RyosukeFC3C

Hey,

I searched and got no luck, and instead of making two topics i'll cram it all into here :P

1. First up, my oil pressure, it's sitting around 20 maybe on idle and when driving around town, when i boot it, it'll go up to about 40 but not more. I've only recently bought the car but the workshop who owned it prior said they were using 20w/50 oil, we've had it on the hoist and i can't see any oil leaks.

It's a 13bt extend port, rebuilt with 3mm seals, S6 e-shaft and stationary gears, remapped ecu, could this be a product of the engine or should it be up high like 40 and 60 like standard cars?


2. My idle, we pulled everything down to get a good look at the engine bay, and i cleaned out the throttle body to get rid of all the carbon. Now before we did this it was idleing at about 800-1000rpm when it was warm, now, it idles at about 2200rpm even when its warm, it'll start up cold, sit there on 2200rpm, and stay there, starting hot is the same thing.
Is this a normal thing to happen when you clean out the throttle body?
Also, we disconnected the throttle cable while doing it, could we have put it on wrong or something to screw up the idle? (probably not just checking)


anyways, if it is cause of the cleaning, how can i set it to a lower idle? like 1200rpm or so i want, i know there's alot about the BAC valve screw, but is there actually a write up on it? i went to http://www.teamfc3s.org/info/articles/idle.html but theres no pictures and theres no real explanation for where to look for this screw and how to adjust it? do i start fiddling with it while it's running all warmed up?





oh, one more question 3. i have the "heat" light on, on my idiot cluster, and i have no idea why or what it means, i run steady temps (from an aftermarket guage) of 85 degres celcius fully warmed up, to 90-95 absolutely flogging it, and the standard guage is still working and is always about midway up the scale.

Is the heat light even related to the temperature? anyone know why it's on?



sorry for all the newbish questions

RotaryEvolution

iTrader: (30)

1) you need to verify the oil pressure is in fact low so use a different mechanical gauge and check the oil pressure at the stock sensor port. if it is low then you either have a worn out oil pump or a faulty front cover o-ring. worn stat gears can also cause low oil pressure but this is uncommon for a rebuilt motor unless built improperly.

2) sounds like you have a pinched coolant supply line to your thermowax or a sticking throttle linkage, check that the line off the rear iron is not pinched and the one leading to the BAC and water pump is not pinched. if they look ok then make sure the throttle is not hanging up on something or sticking due to residue/dirt/grime.

delirium13

hrmm about the car idling really high. i have a 91 and mine does the same thing. now depending on how long since i last drove the car this is what happens(in warm or cold weather).

if i just was driving it about 5 min ago up to an hour or so the car will start up and the idle shoots up for just a second then drops back down. when it drops back down it will jump up and down from 1grand to 0 (basically stalling out, dont know what thats about)

if i start it up after sitting all nite, or day(long enough for the engine to completely cool down) the idle shoots all the way up to about 3 and a half grand. now theres 2 options i was supposivly told to do here because this is "normal?" by what i was told...
1. let it sit and the idle will drop back down to normal after about 30 seconds
2. give the gas pedal a quick tap and it will drop right back down
now here it does the same thing again, it drops up and down until it will eventually stall.

i was told by a friend who owns a 89 that his does the same thing and its completly normal for it to idle that high. i dont know if its true or not but i have been driving the car with this going on for about a year now and it seems like it hasnt caused any engine damage or anything(im by means no mechanic so thats just by my judgement) sorry for how long this was hopefully it was maybe some help to you(i know i didnt explain WHY it does it, but you will be able to judge when its gunna jump up like that and that its supposivly "normal?")

RotaryEvolution

iTrader: (30)

it's called cold start assist, it is normal for the idle to go up to 3k for 30 seconds on a cold start unless you disable the system and then you will still have to manually hold the idle up a little bit because rotaries idle low when cold until everything warms up.

delirium13

yeah me the moron, just read about it in the "faq" section in this section of the boards. lol


"My RX-7 rev's up to 3000 RPM everytime I start it when cold
Yep, part of the accellerated warm up process. Start the car with the clutch pressed in, and the car in gear if you don't want it to do that."

RyosukeFC3C

Hmmm, I'll be getting a new mechanical guage for this asap, if the front cover o-ring is faulty how do you replace it? is it a big job?


hmmm, we may have put it all back together wrong or something

RyosukeFC3C

oh, and about the heat light


only comes on japanese cars apparently and is a light that is normally hooked up to the cat converter and will come on when the cats blocked or is heating up too much, so yeah, nothing to worry about