BOV
failure consequences 
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| Ever wondered what good a BOV valve does on a turbo car? Here's
some photo documentation of what can happen if your BOV fails. These pictures
are of a 14b turbo that was in prime condition prior to the incident.
After an extended high speed run, the throttle plate was quickly slammed
shut. Problem is, the driver didn't know that the vacuum line had
come off the BOV thus rendering it useless. A large shock wave was
induced at the throttle plate and slammed back to the compressor wheel
totally grenading this turbo...
[click on the pics for a larger view] |
First, we notice that the compressor shaft is seriously off axis. This
shot is looking straight into the compressor inlet and you'll notice that
the tip of the shaft is way over to one side. |
After the housing has been removed, we see the extent of the damage. Here
we see that the compressor wheel has made significant contact with the
housing and leaving the blades totally bent and damaged. We also
notice that the back of the wheel has come up (bypassing all the turbo
oil flow) due to the extreme shaft bend. |
A view from the side showing the separation of the compressor wheel from
the cartridge. |
And finally, we can see how the shaft bearings have disintegrated. Ouch! |
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This document is intended for educational purposes only and is the sole property of SteveTek Inc. The assertions and conclusions contained herein are based on the authors findings and are not guaranteed accurate. SteveTek Inc. cannot take responsibility for any modifications to your vehicle based on this information. Copyright 2001, by SteveTek Inc.
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