removing crankshaft nut on 94 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 05-10-2013, 12:08 PM   #1
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Default removing crankshaft nut on 94

I need tips on removing the crankshaft nut on my car.
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Old 05-10-2013, 12:29 PM   #2
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Entitlement is a very negative quality to have
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Old 05-10-2013, 01:13 PM   #3
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Find proper size socket/wrench. Hold pulley with tool similar to the one FM sells. Unscrew bolt. That's all there is to it.
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Old 05-10-2013, 01:40 PM   #4
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Quote:
Originally Posted by entropy1944 View Post
I need tips on removing the crankshaft nut on my car.
1: Prevent crankshaft from rotating.

2: Insert appropriately-sized socket onto breaker bar.

3: Apply socket to bolt.

4: Apply force to handle of breaker bar so as to rotate bolt counter-clockwise as viewed from front of car.



#1 can be accomplished by putting the transmission into 4th gear and fully applying the brake. If your car has an automatic transmission (which you didn't specify) then you'll need a special tool to hold the crank in place, such as this: Flyin' Miata : Miscellaneous : Tools : Flyin` Miata crank bolt tool/crank holder (You can also make this yourself from a piece of scrap steel or angle-iron which you have lying around.)
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Old 05-10-2013, 01:40 PM   #5
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Tip one: its not a nut.
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Old 05-10-2013, 01:41 PM   #6
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Well, there's definitely a nut somewhere around here.
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Old 05-10-2013, 01:51 PM   #7
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LOL. Props Curly.
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Old 05-10-2013, 03:20 PM   #8
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I'd go for the Rennmetal tool just because it works for both woman engines and man engines, and short nose crank cars as well.

Rennenmetal.com
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Old 05-10-2013, 06:16 PM   #9
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Quote:
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Entitlement is a very negative quality to have
Post of the year ITT.
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Old 05-15-2013, 11:08 AM   #10
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If you want to be a cheesedick about it, you can also slip a large pipe wrench over the crank pulley. It leaves small gouges, but it'll work in a pinch.
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Old 05-15-2013, 11:35 AM   #11
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I'm a tad surprised that nobody mentioned the "put wrench on crank, then engage starter" trick.

Sometimes effective, always dangerous.
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Old 05-15-2013, 11:38 AM   #12
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Quote:
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I'm a tad surprised that nobody mentioned the "put wrench on crank, then engage starter" trick.

Sometimes effective, always dangerous.
It works for me every time.
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Old 05-15-2013, 12:46 PM   #13
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Visions of my breaker bar snapping at the hinge and flying across the garage have prevented me from ever trying it. 4th gear and brakes have always worked for me.
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Old 05-15-2013, 12:57 PM   #14
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Quote:
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Visions of my breaker bar snapping at the hinge and flying across the garage
In for vid!
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Old 05-15-2013, 01:33 PM   #15
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Quote:
Originally Posted by Joe Perez View Post
I'm a tad surprised that nobody mentioned the "put wrench on crank, then engage starter" trick.

Sometimes effective, always dangerous.
With how cheap electric impact guns are these days... Thats how I've always zipped it off. It goes back in with a torque wrench, 4th gear, and someone standing on the brakes though.
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Old 05-16-2013, 07:20 AM   #16
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Quote:
Originally Posted by Leafy View Post
With how cheap electric impact guns are these days... Thats how I've always zipped it off. It goes back in with a torque wrench, 4th gear, and someone standing on the brakes though.
You'll pop a blood vessel before you put enough torque to turn the motor if you were to have the hand brake on on top gear so no no one needed to stand on the brakes.
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