Knock Sensors

r2d2hp · Post by **r2d2hp** » Mon Jan 01, 2007 12:15 pm

Has anyone got any pictures of a v8 rover block fitted with knock sensors as I would like to fit them to my early engine and want to get them in the correct place.

Thanks

Found one picture on RPI site that shows location on dipstick side, just need drivers side now.

ChrisJC · Post by **ChrisJC** » Wed Jan 03, 2007 1:27 pm

Check out my rebuild page (shed loads of images)
http://www.cowdery.org.uk/v8rebuild.php
There's a knock sensor in the non dipstick side, and you can see the mounting for the sensor in the other side in the same place.

Chris.

r2d2hp · Post by **r2d2hp** » Wed Jan 03, 2007 3:04 pm

Thanks Chris,

Do the holes blind or do they go into the water jacket.

Pocket rocket · Post by **Pocket rocket** » Thu Jan 04, 2007 7:13 am

Forgive my ignorance but what are these sensors and how do they work?

ChrisJC · Post by **ChrisJC** » Thu Jan 04, 2007 8:07 am

The holes are blind.

A knock sensor is a type of microphone, which is hooked up to the ECU which listens for the characteristic sound of pre-ignition. That way the ECU can run the timing much closer to optimum as it has a safety mechanism to detect pinking. A distributor can't do that of course.

Chris.