Tools

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These are the Mazda Special Tools we have found to be either necessary, or very helpful for working on RX-7's, or any rotary engine. Some of them (like the Pilot Bearing Remover) may seem somewhat expensive, but pay for themselves the first time they are used by making the job easier and preventing damage to the parts and/or the person performing the repairs.

Engine Stand Head
Engine Stand Head We have been getting requests for these kind of engine stand HEADS for years - we were always just explaining how to build them. These images show the type we use (you supply the actual engine stand !!) - just rummage around the garage and find some angle iron and pipe the right size, measure things, drill holes on the drill press, chop the right sizes with the chop saw, and weld all the pieces together.

 

For those who do not have angle iron and pipe, a drill press, chop saw, and welder, and an hour or two to spare (but DO have an engine stand) -- we now have them for sale.
Head w/Engine Head w/Vertical Engine Part Number

MZTX-ENG-STAND

(This is the "HEAD" only)

(Pipe size is 2 3/8 outside diameter - the most common size. PLEASE be sure your engine stand uses that size!!

Head w/Front Housing This type of engine stand head balances very nicely. It allows full engine disassembly and reassembly, easy "flipping" of engine to work on rear, front, bottom, etc.

 


 

Image Part Number Description
Shock Hatch Clamp MAT-LSC-4487 This is a universal hatch shock clamp for anyone who isn't ready to replace that hatch shock just yet. Also for those who have hatch shocks which are no longer available.
Pilot Bearing Installing 49-MT-110 Pilot Bearing Installer -- Works great for installing pilot bearing, then the seal. Put bearing on tool, line it up, hit tool with hammer. Four inches of knurl to decrease the hammered knuckles / thumbs. Aluminum and inexpensive.
49-1285 Pilot Bearing Remover makes an absolute breeze of a sometimes almost impossible job. We tried most of the after market removers, many grinders, and homemade tools. The first time we used this correct tool we wondered why we ever bothered with anything else.
49-1295 Combo - Pilot Bearing Remover and Engine Dowel Pin Puller-
Since our pilot bearing remover and dowel pin remover share the same slap hammer, we offer them as a combo kit to save $. If you will use both tools, save some cash by buying the pair.
All Rotary (non-turbo) Part Number
49-0033-05

 

All Turbo & RX8 Part Number
49-0033-03
Clutch Alignment Tools are needed whenever a clutch is installed. Damage to the clutch disc is almost assured if alignment is not correct.
Nut Wrench
Image Above 49-22000 Flywheel Nut Wrench makes removing the flywheel nut a lot easier when you do not have impact guns and the 2 1/8"/54mm socket needed.
Mazdatrix Flywheel Socket 49-22009HD 54 mm Impact Flywheel Socket - for removing flywheel nut if you have an air compressor and impact guns, or even just a long breaker bar and somebody / someway to hold the engine down. Socket is 3/4" drive.

(Please - do not try breaking that nut loose, with a breaker bar, with the engine on an engine stand !!)
Mazdatrix Flywheel Nut Socket 49-22009 54 mm Flywheel Socket - for removing flywheel nut assuming you have a long breaker bar and somebody / someway to hold the engine down. Socket is 3/4" drive.

(Please - do not try breaking that nut loose, with a breaker bar, with the engine on an engine stand !!)
Adapter 49-22008 3/4" adapter to use 1/2" drive. The flywheel nut is put on with over 300 foot-pounds of torque and this adpater CAN BREAK! BE CAREFUL!! (sorry - there is no warranty on it). Better to get a hold of a 3/4" breaker bar that has a warranty from somebody.

