Stuck nuts and bolts

Hi,

I've been trying to change my rear shocks today and am struggling with one of the top bolts. I'm been failing with a 1/2" ratchet/extender/hammer/wd40. Should I invest in a big 3/4" breaker bar or even a impact wrench? I get the feeling most of the big rusty nuts and bolts on the underside are the same way.

Cheers!

 

Try plus gas same as wd40 but better or keep lashing with we'd try it .

 

Plenty of penetrating oil and patience, I thought the top bolt can sheer away from it's fixing on the body if you are too persusive which could be a big issue, I am sure one of the guru's on here will have better advice

 

Asda £2 a can and better than wd40, and my breaker bar would do the trick.

 

Yes I've heard it can sheer. An the nut/thread is quite difficult to access for the penetrating oil

 

Lump hammer / ring spanner / tap.

 

actually I said wd40, it is actually £2 penetrating oil...

 

like a rather big long spanner? I reacon' its pretty well stuck

 

windy gun

 

Hit it harder them.

 

Freeze spray always a winner and what Zeds says. Try tightening it a touch.

 

And this of course, but I assumed as the OP couldn't get the bolt out, he didn't have one.

 

I find impact sockets on a sturdy wrench will get just about anything loose... I always use impact sockets on suspension parts as they fit exactly allowing you to use a lot of force! If access is too tight for a long bar, can you get a jack under a shorter bar on the other side? Used this trick a couple of times (also handy if you have to change a flat tyre with a tiny wheel brace!)

 

Use your trolley jack to apply pressure to the breaker bar
After a good soaking in plusgas fluid

If thats no joy then you need heat next
My diy heat of choice is a gas blowtorch but it takes longer to build up the heat compared to oxy accet

 

thanks to everyone for the input. will try a few things tomorrow morning then report back
cheers!

 

be careful it does not come off the jack ,a bar/wheelbrace can be dangerous under pressure...

The longer the bar the less effort one has to make.

 

Plus Gas and patience....