1989 Mazda RX-7 Vert - Sold! 2/4

It seems you've made a bit of progress since I last saw this!

As for the disc I've been there before. On a Mondeo MkIV. It's a common problem on them apparently. The bell rusts internally meaning that the disc will not come away from the hub. The garage I use for MOTs has actually cut discs off the cars in the past due to this! Given how long it took me to get the disc off (a very long time!) the other side did go quicker:





I got the other side off quicker by:

-spraying the inside of the bell with WD40, or wherever I could access it from behind.
-Chipping away the loose rust
-Removing the disc with many blows of the hammer. I was going to use a 3 legged puller on it believe it or not and a friend did offer out his press to me.

But I reckon you'll get there .

Difficult to photograph but the front left brake is all back together



I then tried to start it to move it and it didn't quite want to cough into life, think I may have flooded it and the battery was a little flat

So I'll take the plugs out, see how they're looking, and charge the battery and return to it tomorrow. Just don't have the energy today

I was of the understanding that copper grease is out dated? I got told to use graphite grease on my P100 build?

SmokeEm You could well be right to be fair! It's just what I had to hand really But should do the job of keeping them from fusing together at least

luckyseven Thanks! Yes that was sad news about his passing I do still need to do a little adjustment on the exhaust as the tips are hanging a bit low.. But nothing some new hangers shouldn't be able to sort

I'd forgotten about the PCV to be honest, at most I'll probably just put a hose on the open port and run it out the bottom of the engine bay so it limits the amount of grime on everything

After having just been working on the car today, I will definitely be needing new plugs...


So today's update is less optimistic than yesterdays

The hammer trick which worked on the passenger front disc, hasn't worked on the drivers front disc.. borrowed a heat gun to see if that would help but still that disc doesn't want to budge. Have rather run out of ideas on that one, apart from buying more penetrant and keep hammering away


After giving up on the brakes for the day, I looked at the non starting. (with the help of Matt ( Rafftank))

I always find having two people thinking about an issue helps so much more than trying to figure it out on your own. Ever since I'd done the exhaust and supporting mods, the car has been poor at starting, its also always smelled rich and has made various odd clicking noises under the bonnet.

Until now I'd kind of put those aside and hoped it would clear up with a bit of a run.

Today however I'd noticed that some of the clicking seems to be coming from the vicinity of the secondary fuel injectors.

Pulling the dipstick found the oil to be not the consistency of oil... Which indicated an overfuelling issue of sorts.

Matt then had the good idea to turn the key to idle with the EGI (fuel injection) fuse pulled, and sure enough the clicking stopped.

So off with the UIM (again!) and Matt looked down the intake runner while I turned the key to ignition. The secondary injectors were spraying with the car just sat on ignition!

So I must have made a mistake when wiring up the injectors as I had to cut off the old plugs and splice on new ones. The wires must be the wrong way round

Major idiot moment from me!

So plan of action must now be:


Re-wire the injectors properly

New plugs

Drain and change the oil and filter


And hope that I've not done any lasting damage to the engine

Aha yeah, when the weather improves and I've got the energy I'll get back to hitting it, the neighbours won't be enjoying it much though mind!



Small update on the fuelling issue. Unplugged all the injectors the other day and turned the key to ignition. Was greeted with clicking sounds from the fuel pump and injectors again which baffled me

The front one of the two new injectors is still wet with fuel though, so I think its defective and leaking which will be very annoying as its practically brand new.

Next step is to swap the old injectors back in and prime the rail to see if the relay keeps clicking on ignition, then hopefully I will have found the culprit!

Oh are you the Adam that came and picked the box of parts up from me?!

Ahh ok, shouldve made that connection. Glad to see the ecus went to use, I thought whoever bought it was likely to toss them honestly. Yes the truck is a bit of a give away!

Still have the FC, it just went to a bodyshop the day before.

Hope things work re the injectors, after working on mine all week I know how frustrating these cars can be.

sb aha they came in fairly handy in the end, to be honest I wasn't really sure what I was gonna do with any of the bits but I'm a bit of a spares hoarder! Mine needs to go to a bodyshop as well at some point if I ever get it running!

ian65 yeah was hoping I wouldn't have to go to the full expense of a standalone as it wasn't meant to be that sort of in depth project! I'll keep trying to get it going though

As a back up I could just stick a stock ECU with stock secondaries in, and put a Fuel Cut Defender in there, but it feels like a bodgy way to do it


MOT runs out soon as well, so its all going great... I think if I didn't have quite so much money tied up in the 7, I'd be tempted to pull the engine and stick it in my MGB

Hayward rotary sorted my power fc and it wasnt an awful price, may be worth talking to Carl.