Turbosmart BLOW OFF VALVES - Supersonic – Kompact - Manual (Page 2)

KOMPACT SUPERSONIC BLOW-OFF VALVE INSTRUCTIONS
Head Office: Turbosmart Pty Limited, PO Box 264 Croydon, NSW, 2132 Australia Ph: +61(2) 9798 2866 Fax: +61 (2) 9798 2826 Email: [email protected]
USA Office: Turbosmart USA, 1185 Park Center Drive, Suite Q, Vista CA 92081 USA Ph: (760) 727 7610 Fax: (760) 727 7963 Email: [email protected]
PART NUMBER
FG-BOV-KTSS25
IMPORTANT NOTES ON SETTING THE SPRING TENSION
- Adjustment to the KOMPACT SS BOV is made by rotating the cap (see figure 2), to increase
spring tension rotate in the direction of hard, marked on the top of the cap.
- Rotate the cap in the direction of soft to decrease the spring tension – CAUTION Do not
rotate the cap beyond the indicator groove (see figure 3).
- With the engine at idle the exhaust port should be closed off by the piston – the piston should
be hard against the seat and not floating or moving.
- Free rev the engine and back off quickly, the engine should return to normal idle speed – if
the engine drops below idle or stalls increase the spring tension by half a turn.
- Repeat this process until the engine free revs and returns to normal idle speed.
- Tests drive the car and ensure that when decelerating or changing gears that the engine
does not backfire or stall. If backfiring or stalling is noticed then check all connections made
during the installation, otherwise increase the spring tension.
MAINTAINING YOUR KOMPACT SS BOV
Turbosmart recommends that the following maintenance procedure is carried out at half-year intervals. Regular maintenance will
ensure that your KOMPACT SS BOV is operating at its peak and will extend the working life of the product.
-
Remove the cap of the KOMPACT SS BOV by rotating in an anti-clockwise direction (see figure 2) – CAUTION The cap is under
spring tension, wear safety glasses and remove with care!
- Remove the spring and measure the free length or the overall length of the spring. Replace the spring if its free length is less than
64mm.
- Remove the piston, thoroughly clean the piston and the bore of the KOMPACT SS BOV.
- Inspect the surface of the piston and the bore of the KOMPACT SS BOV for scoring or excessive wear, silver coloured marks are
an indication of excessive wear.
- Check the Cap O-ring for any damage – replace if necessary.
- Lubricate the bore and the piston with Turbosmart lubricant (see figure 3) – DO NOT use grease or viscous oils.
- Re-assemble the KOMPACT SS BOV in the reverse order.
TROUBLE SHOOTING
The following points should be checked if you find that your engine is dipping below normal idle, stalling or if the KOMPACT SS BOV is
functioning poorly. Please note, the following checks will cure 99% of problems experienced with a KOMPACT SS BOV.
-
Check the vacuum hose for splits, cracks, loose connection, kinking or any obstruction – old or fatigued hose may collapse under
vacuum causing an obstruction.
- With the engine running remove the vacuum / boost line from the nipple in the cap of the KOMPACT SS BOV, there should be a
loud hissing sound. The engine should idle poorly, double check by covering the end of the hose with your finger – otherwise the
hose is blocked.
- Check to see if the KOMPACT SS BOV is blocked or contaminated with dirt or debris, if the valve appears to be contaminated
follow the maintenance directions above.
- Ensure that the vacuum / pressure source is not shared and that the vacuum source is directly from the inlet manifold.
- Ensure that the exhaust hose is blanked off.
- Check the seal between the boost hose and the KOMPACT SS BOV – ensure the hose clamps are tightened.
Spring – Pink colour
Cap
Lubricate
Free Length
Cap O-ring
Indicator Groove
Piston
Figure 2 Top View of Cap showing
Hard, Soft adjustments
Figure 3 Exploded View of the Kompact SS BOV
adjustments