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1994 UK RX-7 - black - Rip Van Wankel - just getting started...

Bear

Member
Joined
Mar 4, 2025
Messages
16
In the new members bit I posted an intro, but here's a thread to follow what's happening with this unusual car. I really should have a YouTube channel and be gurning at the camera about this BARN FIND and so forth, but honestly, it's not a barn find in the sense that I've known this car was locked away since the day it was locked away. I just never had the time or organisational skills to go and try fixing it, and my friend loved the car but isn't a mechanic, so I think didn't want to let it go anywhere, but likewise wasn't sure about how to fix it. Pretty sure the problems happened right after it had been worked on so trusting a specialist with it was out of the window.

Which means this UK-spec RX-7, bought as a nice sporty used car when it was just a nice sporty used car, has spent from 2008 to 2024 hiding from the light in a Hackney lockup. I wonder if the people who stole the bikes and things from the lockup were perhaps hoping to do something with it, but them stealing the bikes meant that finally, my friend and i took action!

In the intro post @jack.am says "good to see another one saved" or similar words. I don't think that's quite fair – I'm putting it back on the road, sure...

But saved... you know, this car was a real shock. It was parked in a council lockup in 2008 and did not turn a wheel until I pulled it out of there. The replacement MX-5 had been parked outside and after his injury sat for two years before the sad decision to never drive again, and by that time when I offered to advertise it, we discovered that it had deteriorated (as MX-5s do when left outdoors) and someone had stolen the cat.

So with the lockup, the doors were old and falling apart at the bottom, but really secure. When the council came and upgraded the doors the contractors wouldn't talk to his partner (they live within sight of the lockups, all off a main road in the same estate, so it's not like they're remote), we've no idea where the key went, but when he got to go outside he found the door open sometimes, sometimes closed. All his other stuff was nicked, but the car was still there, we thought whoever had the key had been treating the lockup as their own and maybe felt anything in it was 'theirs', or maybe they knew exactly what they were doing.

I got made redundant in May last year, so when I was in London anyway I popped in, I found that the contractors had fitted the door in such a way that it could never lock. The staples and bolts weren't aligned, the door could be pushed open with ease. I also found that someone had nicked the Alpine CD changer, amp and subwoofer from the car (Denny worked for Alpine at the time and the car had some demo kit fitted), using the screwdriver from the toolkit judging by it being open and the insert loose in the back. They also nicked the screwdriver, Gits.

Expecting the worst, I checked under the car with a torch as much as I could, had a feel for crusty sills and stuff, looked for signs of rodent damage - it's like the car has been in stasis. If you want to preserve a car for the future, shove it in a London council garage with leaky doors and a non-lkeaking flat roof for a decade or so apparently. The interior still smelled freshly valeted and had no mould or damp, the tyres (fitted not long before it dumped the coolant) are so old in date terms I'd be afraid to rely on them but they still had pressure, and having inflated them to move it, still had 25psi in what, 8 months later. They don't even look perished.

Seeing the condition of it, and thinking that if whoever thought they'd got the garage (maybe with the garage having 8 on it, the contractors gave the key to number 8 in one of the blocks - though no-one had owned up if that was the case) would have seen us going and looking and taking pics, I rented a truck the next morning and got the car out of there. I was expecting it to be stinking, rusty, rotten etc.

The tank was completely full of V-power, I made a rookie mistake and forgot about physics so when I got it home I'd drained half the tank with a pump - the fuel retained worked fine in our old bangers as a way of disposing of it, but I had left an expansion chamber when before it had done, so over summer/winter temperature changes with the filler cap on it pressurised or vacuum or something and leaked fuel all over the garage floor. Yeay! I need to check if it is a pipe that has failed, a split in the fuel tank, or was just a vent pipe purging, but have since left the fuel cap loose.

Having saved it, we discussed what to do with it - I figured that even without me touching a thing on it, it could be sold for enough to pay for my time recovering it and a useful chunk of money for the owner - but he's keen to see it work again, no rush (it's been sat 16 years) and who knows what we'll do after that. We assumed it would need a full rebuild, engine, the lot - I said I'd just take things apart slowly and see what I find. After a gentle bit of washing, and finding the goop in the radiator cap, I felt like there was progress - but discovering the small hole on the front inner wing paused work (as did it being sodding cold and bitter).

Couldn't decide how to progress because I can't weld - in the end, this month I've decided to just see if it works at all. Cleaning out the coolant showed more signs that it wasn't a 'head gasket' failure (my suspicion was maybe the recently-before-failure work on the turbos might have introduced an issue - I've yet to see the history file to piece together more of that though) but potentially, an OAT/Ethylene Glycol coolant mixup issue causing the system to pressurise and dump coolant out.

My main concern is that the rotor seals and springs may have failed with being stuck in the same position all this time. I dropped a bit of oil the plug holes and left it a little while then gently turned the engine, it feels fine - no resistance and I can hear the pulse of 'breathing' compression even turning it slowly. So I've drained the oil (no signs of coolant in it), filling with cheap Mannol stuff from Amazon because for £50 I get 15 litres of it - fill, test car, drain, fill... I'll put some fancy Millers mineral oil or other nice recommended stuff in when I know the car works. I'll flush the cooling system more with some rad flush, I know there are some pipes that I can't easily reach without taking the inlet off and they're likely to still be blocked, then if no issues show I'll change all the coolant hoses and fill with proper mix, I'm fairly sure this car would have been OAT when new but I am wondering if the new formulas are better. Current plan is to use nice straightforward G12 but never with the idea that it'll stay in there for 10 years.

