combustion chamber to allow it to puddle into the exhaust system. The coolant "should " burn, and come out the exhaust. In addition, you would have to have a pretty bad exhaust leak for coolant to leak there. It is most likely that we have a bad hose that is leaking in the area of the back of the engine.

Mahjik

iTrader: (1)

Not really. When the engine isn't running, the coolant will pool into the lower portion of the combustion chamber. At first start, all of that will just get pushed out the exhaust ports not burned. If it just burned instantaneously, we'd never have flooded motors.

djseven

iTrader: (56)

True, a friend of mines fd would spit coolant out the exhaust on cold starts in the morning, never did foul the plugs though, but would always spit unburt coolant out the exhaust on cold starts. Seems the OP has a coolant seal failure. Atleast he has the cheapest platform for a rebuild unless the engine in the car has excessively high miles on it.

tajabaho1

It has very low miles on it

which is why I really don't F'ing understand why a coolant seal would go so quickly -_-

right now when I start it up, there are white smoke only @ start up and quickly dissapears, and the coolant from the midpipe doesn't seem to come from the midpipe it's self, but seems to trickle down from there......... is there a hose in the back there somewhere?

my car still has the issue of not revving past 1.5k rpm (when the turbo should kick in right?)

my boost controller, which is wired to the turbo doesn't work, could that be why?

Mahjik

iTrader: (1)

I would suggest you start by finding out where the coolant is coming from. I've seen motors get built and a coolant seal is pinched during the assembly. Not saying that's what happening with your motor, but it can and does happen. Start by putting the car up on jack stands (or a lift if you have one available). Run the car and look for coolant dropping to the ground. See if you can trace it back to its source.

djseven

iTrader: (56)

The only way I could really see coolant getting that far back is if it is the coolant hose that runs from the rear iron on the engine to the throttle body leaking or on of the coolant lines for the rear turbo. I have still never seen the coolant trickle down that far but I guess it is possible.

adam c

iTrader: (2)

Yep. Most likely a coolant leak. I wish someone had mentioned that sooner .

tajabaho1

ok, I teared down the car a moment ago (Fresh ) and I noticed that there is a hose on top of the rear rotor has been cut and stubbed with a screw........I read in the tech PDF file that that line is a coolant line and normally routes back to the throttle body? that line is snubbed and the throttle body has only 1 coolant line going to it which is the one that comes from the radiator filler (water pump?)

I took the spark plugs out also, and the 1st rotor plugs are really really clean, no black spots or anything, however, there were oily stuff on the sparkplugs

the second rotor sparkplugs are all black........