RX7Club.com - Mazda RX7 Forum - 3rd Generation Specific (1993-2002) https://www.rx7club.com/ 1993-2002 Discussion including performance modifications and Technical Support Sections. en Thu, 21 May 2026 19:04:20 GMT vBulletin 60 https://www.rx7club.com/images/misc/rss.jpg RX7Club.com - Mazda RX7 Forum - 3rd Generation Specific (1993-2002) https://www.rx7club.com/ Is it the AC expansion valve? check my sanity https://www.rx7club.com/3rd-generation-specific-1993-2002-16/ac-expansion-valve-check-my-sanity-1173352/ Thu, 21 May 2026 14:39:52 GMT My car's air condition has been working intermittenly. At first I thought I was low on refrigerent. My theory was that the compressor was unable to build enough pressure to constantly to have cold a/c. Luckily I have UV dye in my lines. I checked for leaks using a black light and nothing.

Next I hook up the manifold gauge set. The low side pressure is high and the high side pressure is low... Like really low, they are almost matched. So that would point to two things (based off my research), 1) a bad compressor, 2) a bad expansion valve.

Set up: My car is a LHD 95, it had R134, MANA from the factory. I have an HKS v-mount and was one of the first (if not the first) to adapt the JP3 Rx-8 condensor, compressor kit to an HKS V-mount. While I was in there I used their kit to replace the expansion valve. It comes with the cork tape, valve, and seals. All of this was done about three years ago.

I really have a hard time believing any component failed given that they are all three years old or less (I replaced the expansion valve after the other parts were installed), but I am leaning towards the expansion valve, given that the compressor is not making any kind of weird noises, the clutch is engaging properly, and the AC works some of the time. Back me up, am I on to something or am I out to lunch? ]]> 3rd Generation Specific (1993-2002) suzukisteve https://www.rx7club.com/3rd-generation-specific-1993-2002-16/ac-expansion-valve-check-my-sanity-1173352/ Help me analyze my v-mount cooling system! https://www.rx7club.com/3rd-generation-specific-1993-2002-16/help-me-analyze-my-v-mount-cooling-system-1173328/ Tue, 19 May 2026 04:10:02 GMT My cooling system works fine, but it strikes me as overly complicated. I don't know why they built it the way they did, and I wonder if I could simply it.

The one problem I do have is that the coolant level in the billet AST / thermostat housing seems to randomly flucutate by an inch or two, which trips the coolant level warning.

Any ideas of what might be causing this? Is the sensor simply placed an inch or so too high? I don't seem to be burning or leaking coolant, and the level in the overflow is usually at "full."
Maybe I just need to bleed it? In which case, how should I bleed this system?

If I was to refresh the system, do I really need to use a 1.3 bar cap?

Could (or should) I get rid of the swirl pot?

On an unrelated note, my car is finally street legal in Japan! (It only took me a decade to get around to it.)


]]> 3rd Generation Specific (1993-2002) Valkyrie https://www.rx7club.com/3rd-generation-specific-1993-2002-16/help-me-analyze-my-v-mount-cooling-system-1173328/ Changing pilot bush diameter https://www.rx7club.com/3rd-generation-specific-1993-2002-16/changing-pilot-bush-diameter-1173321/ Mon, 18 May 2026 09:45:28 GMT I’m in the process of fitting a ford style TKX which has a 17mm pilot tip diameter, would it be doable to get a bushing machined for it instead of using the standard bearing? Otherwise input shaft... I’m in the process of fitting a ford style TKX which has a 17mm pilot tip diameter, would it be doable to get a bushing machined for it instead of using the standard bearing? Otherwise input shaft needs to be machined down meaning the entire gearbox needs to be taken apart to get it out. ]]> 3rd Generation Specific (1993-2002) ethan77 https://www.rx7club.com/3rd-generation-specific-1993-2002-16/changing-pilot-bush-diameter-1173321/ Is this what detonation sounds like? https://www.rx7club.com/3rd-generation-specific-1993-2002-16/what-detonation-sounds-like-1173313/ Sun, 17 May 2026 20:48:18 GMT Would love some help, does anyone know if this is what detonation sounds like: https://www.youtube.com/shorts/sDtAn2hDieo ? I did some searches on threads from years ago, people described... Would love some help, does anyone know if this is what detonation sounds like:
?

I did some searches on threads from years ago, people described detonation sounding like marbles in a can, which is kind of what this video sounds like.

Asking because my car is currently making a very similar noise above 5k rpm. There's no power loss, and it revs nice and responsive all the way up past 7k, it's just that the noise starts after 5k and I'm worried.
In normal lower rpm driving, that noise doesn't appear. My idle and starts are also fine.

