Front Caliper Removal

[280ZManiac]

I am replacing my stock '77 280Z front calipers and can not get the damn bolts broke loose. I have socked them with penetrating oil but I guess I need to let them soak longer. Short of a hacksaw and a blow torch any suggestions on how I can loosen them. Thanks.

280Z on its way to being a daily driver

[geezer]

I find that frozen bolts break loose the best after soaking with Kroil, but have had great results when using PB Blaster and heat from a propane torch, when possible. It will be just the initial cracking loose. Don't be afraid to use some leverage with an extended pipe or johnson bar, and apply some muscle.

[Nissanman]

If it is your first time in removing these fasteners, it can be tough.

I find a socket bar with a length of steel pipe [24" min.]slipped over it, gives you a great advantage when attempting to loosen these.

Just make sure the socket is a snug fit and engaged properly, then gently haul on the end of the bar:devious:

[DeesZ]

I am not that well educated in this topic, but would an impact wrench be a suitable tool in this instance? The "hammering" effect has loosened many very sticky situations for me. Or is there a reason that this would not be recommended for this situation?

[Nissanman]

Yes, an impact wrench would probably be quite OK, providing you can get good access to the fasteners.

I don't have one so it didn't occur to me:surprised

[280ZManiac]

I just finished bleeding my new front calipers. I ended up using the 24" breaker bar and a lot of leverage to get them off. Thanks for all the help.