Be brave!

I think I see the pump in your picture.

But whether it is connected to power, I don't know.

 

I found two leaks one on the down pipe and one on the lower waste gate. Also found out I don’t have a cat.

 

Probably gonna have to live with the lower one. See that little c clamp? Better have a spare before removing it.

On the top one. Better have some spare studs ready.

Be careful not to brush off the wire on the O2 sensor.

(likewise on the water level sensor (but that is another story.))

 

I got the Down pipe out but one of the studs snapped and I’ve had no luck getting it out. Can I take the “turbo manifold” or whatever it’s called out without taking out the engine?

 

Yes you can pull the brick with the engine still in. Theres a good thread on here about getting the exact studs needed to restud the entire thing with studs from McMaster-Carr. Good time to port the wastegate and re do allll the vacuum lines while you have it all out

 

I already suggested spending $2500 on his rat's nest lol!

Set of gaskets and replacement studs from the turbo manifold, out, etc. is about $1500.

Better set priorities and a budget.

Given his wastegate axle is loose, indicating a lot of use, I would wonder if there is a surprise waiting when he can take a look at the cold side turbo fans.

Is there a way to remove the snapped stud? Such as the double nut technique, if there are any threads showing at all.?

Likely there will be more snapped studs.

 

$1500 for exhaust gaskets and studs!?!?!?! what kind of insanity is that? Studs are cheap, and gaskets may run $200 total for the specific ones if they can't be reused.
https://www.rx7club.com/3rd-generati.../#post10669635

 

no thread left it’s seeming like a take out and torch kinda job. Is there anything I can do about the waste gate axle?

 

Give me a week and I can sell you a re studded brick and ported set of turbos. prob cost more for shipping than they actually cost
If you want em, I have 2 sets of turbos lying around,

 

how much is that? I’ve not much of a budget right now lol

 

Depends on what USPS quotes to ship the heavy *** parts. I'll be home in a little over a week and we can figure it out if you want.

 

There is a technique to drill out the stud and put a sleeve in the resulting hole so a new stud/bolt can go in. I have no idea if that would work here. If you move to remove your twin turbos (they come out as a unit), you are likely to break some more studs. And, as I indicated, likely you should replace all the gaskets, in that area.

Porting will cause runability issues, and probably better done if you plan to get an aftermarket ecu.

Your ecu is likely 25 years old, so how many years more can it last?

No cat? You may have backpressure issues the stock ecu will not like.

 

I read about the cat with the ecu that’s why I was hoping it was modified. Which on the accessory belt is the air pump? I think it’s disconnected but I want to verify tomorrow. I want to look into an aftermarket ecu

 

I bought the gaskets and studs from Mazda, so likely overpaid. Exhaust manifold gaskets (2) were C$180 each. Studs were like C$15 each. You can reuse, or find ok used, I suppose.

I have accumulated fifteen sets of used twin turbos. So I'd be interested in how the refurbishment thing works.

 

fifteen are you just always prepared for replacement?

 

Better get an Factory Service Manual before going much further. Use it as a pillow for a week or so and you will be good to go.

There was a link to a three part manual on a recent thread. Use the search function to find links for manuals.

The air pump has a "do not remove this air pump" plaque on it. I saw it in one of your pictures above.It is under the "crossover pipe" which feeds the intercooler.

The ecu is located in the drivers footwell sidewall (LHD). It is not hard to access. You can see if it has been replaced by a power FC or other.

 

I checked it earlier it’s on the passenger side. It’s stock but someone told me to open it and check for soldering when I took the kick plate out the ecu was just loose it wasn’t bolted in

 

I have exclusive access to the local tuner shop's dumpster.

 

I wanna be where you are, I need those parts!

 

I might have mentioned it. It might be pristine inside. But if there are signs of water getting in there, there could be significant corrosion. There are threads that show some horror stories.

 

I’ll have to check when I can. I want to get her running soon I’m getting depressed. I want to get it running now so I can space out the parts a bit. I definitely want gauges so I can see what’s going on.

 

https://drive.google.com/drive/folde...TtRMWrkQL_8wxQ

You can send thanks to Zepticon for orginally posting this.

 

You are in the right place. The RX7 community is full of great people who are willing to help. Look at the number of 15 year members on here willing to give you advice. I think there is a strong group of owners in Florida. Try to get to their meets. Find a local mentor. Find out who is parting out cars, so you can get used parts more cheaply.

Boost gauge and AFR gauge recommended.

 

Thank you I appreciate it. I was going to get those two and a fuel pressure gauge, I’m thinking the dashboard cluster over the pillar one. Especially since my speaker there is missing part of the trim around it

 

http://www.rx7parts.com/

This site is just starting up.