MX-5 Maruha Special Service Tool

The Lock Tool for loosening the center bolt of Crank Shaft was once discontinued, but its resale with new designing starts this time (in 2023).
The product is not merely cutting from iron plate.
It is made by machining for the base of the optional crank scale plate.
As there are impact wrenches (air tools) in professional garages and repair shops, the center bolts can be loosened easily after making space for using air tools.
However it is not easy for private person to do that.If the center bolts need to be removed by hand without air tools, the crankshaft have to be fixed, but no special tool is available in the market.
In case of only engine unit, it can be fixed by using ring gear of fly wheel, but it would be worried a little bit because the important gear might be broken.
In case, the engine is installed in the body, there is no way to fix it without special tools like ours. It might be useful for even specialty shops to remove lock bolts without taking off radiator in a narrow space.
In overhauling an engine, it should be loosened. For general maintenance (replacing timing belts and water pump), it should be taken off.
For removing timing belt, pulley boss has to be taken off after removing the center lock bolt.
Suitable for :
Mazda MX-5 Type MK1 , MK2 & MK2,5 models