Pocket Trey

When I stop the car after running at average speed and for more than 10 minutes, I lift the hood up and smoke from the manifold side elevates. Also it smells like oil so I am sure there is no rubber melting there.

Any suggestions?

I cannot find the leak without pulling all of those parts off.

thanks.

djessence

Is it smoking from where the reactor joins the exhaust pipe. These cars burn oil so if its leaking exhaust it could be that?

swbtm

iTrader: (2)

Check that your OMP lines are still connected... the clear one's running to your carb/intake (depending on setup) If those come loose they would drip oil onto your header or surrounding area

If this happened and you are not running premix... then this might be a bad day

Pete

Pocket Trey

sorry but I have no clue what you mean.

This is my first rx7 and i dont know anything about them. I do have the book but the pics are not great, plus being an older car I don't know if any mods were done when disconnecting the air pump.

I really cannot see where the leak is at. i can't see any oil but the smoke is evident when I stop the car.

Pocket Trey

by any chance do you have any pics of this as you comment it?

i see that everything is tight and connected to something, however some hoses are not but i am almost 100% sure they are part of the smog syst.

thanks

djessence

OMG reading your other thread i believe your OMP lines are disconnected.

The OMP feeds oil into the carb to lubricate the internals of the combustion chamber.

The OMP looks like a small throttle body on the passenger side of the front cover (front alumunum cover on the engine. These hook up tot he carb.

DL the FSM in my sig. Read about the OMP. BEFROE you drive anymore. These cars NEED oil in there either through premix or OMP.

I was refering to exhaust leaks betweent he thermal reactor (cast iron brick of a exhaust header) and the pipe leading down to the cats and resonators. Reading your other thread I am agreeing with swbtm with the OMP lines

Pocket Trey

I saw the two plastic tubes from the the metering pump to the carb. They are connected. One of the tubes has oil inside the other did not. I guess is cause the car was not running. I will check later.

I took it to the shop and the guy said that the smoke is my oil pan gasket. He said that because is leaking out of there that I get the oil burning smoke.

I tend to think that that oil there does not get hot enough to smoke out. (MAYBE IM WRONG)

As far as reading your sig I can't yet. I guess I am going to have to post like crazy today to be able to see it. LMAO

Thank you though.

If you have any more suggestions please shoot them.

Pocket Trey

There was an exhaust leak at the joint where the manifold connects to what should be the c\at converter(it's not there anymore)

Is that what you were talking about? Is that the reactor?

New gasket was put on and no exhaust leak present now.

Thanks

Pocket Trey

About the other thread:

The two disconnected lines I found are the ones that connect to the Cat Converter. No oil from them. But thanks for the concern. Good thinking.

Pocket Trey

One more post and should be able to see sigs now. YEYE

swbtm

iTrader: (2)

http://www.wankel.net/~krwright/cars/rx7/manuals.html

these should get you started in respect to reference material

I'll take a pic this weekend while i'm putting my engine back in...

Pocket Trey

Thanks

I found the metering pump and the oil lines to the carb. Everything is well connected and tight.

There is no more exhaust leak and I still have A LOT of smoke coming up.

It starts where a brick looking thing that I beklieve is the heat riser cover. Should I take that off and look iside there? Sometimes the b\olts on those heated areas need to be heated with the torch before attempting to remove them. I don't have that kind of equipment in my garage(YET)

I'm afraid the bolt may snap while it is still inside.

What are your suggestions?

djessence

My heat shield and reactor came off no problem. attempt it first and if they dont you might try something else. I wouldn't imagine head does anything as those bolts get soooo hot every time the engine is run but i dont know for sure

Pocket Trey

Thanks.

I will try it this weekend and see if there is something there.

I am debating between that and the oil pan gasket. An ato mechanic told me it was the oil pan gasket but I just don't think it gets that hot down there, but I may be wrong.

I know these engines run hotter than other, but I would think that the oil that is inside the pan will dissipate the heat and for that not be as hot as other parts of the engine.

What I meant by heating the bolts is the very reason you mentioned that because they get so hot when they are run that when you take them off you have to heat them up to so that they expand and loosen up from the threading.

Pocket Trey

I caught on fire now. About 2 seconds on fire. I beilieve that in fact yes there is some sor of oil burning there but it is impossible to see it.

The part that caught on fire is the reactor's cover or heat riser. There is a heat dissiopating mesh there and that caught fire after shut down.

It always smoke from that very point too, but cannot see oil or anything else for that matter.

Any suggestions. I am not driving it until I get this cleared up.

I need help guys.

Thanks
Juan

djessence

take off that cover see if there is an exhaust leak, mine does that too and its a loose connection/rust holes

Pocket Trey

Would you say it's safe to drive with the cover off?

I already broke one of the thread stud on the cover

swbtm

iTrader: (2)

are you just talking about a heat shield between the intake and the header? If so then you can drive the car without it... your intake temps will just go up a bit and you might feel a loss of power

With the shield off you might be able to see directly where the leak is...

I don't believe that a heat shield came stock on the engine

blackdeath647

iTrader: (2)

spray some pb on the studs, let it soak for about 3-5 minutes and then they should be a lot easier to take off. as far as the shield goes, yeah it should be fine, just be careful not to get your intake too hot. maybe that'll help you see where exactly your leak is at.

PercentSevenC

It did.