(Just to let you know kind of worst case - We have had a few where we needed to use our 1", 1200 foot pound, impact gun with our 1" drive impact 54mm socket!)
Non-Turbo Flywheel Stopper 49-220NT All non-turbo flywheels:
49-220NT
Does NOT Fit Automatic
Does Not Fit RX8 - See below
Flywheel Stopper
Bolts to back of engine to hold flywheel while the large nut is taken off.
49-220TB Turbo Flywheel Stopper All RX7 Turbo
RX7 Automatic
RX8 Manual Flywheels
49-220TB
Does not fit RX8 Automatic
Flywheel Stopper
Image Above 49-22001 This type of Flywheel Stopper is simply a flat bar with holes for bolting to the flywheel. It is then rotated until it hits something solid to hold the flywheel while the nut is removed.
Flywheel pullers are available, but we do not carry them, as the flywheel can easily be removed with a hammer.
Click Here to view our flywheel removal FAQ.
Rear Counterweight Puller 49-22003 Rear Counterweight Puller
(For automatic transmission or aftermarket two piece flywheel counterweights)
TPS Adjuster 49-F018-0010 Throttle Position Adjuster Tool - electrical loom with 2 lights for setting the TPS on 84-92's
Plug Socket 49-11529 Small Diameter Spark Plug Socket is needed whenever short body spark plugs are used in 81 and later rotor housings.
(see below)
The '81 and later rotor housings have an external ridge around the spark plug hole that prevents a conventional plug socket from being able to screw a short body plug all the way in. (The "normal" NGK plugs have a long body and do not require this tool.)
The small diameter spark plug socket fits around the plug, and inside the ridge.

 


 

Internal Engine Tools
Image Part Number Description
49-1290 The Dowel Pin Remover lets you get down into the hole in the housing to pull the dowel pins out. This tool incorporates a "Slap-Hammer" so the really stuck dowels can be removed.
49-1295 Combo - Pilot Bearing Remover and Engine Dowel Pin Puller-
Since our pilot bearing remover and dowel pin remover share the same slap hammer, we offer them as a combo kit to save $. If you will use both tools, save some cash by buying the pair.
49-22004 This Tubular Dowel Puller allows easy removal of the four tubular dowels used to align the engine housings. In some instances, these dowels can be removed by hand, but this inexpensive tool facilitates the task. For really stuck dowels, you will need the slap hammer above. (49-1290)
Rotor Bearing & Main Bearing Installer/Removers make changing the rotor and main bearings a lot easier and decreases the possibility of bearing damage. It is still recommended to heat the rotor or gear, slightly, and freeze the bearing, prior to beginning installation. The separate disc is removed for bearing removal, then put back on the tool for bearing installation.
Main Bearing Tool 49-0813-2400 Rotor Bearing Tool
Rotor Bearing Tool 49-0813-2350 Main Bearing Tool
EShaft Removal Tool 49-J011-1A00 3 Rotor Shaft Separator Tool

 


 

Diagnostic Tools
Click photo for Larger Image 49-TR01 Compression Tester WITHOUT Printer
Used for all Rotary engines from 1972 - 2011. We have used MANY different compression testers over the 40 years we have been in business; We started with the very old MAZDA paper tape tester which then became no longer available. We then went to the MAZDA digital ones (w/o printer) until they became stupid expensive and very hard to get. We used a few other ones with varying success, and variable satisfaction. We never really like the ones that required a laptop to function, even when you could get really cool looking graphs. However this one has all that WE needed -- VERY portable and self contained. It WORKS GREAT and comes with everything you see in the photo!
49-TRPR Printer for Compression Tester Above
This is the printer specifically designed to go with the above compression tester. It comes with everything pictured (yes even the batteries and paper!)
Digital Compression Tester 49-F018-9A0B Mazda Factory Digital Compression Tester
gives a compression reading for each chamber of each rotor. No conventional compression gauge will allow the separation of rotor chambers. A graph is supplied to show minimum PSI for any given cranking RPM.
Code Checker 49-H018-9A1A Digital Code Checker
for '84 - '92 RX-7. Plugs into the code checker plug in the engine bay to diagnose poor running condition. Gives tone and code to pin-point bad O2 sensor, bad throttle position sensor, etc.

 


 

Intake Block-off Plate
Image Installed Description Part Number
Intake Block-off 84-92 13B Intake ALL

1/8" Thick Aluminum - Great for protecting engines for storage or shipping.
B0-13BINT-8692

 

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