Major problem with my BANKS turbo...need help! - Diesel Forum

nostroke · 03-16-2005, 06:44 PM

Ok I put the old style banks sidewinder on my truck and now my truck runs worse with half the power it did before??? The injector pump is turned all the way up and my pyro only reads like 450 degrees with it floored at 70 mph. I only have a downpipe on it at the moment is that the cause or do I need to advance my pump timing a little or what???

HELP!
Daniel

nostroke · 03-16-2005, 07:41 PM

Come on guys I know one of yall can help come on!!!! Im desperate....

Daniel

lww · 03-16-2005, 07:45 PM

Are you having any other symptoms, such as black smoke?
When you mention having the pump turned all the way up, did you in fact turn the set screw "inwards", and if so as far as it can go? Just so you know, if the screw is in absolutely all the way, the plungers can jam during full load operation and lead to greif, as well there is generally no need to go that far for significan gains but reasonable engine life.
Otherwise, I'd be checking throttle travel (have someone push the cab pedal fully down, and check the fuel pump linkage to ensure its gone all the way. Sound like your not getting fuel if you don't have smoke, and the EGT's are so low.
Lorne

nostroke · 03-16-2005, 08:04 PM

No it will black smoke and I can drive down the highway but there is no increase in power...I can hear the turbo spool up and the whistle when I clutch to shift...just no extra power and it won't start now that the turbo is on there....itll turn over and over but won't start. if I pull start it it will but it idles kinda rough...yea the screw in inwards...i didn't have it all the way up so I tried it like that but then it had no power so I juiced it all the way up and still no power...can't figure it out...but it is my daily driver and its killing me not having a ride...Im seriously contemplating taking it off and putting back to original where it ran perfect.

D

JCDiesel89 · 03-16-2005, 08:16 PM

Only thing I can tell you is to call Banks themselves if you havent already, now you got me having second thoughts about buying a sidewinder kit for my truck...

d9d · 03-16-2005, 08:18 PM

might sound bizarre, but it sounds like you plumbed the air-half of the turbo backwards. The intake to the compressor is on the end of the turbo, around the shaft. The outlet, which goes to the intake-manifold of the engine, is the 'arm' coming off the edge of the compressor.

it's either that, or I'd say the turbo is seized; but you say you can hear it spooling.

did you leave a rag somewhere in the air-portion of the plumbing?

did the air-cleaner get clogged ?

if you've got lots of black smoke, with no power, then you've got an air problem.

rancherman84 · 03-16-2005, 08:27 PM

like d9d said if you got lots of black that means to much fuel and not enough air.
can you spin the impeller of the turbo by hand?
if so is it loose,by loose i mean able to touch the side of the housing with the impeller,it should have some free play but not much.

nostroke · 03-16-2005, 08:41 PM

Ok the turbo has 450,000 miles on it but was rebuilt just 20,000 miles...the guy had papers and everything...it has a new bearing shaft and intake and exhaust fins. It spins freely with very little end play and doesn't touch the outside of the housing. Like I said I tried it with the pump set a little higher than stock and now at max and no differance really. Just a hair...but it still seemed to have WAY more power before...As for rags no...I didn't leave any rags anywhere...there are no exhaust leaks or boost tube leaks. It also has a new K&N filter. I can't figure it out but I am not impressed and I am considering just taking the turbo off and selling the truck and the turbo. I have dumped alot of money into it lately. New injector pump, new glow plugs, new glow plug controller, new starter, new alternator, new lift pump, new batteries, new voltage regulator, new starter relay, rebuilt tranny, new clutch, new carrier bearing, and u-joints. AHHH I am lost...help me!!!

Daniel

Mike Lewis · 03-16-2005, 09:37 PM

Been there. Too much money in my truck to sell it.

Gonna keep it 10 more years... unless someone offers what I'd like out of it. :-)

Mike

Gruss · 03-16-2005, 10:08 PM

Ok lets work this thru. This is the old style with the large aluminum airbox correct? Wastgate or non wastgated? Are you making any boost? Is the gasket between the lid and airbox intact? Is the high pressure boost hose(approx 2" hose from turbo to airbox) intact and hose clamps tight? is the airbox bolt tight to the intake manifold? Just a few ideas off the top of my head. Russ

beretzs · 03-16-2005, 10:21 PM

Dan. what kind of Boost numbers are you making? If you getting black smoke, ALOT of black smoke and the turbo is not clearing it up, you have something restricting airflow to the turbo. The turbo IS not going to make your truck have less power ever. If the turbo is jacked your truck should still run as good as it did before you put it on. I would look over everything, make sure there is nothing restricting the airflow anywhere!! If your turbo is spinning freely, and the exhaust is not restricted, and the inlet part of the intake is free and clear of any obstructions, there is NO physical way your turbo CANNOT make power, something is amiss. Check your fuel lines also. Did you intall a new return line set during the intstall? If not, you may have knocked one of the older lines off and you may not be getting fuel to all your injectors. Look everything over really close. I am sure it is something very simple and easily fixed, don't worry, you will figure it out. I know all about having your daily driver down. Scotty

Huff · 03-17-2005, 04:39 AM

Nothing else to add here but once we know how much boost your getting (if any) we can help you with this.

aaklingler · 03-17-2005, 01:30 PM

You may want to try pulling the air intake off before the turbo, very temporarily(sp).

jdc753 · 03-17-2005, 02:33 PM

Definetly need to find out what kinda boost numbers you are seeing. To me it sounds similar symptoms to a siezed turbo. We had a Cat 320L excavator that had a siezed impellor shaft from sitting a long time and had very similar symptoms, you could crank the rpms and all you would get is Black smoke (from the restriction the turbo made in the airflow by not moving) and No power at all, even when set on 10 it could barely move out of its own way never mind even dig into a soft pile of loom. Get us some boost numbers, and follow the air flow from wherever it enters to the turbo and then to the intake, look for anything restricting its flow, and check the impellor shaft again on the truck, who knows maybe it could have gotten siezed after installing it. Black smoke indicates Too much fuel for how much air the motor is getting, sounds like a combination of overfueling from the pump, but that wouldn't kill your power like a big air restriction would. Good luck with tracking down the bug causing your problems, and stick to it sounds like you got a good truck there, don't wanna scrap the whole thing cause of this little problem, and just think, when you get it all figured out it will feel a million times better

agnem · 03-17-2005, 02:41 PM

Main thing is to keep a cool head, and take your time and be scientific about this. I'd say start by removing the Banks air box, and just starting the truck. At idle, the air coming out of the turbo should blow your hat off. That hose between the turbo and air box is very difficult to work with, and it sounds to me like you may have somehow kinked it or otherwise pinched it.