If it starts and runs, and runs well, I might just try taking it for an MOT before doing anything else. See what else crops up. Meanwhile I'm cleaning, checking, waxoyling, rust treating and so forth just little bits at a time. In the long term it needs a repair on the rear quarter and a lot of London-style small parking dents and marks sorting out to be perfect. But if the UK cars are desired, I think perfect is worth aiming for.

While I'm still looking for regular/sensible work to not be under financial stress I can't throw money at it – but I know it is worth investing in. Until then I'm mostly just enjoying a really beautiful car occupying my garage.

Though my 2003 Boxster S is less impressed at being evicted.

I'll upload some pics of progress when I'm at the right machine!
 
Well, when I say "progress" today got a bit carried away. Thermostat arrived, as did oil and filters, so I argued with that horrible air filter hose setup for a while, grabbed a battery and...

bear in mind this car has not been started since 2008 and was parked up with suspected "head gasket" failure - with nothing else done to it until I retrieved it.

Full disclosure - this is the second start - the first start had a few more churns to get fuel flowing etc. but having owned an RX-8 or three I have very different expectations of "a rotary having trouble starting". This fired up easier than many piston cars I've had that have been left parked up badly...

 
So with it running I needed to run the coolant flush theough - it burped a lot, the pipes are well clogged and I'll replace all the hoses and clips before it gets any sight of an MOT, but all worked out so far - I have heat, I have clean oil, I have revs, and I have starting hot or cold despite a weak small battery.

How it started:
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How it's going:

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I do need a new low coolant sensor though, I tried to remove it to avoid breaking the wire when cleaning the housing and broke the wire a different way instead!
 
Life ate me for a long time, and the car decided I needed a fountain. A fuel fountain.
So I got a scissor lift and managed to fit the over subframe pipes. (I'm still trying to put the fuel filter bracket back after buying a new one. I hate whoever decided to put the fuel filter there).

Upon which an undercar pipe went. Spectacularly. I suspect the resulting lack of fuel pressure also made the car a bit reluctant to run.

Which made moving it out of the garage very tricky indeed. It's been languishing ever since, but I ordered some braided lines having been unable to get hardlines, and hopefully - after I think, being sent RX-8 ones (3.06m vs. 2.3-ish m) I'll be able to start the car again and do more work - braided flexis on hand for the brake and clutch, and I needed to do the coolant flush and so forth.

Funny to think this was last year, it's been chaos. And my cars have changed. Lots. Now I have a pair of Mercedes C320 SportCoupes and an Audi 100 Avant...

Pics to follow. And I'm still trying to find a sunroof switch/interior light and a fuse box cover (I did find one but it had broken clips - it was listed as a fusebox so I should have been clearer about which bit I wanted!).
 
Scissor lift makes all the difference...

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Ah, that'll be where the fountain is coming from :/

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Small improvements - found a new fob shell...

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Some new fuel lines, but... I'm not sure this is right...

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Better measure them...

I get 2.23 to 2.27m - maybe more for the fuel pump line but it broke.

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My new lines appear to be over 3m! Supplier said they should be 3.06m and we had a discussion about UK vs JDM RX-7s and short wheelbases but I am sure there's a case of crossed wires somewhere and my order of RX-7 lines has become RX-8 lines. Or every FD owner who has bought a set before has coiled up 80cm of line in their subframe or relocated the filter and charcoal canister.

Waiting for a set of 2.4m long ones now. (Does anyone have a definitive answer on this? I know Europe and JDM RX-7s have some differences around the fuel filter plumbing, but the hardlines front to back appear to be the same part number on all years and variants).

Meanwhile, the twins are waiting their go on the scissor lift. V6 versions of the 3 door C-Class are rare (444 prefacelift, 119 of these facelift ones sold new) - I think I own 2% of all C320 SportCoupes still on the road in the UK 😂

(For performance fans, the rarer C350 version has almost as much power as the special-order AMG C32 SportCoupe, and the 2.5 V6 230 is almost as powerful as the 3.2. But, those models are even rarer and also in the horrible tax bracket).

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The one in the background was expensive-ish and sold as a great example, polished to death, but needs a lot of things sorting like stuck sunroof, leaks, etc.

The black one was a no-show sale on eBay locally and I bought it for spares after realising how misrepresented the first one was. Naturally it's turned out to be the better daily driver as it has non-AMG suspension and hadn't been thrown onto the road to sell after years sitting in a barn.

Like the UK-spec RX-7 rarity, I don't really care about it seriously - but it's quite a motivator to spend time and money on preservation and maintenance.
 
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Thought I'd do the brake flexis while waiting.

Bugger.

It was welded to the nut with rust and presumably past its best, ao being forced to change hardlines might be prudent. But more work...

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Looking forward to seeing the twin turbo Sinclair C5
The plan is a 28-30" rear axle with centre diff, 48V electrics, and a couple of other tweaks. I'd like to give it some sort of suspension but I don't think that's feasible without a kind of engineering I'm not remotely capable of - I can visualise a Chapman strut layout that would work within the confines of the body. The batteries, I'm thinking 48V packs similar to the mild-hybrid booster packs you get in cars like Ford Pumas.
 
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