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-   -   counter weight removal (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/counter-weight-removal-921951/)

iani1.1 09-12-10 10:51 PM

counter weight removal
 
so i got the flex plate off today and been beating on the flywheel with a 2lb brass hammer for a good 5 mins but still wont budge. do i...

1. get a bigger hammer
2. beat on it some more
3. get a puller
4. do option 1 then 2

whats the "easiest" or fastest way to take this mofo off? any other suggestions would be appreciated.

Phearthe-Rx7 09-12-10 11:10 PM

https://www.racingbeat.com/FRmazda2.htm part #22003

I tried a few heavy pulling tools with no luck....this thing popped it off with ease

or if you have that flywheel/weight thing part #22002

jjcobm 09-12-10 11:11 PM


Originally Posted by iani1.1 (Post 10212519)
so i got the flex plate off today and been beating on the flywheel with a 2lb brass hammer for a good 5 mins but still wont budge.

I R confused. You got the flex plate off (which has the counterweight attached to it with bolts), but you are beating on the flywheel with a hammer??????

The counterweight is bolted to the flex plate. Remove the bolts and it seperates from the flex plate.???? :scratch:

If you are trying to get the flywheel off the engine (which stock flywheels have the counterweight integrated into them), you have to beat it repeatedly with a hammer. You MUST vibrate it off, giving it a few whacks here and there will not do anything. I recommend you wear ear plugs and just go at it. You know you are doing it right when, without earplugs, your ears will start to ring : ) The heavier the hammer, the better. Keep the giant nut threaded at the end, since it will just pop out without notice.

And as i've told people before, HIT IT LIKE A MAN.

iani1.1 09-12-10 11:24 PM


Originally Posted by jjcobm (Post 10212560)
I R confused. You got the flex plate off (which has the counterweight attached to it with bolts), but you are beating on the flywheel with a hammer??????

The counterweight is bolted to the flex plate. Remove the bolts and it seperates from the flex plate.???? :scratch:
.

my mistake i meant beating on the counterweight.

so it has to be vibrated off you say? you think an air chisel with a flathead attachment would do the trick?

jjcobm 09-13-10 01:02 AM

So you have the flex plate off the car and are trying to seperate the counterweight from it???

It has i think 4-5 bolts on it. Remove them and if it's still not coming off all I can say is try the hammer or air chisel to loosen it up. The counterweight shouldn't be attached too hard to the flex plate really, it's only held by those 4-5 bolts.

Pele 09-13-10 10:23 AM

^

No, he took the flex plate off of the flywheel and left the counterweight on the eccentric.

I've had success with putting the flex plate back on.

Also, you can put a prybar on the counterweight and use a tension bolt as a pivot. Pry and bang the counterweight at the same time...

jjcobm 09-13-10 10:37 AM

I am so confused. A flex plate is for an automatic car as a flywheel is for a manual car. You cannot have BOTH. You either have a flex plate or a flywheel.

I'll just hush now :twitch:

iani1.1 09-13-10 11:35 AM


Originally Posted by Pele (Post 10213065)
^

No, he took the flex plate off of the flywheel and left the counterweight on the eccentric.

I've had success with putting the flex plate back on.

Also, you can put a prybar on the counterweight and use a tension bolt as a pivot. Pry and bang the counterweight at the same time...

the air hammer didnt work to well. ill give that method a try thanks.


Originally Posted by jjcobm (Post 10213087)
I am so confused. A flex plate is for an automatic car as a flywheel is for a manual car. You cannot have BOTH. You either have a flex plate or a flywheel.

I'll just hush now :twitch:

yes you are right but the counterweight is behind the flexplate. the flexplate can be seperated from the counterweight.

it was partially my mistake, i needed to take the counterweight off not the flexplate.

jjcobm 09-13-10 11:37 AM


Originally Posted by iani1.1 (Post 10213185)
yes you are right but the counterweight is behind the flexplate. the flexplate can be seperated from the counterweight.

it was partially my mistake, i needed to take the counterweight off not the flexplate.

Ahh, then if you removed the flexplate from the counterweight, and the counterweight is stuck on the e-shaft, I would suggest you put the flexplate back on the counterweight. That way you get more leverage when you pound on it. It will be just like removing an flywheel. I don't see it coming out with the flexplate removed unless you get a puller...

RotaryEvolution 09-13-10 11:40 AM

don't overthink this one people..

go to the hardware store or find a bolt that fits the pitch of the flex plate mount holes and run it through until it contacts the rear stat gear, keep tightening the bolt and tap around the counterweight edge lightly with a hammer. be sure the 36mm flywheel nut is loose first of course. i just use a small impact gun to tighten the outer bolt and it pops right off without any fuss.

iani1.1 09-13-10 11:50 AM


Originally Posted by Karack (Post 10213196)
don't overthink this one people..

go to the hardware store or find a bolt that fits the pitch of the flex plate mount holes and run it through until it contacts the rear stat gear, keep tightening the bolt and tap around the counterweight edge lightly with a hammer. be sure the 36mm flywheel nut is loose first of course. i just use a small impact gun to tighten the outer bolt and it pops right off without any fuss.

ahh, thats about the same method i use on honda brake rotors.

simronrx7 02-15-22 02:56 PM


Originally Posted by RotaryEvolution (Post 10213196)
don't overthink this one people..

go to the hardware store or find a bolt that fits the pitch of the flex plate mount holes and run it through until it contacts the rear stat gear, keep tightening the bolt and tap around the counterweight edge lightly with a hammer. be sure the 36mm flywheel nut is loose first of course. i just use a small impact gun to tighten the outer bolt and it pops right off without any fuss.


Just wanted to say thank you because I tried dead blow hammers, hub puller, slide hammer, and even pry bar. Nothing worked until this. Can’t believe I didn’t think of this sooner.


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