anyone know of any good intake manifold removal write ups so that i can change out all three of my gaskets..damn intake leaks..wish i knew which one it was but i figure changing out all three is just as well..anyways..just wondering if anyone knew of any or maybe would wanna write up a quick one..i would be much obliged ..or however that is spelled

 

there are lots of write ups already, look for porting intake manifold threads.

or the FSM or Haynes manuals.

 

http://devils.eng.fsu.edu/~bmatt/RX-7/emissions.html

 

Find the problem, then fix it. Don't guess and test, this is not grade 5 math.

You're more likely to create a vacuum leak than to fix one by simply changing gaskets. Very few hoem mechanics know how to correctly remove gasket material; they often create more gouges and untrue areas than they started with. Based on your guess and test method of finding a vacuum leak, it is unlikely you have much experience in the automotive field, and thus would probably create more problems.

Seek professional help, man.

 

No offense, but one can't learn by always letting a professional do the job. Then again, depends on caution, attention to detail and knowing when you're way over your head. Take your time, label everything and don't rush

 

ok to the ones who have helped thanks alot..i appreciate it..but however no thanks to scathcart..first of all you didnt have to be smart with your reply..second of all, all you had to say was best to get professional help..third you have no clue how much experience i have with cars..ive had my share of experiences and although im not a mechanic i know more than any mechanic around here when it comes to a rotary..and i know it is an intake manifold leak bc i found it using carb cleaner..but the spot i was spraying at i couldnt exactly figure out which manifold gasket it was..so honestly if i ask a question on here i dont really want your smart reply..thanks again

AJ

 

it really is not hard tto take an intake manifold off. But for the first time, make sure you take pictures of wiring and vacuum routing. It is way easier to re-install after removal of rats nest also.

 

A quick note: Removing gasket material without damaging anything is relatively easy. Make yourself a scraper by taking a short piece of copper pipe and flattening one end in a vise. You can sharpen it a bit with sandpaper if you like (just don't use a stone wheel, since soft metals tend to get imbedded in them). Copper is softer than aluminum, and generally won't gouge it unless you really try to.

 

While I agree, in general, a person must also factor in the cost of potential mistakes (having your intake manifolds/engine resurfaced), and with questions like above, mistakes are likely to happen.

 

You don't like my diagnosis? Tough luck.
-Your methods of fixing problems are guess and test. That's an expensive way to fix a car, and not even close to the correct way. What would you say if a mechanic replaced your engine trying to find the problem? Just silly.
-You can't figure out on your own, even with a comprehensive source (FSM) being widely available, how to even remove the manifolds, so honestly, do you think you can properly clean them? Not likely.

Based on this, I gave sound advice.
I have seen more of these cars messed up by ignorant owners...

 

After getting frustrating of reading a bunch of threads on the subject, I just started unbolting stuff. Hardknocks will make you understand it a hell of alot quicker than reading someones post on how to do it. And if its not coming off, it means theres another PITA bolt somewhere

 

LOL kenteth...

I agree. Someones got to have courage to just do it. And the experience from getting your hands dirty is always worth it.

How else does anything get done here on planet earth?

 

gaskets are pretty easy to change. dont let some rotary engine god tell you otherwise. engines are all basically the same. so are gaskets. i'm amazed at how many of the people who "know it all" dont even have cars that run. take your time and you'll learn. good luck.

 

I know absolutely nothing!!!!!!!!but my car runs great

 

ok first now im pissed bc you are implying that im an "ignorant owner"..thats a low blow considering you know nothing about me..two please explain to me how i am test and guessing..if the car cant idle to save its life and ive changed out all vaccum lines and checked every other possible thing and then spray carb cleaner on the manifold and the idle straightens out..how is that test and guessing..im not guessing if i know thats what it is..and three i have a haynes that i have read and i was wondering if anyone knew a simpler way to do bc i have asked on another forum about something and they showed me a much simpler way..and by the way what question did i ask that shows a mistake will happen?

and thank to the other guys or somewhat agree with me on this situation and that are giving me advice on doing it to learn..i appreciate that

AJ

 

actually i didnt see anyone point any fingers at anyone, just a general observation.

 

well im just saying that the way i see it he is pretty much calling me a complete idiot..and that i should just not even try..IMO

 

A couple holes in your story:

How did you change all of the vacuum lines without removing the intake manifolds? There are plenty of vacuum lines you can only access with the UIM manifold removed, but since you don't know how to remove it, how did you replace these lines?

