[Roadsters] 1600 tuning issues

[Pete Peters]

According to Roy, the head was rebuilt at 5k; the motor at 20k (was the
timing chain/gears replaced at that time?). Engine was running fine up until
a few hundred miles ago, then slowly deteriorated. 

Wouldn't a timing chain jumping be instantly noticeable? And, while
possible, has anyone experienced a 1600 timing chain jumping? Isn't that
more likely in the OHC engines (U20, L-series)?

My money is on something more simple like floats and/or exhaust/vacuum
leaks. 

This has been a fun thread. Eagerly awaiting the resolution!


Pete