I have a completely stock '93 with the exception having a jdm downpipe and a fc thermoswitch. Spark plugs are basically new (changed last fall). ]]> 3rd Generation Specific (1993-2002) sphericaljoint https://www.rx7club.com/3rd-generation-specific-1993-2002-16/what-detonation-sounds-like-1173313/ 1997 rx7 ac compressor wire https://www.rx7club.com/3rd-generation-specific-1993-2002-16/1997-rx7-ac-compressor-wire-1173312/ Sun, 17 May 2026 18:26:46 GMT My ac worked perfectly before I put new engine in. I changed all o rings and got everything back together ready to recharge 134a. I went from oem ecu to haltech 2500 elite plug n play. went i hit... My ac worked perfectly before I put new engine in. I changed all o rings and got everything back together ready to recharge 134a.
I went from oem ecu to haltech 2500 elite plug n play.
went i hit ac button fans go on.but no ac compressor .there a plug from ac compressor not plugged in but has a wire going to loom from ac. But plug itself goes no where were.
what can I look for to get this compressor powered.i need ac.ill upload picture





]]> 3rd Generation Specific (1993-2002) Beach3um https://www.rx7club.com/3rd-generation-specific-1993-2002-16/1997-rx7-ac-compressor-wire-1173312/ Car randomly started to idle at 600-800 RPM https://www.rx7club.com/3rd-generation-specific-1993-2002-16/car-randomly-started-idle-600-800-rpm-1173302/ Sat, 16 May 2026 18:51:57 GMT Hey all! I’m back after a long hiatus with a question because I can’t seem to find another thread on this issue. I have had my FD for 4 years now and in the last 2 months or so, during my drives... Hey all! I’m back after a long hiatus with a question because I can’t seem to find another thread on this issue.

I have had my FD for 4 years now and in the last 2 months or so, during my drives the car randomly drops idle from 1200 to 800 to finally 600 RPMs. This happens occasionally, not all the time and usually during longer idle periods (damn red lights that take forever to change)

Before this, since I have owned the car, the car would also idle around 1000-1200 RPMs no matter how long we were sitting in neutral.

Wondering if anyone has any leads on why this would randomly start happening and also doesn’t happen all the time.

Any and all advice is welcome! Thank you so much! ]]> 3rd Generation Specific (1993-2002) Indianfungus https://www.rx7club.com/3rd-generation-specific-1993-2002-16/car-randomly-started-idle-600-800-rpm-1173302/ FD Headlight Bezel clips? https://www.rx7club.com/3rd-generation-specific-1993-2002-16/fd-headlight-bezel-clips-1173301/ Sat, 16 May 2026 17:51:55 GMT I'm ordering new screws for the headlight bezels on the Originwerks lights I ordered. The clips that the screws go into need replacing. I cannot find them on Atkins or Mazdatrix.

I believe the part number is 51-SC6. Does anyone know where I can get replacement clips?

These are the screws I am ordering:
https://www.atkinsrotary.com/93-95-rx7-head-light-bezel-screw-9977-50-516b-


]]> 3rd Generation Specific (1993-2002) Ace Callaway https://www.rx7club.com/3rd-generation-specific-1993-2002-16/fd-headlight-bezel-clips-1173301/ RTFM - Headlights? https://www.rx7club.com/3rd-generation-specific-1993-2002-16/rtfm-headlights-1173299/ Sat, 16 May 2026 14:56:08 GMT Does anyone know what (if any) section there is in the shop manual that deals with the headlight assemblies? I could only find S(Body)-38 dealing with the headlight cleaner system. Thanks! Does anyone know what (if any) section there is in the shop manual that deals with the headlight assemblies?

I could only find S(Body)-38 dealing with the headlight cleaner system.

Thanks!
]]> 3rd Generation Specific (1993-2002) jsesq https://www.rx7club.com/3rd-generation-specific-1993-2002-16/rtfm-headlights-1173299/ 6k ignition break up and tach goes wild simultaneously no matter the engine load https://www.rx7club.com/3rd-generation-specific-1993-2002-16/6k-ignition-break-up-tach-goes-wild-simultaneously-no-matter-engine-load-1173294/ Sat, 16 May 2026 02:24:32 GMT 1994 FD RX7. Just replaced my engine, old one was running fine. Now i have a misfire at 6k Rpms and at the same time my tach goes wild. The issue correlates with each other. Wideband also goes RICH... 1994 FD RX7. Just replaced my engine, old one was running fine. Now i have a misfire at 6k Rpms and at the same time my tach goes wild. The issue correlates with each other. Wideband also goes RICH when this happens further confirming what i believe is an ignition break up. It does it free reving or under any load. Doesn't matter if its light acceleration of WOT.

