Hydraulic roller break in/oil change
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Hydraulic roller break in/oil change

  1. #1
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    Default Hydraulic roller break in/oil change

    I know for flat tappet you break the cam in and immediately change the oil. What do you guys do for hydraulic roller?

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    Mobil 1 turbo diesel synthetic 5w-40....thoughts. I was looking for a good 10-40 synthetic but this stuff seems good.

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    Senior Member MBMoseBilt's Avatar
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    I soak lifters in 50/50 mix of STP and 20-50 VR1 prior to install in block. Soak overnight. No break in needed for run time other than ring seating.


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    steelcomp was here
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    Roller lifters don't need any special break in procedure. I would not use a diesel oil of any kind in a gasoline engine. Diesel oils are made for diesels. I also would not use 20-50 in anything these days, especially hyd. lifters. Max weight of 10-40 is recommended. For break in, use a good quality break in oil. That's what it's made for.
    If God is your co-pilot, change seats!
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    I soaked everything in oil for a few days, I used Mobil 1 15-50 and Lucas break in additive. Ran it to seat the rings and now I'm changing oil, going to switch to 10w40 synthetic. Was just curious on what most of you guys do after the initial start up and tune, and little run time. Do any of you guys run Lucas oil stabilizer in your boat engines? I plan to because my boat sits for months without being started....unless anybody thinks that's a really bad idea.

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    Senior Member MBMoseBilt's Avatar
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    My last motor I used Lucas. I don't really know if it helped or not. Now I use a synthetic blend from Kendall.


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    Quote Originally Posted by nos1967 View Post
    I soaked everything in oil for a few days, I used Mobil 1 15-50 and Lucas break in additive. Ran it to seat the rings and now I'm changing oil, going to switch to 10w40 synthetic. Was just curious on what most of you guys do after the initial start up and tune, and little run time. Do any of you guys run Lucas oil stabilizer in your boat engines? I plan to because my boat sits for months without being started....unless anybody thinks that's a really bad idea.
    Are your rings seated in?
    Often times the synthetic oil doesn't allow the rings to seat in, and the reason many people prefer to use ordinary oil for their break in oil before switching to synthetic oil.IMO

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    Totally forgot to mention that this engine was already broken in with a flat tappet cam and 20w-50 vr1 conventional. Broke in the cam properly then changed the heads and switched to full roller. So the bottom end was broken in that way, now ran for about an hour for running and one lake pass with synthetic.

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    Senior Member MBMoseBilt's Avatar
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    Quote Originally Posted by nos1967 View Post
    Totally forgot to mention that this engine was already broken in with a flat tappet cam and 20w-50 vr1 conventional. Broke in the cam properly then changed the heads and switched to full roller. So the bottom end was broken in that way, now ran for about an hour for running and one lake pass with synthetic.
    Then don't worry about it. Just run the chit out of it.


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    Mobil 1 High Mileage oil or Driven HR 10W40 Conventional or Synthetic.
    Chris Straub
    Straub Technologies

    3HP is an A$$ Whooping!!! JW

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    Thank you, any thoughts on Lucas oil stabilizer?

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    Found 10w-40 Mobil 1 high mileage at Walmart for 23$ for 5 quarts, oil
    pressure was around 50psi warm idle and 70-80psi while cruising. After a good wide open run the psi dropped to 30 at idle for a while but came back up to 50psi once it cooled down a little. I'm going to try running 8 quarts instead of 10, but I'm not to worried as all my boats have had a lower idle psi after a hard run.

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    Senior Member Jetdream'n's Avatar
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    With my Hyd roller, This is the route I went after my break in and dyno time. Any thoughts?
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