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Old 03-03-2016, 01:43 AM   #1
Mrturner1
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Initial break in start accomplished, need help though

So the new build started, but only for 5 seconds. I turned the distributor advanced a bit, ran for 10 seconds. Turned it a bit more and it ran longer. Am I chasing the right timing? Is this process ok?
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Old 03-03-2016, 02:07 AM   #2
Mrturner1
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Re: Initial break in start accomplished, need help though

Ok got timing set and it runs like a champ. Only problem is my belt broke after about 10 minutes of 2300rpm for the breakin period. So I know it needs 25 minutes, but what if they aren't 25 straight minutes? I did 10 tonight, so can I get a new belt and fix the pulleys and give it another 15 tomarrow and be safe with all the new parts?
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Old 03-03-2016, 03:24 AM   #3
toolboxchev
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Re: Initial break in start accomplished, need help though

What belt broke? Alt. or P.S.
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Old 03-03-2016, 03:43 AM   #4
Mrturner1
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Re: Initial break in start accomplished, need help though

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Originally Posted by toolboxchev View Post
What belt broke? Alt. or P.S.
Alt/water pump, such a bummer
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Old 03-03-2016, 03:46 AM   #5
toolboxchev
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Re: Initial break in start accomplished, need help though

Its a small block Chevy, I have found these things to run in all kinds of conditions.

Maybe change the oil, run it again for a half hour.

Done. My initial break in did go that long, it seemed like a forever.
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Old 03-03-2016, 11:09 AM   #6
rcazwillis
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Re: Initial break in start accomplished, need help though

Most break in periods are for the cam & lifters. The purpose is to heat everything up and get it broke into each other. I would run the engine the full recommended time in a single shot and call it good.

Why did the belt break? Old or is there another issue?
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Old 03-03-2016, 12:14 PM   #7
Mrturner1
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Re: Initial break in start accomplished, need help though

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Originally Posted by rcazwillis View Post
Most break in periods are for the cam & lifters. The purpose is to heat everything up and get it broke into each other. I would run the engine the full recommended time in a single shot and call it good.

Why did the belt break? Old or is there another issue?
Pulley alignment. Looks like I need alternator shims
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