Todays activity...
Running in my new flat tappet mild Lunati 213/220 @ .050 kit incl. lifters, new stamped steel rockers and new pushrods, about .055 preload.
Cam riched lubed with the Lunati lube that came with the cam.
10w/30w oil with a bottle of cam break in oil add.
Oil primed 2 turns crank cycle, set the timing about 12-14 deg BTC, primed the carb with enough petrol, water in the cooler with the cap off to get rid of air pockets and start it up, it took about 10 second cranking before it starts.
Up to a good 2.000-2.500 rpm and it runs quiet and solid with about 50 psi oil pressure, the temp rises but I didn't manage to put the cap on the cooler until it overheated, that was about 4-5 minutes from start. Stop the engine but as I've did adjust the idle too high it dieseled for about 5-10 seconds until I put a towel over the carb to stop the engine.
I let it cool down for about 30 minutes, filled the cooler up and put on the cap.
Cranked about another 10 sec before it starts.
Up to a good 2.000-2.500 rpm, now the temp was OK and I run it for another 10 minutes until the exhaust was so hot that it began to smoke and smell more than I like, safe things first, and I shut it off to let it cool down for another 30 minutes.
Start it up and run it another 10 minutes with ok cooling teperature but the exhaust was real hot and shut it off.
Lunati says 20 minutes total of breaking in this cam and lifters, and togheter I'm up to about 25 minutes, do you think the cam is breaked in and safe to run on idle after new oil and filter, or should I give it another 10 minutes to morrow to be shure?
I'm not that popular in the neighborhood after today
Running in my new flat tappet mild Lunati 213/220 @ .050 kit incl. lifters, new stamped steel rockers and new pushrods, about .055 preload.
Cam riched lubed with the Lunati lube that came with the cam.
10w/30w oil with a bottle of cam break in oil add.
Oil primed 2 turns crank cycle, set the timing about 12-14 deg BTC, primed the carb with enough petrol, water in the cooler with the cap off to get rid of air pockets and start it up, it took about 10 second cranking before it starts.
Up to a good 2.000-2.500 rpm and it runs quiet and solid with about 50 psi oil pressure, the temp rises but I didn't manage to put the cap on the cooler until it overheated, that was about 4-5 minutes from start. Stop the engine but as I've did adjust the idle too high it dieseled for about 5-10 seconds until I put a towel over the carb to stop the engine.
I let it cool down for about 30 minutes, filled the cooler up and put on the cap.
Cranked about another 10 sec before it starts.
Up to a good 2.000-2.500 rpm, now the temp was OK and I run it for another 10 minutes until the exhaust was so hot that it began to smoke and smell more than I like, safe things first, and I shut it off to let it cool down for another 30 minutes.
Start it up and run it another 10 minutes with ok cooling teperature but the exhaust was real hot and shut it off.
Lunati says 20 minutes total of breaking in this cam and lifters, and togheter I'm up to about 25 minutes, do you think the cam is breaked in and safe to run on idle after new oil and filter, or should I give it another 10 minutes to morrow to be shure?
I'm not that popular in the neighborhood after today