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what would chip the turbine???

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Old 06-18-03, 09:55 AM
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what would chip the turbine???

well i went and removed my turbo and manifold and when i pulled the turbo off i almost cryed..there are 2 fins that are almost complately gone and a couple that are chipped, im figureing one of 2 things could have happend

1) my car throw a apex seal (but i belive i hear the right amount of "swosshes" when i crannk the car by hand)

2) a big nasty hunk of carbon came loose ( the car has sat for about 14 months)

if it is a seal im not sure what im gonna do i dont have the money to get it rebiuld i might do it myself, but how are would it be??


--joe
Old 06-18-03, 10:00 AM
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Does your car burn any oil? It could have been a side or a corner seal. Is it the hot side that you saw the chips? If it is, something got chewed up... most likely a seal of some sort. do a compression test.

A big hunk of carbon? Well it doesnt really take much for something to bust when something's spinning at 100,000RPM +
Old 06-18-03, 10:51 AM
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my car really hasnt run for about 4 months but it did not burn any oil, but im gonna do a comperssion test today so i will see............... any one else??

--joe
Old 06-18-03, 11:07 AM
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So the car will not start, or you haven't tried to start it in 4 months?

I'm betting all my peanuts on a chewed apex/corner/side seal.
Old 06-18-03, 11:27 AM
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...ever cleaned up the castings, like the manifolds, ports and whatnot?? if not, coulda been a bit of casting flash. *shrug*
Old 06-18-03, 03:04 PM
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my car tossed an apex seal, I only had a tiny chip in my turbo. I could probably even still use it, but I decided to err on the side of safety and buy a new one instead.

for big chunks to be missing, something major would have to happen, I'd think.
Old 06-18-03, 04:13 PM
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Learned alot | Alot to go

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his car starts, just doesnt hold and idle but we think thats due to a vac leak. I saw the pictures of the turbo, the hot side is destoryed
Old 06-18-03, 07:28 PM
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Originally posted by Terrh
my car tossed an apex seal, I only had a tiny chip in my turbo. I could probably even still use it, but I decided to err on the side of safety and buy a new one instead.

for big chunks to be missing, something major would have to happen, I'd think.
Mine ate 3 seals and my turbo is fine. It boosts great. The only problem is the oil seals leak a bit of oil (stops once the turbo warms up).
Old 06-19-03, 12:24 PM
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This same thing happened to my turbo but it was not a problem with the engine at all. Im giving hope to your engine and pointing the shame to a common problem with s4 turbine housings.

My first turbo blew when the turbine manifold cracked sooo badly that a large piece chunked off and slammed the turbine wheel. So check your turbine housing for any pieces missing. You'll have to pull the cartridge off the housing.
Old 06-19-03, 12:28 PM
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https://www.rx7club.com/forum/attach...?postid=437370

What my turbine looked like. notice the blue shaft.
Old 06-26-03, 06:40 AM
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How did you make out with the turbo??
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