i've read plenty of posts on taking off the stock one, but has anybody removed the unorthodox udp?? i took the stock one off without much of a problem. using a crowbar and such to do it. nonetheless, i'm about ready to ram my head through a wall trying to take off my present udp. i know there's an access port to the flywheel on the driver's side. however, there's a crossmember of the suspension right in front of it which almost renders it useless. i've tried using a small punch and hold it between the teeth, but i think that it's just gonna tear up the teeth more than what it already has if i keep trying it that way. i just need to get the pulley bolt off and i can go from there, it's just a matter of that worthless bolt!!!

 

I read if you hold a breaker bar on the bolt and then crank the engine a little without starting it, the bolt should come loose.

Try that.

 

yeah, that woulda been so much easier should i not be able to look right at the camshafts right now and have all the injectors off think an impact wrench would work just for taking it off?

 

If the starter is still attached, you can still bump it over. You don't need the injectors in or the valve covers on.

I can personally vouch for this technique; I did it to install mine.

 

You can get to to the nut but can't turn it? Or you can't even get to it? What I do for real stubborn nuts/bolts is put a long pipe over my wrench for more leverage/torque. (M=Fxd) Good luck.

 

OK, I installed the UDP and used the starter/breaker bar method with great success.

However, I tried to remove 3 months later and no go. I took it to a friend who had a 650 lb impact wrench and it still wouldn't come off, he was afraid it was going to break the bolt.

To make a long story short I had to heat the bolt with an oxy/acet torch, with a very small flame so it just heated the bolt and did not get on the pulley (cuz its alum of course) after 5 mins of heating it finally came off with the 650 lb impact wrench.

It ain't fun if you have to go through that.

Good luck.
Jim

 

Why does this happen? Is it due to the softer metal of the UDP "sticking" to the bolt? Or the bolt sinking into the aluminum?