Mechanical Question - Frozen Pedal

[Archie Sturmer]

If the right side pedal can be removed, perhaps it can also be re-installed backwards, so that the pedal is inside of the frame; that way the right pedal, against the frame tubing, can act as a stop for the crank, when torque is applied to the left pedal.

 

[Tim the Skid]

Sometimes cutting the crank arm and getting replacement is cost effective on that bike. But experience of frozen part struggles is priceless.

If you decide to cut the crank or pedal shaft, I think I have that chain ring and crank in my parts shed. If you want it I'll give it to you. Message sent.

 

[SamG]

UPDATE:
I allowed it to saturate with PB overnight. I even woke a couple of times during the night and gave it a little spray. At 11am this morning I could not get it to budge. I needed to go to the shop where I got the bike anyway so I took it with me. The owner who is 6’5” with the correct tools and 20 years of experience was able to get it off. It took some effort even for him… but saved the crank, pedals, threads, etc…. These are nice vintage white pedals too just what I need for this project!!!!

While I was there I took this bike off his hands… I have no idea what it is. No badge… no markings I could see at quick glance under all of the dirt, rust and grime. It has a double top tube similar to the Rollfast I got from him but I suspect they were common in the day. It was displayed next to the Murray I nabbed last week with the frozen pedal and had same accessories and flower pots, etc... making me believe it was the same owner male/female bikes. Perhaps another Murray??? He had no idea either. Something I can consume the remainder of that PB with!!!

Thank you everybody for your generosity and advice!!! I learned a lot from this one task!!!

 

[Archie Sturmer]

Your 'new' bike looks like it has a Murray sprocket.

And "double twin" tubes.

 

[SamG]

Thank you!!

 

[AndyA]

If the right side pedal can be removed, perhaps it can also be re-installed backwards, so that the pedal is inside of the frame; that way the right pedal, against the frame tubing, can act as a stop for the crank, when torque is applied to the left pedal.

That's a good idea if you can get one pedal off. But there is an easier method: tie one crank snugly to the chain stay on the same side with some light rope. Can't move.

 

[SamG]

Your 'new' bike looks like it has a Murray sprocket.
View attachment 1782655

And "double twin" tube

I just Googled that the double twin tubes were 1958-1968 if that is accurate

 

[AndyA]

The owner who is 6’5” with the correct tools and 20 years of experience was able to get it off. It took some effort even for him… but saved the crank, pedals, threads, etc….

The conflict in this story is man versus nature. It illustrates the resilience of the human spirit in direct opposition to the forces of nature. In this story, the protagonist wins out over iron oxide. And perhaps he learned some lessons that will help him in future conflicts. Hooray!

 

[razinhellcustomz]

Heat it up and let it cool down. The expansion and contraction will break the rust hold free.

I always use the quench method where heat up the crank arm toalmost cherry red and pour water on the crank. You may have to do this several times to break the rust free. Good luck..

 

[razinhellcustomz]

If ya have to cut something…cut the pedal off. Then you’ll be able to take the crank out. A good machine shop should be able to remove what’s left of the pedal

I've done this in a pinch and took an oxygen actilene torch and burned out the remainder of the axle with good results..