Smokey Bender turbo - need a consensus please

[sledracer]

Sorry for another thread. Ive searched and read everyone on here I can and heres where Im at. Would like some experienced advice before I pull the trigger.

sled 2003 rx1 - 2400km. Runs great, burns no oil before turbo install.

Previously enjoyed Bender stage 2 kit - comes with new oil return pump. Its the black one.

Kit is was installed, oil pump line primed and purged. Pump confirmed great flow on bench and installed confirmed on sled.

Oil feed line had a 500 Mikuni hex jet to restrict flow (0.078" dia).

Supplied Bender crankcase filter is unkinked and has no restriction (breathes well)

Upon start up everything appears good. Once the turbo heats up a significant amount of smoke blows out the exhaust. This was initially without the intercooler and charge tube from chaincase not installed. After running the sled off and on a few different times there is evidence of oil leaving the compressor air intake. I would assume some is blowing down under tunnel charge tube but I have not pulled it off.

I removed the 500 hex jet and put in restrictor with 0.32" dia orifice. Problem still exists. New oil escapes the compressor intake so I dont think this is just old oil remaining in the exhaust silencer. Droplets of oil are being sprayed out of the exhaust opening as well.

I dont want to taint anyones opinion so I will keep mine to myself for a bit. What do you think the fix is?


Thanx in advance

 

[sledracer]

One other thing. I took the aux. oil pump T line off at the oil tank. I installed the original hose(the one that gets "T") and dumped the oil pump drain line direct into the top of the dipstick hole. This made no difference.

The turbo is also clocked so that the oil feed line is at 12 oclock and the discharge line is at 6.

 

[TT]

First of - make sure oilreturn pump is working. And you have no clogged oil return line.

Insert a 70-90 jet in the oilfeed line. It is fitted inside the small hose on the left side of the fuel tank. Make 100 % sure oil is only passing through the jet and not escaping out side of the jet. Remove threads on jet so you can fit it inside steal line. Install a hose clamp over the head of the jet.

Re-clock tbe center section of the turbo so oil drain is pointing straight down. You will have to bend both the feed and return line afterwards to make it fit.

Turbo center section re-clocked with oil drain pointing straight down

Feed line bent to fit under the heat shield

Also wire the oil pump so you can run it be turning the ignition key just to the first step without starting the engine. After turning the sled off. Turn the key back on to the first step for 5-6 seconds every time to take out the remaning oil pressure in the feed line / turbo. This will save you seals in the long run If not done - oil will find the easiest path - over time will be through the seals if oil pressure is not removed and turbo center section re-clocked with oil drain straight down.

If nothing of this works out - make sure you oil return pump is working. You can check this easy by installing a hose to the oil drain of the turbo and run it to a clear bottle. Install a hose to the oil return line and run it to the bottle. Poor some engine oil in the bottle. Start sled and rev it - if oil level is rising in the bottle you have a bad pump;-)

Hope you it works out for you

 

[sledracer]

Thanx for the reply TT.

The oil line had a jet in the feed line but it was about twice as big as it should be. I replaced it with one with an orifice size of 0.035" I wired the oil and fuel pump into the brown/white wire that is hot when the key is in the on position.

I just completed the install so I can confirm there are no kinked lines.

I am thinking that the turbo has had to much pressure since it was new. Im guessing that the seals have finally given up.

Unless I get some more new ideas I think its time to disassemble the turbo and see whats going on internally.

 

[sledracer]

No one can confirm nor deny my suspicions?

It doesnt look like Garrett will sell the parts to rebuild this guy so an exchange is the only option? Is this what everyone else has found?

Tyler

 

[sledracer]

If anyone cared. Got a new CHRA from Justin at Full Power. Problem seems to be solved. Hopefully in a few weeks it will be on the asphalt.

 

[Super Sled]

I'm glad it worked out dude. I know nothing about turbos, sorry. Summer can be tough on these sled forums. Not as many guys hitting these sites, so these types of niche issues can be tough to get help with. In Nov. - April I bet you'd have had dozens of guys chime in.

 

[rxrider]

Your restrictor may still be too big, try one with a diameter of 0.030-0.031"

I'm running a 0.0315" jet in my Garrett GT2860RS.