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Old 10-28-2017, 12:08 AM   #1
Marcus4800
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Excitied

I have been restoring my wife's grandfather's 63 C10 pickup since April. In the morning we plan to start the motor. It will be the first this original motor has ran in 20 years. I took the motor to a machine shop and had it rebuilt about 6 weeks ago so I hoping she runs like top......

Last edited by Marcus4800; 10-28-2017 at 02:35 AM.
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Old 10-28-2017, 12:16 AM   #2
geezer#99
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Re: Excitied

What are you using for break in oil?
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Old 10-28-2017, 01:00 AM   #3
Marcus4800
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Re: Excitied

Machine shop told me to use 10w-40... Should I use something different....
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Old 10-28-2017, 01:31 AM   #4
1971 GMC SHORTY
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Re: Excitied

Kid Use Lucus Breaking oil High in Zink will Seat Rings Better
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Old 10-28-2017, 08:32 AM   #5
DPowers
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Re: Excitied

We want pictures.
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Old 10-28-2017, 09:23 AM   #6
geezer#99
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Re: Excitied

Quote:
Originally Posted by Marcus4800 View Post
Machine shop told me to use 10w-40... Should I use something different....
Depends on how much was rebuilt.
If new cam, lifters were installed then you need oil with ZZDP in it.
Like this.
https://www.summitracing.com/int/par...1487/overview/

Or this.
https://lucasoil.com/products/engine...e-break-in-oil
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Old 10-28-2017, 11:11 AM   #7
LostMy65
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Re: Excitied

I think this would be a good time to get recommendations for a good brand oil.
Also, be sure it doesn't run too rich for the break in.
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Old 10-28-2017, 04:53 PM   #8
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Re: Excitied

providing cam lube has been used you can use 10w40 as long as it has no anti friction coating ability. cam lube to protect the lobes, no coating type oils to allow rings to bed in.
remember to replace the oil filter when you change oil after break in.
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