After the restoration: Engine Teardown [page 10]
Wednesday, July 7, 2010 [19326 miles]
The 4th of July party is done, I've seen my dentist more times than I'd like, and I'm taking a small rest from digging holes in my back yard looking for broken sprinkler solenoid control wires. That means I can once again spend time on the R69S. It helps that Brent called last week to say the slingers I'd ordered are here and my cam is done. I threw the cam bearings in my tank bag and rode over today to pick up the parts.
New cam
Compared to old
Here is my pretty, freshly ground sport cam. If you look closely at the comparison picture you can see that the cam lobes will lift the valve somewhat quicker and keep them lifted a bit longer. Time to put the cam assembly together.
Bearing in holder
Bearing on cam
Key installed
Brent tapped the old bearing out of the holder installed the new bearing and keeper. I took pictures. Then we went over to the press where he pressed the bearing and holder onto the cam. We came back to the bench to add the woodruff key.
Needs heat
Heating cam gear
The cam gear needs heat. Brent was out of Mapp gas. I waited while he went and got some. The second picture shows the tip of the Mapp gas nozzle under the gear, getting the bottom good and hot. I held the cam from rotating while Brent dropped the hot gear onto the shaft.
Check fully seated on cam
Cooling
Brent put the assembly in the press to be 100% sure the gear was fully seated. It was. Lastly a new bearing was pressed onto the rear of the cam before setting the assembly aside to cool. Once cool we wrapped it up in plastic to keep it clean before I put it in my panniers for the ride home. Brent gave me a tube of special lube to slather over the surface of the new cam before installing in the engine case.
Tomorrow I have some more errands to run, but hope to get some time to work on the bike, too. I'd like to have it back on the road by the end of the month.
