Haybusa Parts and Service Member Support

Author Topic: Oil problem  (Read 2152 times)

Offline Dax Man

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Oil problem
« on: April 14, 2020, 03:25:00 AM »
Hello folks
I have a busa turbo fitted in my kit car and was wondering if I could possibly find some info from the more advanced motor bike brains!
The problem I have is there is no leak on the engine or turbo but after a hard run out (6-7 hours) it uses about a quart pint of oil !!
I also have been told that I leave black smoke from time to time when accelerating hard.
Any thoughts would be grateful, Cheers :tu:

Offline Thomas

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Re: Oil problem
« Reply #1 on: April 14, 2020, 05:18:11 AM »
If it's the turbo than it could be sub par oil drain, too much oil (probably a restrictor could hep), or air filter being too restrictive. Or the turbo is worn out and seals are gone.

If it's the engine it could valve seals (unlikely), worn out rings / cyls. Or it could be shitty oil.
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Offline Dax Man

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Re: Oil problem
« Reply #2 on: April 15, 2020, 03:15:33 AM »
Cheers for that!

 my thoughts now that I have looked into it, the oil drain from the bottom is very low and therefore the oil in the pan is restricting it from flowing from the turbo.
The thing is if I don't drive like a looney there is no problem  :twisted:

Offline turbojonn

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Re: Oil problem
« Reply #3 on: April 16, 2020, 10:22:14 PM »
 Is the oil usage issue new? If not, maybe it needs a scavenging pump.
RCC turbos rock!!! Rcc- Ultra plenum, case saver, Carillo rods, Wossner pistons, APE springs/tool steel shift shafts, Ferrara valves, ARP studs, lightened and balanced crank, Boostbysmith ecu editor, AMS 1000 with CO2, 420 hp. Mac arm 0-6 over, BST carbon fiber rims. Someday I'm goin' fast!

Offline Dax Man

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Re: Oil problem
« Reply #4 on: April 17, 2020, 03:49:28 AM »
No, its always been a problem, I am wondering if its because the oil cant pass through the drain hose freely as it is backing up against the oil in the sump. It has a billet alloy flat sump you see.

Offline Oz Booster

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Re: Oil problem
« Reply #5 on: April 17, 2020, 03:53:03 PM »
Thats the usual case with a motorcycle , turbo position is not flexable enough to have the drain gravity to above the oil , it works in most cases, those that dont use a scavenge pump
what setup is on the kit car ?

Black smoke is fuel , maybe you need to check the tuneup first, you could be washing the bores and loosing some oil that way 
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Offline Dax Man

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Re: Oil problem
« Reply #6 on: April 18, 2020, 04:49:56 AM »
Scavenge pump? how big is this have you any pics you could show me?
Cheers.

Offline turbojonn

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Re: Oil problem
« Reply #7 on: April 18, 2020, 12:06:54 PM »
Hi Dax,

I have a tough time posting pics here so all I can do is pot this RCC pump searchable description for you.

RCC Mechanical Oil Scavenge Pump Suzuki Hayabusa (99-20)

RCC makes the best stuff on the market and has unbeatable customer service.
RCC turbos rock!!! Rcc- Ultra plenum, case saver, Carillo rods, Wossner pistons, APE springs/tool steel shift shafts, Ferrara valves, ARP studs, lightened and balanced crank, Boostbysmith ecu editor, AMS 1000 with CO2, 420 hp. Mac arm 0-6 over, BST carbon fiber rims. Someday I'm goin' fast!

Offline Dax Man

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Re: Oil problem
« Reply #8 on: April 19, 2020, 11:32:23 AM »
Hi John

I see Big CC do a very neat mechanical pump so I will enquire there !


Regards