4kc Crank Pulley Has 2 Notches

[phs]

hi guys, i have an 83 KE70 that is running like a dogs breakfast, very hard to start, top speed 80km/hr

 

so i plug in the inductive timing light on #1 cylinder, facing correct way to spark plug, shine it on the pulley

i see two notches some good 75-90degrees from where it should be

both notches are on the front of the wheel (shown as red arrows in mspaint drawing top corner)

 

how do i tune this? do i use the notch on the left and attempt to correct it to 8deg?

or do i use the notch on the right?

 

has anyone come across this before?

is this so completely out in timing?

 

any help is appreciated

thanks

-paul

 

[Trev]

Not sure about K motors but on S and A series you can tell with the crank pulley keyway, It faces up at TDC.

[TE278U]

try putting the pulley on backwards so the notches are toward the timing cover.

 

put the engine at tdc on number one cyl firing stroke or as close to it as you can without a timing degree wheel.

 

mark a spot on your crank pulley as small as you can with liquid paper or chalk.

 

loosen your dizzy so you can turn the body of it as if you were adjusting it. take the cap off it, and take out the rotor button and the cover plate to the points if it has one. (you need to be able to see the points open. turn the ignition on so you get lights on the dash, but don't crank. turn the body of the dizzy backward or forward the smallest amount until the points open and close again.

 

the points should spark.

if you don't have spark, check that the ignition is on.

 

slowly start to turn the distributor body back to where it was originally. as soon as the points spark, stop turning the dizzy, and tighten it up.

 

your timing should now be set as close as possible to o degrees advance based on how close you got to tdc on number 1.

 

put the dizzy cap and rotor button back together, start it up, then use the white dot as your reference mark.

 

good luck :hmm:

 

-dave

[TE278U]

and when checking timing, make sure your vaccuum advance hose is disconnected from the vacuum can on the side of your dissy. :hmm:

[camerondownunder88]

Have you swapped your timing chain cover at all?

 

Between K motors the degree markings on them move wrong cover for your K motor will screw your timing.

 

Also I wind mine to TDC cylinder 1 and slide pulley on the timing mark that is on the pulley that aligns with the cover is the one you want.

 

Cameron

[Taz_Rx]

TE278U - You've given him a great description on how to time his motor, but thats not his main problem, as he doesn't actually know where TDC is!!!!

 

1, Remove tappet cover.

2, Remove #1 spark plug

3, wind motor over with 19mm spanner on crank pulley until you see #1 intake valve open.

4, keep winding it until the valve shut again (the engine is now on its compression stroke).

5, Carefully push a screw driver into the plug hole so it sits on the top of the piston

6, Find the point at which the screwdriver is at it highest, befor it goes back down again - This is TDC.

7, See if either of you timing marks are now on 0o. If not make a new one, and not matter what pulley/timing cover you have it will now be correct. :hmm:

 

Then follow TE278U's instruction on how to time the dizzy. :y:

[TE278U]

i thought finding TDC was like finding the clit...

 

guess some people don't know... :)

 

thanks for the additional info...

 

 

 

 

 

 

 

 

 

 

btw... with screwdriver on top of piston method, would it be correct to say that rotor button would be pointing at the position where number one spark plug lead would normally go... (eliminates removing rocker cover.)

 

only true if piston is at top of stroke with points opening...

[philbey]

try putting the pulley on backwards so the notches are toward the timing cover.

 

I dunno if I'd try that, you'll dump a fair bit of oil on the floor :) He's got a single piece pulley by the looks of it.

 

I didn't realise they have different timing covers, I better check the one I just picked up at the wreckers. Might grab the pulley off the same car....!

[phs]

ok guys thanks to all for your help :)

figured it out

 

i may very well be a dumbass

 

so i did the screwdriver trick like you suggested Taz_Rx, i also used a torch to shine down cyl 1 to confirm that piston was at TDC

 

so i went to mark a new TDC point when i realised there was already a small rusted notch there!... on the side CLOSEST to the timing marks

ie when i was using the timing light, i was looking 45degrees towards the pulley as to avoid tangling my cords in the fan, and i was looking

at the front face of the pulley, of course i saw the two large notches and assumed they were the ones i needed to align to

 

traps for young players

 

then i simply moved the distributor around and got it from 2deg to -20... oops, engine splutters, then back to 8deg

 

runs much better now

 

thanks!

[Xany]

i wish i had of looked in here earlier.....i've done it myself once. Now i know that the timing mark is on the side closest to the engine.....if it aint there....look for it properly with a screwdriver. lol