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Oil pressure 8550

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Dale View Drop Down
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Joined: 11 Sep 2009
Location: Ontario
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    Posted: 11 Jun 2012 at 4:07pm
Anyone know what range the oil pressure (in lbs) should be for a 8550?
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Unit3 View Drop Down
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Joined: 17 Oct 2009
Location: NC Iowa
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Unit3 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jun 2012 at 5:56pm
No I don't, but I do know that it is a GREAT IDEA to run the 8550 or 4W305 with the valve covers off in the shop so you can see 1st hand how much oil is coming out of the rocker arms. This run off oil is the only oil the push rods, adjusting screws, and cam lobs will see. We learned the hard way that oil pressure DOES NOT mean oil volume. 
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CAL(KS) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CAL(KS) Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jun 2012 at 6:08pm
both 8550's dad has run about 45lbs all the time.  my HD16 which basically has an early version of the engine design  is supposed to run 30-50 lbs
Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
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