lever2000

Hey all! I have an 87/na rx7. My buddy and I went to install pineapple racing sleeves in the 6 port sleeve. The actuators have never been on since I had the car so I dunno if they were open or closed. I replaced the 2 6 port gaskets I purchased from Ebay. Paper one and I got a steel one. The steel one did not fit exactly as we wanted but we made it work I guess. We scraped off the old gaskets too. We assembled it all and forced open the cold start throttle body for more velocity. Anyways! I changed the spark plugs while I was at it as well. Assembled everything and replaced a bunch of old crusty vacuum lines as well. Started the car and it reved to 4k and started to die. The only way to keep it going is to keep your foot on the gas so it does not die. we thought perhaps putting the throttle body to the originaly position would help and it reved past red line and I immediately turned the car off. So back to the throttle body open we tried to take it for a drive and it bogged the whole way down the block. I really need help here!! The OMP is disconnected as well and we sealed the oil injectors and I pre mix so I am not too worried there. hmmm We do not have the actuators on the the 6 ports we are waiting for those gaskets and getting a block off plate for the OMP. We also plugged in the idle sensors and what not. Could it be that the gasket we replaced was the wrong one? It looks like it covers the correct ports just didn't have the correct holes for some bolts to be screwed in I believe... Any information is much needed! Thanks a bunch guys

misterstyx69

iTrader: (142)

vacuum leak?

lever2000

I'm thinking so but I replaced all the bad vacuum lines. Unless it is the gasket itself just not sealing up?

apsolus

iTrader: (2)

throttle plates opening and closing properly? refer to rotory ressurections tech page and follow the emissions removal procedure and check out the pics. my guess is your throttle mods have something to do with it. i just did a full emissions delete and that can help eliminate some possibilities. as far as the port gaskets, i just made mine witha ballpin hammer and some gasket maker.

lever2000

I got rid of the emissions stuff on my car. I have no cats, full RB exhaust. Like I said we tried with the throttle mod both ope nad then closed... it just made it worse both times.

apsolus

iTrader: (2)

tps might be an issue. is it set properly?running bac? is it perhaps stuck open? have you tried adjusting it?

lever2000

What do you mean by "running bac"

lever2000

nevermind, that is bypassed actually.

lever2000

I'm really thinking it could be that crappy 6 port gasket I got from ebay. I do have a bit of a fuel as well from the pulsation dampener... any thought of that?

wthdidusay82

iTrader: (15)

Dampener is leaking fuel, replace it or do the banjo bolt mod , it will get worse and can cause an engine fire

What brand gasket did you buy? I bought all OEM other than one Atkins gasket.

Make sure you properly torque everything to spec with a torque wrench and use some rtv with it to ensure a proper seal.

If you don't have a torque wrench do your best to make sure its all tight, but don't overtighten it as you could crack the gasket and break your bolts

Rotary >Pistons

lever2000

I am intend to do the banjo bolt mod. as for the gasket .Beck Arnley 037 4712 Intake Manifold Gasket | eBay

wthdidusay82

iTrader: (15)

Hmm they're not a bad brand ive never used them though, are you sure you don't have a cracked vacuum cap somewhere ? Also check vacuum lines etc.

Rotary >Pistons

lever2000

I am gonna take it all off again this friday hopefully when the rest of mu gaskets and such comes in!

wthdidusay82

iTrader: (15)

Good luck. Hope you get it sorted out

Rotary >Pistons

lever2000

MY update....
Put new gasket on this time (stone) then I assembled it all with a friend. Fixed the pulsation dampener with a bank bolt. Fuel leak stopped. there is a terrible terrible vacuum leak somewhere, the idle is disgusting. I'm surprised it idles to be honest. fluctuates from 200 to 1200 rpms. Replace a bunch of vacuum lines. I am going to take it all off again and clean the oil, dirt and crap off the engine where the vacuum leak is... I believe it is at the middle intake section, gonna clean it up and rtv the hell out of it. Any other ideas? Thanks!

wthdidusay82

iTrader: (15)

This is a dumb question but ill ask -

Did you make sure to scrape off all the old stuff on the mating surfaces with a razor blade so it was a clean surface?

Also make sure all your vacuum caps aren't cracked or broken, a broken one will suck in unmetered air. An easy way to tell if the cap is bad is to put your finger over the hole where the cap was and see if it idles better.

Also if any are missing it will cause an obvious leak.

Rotary >Pistons

gerald m

I pulled a real dummer the other day and never plugged the hard line connection for the vacuum brake booster line ,possible you missed it on reassembly.

wthdidusay82

iTrader: (15)

If it's the same line I'm thinking of (a big one). I plugged it on my old na with a spark plug. Lol

If its a metal line then I'm obviously talking about something else.

Rotary >Pistons

lever2000

haha one of my lines is plugged wit ha spark plug actually! I don't think it's that one. the first time I did not scrape it well enough. Took it off scraped it bone clean! Replaced the gasket... same thing. I believe there is a leak from the middle intake manifold. Would it be ok to clean the area and rtv the connected area around the actual seal with it? or this that not a good idea?

lever2000

also... I replaced all the vacuum lines around there haha. even plugged up a lot with stoppers

lever2000

and I did replace the vacuum brake booster line today. it was well cracked but still didn't make much difference

wthdidusay82

iTrader: (15)

It might fix the problem it might not, it probably will be difficult to get it completely around the entire manifold...if it does fix it the leak may come back shortly later.

Sadly the only way to know you've ruled it out is to go and replace the gasket on the lower manifold as well.

Too bad you don't live close by, I'd help you do the work.

I love these cars, they're quite addicting and working on them is half the fun, the other half is the spirited driving.

Rotary >Pistons

lever2000

Hmmm you might be right. Dang it! I am gonna try to clean off all the gunk along the intake manifold areas and then try the rtv and see how it goes! it idles from about... 300 to 850 now. Would you say big leak or moderate?

lever2000

By the way I did replace the lower intake manifold... 2x actually. first was metal gasket second was the stone gasket... think that leak is somewhere else?

wthdidusay82

iTrader: (15)

I'd say moderate, if it was big it wouldn't hold an idle.

Rotary >Pistons