ATTN: anyone that know how to do the timing on an SR20

[fico]

Yeah so i figured out all the little kinks of my car(SR20DET in S13) now all i need is to get it timed right... so if there is anyone close to akron that wouldnt mind giving me a hand i would prolly love you...or if u can tell me what to do let me know

[s13silvia123]

http://www.frsport.com/sr20det-crank-angle-sensor-cas-timing-guide-p-648.html

next time search

[fico]

i know i can search but the thing is id rather have someone close come help me if they could i have that guide along wiht HT ...

[koukimonster139]

dude its not that hard, seriously it takes like 10 minutes even if you dont know what you're doing. get a FSM.

[fico]

the only fsm i can find are for the ka so those dont do me any good...how do you turn the crank shaft to get the chain to go?

[koukimonster139]

i have the SR and KA fsm at the house on disc..i can email you the pages that have to do with timing when I get home.

[statik]

the only fsm i can find are for the ka so those dont do me any good...how do you turn the crank shaft to get the chain to go?

IIRC its a 27MM socket or something for the crank pulley nut, then just turn it with a ratchet, here is the S14 SR FSM (there is no s13 fsm translated)

http://static.carvolution.org/S14_SR20DET_FSM.pdf

grab it while you can, i won't keep it up there long

[HalveBlue]

It's simple. The instructions below may seem complex but that's because I tend to overexplain.

The best thing to do is to take these instructions along with the FSM procedure and the link s13silvia123 provided.

Don't be afraid to do this yourself. You have to learn one way or another, and this way is as good as any.



1. Take off Valve Cover. Remove Spark Plugs (you can leave them in if you want but taking them out makes it easier to rotate the crank pulley).

2. Set #1 piston to Top Dead Center. The best way to do this is to remove the #1 SP and take a long bamboo skewer and and place it inside the cylinder. You're #1 piston is at TDC when the mating mark on the crank pulley alligns with the needle and the bamboo skewer sticking out as far as it can.

2. Remove Timing Chain Tensioner (TCT) and Cam Angle Sensor (CAS). Remove upper Timing Chain Guide.

3. Take of the the Cam Sprockets and Timing Chain. You'll need a 25/26mm wrench for the hex areas on the camshaft and a 1/2" breaker bar with a 24mm (I think) socket for the camshaft nut.

4. Once the timing chain and cam sprockets are removed (don't drop it) rotate the camshafts so that the allignment marks are at about 12 o'clock for the Right Hand camshaft and 10 o'clock for the Left Hand cam. You'll notice that the camshafts will want to fall into place. Basically, if you've done it right the first lobes on the the LH and RH cams will face away from each other and allingment marks will be in the positions I talked about above.

5. Now, here comes the somewhat tricky part. You have to rotate the crankshaft pulley to get the timing chain to rotate. Eventually you'll rotate the chain to where both silver links (they might look more like a dark gray) are on top and visible with one link in proximity to the mating mark on the RH cam and the other link in proximity with the mating mark on the LH cam. At this point your #1 piston should be at TDC.

The reason this can get tricky is because the timing chain may bunch up on you on the bottom. If this happens trying reversing the crank pully until you have more slack. Also, while rotating the crank pulley make sure you hold the timing chain tight with one hand so that it won't bunch up.

6. Now, hand tighten the LH cam sprocket and nut and place the silver link on the timing chain over the appropriate mating mark on the cam sprocket. Tighten down the sprocket a little more with a wrench, but not all the way.

Now do the same thing with the RH cam sprocket, making sure you allign the mating marks.

7. If done properly both silver links will line up with the appropriate allignment marks on the cam sprockets.

8. Now comes the other tricky part. The timing chain at this point will more likely than not have some slack on it, because the timing chain tensioner isn't in place yet. At this time you'll want to tighten down the cam sprockets to their proper torque specs (check the FSM). The problem is that sometimes the cam shaft will want to rotate and will make the chain jump off the mating mark position. If this happens just rotate the cam back to the original position and try again.

8. Reinstall Upper Timing Chain Guide

9. Once your cam sprockets are in place and torqued to spec you can start replacing the TCT and CAS.

10. Install TCT. Push down the sleeve on the chain tensioner so that it retreates into the chain tensioner housing. There's a little hook that will lock onto a pin that's connected to the sleeve. It sounds weird but it'll make sense when you see it. Note: The chain tensioner sleeve has some pressure behind it so it may not seem like it's moving when you push it down; it is, just very slowly, be patient.

Once you insert the "locked" chain tensioner rotate the crank pulley counter clockwise until the hook releases. Then realign the crank pulley to lign up witht the second mating mark (i.e. make sure #1 piston is at TDC).

11. Install the CAS. There are two mating mark indentations on the CAS's shaft and one mating mark line on the CAS housing. Hold the CAS with the black cap towards your body and rotate the shaft until you line up the mating mark line with the right most mark on the shaft.

Now insert the CAS. If done correctly the CAS shaft will rotate until the second mark on the shaft more or less aligns with the mark on the CAS housing. NOTE: Don't tighten down the CAS screws all the way. You'll want to leave them loose so that you can adjust the CAS as needed.

12. Now reinstall the Valve Cover, and reattach everything you removed. Start your car. If you followed the procedure correctly you're car should start up. It may have a rough idle. Using a timing light rotate the CAS until the second to last mating mark lines up on the crank pulley. Now tighten down the CAS screws.

13. You should now have reset your timing to factory specs. Yay!

[drifter808]

do mean mechanical timing or ignition timing?

ignition timing:

1: remove the #1 cylinder coilpack and loosen the CAS bolts.

2: i use an old spark plug wire off my KA but you connect it to the plug and put the the other end into the coilpack. So your completing the spark but now its running through a spark plug wire.

3: hook up your timing light to the wire and adjust the CAS from there. Stock is 15 degrees.

This is the way i been doing it ever since i owned my car and works great everytime. You can use the timing loop at the back of the coilpack harness but when i use mine it reads like 10-15 degrees advanced so it throws everything off.