Conversions & Hybrids - Crank bolt




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dmracing
04-29-2012, 08:30 PM
Whats the easiest way to remove it. Ive tried an impact and breaker bar. Any tricks?


aknovaman
04-29-2012, 08:56 PM
Bigger air impact wrench with more torque.

Bullitt4110
04-29-2012, 09:07 PM
Hold the flywheel and a big breaker bar. My 1/2" drive snap on impact usually doesn't even break them loose.


i r teh noobz
04-29-2012, 09:21 PM
If its not moving, get a longer bar or a bigger gun.

I've had luck with other cars by wedging the bar against the floor and bumping the starter.

bczee
04-29-2012, 09:26 PM
I use a 4' pipe on the end of the breaker bar.. Have been able to break loose any thing i've run across.

BC

-TheBandit-
04-29-2012, 10:11 PM
Just make sure you're using a strong breaker bar! I have snapped a couple 1/2 inchers in the past.

I've used the starter bump trick a few times in the past with success. Just be very careful with that one.

Rikoshay
05-01-2012, 09:49 PM
The factory bolt has red loctite on the threads. I went to Harbor Freight and got an electric impact gun and sat there for a minute banging on it before it budged. Applying heat helps.

the_merv
05-01-2012, 11:11 PM
Pull your skirt up and give it hell..:lol:



Some of them are in there..no joke.. I have a good 1/2" breaker bar with a 3' cheater bar.

merim123
05-01-2012, 11:16 PM
I use a 2' breaker bar with a 3' jack handle. The leverage is really easy at that point.

kainedogg
05-02-2012, 12:33 PM
My motor was on the stand, wedged a huge screwdriver in the flexplate (be careful not to bend it) then took my $7 Harborfreight 1/2" breaker bar and attached a 18" pipe to it, and voila, it came off. Getting the pulley off is another matter itself.

-TheBandit-
05-02-2012, 01:18 PM
Using the right tools makes the job a lot easier.

Flywheel stop to hold the motor is a nice tool:
http://www.etoolcart.com/images/products/display/J42386A.1.jpg

I made one
http://cjnn.xtremefabricator.com/images/LY6swap/ly6swap287.JPG

If the engine is in the car and you have a manual, you can lock the ebrake and put it in a high (5th/6th) gear to keep the engine from rotating.

Then use a cheater bar for removing the bolt
http://cjnn.xtremefabricator.com/images/LY6swap/ly6swap289.JPG

And a3-jaw puller for getting the pulley off
http://cjnn.xtremefabricator.com/images/LY6swap/ly6swap293.JPG

Here you can see where the jaws should be pulling from - there are three recessed areas cast into the pulley for this purpose.

http://cjnn.xtremefabricator.com/images/LY6swap/ly6swap294.JPG

dmracing
05-02-2012, 05:28 PM
Its on a stand, my fault

-TheBandit-
05-02-2012, 06:03 PM
Your fault???

the_merv
05-02-2012, 06:14 PM
You can bolt at piece to it while it's on the stand..

boostit5.3
05-02-2012, 06:41 PM
i've never seen a tool like that gonna have to pick one up..

wesmigletz
05-02-2012, 09:11 PM
i've never seen a tool like that gonna have to pick one up..

Any idea who sells them?

the_merv
05-02-2012, 10:03 PM
I've seen them on summit..

wesmigletz
05-02-2012, 10:36 PM
I've seen them on summit..

Thanks

builder1
05-02-2012, 11:48 PM
Heat the head of the bolt long enough so the heat tranfers down the bolt. Heat will loosen loctite or any thread sealer. I work on alot of Harleys and they loctite everything and that always works.

waterbug1999
05-02-2012, 11:58 PM
Heat the head of the bolt long enough so the heat tranfers down the bolt. Heat will loosen loctite or any thread sealer. I work on alot of Harleys and that always works.

X2.. I fought with it for hours one time, put a little heat to it and it came off with a a little tap of the 4lb shorty sledge..

chuckd71
05-03-2012, 10:56 AM
My motor was on the stand, wedged a huge screwdriver in the flexplate (be careful not to bend it) then took my $7 Harborfreight 1/2" breaker bar and attached a 18" pipe to it, and voila, it came off. Getting the pulley off is another matter itself.

I did basically the same thing but used the largest allen wrench that would fit in the holes to keep my flexplate from moving, then breaker bar and some elbow grease.
The pulley was a pain in the ass, broke a small puller and stripped a big one before buying one of these things and it came right off.

http://farm7.staticflickr.com/6214/6884208494_e9515d6d41_z.jpg (http://www.flickr.com/photos/21527394@N06/6884208494/) Untitled (http://www.flickr.com/photos/21527394@N06/6884208494/)