Running Power FC master (by FC tweak)
New ignition coil (L1 and L2 pack)
new spark plugs
new wiring harness
new extra grounding kit
gauge cluster already rebuilt

take a look at these videos to see clips. in 2nd video i get some good clips on the end.

https://www.youtube.com/shorts/fwR-Crtv4AM

https://www.youtube.com/shorts/UVMWPXi1LJM

Desperate for help or suggestions! Car runs great besides this issue. ]]> 3rd Generation Specific (1993-2002) rookie117 https://www.rx7club.com/3rd-generation-specific-1993-2002-16/6k-ignition-break-up-tach-goes-wild-simultaneously-no-matter-engine-load-1173294/ Gearbox bolt pattern https://www.rx7club.com/3rd-generation-specific-1993-2002-16/gearbox-bolt-pattern-1173288/ Fri, 15 May 2026 09:22:03 GMT Anyone have a CAD file or detailed drawing of the face of the FD gearbox where it bolts to the bell housing? Anyone have a CAD file or detailed drawing of the face of the FD gearbox where it bolts to the bell housing? ]]> 3rd Generation Specific (1993-2002) ethan77 https://www.rx7club.com/3rd-generation-specific-1993-2002-16/gearbox-bolt-pattern-1173288/ Help identifying part number https://www.rx7club.com/3rd-generation-specific-1993-2002-16/help-identifying-part-number-1173240/ Mon, 11 May 2026 01:26:26 GMT Hello, looking to replace a few trim panel fasteners, having a hard time finding a part number for this one, any help is appreciated! Lower side trunk panel. Image: Hello, looking to replace a few trim panel fasteners, having a hard time finding a part number for this one, any help is appreciated! Lower side trunk panel.

]]> 3rd Generation Specific (1993-2002) ecurbd02 https://www.rx7club.com/3rd-generation-specific-1993-2002-16/help-identifying-part-number-1173240/ Rx-lights or Sakebombgarage moonbeam? https://www.rx7club.com/3rd-generation-specific-1993-2002-16/rx-lights-sakebombgarage-moonbeam-1173226/ Sat, 09 May 2026 19:31:52 GMT Anyone have experience with either one? Can't find any videos of the moonbeams.

Don't care about wait times at this point. I was actually going to buy from Rx-lights but then found a pretty spicy thread about them that I just bumped. Can anyone recommend either one with first hand experience? Rx-lights seems to run a little cheaper with the conversion rate. I like they're made in Canada. Couldn't find my info on Sakebombgarag moonbeams. ]]> 3rd Generation Specific (1993-2002) Ace Callaway https://www.rx7club.com/3rd-generation-specific-1993-2002-16/rx-lights-sakebombgarage-moonbeam-1173226/ central locking cable failure https://www.rx7club.com/3rd-generation-specific-1993-2002-16/central-locking-cable-failure-1173223/ Sat, 09 May 2026 16:39:11 GMT so ive had my central locking cable(the one that goes from the lock to the lick toggle by the handle) beak on me twice in the last year and i was wondering if anyone has had this problem or found a... so ive had my central locking cable(the one that goes from the lock to the lick toggle by the handle) beak on me twice in the last year and i was wondering if anyone has had this problem or found a fix? ]]> 3rd Generation Specific (1993-2002) beebeeri000 https://www.rx7club.com/3rd-generation-specific-1993-2002-16/central-locking-cable-failure-1173223/ MAC valves https://www.rx7club.com/3rd-generation-specific-1993-2002-16/mac-valves-1173217/ Fri, 08 May 2026 23:47:20 GMT Hi, this is probably a dumb question but I recently find out that my duty solenoids are far from good and I’m planing to replace them with three port mac valves but. My question is about the... Hi, this is probably a dumb question but I recently find out that my duty solenoids are far from good and I’m planing to replace them with three port mac valves but. My question is about the fittings, should I use 1/8 or 1/4 barb connectors? And will it make a difference? ]]> 3rd Generation Specific (1993-2002) Ledian8301 https://www.rx7club.com/3rd-generation-specific-1993-2002-16/mac-valves-1173217/ How screwed am I? https://www.rx7club.com/3rd-generation-specific-1993-2002-16/how-screwed-am-i-1173212/ Fri, 08 May 2026 12:04:43 GMT So long story short, life happened and I wasn't able to drive my RX-7 for about two years. It's been sitting in my garage the entire time, but I didn't do any sort of storage maintenance on it. It needs a new battery and I need to get the old fuel out, also planning on an oil change that was coming due. What else should I do/did I do by letting it sit this long?

'94 with 70k miles on original motor and turbos. Always had a clean bill of health before this. ]]> 3rd Generation Specific (1993-2002) berfles https://www.rx7club.com/3rd-generation-specific-1993-2002-16/how-screwed-am-i-1173212/