Timing Adjustment

[dylan0451]

1990 NA 1600

First car i've had where i've been able to adjust the timing (or bothered to :-p) so play nice...

changed the CAS O ring for piece of mind, using an existing mark to remember placement.

i ground GND and TEN and got the idle ok,

have a paul sheard ported head, and think the AFM has been tweaked if that helps

deciding where the pully notch pointed to at idle with the strobe was difficult though

it would spend maybe 50% of the time around 12 degrees, then for the rest of the time be erratic and hit 14 degrees and 10 degrees

i've left it that way as i don't want to advance it so far i either begin to loose power or melt rings but i'd be interested to know if i've got it right



pulled the engine speed up assuming it'd smooth the reading out but the notch went off the scale

(goes off to read ignition + timing 101)

Edited by dylan0451 on Friday 9th October 15:42

[Joem]

I got so frustrated trying to set mine that gave up in the end. I've got a brand new timing light available if anyone needs one.

[snotrag]

I found it really easy - so something is up I assume.

When it is fluctuating - is the engine speed fluctuating?

Do you have a really good connection to your HT lead?

[dylan0451]

the timing light is inductive pickup type i.e. clamps round the rubber sheath of the lead. the leads are supressed magnecor ones but if the reading through the lead were the issue i'd have thought it would cause more issues than just a slightly erratic reading

[dylan0451]

the timing light is inductive pickup type i.e. clamps round the rubber sheath of the lead. the leads are supressed magnecor ones but if the reading through the lead were the issue i'd have thought it would cause more issues than just a slightly erratic reading