ABM S&S Rebuilt Engine Makes Massive Pwr!
Hard 'n' Fast, First 20 Miles?
ABM "gets" why the master builders always celebrate the build's completion with a round of brewskies and a hearty burnout!
The Theory:
An engine, especially a V-twin's power output is only as good as the ability of the rings to set a tight seal against the cylinder wall. Pouring on the coal during the first 20-50 mi of a new engine's operation seats the rings tightly, preventing oil blow-by, thereby producing torque and hp gains over a leisurely break in. No synthetic, straight 20w-50 oil. We used drag specialties, but it could have been HD dino juice, or any other stout non synthetic. The plan is to switch to 50weight syn after a thou to 1500 miles.
Initial Miles:
With about 39 mi on the clock, I pulled her back into my garage for a quick filter and juice change. The oil was loaded with aluminum particles. Beginning Monday, each morning, the old girl got to go for a ride along the beach and back, about 70 miles per day, so she has around 400 miles on the new engine. After the initial blast-around, it's okay to simply cruise the country, or in my case, the beach at 40-50-60 miles an hour for the remainder of another 300 miles. I'll change the oil one more time before we split for Sturgis.
Amazing Performance!
A lot likely had to do with my wrench. ABM keeps a spare S&S 111 so we don't have down time during rebuilds, (and it makes a nice coffee table). An ill-fated trip to a brain-dead Daytona shop left the carb intakes so bent out of shape, it's a wonder she ran at all. This engine, with just 400 mi, even though the timing is a bit too far advanced, and we need to replace the newer style roller rockers with the old pre year 2000 style, is likely the hottest 111 we've ever run. I don't give that new Metzler 240 a snowball's chance in hell of surviving this summer's ride.
They say to baby a new engine, run synthetic, and don't do this or that for the first 500 miles. This is my 9th try at breaking in new v-twins. If the "same old, same old" worked, we'd still be doing it... enuf said.
ABM "gets" why the master builders always celebrate the build's completion with a round of brewskies and a hearty burnout!
The Theory:
An engine, especially a V-twin's power output is only as good as the ability of the rings to set a tight seal against the cylinder wall. Pouring on the coal during the first 20-50 mi of a new engine's operation seats the rings tightly, preventing oil blow-by, thereby producing torque and hp gains over a leisurely break in. No synthetic, straight 20w-50 oil. We used drag specialties, but it could have been HD dino juice, or any other stout non synthetic. The plan is to switch to 50weight syn after a thou to 1500 miles.
Initial Miles:
With about 39 mi on the clock, I pulled her back into my garage for a quick filter and juice change. The oil was loaded with aluminum particles. Beginning Monday, each morning, the old girl got to go for a ride along the beach and back, about 70 miles per day, so she has around 400 miles on the new engine. After the initial blast-around, it's okay to simply cruise the country, or in my case, the beach at 40-50-60 miles an hour for the remainder of another 300 miles. I'll change the oil one more time before we split for Sturgis.
Amazing Performance!
A lot likely had to do with my wrench. ABM keeps a spare S&S 111 so we don't have down time during rebuilds, (and it makes a nice coffee table). An ill-fated trip to a brain-dead Daytona shop left the carb intakes so bent out of shape, it's a wonder she ran at all. This engine, with just 400 mi, even though the timing is a bit too far advanced, and we need to replace the newer style roller rockers with the old pre year 2000 style, is likely the hottest 111 we've ever run. I don't give that new Metzler 240 a snowball's chance in hell of surviving this summer's ride.
They say to baby a new engine, run synthetic, and don't do this or that for the first 500 miles. This is my 9th try at breaking in new v-twins. If the "same old, same old" worked, we'd still be doing it... enuf said.
posted by americanbikerminute at 9:40 AM
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