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Old 12-13-2010, 12:10 PM   #1
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Default Weird problem: white smoke only when downslope

I just bought a chinacharger and after installation, my exhaust is smoking whenever my car is doing boost at downslope.

I am suspecting the following:
- Turbo oil seal is gone (but if it is, why is it only happening on downslope?)
- oil return line below oil level in sump
- not enough diameter of return pipe
- poor engine ventilation causing backpressure in oil sump

My turbo oil return orifice is face down toward oil sump.
Anyone with similar experience?
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Old 12-13-2010, 01:26 PM   #2
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do a compression test and add an oil restrictor. and let me know if the compression test numbers are bad and if they arent the restrictor will fix your issue....
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Old 12-13-2010, 01:28 PM   #3
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whenever in boost or vacuum downhill?
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Old 12-13-2010, 01:36 PM   #4
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Thanks Shlammed, compression numbers looks good, I will have a look at the restrictor.
Hi Braineack, its happens when on throttle and slight boost onwards.
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Old 12-13-2010, 01:39 PM   #5
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What I wonder is, why is it that the problem happens on downslope?
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