On my 26, which has the detachable ears, do you have to remove the brake and reverse bands in order to replace just the lowspeed band?
No just the brake band. I remove the brake band then slide the low band back and remove it.
I seem to recall seeing a post from Steve Jelf saying that when he replaced his bands he did the low band last, implying that the brake and reverse bands were already in place when he installed the low band.
Steve, do I have that right?
Dave, give it a try and let us know how it goes. Take it slow, and if you get frustrated, walk away from it for a while before you go back to it.
This weekend was the first long run for my 26,....about 150 miles round trip, after a complete rebuild, engine and drive train including transmission. I likely have about 400 miles on her in total.
Most of the components performed performed very well,...except the low speed band.
I installed kevlar bands when I rebuilt the unit which have had to be adjusted constantly. Although the reverse and brake bands have only required adjusting once.
I was told that kevlar bands take a while to seat in.
However this weekend I think I may have adjusted them too tight, when I got home and pulled the cover off it was obvious the low speed band has failed. I just hope I didn't damage the low speed drum,...what should I be looking for in a drum failure?
Kevlar doesn't "self destruct" - too tight causes excessive heat so most likely the drum cracked causing the "low speed band has failed" - have someone turn the engine over by hand while you observe the drums turning - you'll see something amiss !
The result of bands too tight with kevlar bands. The fault is not the kevlar, but the cam, notch and pedal alignment. It is very important that the pedal can move from high to neutral without compressing the band and then when pushing down beyond neutral it compresses the band and tight 1 1/2 inch above the floorboard. Unfortunately when things are worn it is necessary to adjust the band so that it is partially compressed when the pedal is in the neutral position and it will drag all the time the engine is running including in high gear or reverse.
The band should be completely released when you are in neutral or high.
Turns out I have a cracked low speed drum,....Damm !!
I have some spare drums but, turns out they are the narrow drums for the older transmission.
I thought only the brake drum was wider on the improved cars, the other drums were the same width as on the older cars. ???
Bummer Dave !
You are correct, Mark.
It's irrelevant if you have to take it all apart to replace the drum, but Mark is correct. I found it least difficult to do the low band installation after the reverse and the brake.