Here are a few more shots of the completed spreader thru bar installation. Using a center punch sped up the removal of the port side bracket & rivets. The center punch drove the mandrel into the rivet body so there was less metal to drill out. After drilling off the rivet flange I then used a drift to drive out the remains. The Harbor Freight pop rivet tool was tamed be using a small vice grip to prevent the mandrel from being driven inside the mast while cycling the pop rivet tool.
Two 1/4" bolts 1 1/2" long were used to attach the spreader to the thru bar. The thru bar went in with one tap of the hammer. The small thru rod interfered with the thru bar and during the installation it fell down inside the mast. It was not welded as previously thought. It is a little scary to see the amount of metal removed from the mast to install the thru bar. Hopefully no masts have come down with the thru bar installed.
We have a race tomorrow so that is why the last photo is after dark...
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