Engine kit break in period

[Foxstar45]

Hi. Lots of you have installed engine kits, 860s, 880s, 872s. Is there a significant break in period required on any/all of these kits? By significant I mean not being able to hold it wide open for any amount of time for the first 300kms. I can handle not being able to go WOT for 10-15 seconds at a time or more, but I can't see being able to putz around for 2 weekend trips. Any help would be helpful. ;-)

 

[Bnorth]

Break em in hard, the way they're going to be ridden.

 

[Clode]

I always give them a couple of good heat cycles and cool downs I idle the new engine (no belt, 1500rpm) until hot and let it cool completely and repeat, it seems to season the forged pistons....then pin it after a warm up and don't look back

 

[maxwell]

whats a break in

 

[maxwell]

I always give them a couple of good heat cycles and cool downs I idle the new engine (no belt, 1500rpm) until hot and let it cool completely and repeat, it seems to season the forged pistons....then pin it after a warm up and don't look back

this.

 

[neilsleder]

I always give them a couple of good heat cycles and cool downs I idle the new engine (no belt, 1500rpm) until hot and let it cool completely and repeat, it seems to season the forged pistons....then pin it after a warm up and don't look back

This but maybe first tank should have a bit of oil in it! And if it's a fresh rebuild cause it blew up, put fresh gas in it just in case if bad fuel had a hand in it blowing up. My neighbour did this! Had a Mach that was blown up sat for 4or so years, rebuilt the motor. Never put fresh gas in and drove it and burnt the pistons up lol.


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[Vance Matheson]

This but maybe first tank should have a bit of oil in it! And if it's a fresh rebuild cause it blew up, put fresh gas in it just in case if bad fuel had a hand in it blowing up. My neighbour did this! Had a Mach that was blown up sat for 4or so years, rebuilt the motor. Never put fresh gas in and drove it and burnt the pistons up lol.


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thats just dumb

 

[oler1234]

Three heat and cool cycles in the shop, 1 easy run and your good to go. The heat/cool cycles are critical to seat rings and seal the nikasil on cylinders. I usually do 1 easy run with addition oil just to finish the process and assure no air in the oiling system.

 

[gdhillon]

what do you mean by heat cycle? Is that start it up warm it up and then turn it off?

 

[Clode]

what do you mean by heat cycle? Is that start it up warm it up and then turn it off?

take the motor slightly above normal operating temp and let it cool completely and repeat