Propane tank threading....?

[MrCoffee]

Ok, on my '71 (Classic I guess?" has two 30lb(?) propane tanks on the front, both connected, one still has propane in it. I tried to remove them, since they are rusted to heck, and was planning on replacing them both.

Since my Hi-Lo is older then dirt, the propane connection thread into the inside of the tank nozzles, not the outside. Well I put a large adjustable on each them, one at a time, and tried to unscrew them. No luck, not even a budge. Ok, liquid wrench and wait a day, Nadda. OK a 3' pipe for leverage.... nope.

Am I missing something? The threads on the newer tank is standard, could these older tanks be a left hand thread or something? When I put full pressure on the pipe trying to get the fitting to break free, I actually lifted/moved the trailer a bit.... so it isn't lack of force.....

 

[Jeff H-HILO]

I believe that those were left-handed threads.

Jeff

 

[C317414]

Jeff is correct; they are left hand threads.

Once you remove the tanks you will need to buy two new hoses that go from the regulator to the tanks. These will have the new style tank fittings.

Raul

 

[MrCoffee]

I believe that those were left-handed threads.

Jeff

Yup, and boy did I tighten the crap out of them.... :/

Got both tanks off finally!

Thanks!

 

[JoeJones]

Gas tank threads

Gas tank fittings are ALWAYS left handed threads. Probably the only thing on our HiLo that is not right handed threads. Old timers can correct me if necessary!
Joe Jones

 

[C317414]

Gas tank fittings are ALWAYS left handed threads. Probably the only thing on our HiLo that is not right handed threads. Old timers can correct me if necessary!
Joe Jones

Not always, the old style gas tank fittings are left hand thread. The new style ones are right hand thread. The new ones also do not require a wrench.

Old: http://www.rv-motorhome-answers.com/images/oldservicevalve.jpg

New: http://www.bensdiscountsupply.com/ProductImages/regulator_connection.jpg

Raul