tricks to stuck props?????

[bigsick]

Changing from a 2 blade Martec to a 3 blade Campbell Sailor. Can not get old prop off. Have tried PB blaster, heat, prop puller, wacking it and combinations of all 4, not a budge. Any tricks to the trade. I will give it one more weekend than will cut off the prop.

 

[fstbttms]

A prop puller (not a gear puller) will do the job. Pressure, shock and persistence are the key. If the first attempt fails, reposition the puller and try again. A torch on the prop hub will help too.

You did remove the prop nut, yes?

 

[kloudie1]

Be very careful with the whacking.Very easy to ruin the transmission bearings while whacking.. I agree with fstbttms a prop puller tensioned up a lot .. then apply heat to the hub of the prop .. Then carefully whack the head of the jack screw of the puller. A puller something like this:
http://www.google.com/imgres?imgurl...CrK84APQn4CIBA&sqi=2&ved=0CF8Q9QEwAw&dur=3390

 

[Charles Erwin]

Caution - as the two most recent commentators above have already said.

Striking anything in this assembly is risky. Striking the aft end of the shaft or the jack screw of the puller (always after max tension is established) must be done with great care - because striking the end of the propeller or the puller screw still drives the shaft toward and into the transmission -- not good. You can strike the propeller (at the hub) from the side but even then caution is warranted.

Heat will do the trick - but you may need more than your average propane torch. If you don't get it today using a simultaneous application of max tension and heat - then tension the puller to the max and let it sit overnight.

Charles

 

[Ralph Johnstone]

Have tried PB blaster, heat, prop puller, wacking it and combinations of all 4, not a budge.

I don't know what you're using for heat but unless the flame is hotter that hell and just as big, it just won't work.

The idea is to heat the prop hub MUCH MUCH faster than the shaft so the hub gets hot (expands) and the shaft stays cool (doesn't expand).

If possible, rent an oxy-acetylene torch with the largest tip you can find. Crank up the puller as tight as you can get it, and heat the hub as fast as you can being careful not to heat the shaft.

If you really want to take it to the extreme, cool the shaft with dry ice before starting this exercise.

Good luck and let us know how it goes.

 

[Richard Bryer]

It is amazing how stuck a prop can be. I had to use a puller that had a hydraulic "ram" cylinder which multiplied the force many times when it was screwed in. Also heated the hub with a benzine type torch that puts out more heat than just a propane one. That and a couple of raps on the hub did the trick. Keep a prop nut screwed on a few threads to prevent the prop from flying off the end of the shaft when it does let go. Keep hands out of the way

 

[Ken13559]

After you've pulled the prop off, clean up the shaft taper and apply never seize or suitable anti seize before putting in CSP. That way you won't have problem pulling out the prop when need to.

 

[fstbttms]

After you've pulled the prop off, clean up the shaft taper and apply never seize or suitable anti seize before putting in CSP. That way you won't have problem pulling out the prop when need to.

Absolutely do not put anything on the mating surfaces of the shaft taper and prop hub before installing the prop. These parts are designed to be fitted dry and doing anything remotely like suggested above can keep your prop from seating properly and could conceivably lead to loss of the prop. Props are not supposed to come off easily. That's why they invented prop pullers.

 

[bigsick]

Got It!!!!!!!!!

Was using the wrong prop puller. I was using one with 2 long steel plates and two bolts below the prop. It was not pulling consistent around hub. I got a puller that had 3 bolts around the hub. Started wrenching and POP, it shot off.