If the car will not idle, how did you get the idle to straighten out by spraying carb cleaner on it? By revving up the engine? If you rev the engine, the carb cleaner trick does not work effectively.

How can you not tell which of the three gaskets it is? They are not all in the same spot.

Have you checked such common vacuum leak areas such as the injector grommets and solenoids? Of course not, you don't know how to remove the intake manifolds.

Plain and simple, you don't know what you are doing. Intake gaskets do not just blow, the only reason they ever cause a problem is from someone doing something wrong when reassembling/cleaning the intake manifolds. So either this is a problem from you or someone else messing up the intake manifolds, or your leak is (most likely) elsewhere.

And yes, there are other FAR more effective ways to find a vacuum leak than to spray carb cleaner on it.


While I am normally one for sending a person out with the correct information to do a project, I also expect a certain level of knowledge to be attained first. You have not attained such knowledge (as to the exact problem of the car), so I refuse to send a person off to do more damage than good. When you have corrected your nescience, I will be glad to tell you exactly how to do so.

 

alright kids....

89rxheaven, there arent any intake removal writeups, because its a fairly simple procedure. The gaskets arent prone to failure unless tampered with. And I am telling you now, original gasket materiel is a BITCH to remove. If you get a Haynes manual or what not, you can get yourself through it. Especially if you have prior vehicle knowledge.


Scathcart:

I totally respect your knowledge, but what gives? Why all the hostility?

Jarrett

 

love that double post action.

 

I spent the weekend fixing the problems caused by others on RX-7's, including a destroyed LIM.

This post caught my attention for that reason, and also due to fact that he was not doing work to fix his problem, but instead doing work as a guess to fix his problem.

How many "my idle is messed up threads" do we have b/c someone took out a flathead and turned every screw they could find on the TB just to see what they did? I am growing weary of people who go about mechanics with a cloud of inscience, such as this individual. I am getting to the point where I believe only a certain breed of home mechanic is capable of doing a job correctly; these are the types that will learn not how to fix something, but WHY it fixes the problem.

Coupling all of these factors with the holes in this guys story.... and well, you get my general response.

It would have been simple to ask if this was the problem, or how to properly clean a manifold, or how to properly remove them without causing damage to them (damage to the mating surfaces is especially common simply by removal and installation of the UIM on S4 TII's due to the 90 degree coolant hose by amateurs), but this is not what this individual is attempting. Instead of looking for answers as to WHY he has a problem, is is looking for a HOW to fix a problem.

And this bothers me. Its just another FC on the road that gets farther and farther from practical repair.

 

Well, keep this in mind.

Everyone starts somewhere. There are millions of threads concerning "my car wont idle" or " my car wont start". Yeah, they get old, but thats where most people start. All I preach is temperance. Nobody started with the knowledge that you have. And given half a chance, most people can and will come to understand the rotary motor.

Jarrett

 

ok thanks for picking out the holes in my story..glad to see you are trying to help and not call me out..so maybe i didnt get all the lines but i got everyone that i could which was alot..and when i sprayed it the throttle was not touched..it straightened out for maybe 5 seconds then went right back..and i know it wouldnt work correctly if i throttled it bc then it would pull air through there and wouldnt know if it was gonna straightened out or not..i also took it to a rotary shop to get a second opinion and he tryed the same thing and told me the same thing i had on my self diagnosis..i always get him to check behind me and i have been wrong plenty of times and im not really into hurting the car more than fixing..and my question wasnt why isnt it idling bc ive already asked the question on other forums and got the same answer..so why ask it?..and my question wasnt how to properly clean a manifold..all i asked was a simple effective way to remove the intake manifold which seems to me that the last one would have come inside that one question anyways..i mean come on..and if for some reason then there isnt anything wrong with getting new metal gaskets instead of having the old crappy paper ones..but it doesnt matter anyways..since your telling me im just gonna screw it up then i plan on taking it to my buddy jerry to get them changed more than likely

AJ

 

This is suppose to be a thread? THis is why I dont search, you rarely find anything but people's b/s egos!

 

And these are the posts that bring them back to the top for everyone to get upset about.

Scathcart is the man. He tells it like it is, wether you can handle it or not. I haven't read a bit of misinformation from him.