Timing a K75

[TimTyler]

I've read http://skylands.ibmwr.org/tom/tech/k75_timing.html and the Timing Advance thread here.

Once the HES T-cover is removed, is there a timing mark that can be checked through that gap in the HES with a standard timing gun?

[TimTyler]

Finally bought a cheap timing light.

Followed the info at ibmwr.org and using a protractor image on the laptop, marked a 30 degree line on the disc.

After a few tries rotating the HES sensors I was able to get the 30-degree scribe to line up with the crankcase arrow at 4000rpm. At idle the notch in the plate is probably 8-10 degrees from the crankcase arrow.

The engine sounds smooth but I'm a little concerned with the positioning of the HES. For the last 30k miles it's been lined up symmetrically with the U-notch in the engine block, but now it's not. Should i be worried?

 

[wmax351]

I just set the timing precisely for the first time since my rebuild. That's almost exactly where mine is set up for 33 degrees at 6000 rpm.

[vintagemilano]

Mine looks the same as yours, did it just a couple of weeks ago.

[TimTyler]

Okay, cool.

Thanks, guys.