Knock sensors

[Ludis Langens]

Bill Edgeworth <bedgew at ix.netcom.com> wrote:
> I am adapting a 730 to a Mopar RB engine and I have some questions about
> Knock sensors:
> How sensitive are knock sensors to noise generated by gear drives? If
> they are affected would selection solve the problem? ( for instance a
> knock sensor off a factory supercharged engine)
> What about noise from mechanical (roller cams)?

My gear drive Ford 2.8 (EEC-IV w/ carb) uses a knock sensor.  It also
has solid (click, click, click) lifters.  The knock sensor is screwed
into a standoff that screws into the side skirt of the block.  I'm not
sure if the standoff is for noise isolation or to adapt between SAE
threads on the KS and metric in the block.  BTW, the standoff is, um,
press together.

(Hmmm, with almost 800 miles on the freshly rebuilt 2.8, it is starting
to make more power.  This started around 650 miles.  I'm not noticing
any lifter clacking anymore either.  Perhaps the KS was retarding the
timing due to lifter noise.)

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/