Originally Posted by
halfman
I have ran 15 tanks through my new rb engine and i still dont know if it is broken in yet or what glow plug to run in it. Please help
At 15 Tanks your broken in. Hopefully it's still hard to turn over. Meaning with your hand trying to turn it over by the flywheel is difficult to impossible. A RB reaches it true break in after a gallon. This coincides with there long life characteristics. A RB #6 which is a med plug. Is a good all around plug for that engine. Keep temps between 220-250 and your good. Some run them hotter I wouldn't. 220-250 makes plenty of power.