12-01-2018, 04:57 PM | #1 |
Join Date: Sep 2018
Posts: 173
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Oil flowback on hawk/magician engine?
I wanted to make a dedicated thread for this. Can someone explain the oil flowback on the RPS engine? I know there is a o-ring between the cylinder and head that I guess keeps the oil pumped up to the sprayers above the valve adjusters from going in to the piston by the head gasket but I never seen the rest of the system.
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12-01-2018, 08:42 PM | #2 |
Join Date: Jan 2012
Location: ChCh , NZ
Posts: 2,265
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flow back !!!... it returns to the crank case by running
down the push rod holes or cam chain tunnel.. not sure if that was what you were asking or not..? ..
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12-01-2018, 09:37 PM | #3 |
Join Date: Jun 2016
Location: Hell
Posts: 2,408
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Pull the engine down and all that knowledge will reveal it self.
Kinda basic and yeah loads of space to let the oil flow down the push rod area. the O ring you mentioned it the oil passage on the pressure side to feed the oil to the top end. |
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12-03-2018, 03:24 PM | #5 |
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Here ya go.
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12-11-2018, 02:07 PM | #6 |
Join Date: Sep 2018
Posts: 173
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I took these two weekends ago. Yeah I see how it pumps through this cast vein up to the adjuster sprayers and gravity feeds back through the pushrod holes on the other side. I eliminated it as a cause of oil getting in the combustion and coming out the exhaust by checking it and putting a new seal in. I'm in the process of getting a new cylinder now since I already put a new head and head-gasket on..
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12-11-2018, 08:23 PM | #7 | |
Join Date: Jun 2016
Location: Hell
Posts: 2,408
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Quote:
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12-11-2018, 10:32 PM | #8 |
Join Date: Jul 2018
Location: NEPA
Posts: 273
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Ummm, the connecting rod is "Blue" like it over heated.
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12-11-2018, 11:29 PM | #9 |
Join Date: Jun 2016
Location: Hell
Posts: 2,408
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I think you will find that is from forging the con rod
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12-11-2018, 11:52 PM | #10 |
Join Date: Jul 2018
Location: NEPA
Posts: 273
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Then the whole connecting rod will be blue not just the center, that got hot. How lean was the mixture?
It's shot peaned or mass finnished after machineing, no color. This is different.
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2018 Hawk P&P Decked .040 off the head. 17/43 D.I.D. 428, NGK Iridium plug, DeCat, Wrapped pipe, Custom S.S. Muffler core, Nibbi PE30 115/35, L.E.D. Lights, Digital Cluster, USB port, Cutting Bord skid plate, Oil cooler w/ custom CRF oil filter inline, 5Wt fork oil, Rear Shock, CNC Back Rack, 30mm FAT bars, Bark Busters, ProGrips, Adjustable levers, Shinko 700’s lots of Loctite! |
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12-12-2018, 01:14 AM | #11 |
Join Date: Nov 2016
Location: robertsdale alabama usa
Posts: 1,007
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if its getting oil in the combustion chamber it will smoke like a freight train. id check specs on the barrel and piston and rings befor ordering new ones to make sure this is a problem.
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