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240 15G Idle ring.

smoothdurban

smoothdurban

I do my own stunts
Joined
Jan 4, 2013
Location
Kemble Ontario
Hey.

I just finished a 15G swap on my B230FT and I noticed a ringing type sound and idle.

The turbo is used, I bought it from a member here a few months back. I know on the hot side of the turbo there is a cup or sorts that separates the turbine wheel from the cartridge. Is it possible this is rattling around. Perhaps I didn`t clamp the hot side housing to the cartridge sufficiently when I reclocked it.

when I blip the throttle it goes away and returns when the engine speed returns to idle.
 
Are you certain where the sound is coming from precisely? Try using a length of hose or tubing up to your ear and try to find precisely where the noise is loudest.
Dave
 
dbarton said:
Are you certain where the sound is coming from precisely? Try using a length of hose or tubing up to your ear and try to find precisely where the noise is loudest.
Dave
Click to expand...

I`ll check with a stethoscope next time I run it, it seems pretty certain its coming from the turbo.

iHateVolvoPeople said:
Sounds like you got a junk turbo like the past 3 turbos I?ve bought off of TB.
Click to expand...

Yikes! Last 3? If that`s the case any recommendations on where to buy a good cartridge?
 
I went to a jy and got my 16t. You can examine the shaft play before you pull it! And usually a decent amount cheaper too
 
Mbeas96 said:
I went to a jy and got my 16t. You can examine the shaft play before you pull it! And usually a decent amount cheaper too
Click to expand...

Thats always an option but I am ok with buying something new (and paying for it) I just dont trust any of the ebay $168 cartridge specials.

I am about a 2.5 hour drive from Cherry Turbos in St. Thomas so I dropped them a line what I am looking for. I am curious if there are an other reputable online sources.
 
Yeah I wouldn't either for 168 bucks lol. There was a thread on here not long ago that someone had bought just that from ebay and it was spewing oil everywhere within 500 miles
 
I also rebuilt a blown 15g from here with a cheap $30 kit (huge mistake presumably) and then paid another $60 to have it ‘balanced’ and when i went to pick up the turbo from the balance shop it was still disassembled. It had small divets: one one the compressor wheel and one on the turbine wheel. Guy at the shop just told me to ‘line them up by eye and tighten it up’ :roll:

In hindsight, you don’t need to balance a factory turbo that you rebuilt since the compressor wheel and turbine wheel (with shaft) are balanced separately from the factory. That’s what i was told at least. I should’ve just bought a better rebuild kit and rebuilt it and let it be. My $30 rebuild lasted 1500 miles.

Also, people should stop selling junk turbos on here.
 
15g

I've got a 15g that makes a ringing sound on the cup with I spin the exhaust wheel. I only noticed it when I took the housing off to port it. I'm hoping it stops when I reassemble it.
 
Did you take it apart? A compressor or turbine fin brushing on their respective housing might make the noise you're describing.
 
I've bought my parts for a rebuild from Gpop shop. Wasn't a cheap kit but wasn't over $100 either. Another choice they provide is a chra for exchange.
 
Sounds like the wheel is scraping? I would take the intake hose off and see / feel / hear if it's scraping.
It could be that the hot and cold side are not perfectly aligned when you tightened the clamp.
 
A rebuild kit for 100 bucks and a whole chra assembly for 100 bucks is a different story lol

I'd go for the kit and do it yourself rather than buying a cheap center cartridge
 
Fa182 said:
Sounds like the wheel is scraping? I would take the intake hose off and see / feel / hear if it's scraping.
It could be that the hot and cold side are not perfectly aligned when you tightened the clamp.
Click to expand...

I checked the compressor side and it is not scraping and spins freely.

I will pull the turbo and leave the turbine housing attached to the manifold and hopefully some more will be revealed.
 
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