What does one month have to do with the problem? Are you hoping the engine will last a month until you can do the repairs, or are you hoping the engine will last for a month after the repairs are done?
The concern is whether the chain will jump a tooth or two, and that is not likely to happen if it has not by now. At the mileage you listed, consider replacing the chain, the guides, and the sprockets as a matched set. The camshaft sprocket often has plastic teeth to reduce noise. Those wear down a lot faster than steel teeth. Replacement sprockets are usually made of steel and are higher quality. You are not likely to notice any additional noise. We have been using steel sprockets to replace plastic or nylon sprockets for many decades.
Monday, January 9th, 2017 AT 7:27 PM