RE: IML: Seized Anchor Bolts?

["Dick Benjamin" <dickb@xxxxxxxxx>]

Ned;

 

There are much better penetrants for loosening stuck bolts.  One I’ve found that is very good is called “PB-Blaster”.  It is sold at Autozone stores, and probably many others.  It is in a yellow can.  

 

Also, I’d like to add my agreement to the person who mentioned tightening a bolt slightly first before trying to unscrew it.  This seems to loosen the rust in the threads and crush it, making the bolt free up more easily.

 

If this doesn’t work, and if you can do it without damaging something else, use a low temperature torch (like propane or MAPP gas) to heat the bolt to just short of “cherry” red, then let it cool and try it again.  This will usually powder the rust and let you unscrew it normally.

 

I’m not familiar with the Crown Imperial brakes – I think they may be different from the lesser Mopars – so I’ll defer to others who are more knowledgeable.

 

Dick Benjamin

 

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From: mailing-list-owner@xxxxxxxxxxxxxxxx [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of Imperial48@xxxxxxx
Sent: Monday, November 22, 2004 2:42 PM
To: mailing-list@xxxxxxxxxxxxxxxx
Subject: IML: Seized Anchor Bolts?

 

I found out that I did  have the right brake adjusters located on the 1948 Crown Imperial.  The cams turn but don't appear to really do that much, however the Anchor bolts will NOT turn at all. 

Both front drums are off but won't go on until the shoes are adjusted.  Is there a better way to free up those Anchor bolts?  I have put WD-40 on them in hopes that they would loosen.  That didn't help so I tried a little Kroil on them and that so far hasn't worked either.  I have read that the proper lubricant for them is "Lubriplate" which I will use once I get the Anchor Bolts loosened and any penetrating oil removed.

Are there any suggestions out there?   I really need to get those tires rolling!

Thanks

Ned     '48 Crown Imperial