11 2 11 Why I Lost Boost Almost Melted A Piston...

[4g63junkie]

you need to get t bolt clamps for intercooler piping those regular clamps are junk the more you turn up the boost the easier they fall off

[CORVAIRWILD]

@4g63junkie I TOTALLY agree!!! I had just bot the Teeruk a couple days before, and those clamps are total JUNK! And my wife wacked the intercooler on a snow/ice bank, but I still get boost, so a big dent, no hole, luckily!

[666hondaracing]

this guy must have been really lonely and bored!!!!!



[CORVAIRWILD]

@666hondaracing It's a long trip accross the country!

[thebartender2008]

Those damn clamps...I have cold air intake on a lil honda and have to retighten once a month.

[6030diesel]

that much oil is usually caused by overspeeding the turbo. running it that long with no intake pipe on it, causes is to overspeed, partially wrecking the compressor seal making it blow a little bit of oil into the intake manifold. i had the same problem on my 6.2 i blew the hose off, and wrecked the compressor seal, it pukes oil into the intake, but not near enough to make the engine run away.

[91CTD]

You need some T-bolt clamps from silicone intakes.com

[jonesd5o]

you can stop it but you better hope your not going down the road when it goes cause you kinda wanna get it soon when it starts running away!

[wildcumminsman]

i have the same tool set and i love mine it also has a life time warranty

[rick73test1]

I would be very concerned about that oil in the intake tube. I've seen diesel engines run away by burning their own engine oil. You can't shut it down when that happens. ...until the engine blows.:(

I'd look into that ASAP.

[mjmcomputers]

@rick73test1 That oil in the intake is most likely from the turbo, worn bearings and seals causing the turbo to leak oil into the intake. If the side play in the turbo is not to bad then it's more of a nuisance than anything. Not really enough oil to cause problems.

[rick73test1]

@mjmcomputers

You're probably right, I could be over reacting a bit. It would still be worth the peace of mind to have the turbo looked at.

.

I once watched a locomotive engine run away from a blown turbo bearing/seal. Huge billowing smoke and flames from the exhaust stack. That beast was screaming...and no way to shut it down. When that thing grenaded, it REALLY grenaded! LOL.

[91CTD]

@mjmcomputers I think it's part of the PCV system too, I think powerstrokes do it as well

[jonesd5o]

@91CTD to my knowledge only diesel i have ever seen that pulled a vacuum on the crank case is the 6.7 Cummins and thsats only from 07-10 idk about the lil truck engines

[6030diesel]

@mjmcomputers just the blowby fumes man. dont worry about them.

[6030diesel]

@rick73test1 its from the CDR. its the crankcase fumes, which have a slight amount of oil vapour in them. built that way from factory 100% normal.

[tremer88]

you should get an intake like the cummins chevy guy so you can hear what its doing and it would sound sweet

[Graveltrucking]

A lot of oil going through the turbo that can't be good for it. Should have had Wayne yank that 6.5 piece of sh*t out and put a 12 valve into it.

[compactc9]

They put a very nice intercooler setup and everything, but cheaped out on the stupid clamps. FEH! I wanted a diesel, but this time around ended up with a V8 Durango, I think with my lead foot I might have blown up a diesel, so maybe its for the best.

[ramseyst42]

ya need constant torque clamps on those hoses...

[towrecker]

duct tape around the pipe then slip it in the hose and clamp it down , thats a redneck fix if she comes apart again till you get home to do it right 

[BOBKB3NZX]

Stainless Steel T-Bolt Clamps punch that into google I have seen wonderful results for these style clamps! gotta love having tools on-hand, otherwise you'd be up shit creek without a paddle!

[JakeDaSnakeFilms]

maybe you'll have a lil bit of go go now? :D

[OnusofStrife]

I think 1350 is the magic number. Also where your pyro is mounted affects the reading. If its post turbo don't go over 900. If it in the manifold right near a cylinder don't go over 1200.

[frosty9595]

The aluminium pistons in your engine melt around 1200 so as long as you don't stay at that temp for long periods of time your ok. my friend kept having clamps come apart so we put a tack weld on each hose clamp. But we used regular hose clamps instead of proper Turbo clamps..... so Mr corvair why don't you crank the boost up and crank the fuel up for some fun? I run 12psii of boost on my 01 grand prix with 145,000 miles on it!!!

[Veikra]

And the oil in your intake is probably that little valve on the air intake to the turbo. When it goes bad it spills oil in the turbo's inlet. I forgot what it's called, but just check it

[mjmcomputers]

@Veikra PCV valve, yea I had forgotten, 6.2 and 6.5 that was a common source of oil in the intake.

[Veikra]

worm clamps are very bad, especially since those pipe don't have a bead on them. You need t-bolt clamp like the ones you found at the junkyard. I have a place to order them for less that 3$ each, pm me for the link .

[Harleyman440]

put alittle blue loctite on them suckers..(clamps)

[smokey1858]

good luck CW be safe out there!

[Peppercatkeith]

they should have used lock tight on those clamps.

[CORVAIRWILD]

@Peppercatkeith They need to be the clamps I found in the junkyard in Phoenix. These break too easily. Evilbay time...

[mjmcomputers]

1200 is not good, but you probably didn't cook anything as long as you didn't go miles and miles at 1200. 1500 would have started cooking stuff.

[CORVAIRWILD]

@mjmcomputers Phew... I was wondering what the magic melting number was... It was just a few secs...

[mjmcomputers]

@CORVAIRWILD On a 6.5 I'd worry more about cracking the head or block than melting a piston. Not sure what that magic number is...

[6030diesel]

@CORVAIRWILD my friends bone stock 6.5 run 1200*F all day without an issue, right outta the factory. thats their safe max sustained EGT.