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badlands68

  • Karma: +0/-0
Best break-in method and oil for a 455?
« on: April 26, 2018, 07:38:38 PM »
Looking for some advice on your guys methods that are more experienced then me. I bought this motor already built, but has never been fired, and want to make sure it's done right.

Sent from my XT1650 using SoCal Jet Boats mobile app

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mash on it

  • Karma: +29/-0
Re: Best break-in method and oil for a 455?
« Reply #1 on: April 27, 2018, 11:15:33 AM »
Flat tappet cam?
 30 wt with zddp additive.
Static time the dizzy.
Use a known good carb.
Good/fresh fuel supply.
Water supply with a valve close to the boat.
Vary rpm ,2000 to 2500 for 30 minutes. LET ENGINE COOL before it gets fired up again, preferably overnight.
 Change break in oil to Delo 400, 15W40, with additive.

Go boating.

Dan'l
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CJ/RR 212...under construction  "Pistol Annie"

badlands68

  • Karma: +0/-0
Re: Best break-in method and oil for a 455?
« Reply #2 on: April 27, 2018, 12:05:47 PM »
Yeah it's flat tappet. Thank you brother, I appreciate it!

Sent from my XT1650 using SoCal Jet Boats mobile app

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