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| Oil pressure https://www.smwebhead.com/phpBB3/viewtopic.php?f=11&t=23867 |
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| Author: | Kevrock31 [ Tue Jul 30, 2024 3:41 pm ] |
| Post subject: | Oil pressure |
6.2 merc engines, oil pressure on plane runs close to 60psi. At idle port drops to 0 and light comes on but no alarm. Give it a little throttle and goes up. Starboard drops to 10psi no light. Already changed oil and filters and senders. Any ideas?? |
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| Author: | LouC [ Fri Aug 02, 2024 7:59 pm ] |
| Post subject: | Re: Oil pressure |
What oil are you using? In those I’d use the Merc/Quicksilver syn blend 25/40 or better yet 25/50. I would not use a 5/ or 10/ anything! The lowest that my old 4.3 V6 gets to after running on plane is about 25 psi at idle; after idling did a few min it will rise to about 40. I use the Merc syn blend 25/50. On plane it’s at about 60. This is an original short block from 1988 that got a top end overhaul about 7 years ago. |
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| Author: | Kevrock31 [ Sat Aug 03, 2024 6:16 am ] |
| Post subject: | Re: Oil pressure |
I use quicksilver 25-40 Going to replace pressure sensor first, is that doesn't work I'll try thicker oil |
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