flooding out FC3S4 N/A

[NoDOHC]

You may have a serious vacuum leak.

My '86 was exactly like that when I got it, the vacuum line to the brake booster was MIA.

If the car runs when flat on the floor and not under any other circumstances, it is likely to be either the TPS, MAP, or a vacuum leak.

I guess I could see the vacuum line to the FPR missing or improperly connected.

Does the car still have all the emissions intact?

I think that a fuel pressure gauge would do you a lot of good (determine if your FPR is bad or malconnected or you have a plugged return line.

I have known people to try the ingenious plan of crimping off the return line to get more power (some old truckers used to do that with reasonable success on ancient diesel engines). It doesn't work with a gasonline engine. Infact to get more power out of a stock rotary, you need LESS fuel.

[Shadow24v]

well, for one i saw that the hose connecting the primary fuel rail to the secondary has a nasty kink in it. That might be causing the issue.

As for the varnished fuel, is it that hard to drop the tank? it looked like 2 straps and it'd come right down.

AFAIK it has all the emissions stuff still attached, its a relatively untouched rx-7

Wile i can't spot any missing vacuum lines it doesn't mean that some of them might be bad.

the leading coils checked out and it DID run, the issue i believe is in the fueling side.

I have a set of known good injectors, the secondaries were swapped by the seller but not the primaries. I want to swap them after seeing the fuel i pulled out, but i don't know what gasket to get to replace the one between both upper and lower intakes

[Rx-7fetish]

Originally Posted by Shadow24v

I want to swap them after seeing the fuel i pulled out, but i don't know what gasket to get to replace the one between both upper and lower intakes

http://www.mazdatrix.com/getprice.as...m=13-112A-N326

Its this one

[Shadow24v]

^ -- thanks i was able to order one from NAPA for now although i don't know if ill need it anymore

I did a lot today, oil change - the old oil, if you can call it that, was almost more fuel than oil. had a heck of a time getting the old filter off, had to drive a screwdriver through it about 5 times and use it as a lever to finally break it loose. also put in a new fuel filter, new leading plugs and new plug wires and the j-yard trailing coils i got yesterday. re-did the battery terminal connections on the wiring harness.

still can't find the clutch system leak though, slave cylinder and hose to the MC are dry as a bone and it doesn't LOOK like the MC is leaking but that's about the last thing to look at and replace. lifetime remaned for $79 from oreillys possibly. you get about 6-7 clutches before the reservoir is empty again.

i DID drive it around the block though after the oil change and all that and adding a gallon of 89, i said "well if it floods ill be swapping injectors but if it runs, GREAT!" and on about the 3rd crank (starter seems weak or strong depending on a whim, i wonder if its wearing out as it also gets stuck sometimes) it started to pop and then caught. revved up to 3K and slowly idled down to around 1000ish before i turned it off after i set the smoke detector off i pulled it out of the garage and started it up again and drove around the block taking it to 7000 about 3 times or so, but it was smoking blue smoke like a SOB, i hope its just cleaning itself out and will clean up in time but.... i parked it after one lap and getting the coolant temp about halfway up the gauge as it was beeping at me (i think it was a low fuel warning as only that and the rear hatch idiot lights were on. the rear hatch needs adjusting to latch one side and trip the sensor i think)

Any idea why it would smoke like it is? bad oil seals? over-filled oil? (i put 5 qts in...) or something else? it seemed real smooth except for some popping on de-accel and a lumpy low idle around 500 or less after warming up. pulled pretty good too

[Rx-7fetish]

Originally Posted by Shadow24v

I did a lot today, oil change - the old oil, if you can call it that, was almost more fuel than oil.

Wait, you had fuel in your oil?

Originally Posted by Shadow24v

still can't find the clutch system leak though, slave cylinder and hose to the MC are dry as a bone and it doesn't LOOK like the MC is leaking but that's about the last thing to look at and replace. lifetime remaned for $79 from oreillys possibly. you get about 6-7 clutches before the reservoir is empty again.

Reach up inside your car were the master cylinder bolts to the car, mine was leaking past the plunger.

Originally Posted by Shadow24v

i pulled it out of the garage and started it up again and drove around the block taking it to 7000 about 3 times or so, but it was smoking blue smoke like a SOB, i hope its just cleaning itself out and will clean up in time but.... i parked it after one lap and getting the coolant temp about halfway up the gauge as it was beeping at me (i think it was a low fuel warning as only that and the rear hatch idiot lights were on. the rear hatch needs adjusting to latch one side and trip the sensor i think)

You did let it warm up before you took it to 7 grand right? If you didnt that was a bad move..... The beeping could have been anything, i dont get a beep when my fuel light is on, the beeping is kind of like a check engine light for an s4, the pattern of the beeps lets you know whats wrong. Check the other forum in one of icemarks stickies for what each pattern means

Originally Posted by Shadow24v

Any idea why it would smoke like it is? bad oil seals? over-filled oil? (i put 5 qts in...) or something else? it seemed real smooth except for some popping on de-accel and a lumpy low idle around 500 or less after warming up. pulled pretty good too

Idle should be around 750 i believe, below 500 is definitely to low. Did you everr inject any oil into a spark plug hole to try to build compression? or did the previous owner try this, the may have used to much, that would explain a lot of smoke. How long is your block because if they didnt thats a very bad sign. If your block is short you may not have driven it long enough to notice any overheating of the engine.

Glad you got it running though, it feels good to make something work, even if its not perfect lol

[Whizbang]

Originally Posted by Rx-7fetish

Wait, you had fuel in your oil?

typical with flooding cars.

[Rx-7fetish]

Originally Posted by Gravity Fed

typical with flooding cars.

Wouldnt this mean bad seals though??