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engine and clutch break-in

846 Views 16 Replies 8 Participants Last post by  SpoolinSol
Well, it looks like I didn't think this through very well, lol. I'm planning on re-building my motor within about the next month; and i was planning on swapping in a new clutch while the motor was out. What i forgot about was that the motor needs a HARD break-in for at least the first 20 miles, while the clutch needs an EASY break-in for 500 miles.

Am i right in assuming that i just need to break in my motor with the stock clutch, and then put the new clutch in after the motor break-in?
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pending the knowledge you just gave me, that's what i would do!
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pending the knowledge you just gave me, that's what i would do!
thx for the feed back


also: i will be breakin in the motor running 8psi on a 14b... i don't think that will make a differnece, but i guess i'll just throw that out there...
hard break in? you shouldent be taking it over 3k for the first 500 miles, so thats ok to break in the tranny at the same time.
hard break in? you shouldent be taking it over 3k for the first 500 miles, so thats ok to break in the tranny at the same time.
hard break-in for the motor = running the motor hard for the first 20 miles seats the rings better ( http://www.mototuneusa.com/break_in_secrets.htm ).

Most clutches have a 500 mi break-in period (not suppose to more than 1/2 throttle)... not sure what you are talking about when you say i'm goin to break my tranny...
i did a hard break in on my motor, doin good thus far :TU:
yup, ive thrown plenty of cars on the dyno after just buildin the motor and have had no problems at all.
This is good info I'm doing the same as SpoolinSol in about a month new motor and clutch. Keep it coming guys.
This is good info I'm doing the same as SpoolinSol in about a month new motor and clutch. Keep it coming guys.
its lookin like we both gotta put the motor in; drive 20 miles then take the tranny back off... fuck....
Looks like i gotta find a used clutch Cause im doing a auto to manual swap. Do you think the clutch is really going to get that fucked up in 20 miles?
Looks like i gotta find a used clutch Cause im doing a auto to manual swap. Do you think the clutch is really going to get that fucked up in 20 miles?
i'm not sure; but when i'm spending $350 on a clutch i don't wanna risk it...
ceramic clutches dont really need break in... I vote just put in a 6puck and let her EAT!!!

and yup hard breaking is the shit and its fun :)
hell yea it is! started my car after the fresh bottom end when in. Let it idle for a bit while i fucked with some things, then as i puled out of the parking lot, did a nice burnout through 2nd ebfore i even hit the road :)
ceramic clutches dont really need break in... I vote just put in a 6puck and let her EAT!!!

and yup hard breaking is the shit and its fun :)
i'll let you know if it's fun in the snow, lol
o in the snow... Id wait for a nice clear day.. you want load to be on the motor not just RPM lol... in the snow spining=little to no load.
If I were you I would definitely take the time to replace the clutch after your engine breaks in. I would be royally pissed if my new clutch didn't seat right because I was too impatient to do a 2 hour clutch swap.
o in the snow... Id wait for a nice clear day.. you want load to be on the motor not just RPM lol... in the snow spining=little to no load.
i'm planning on waiting for a day when the streets have salt so i can get traction; and get over to the highway ASAP and go crack some gears on the highway until i hit ~20 miles
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