blown turbo damage help

hey guys when a turbo goes pop on a oem twin 1jz what is the potential damage? foreign objects sucked into the engine hence full rebuild etc??

Nope. If the turbine fails it gets fired into the exhaust, nothing will be ingested. What do you mean "goes pop"?

If it actually went in then it could have damaged the piston, maybe the valves as well. It can destroy the seals, break off the fins in the turbo, scratch, damage and weaken the pistons. If you want to check then you're going to have the take the pistons out.

You need to be a little more specific with what's happened. Has something actually gotten sucked into the engine? Is it just a turbo seal? What side of the turbo is the damage?

It cant get into the engine.

i was looking at a soarer for breaking and due to lack of paerwork to drive it home no mot paperwork for tax to drive it for a while i left it amongst other reasons and the lad text me saying he went for a quick 2min drive hit the boost and he said the turbo has gone bang and there was loads of black smoke so i was just generally wondering what sort of damage could be done as im still wanting it for parts to complete my 1jz conversion

Black smoke isnt oil smoke, its fuel smoke. Which is more puzzling. When a turbo 'goes' the turbine either breaks up or completely seperates from the shaft. Worst case you will get engine oil in the exhaust, blue smoke, and lots of it.

I have recently been told of a fault where black smoke was coming out the back and it turned out to be a split turbo pipe on the exhaust side. Strange I know. I have also been under the impression that black smoke is to do with fuel.

I can imagine what would happen is that a split or damaged turbo on the exhaust side would allow exhaust gases to escape therefore the compressor won't create enough pressure etc etc and ultimately over fuelling (run rich?) and causing the smoke.

Could have blown a seal or a gasket which can be replaced or could have broken the splines in the turbo and you will need a new turbo for that. Might as well check the induction and exhaust systems to be sure. You'll find out what's damaged when you look at it really c

I reckon you have absolutely no idea what youre talking about.

i reckon you have absolutely no idea what youre talking about.

I reckon you have absolutely no idea what youre talking about.

Didn't realise I was in the presence of a master mechanic!!

Maybe not, but I do have a lot of experience with 1JZs

I have recently been told of a fault where black smoke was coming out the back and it turned out to be a split turbo pipe on the exhaust side. Strange I know. I have also been under the impression that black smoke is to do with fuel.

 

I can imagine what would happen is that a split or damaged turbo on the exhaust side would allow exhaust gases to escape therefore the compressor won't create enough pressure etc etc and ultimately over fuelling (run rich?) and causing the smoke.

Care to explain what that means? Split turbo pipe on the exhaust side? And as the engine has a MAP sensor, fuel is related to manifold pressure, so it wont over fuel if the boost is low.

Could have blown a seal or a gasket which can be replaced or could have broken the splines in the turbo and you will need a new turbo for that. Might as well check the induction and exhaust systems to be sure. You'll find out what's damaged when you look at it really c

Blown seal, yes, turbine oil seal. Broken the splines? On what, where?

It cant get into the engine.

Depends which end of the turbine lets go. If it's in the exhaust housing then yes, it'll go straight down the pipe. If it's the intake housing, there's an intercooler, then your intake manifold. If particles can pass through the intercooler, it's not long before they're into the motor

Maybe not, but I do have a lot of experience with 1JZs

 

 

 

Care to explain what that means? Split turbo pipe on the exhaust side? And as the engine has a MAP sensor, fuel is related to manifold pressure, so it wont over fuel if the boost is low.

 

 

 

Blown seal, yes, turbine oil seal. Broken the splines? On what, where?

I was making more of a speculation with the second paragraph to explain what I said in the first paragraph. I obviously should have made a little clearer what I was on about. Basically I was told of a recent fault where black smoke was coming out the back of the vehicle and instead of being as commonly suspected fuel related it turned out to be caused by a split in one of the pipes leading from the turbo. I don't understand how it's possible but replacing the pipe seemed to fix the problem. I'm not saying what I said is 100% correct, I am very open to being told if & why I am wrong. But ultimately I wanted to show that just because there is black smoke doesn't instantly mean it's fuel related.

Borken splines:

The ones of the compressor of the turbo. He said about there being a foreign body getting in didn't he? If something gets in there then as you know it can potentially damage the fins/splines or whatever they are actually called, I can't remember if there is a proper name.

Didn't realise I was in the presence of a master mechanic!!

Well you are now, and you don't know what you are talking about

Well you are now, and you don't know what you are talking about

I reckon you have absolutely no idea what youre talking about.

Agreed!

Well you are now, and you don't know what you are talking about

Priceless.

Well you are now, and you don't know what you are talking about

Why did I just picture Brick Top from 'Snatch' when I read this?

Well you are now, and you don't know what you are talking about

Swampy likes this

oh no! Seeing as the "master mechanic" won't tell me why I am wrong then I'll just put it down to magic that stopped black smoke coming out of the exhaust once a split pipe was replaced. I hope all you middle aged, mid life crisis men can forgive me!

Middle aged? Im 28. Seriously though mate, its just abit of banter, its just the nature of the forum. If you take it personal, you wont last very long.