Looking for some info on brake cylinders on a PA-18-150 with 8.00 tires. Was looking at the direct univair replacement but see Dakota cub has a high pressure version. Would this be too much pressure for the smaller wheels? Any other solutions to look at?
Looking for some info on brake cylinders on a PA-18-150 with 8.00 tires. Was looking at the direct univair replacement but see Dakota cub has a high pressure version. Would this be too much pressure for the smaller wheels? Any other solutions to look at?
Looking for some info on brake cylinders on a PA-18-150 with 8.00 tires. Was looking at the direct univair replacement but see Dakota cub has a high pressure version. Would this be too much pressure for the smaller wheels? Any other solutions to look at?
The one on the left after straightening. The right one before.
View attachment 40691
What exactly are you thinking about? The master cylinders must be matched to the wheel cylinders. Which brake cylinders are you asking about? The masters or the wheels? Since you mention 8:00 tires I can assume that you still have the original expander tube wheel brakes? Those are matched to the master cylinders to which mike and Bob are referring. This system utilizes low pressure (350 psi max) and relatively high volume. The diaphragm needs to be maintained. Whereas all of the available modified or replacement master cylinders are intended for disc type wheel cylinders. These require higher pressure (aprox three times as much) and lower volume for proper operation. Grove does have a disc modification for the original 4" wheels which have the expander tubes type of drum brake. They are the only ones that have a direct conversion for both units.We're doing a rebuild and need to replace the existing brakes cylinders. I see Steves also has a brake set. Was wondering if these are more meant for the larger bushwheels and would have too much pressure for 8.00s? I started out thinking I'd just order the replacements from Univair but now see there are some other options.