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-   Rotary Engine Building, Porting & Swaps (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/)
-   -   The Proper Way to Remove the Front Eccentric Shaft Bolt (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/proper-way-remove-front-eccentric-shaft-bolt-55404/)

nicad2 12-01-2005 12:03 AM

After much blood, sweat and tears the front eccentric shaft bolt has been removed from my 13B.



Background info

- Torqued at the factory to 200 ft*lbs

- For some unknown reason, Mazda chose to loctite it

- Standard Loctite breaks down at 325 F



What didn't work

- 2' torque wrench (wrench broke)

- Propane torch applied for 15 minutes

- 1/4" rt angle bar bolted to flywheel (it broke)

- 1/2" socket with 4' breaker bar (wrench broke)

- Air tools at Discount Tire

- Two air tools at my local motorcycle mechanic

- Two air tools, a chain wrench, 2' breaker bar at my local Mazda dealer

- 1/2" and 3/4" (700+ ft*lbs) air tools at local Mazda specialist (adapter broke)



What did work

- 2' x 1/2" breaker bar with 4' x 1" steel pipe

- 3 minutes of oxygen + mapp gas torch applied to the bolt





Thank God it's over. Damn you Mazda and your Loctite https://www.nopistons.com/forums/pub...IR#>/happy.png

kahren 12-01-2005 12:37 AM

i think you need to eat your wheaties in the morning

R.P.M. 12-01-2005 12:42 AM

Hahaha...yeah, my genaric 1/2" air impact rips them off no problem!

teknics 12-01-2005 03:12 AM

the front one? i took that off with the engine still in the car, without air....and i think i didnt even break out the breaker bar.



now if you had problems with the front one, how the hell you gonna get the flywheel off, most people come in here cursing at their mother's trying to get that **** off, i just use my air gun and it comes right off https://www.nopistons.com/forums/pub...IR#>/smile.png.



kevin.

Baldy 12-01-2005 07:57 AM

This bolt, that's the one that needs to be removed to do the oil pellet thing, right? How do I get to that, remove the fan? (for FC)

teknics 12-01-2005 02:09 PM


Originally Posted by Baldy' post='782842' date='Dec 1 2005, 08:57 AM

This bolt, that's the one that needs to be removed to do the oil pellet thing, right? How do I get to that, remove the fan? (for FC)



take off the fan and the crank pulley. but to take off the crank pulley you gotta take off the waterpump pulley. you have to take the pulley off so you can take the hub off... i think Im too lazy to go double check by looking at my motor lol, and its cold outside.



kevin.

Baldy 12-01-2005 02:16 PM

Good enough for me, thanks.

j9fd3s 12-01-2005 06:04 PM

for some reason on the fd's crank pulley bolt is on really really tight

RONIN FC 12-01-2005 06:14 PM


Originally Posted by j9fd3s' post='782938' date='Dec 1 2005, 07:04 PM
for some reason on the fd's crank pulley bolt is on really really tight

Maybe something to do with the FD clutch.

13BTNOS 12-02-2005 05:32 PM

Short 19mm socket, 1/2in Craftsman rachet and heavy sledge hammer. Place socket on rachet and then place on bolt, smack rachet handle with heavy sledge hammer. Has never failed me and has always worked on the first strike. And if the gears get damaged on the rachet take it back to Sears and get a new one.


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