Can't remove loader

[Tig]

I have an LA300B loader on my B7100. It's detachable and looks like it should come off in about 5 mins. Problems is that the where the loader upright sits in the pocket on the left side of the subframe I have rust. Enough rust apparently to fuse the subframe to the loader upright. I am soaking the area in a 50-50 mixture of diesel and motor oil. I have used a hydraulic jack to push them apart. It didn't budge. Has anybody got any ideas on how to get them apart? I am trying to be patient before I use heat on the subframe.

 

[Tig]

I just found the "wax on rusted/frozen parts' thread. Sounds like that is my next step.

 

[Soundguy]

Post back if you don't have any luck.

I've found ATF mixed with Kerosene or diesel makes a good 'unstickem' too.

Soundguy

 

[Tig]

No luck with wax. I had to dis-assemble the one side of the loader to get it off. Then I removed the subframe. It was soaking in diesel and motor oil. I'll keep that up and see if it works loose over time..

 

[schmism]

remind me again why this isnt a great application for a big hammer!?

 

[Jay4200]

No luck with wax. I had to dis-assemble the one side of the loader to get it off. Then I removed the subframe. It was soaking in diesel and motor oil. I'll keep that up and see if it works loose over time..

Try hitting it with "PB Blaster" penetrating oil - comes in a spray can. I've had pretty good luck with it - WalMart sells it.

JayC

 

[Tig]

Big hammer? Yeah, I tried that. I put a piece of 2x6 on the upright and splintered it with a 5lb sledge. I figured I'd quit while I was ahead.
I'll keep my eyes open for the PB Blaster.

 

[john_bud]

I've switched to the penetrant GM service techs use. Heat pipe penetrant and antirust or similar is the name. The guys that twist bolts for a living use it when they need the nuts to come off. They only get paid a flat rate for the job as dictated by the book. Waiting for a bolt to work loose isn't in the cards!

You can only get it at a Chevy or GMC dealer. About 10 bucks and worth it.

jb

 

[390GT]

FWIW, I've had great results using PB Blaster. Just don't get it your eyes.

 

[BTDT]

Any pics of area in question? Sounds like a hydraulic jack may be needed to help press things off/apart.