Thermostat housing & Cooling

Re: stud extractors. I have 2 old baccy tins full of these which I was given but was told they're for selling on or decoration as they cause more trouble than they're meant to solve. Seems I was told the truth.
While I had this 2000 on the floor I did everything I could think of short of actually doing any mechanical work... :D Sideplates, thermostat & the front bit for the sender, plate on the back of the head, off & new gaskets. Oilpipe 'O' rings replaced. Carb cleaned (& freed up), new gaskets. Had a new jet but the choke connection was on the opposite side so couldn't use it. Made good with the old one & new bits from the kit. Hope it'll work.. :;): Sorted the throttle linkage with most of the 2000's & a bit of the 2200's today. Love it when things work out right. Fitted the new Master & slave clutch cylinders complete with new hose to power the new Fleetway assembly.

All good fun.... :D :;):
 
And for future peace of mind, wire brush the thermostat housing studs, coat them with "never-seize", remove the corrosion from the housing cover with a drill of the proper size, and this problem will not happen to you again.
Dick West
 
Good advice from the Rovering Member. This I did , years ago, and the result was that, after sitting idle outdoors for 12 years, my P6 came apart easily with no broken bolts or cutting involved.The entire exhaust was salvageable thanks to never- seize, and high temparature paint.

Dick West
 
Just a quick aside on the issue of stud extractors. Snap On make an excellent set which are not the reverse thread type (which is very important if the broken stud happens to be a LH thread as mine was!) instead these are hardened steel bars of various size and a set of matching drills. Drill out your stud with the CORRECT bit, drive the steel bar into the hole with a good hammer and unscrew with an appropriate socket spanner. I know it sounds rubbish, but they really work and don't break off.
 
The Snap-on extractors DO work but not if the part that remains in is seized there. So ok for taking out the broken piece if the bolt snapped going in, but not if it was seized in there and you're trying to remove it.
 
In my experiance nothing works in that case except drilling it out completely and fitting a helicoil or cutting a new thread.
 
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