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Wednesday, August 07, 2019

Oil Flow Diagram - RB26dett - Nissan Skyline Engine

RB26 oil flow diagram from importavehicle.com

Here it is, in all it's glory.  The OEM RB26 oil flow diagram - in Japanese.  Oil, and oiling in the RB26 has a bit of a bad rep, some true, some false.

Oil flow diagram for RB26 Rb26dett translated by Garrett


JDM cars for Sale in the USA. importavehicle.com


True or False?   The oil pump on an RB series engine will explode if you look at it funny?

FALSE

Like any vehicle, any mechanical device, there are some flaws with the RB oil pumps. If a car was running for 25 to 27 years with the original engine, original oil pump, and it breaks in a week once a new owner has it, it might not be the car.  There are people out there that believe the pumps are made from glass, which they are not.  For the hundreds of thousands of RB powered cars in the world, there are relatively few failures, but they do fail.  Generally if they fail it is due to over revving, or shocking the oil pump.  The oil pump is driven directly from the front of the crankshaft. It has to suck and push oil, something pumps don't like to do.  At 8k rpm stock, the rev limiter protects the engine on the way up, but not on the way down. Right hand drive car in a left hand drive world.  https://www.gtrusablog.com/2018/01/oil-pumps-on-rb-series-engine-true-or.html


RB Oiling : Oil Pumps : Oil Restrictors : Oil Pan Modifications
Oil Change and Oil Filter for a Nissan Skyline GT-R
RB26dett Oil Pump Gears Going Oval: Oil Pump Failures


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Buy-R.com for Nissan Skyline GT-R and GT-R parts.




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