Brad An oxy/ace torch is very hot and can destroy a part in the hands of a novis. A MAPP gas torch is hotter than propane but not as hot as an oxy/ace torch. They work quite well for removing tough bolts and the like. They don't cost any more than propane and are just as easy to use. Joe 76 NYB --- Brad Hogg <roadhogg@xxxxxxx> wrote: > > > ...Having used a propane torch for this purpose I can > say that the heat they > provide is minimal at best. Trying to heat an > engine block with that torch > might not be enough. IMO you should try a more > agressive heat > source...oxy/acetelene would be perfect. (of course > that is hot enough to > melt metal so watch what you are doing) > > ----- Original Message ----- > From: SFSurfDude@xxxxxxx > To: mailing-list@xxxxxxxxxxxxxxxx > Sent: Monday, March 15, 2004 9:15 PM > Subject: IML: Broken Bolt removal > > > Hello... > I am attempting to remove as mentioned before a > broken bolt which is > snapped off while loosening it. It is broken at the > top of the threaded area > on the pulley bolt for the fan. It is holding the > left side of the water > pump in place. Bolt is approx. 4 inches in length, > 3.60 of it I have in > hand. Obviously to get to that broken threaded area > in the block I have > removed all components in the way etc. > As I feared initially, the other pulley bolt which > is still intact looks > as if it is due to play a repeat preformance of the > first bolt. I have tried > an entire can of penetrant over a two week period. I > have applied propane > torch heat to the exposed bolt which s I mentioned > is still intact. Nothing, > no results. period. > I am in the high desert, not within the LA Valley > where I could take the > car in on a 40 - 60 tow to a place that does the > removal by zapping the bolt > away in bits, forgot the name of the process. > So it looks as though its "old school". > Along with my fire extinguisher I fearfully heat > this bolt inches away > from the fuel pump. Its smoking like crazy, well at > least the first 20 > minutes it was. > I have also hammered on the end of the bolt as my > experience has shown > that works from time to time. Even the old tighten > it slightly, it doesnt > budge. > Any suggestions? Maybe weld the pulley till I do > the rebuild, Nah... > > Regards, > > Patrick Williams > > High Desert, Southern California > 65 Ford F 350 Super Duty Dually > 64 Chrysler Imperial Crown Coupe > 64 Chrysler Imperial 4 door > 79 MGB Roadster > 89 Ford Ranger > 86 BMW 325es > Ford 9n > > >