new turbo......problem!

[minirally]

hi guys, here my problem if someone want to help me!

i just put a new k27 turbo........when i start de car,it began to smoke a little, no worry, i think its the old oil in the muffler burning....but after 4 to 5 minutes, so much smoke, i lost all the around house!!! amazing how much smoke!!!
someone have an idea?

thanks,
andré

[slyguy]

Is the turbo brand new or rebuilt? KKK? Did you prime the turbo and run oil through the feed line before starting the engine? Was there anything wrong with the old turbo? Ive had the smoking like st helens turbo on a couple of occasions and each time it was seal gone bad, one K27HF due to coked oil particles in my system and one K27 due to heat. Both required rebuild.

[mark houghton]

Originally Posted by slyguy

Ive had the smoking like st helens turbo on a couple of occasions....

Been there; I mean, when St Helens blew her top. I was about a hundred miles downwind....not a pretty sight for several days. Sorry, off topic....
A new turbo should not exhibit the characteristics described. Definitely would indicate bad seals. Or, perhaps, did someone mess with the check-ball restrictor in the feed line?

[minirally]

the problem is from last year on the race track!! blow lot of smoke...so much,they stop the session!! open the turbo at the shop,result,blow turbo, now a new-rebuild one....and still the same problem????

can the check ball broken? any idea....i,m confuse about that.

[Sam Matthews]

look at post turbo blow out hope this helps

[minirally]

thanks for the tread,i,ll check all that!

[minirally]

finally, it is the shaft from the pump broken! thanks all.

[minirally]

anyone has a scavenging pupm for sell..or where to buy one? thanks

[JFairman]

What part of the shaft broke?
You can fix it if the steel pin that is 90* to the camshaft and driven by the 2 allen heads that hold the air pump pulley onto the end of the camshaft wore out and broke.

That steel pin runs dry where it is driven by the top of the allen head bolts and eventually wears through and breaks. The tops of the allen heads get worn down too and a little 60% moly paste or molybdenum grease would help there.

When I replaced my cams, rocker arms and shafts a few years ago I noticed mine is worn almost halfway through after 125,000 miles.
I'll have to address that soon before it wears out and breaks off.

Cole recently noticed his is worn too and I think he posted a way or suggestion to replace that pin.

Moly paste is a good lubricant for something like this since it is 60% molybdenum disufide which adheres to ferrous metale like steel and iron and won't fling off.
Moly grease only has around 5-7% molybdenum disulfide in it.

[minirally]

i remove the broken pin...and put a new one! happy,the seal of the turbo is ok!

love this forum,and the people here!