I am having a chattering sound in the top end of the forward cyl. it is only chattering when first started and at stop signs it quits about 2 min after start if i leave it running on the kick stand. could this be the timing chain slapping the case? when should the timing chains be changed I have 31k miles on er'.

hot or cold engine or both, is not stated and very very important.
1.6L is a G16B 16valve engine.

1. find a a mech that can do this.
2. did you drop all belts first? run cold cold for 2 min, gone now?
3. use stethoscope to the front timing belt cover, is this it?
4. forget the 60k mile new timing belt , BINGO.?
5. Forget the 60k valve last check and the stethoscope shows, noise on top valve cover. harbor freight sells it for $5
6. is oil pressure at spec, using a real gauge?
7. is the front crank pulley bolt (17mm head) at 94/100 ft/lbs,. BINGO?
8. is the exhaust collector donut gasket bad? (common) sounds just like bad rods too. so while making noise , use a lever and bend the header pipe,(below collector at CAT, lever it, does noise stop.?? BINGO !
9. is the intake pipe on top of engine, not with huge bolts hold it to the exh top rear header tight, many are loose. fix that now.
10. once you prove all this is good, then bad engine.? by process of elimiation. works.

The timing chain area also takes in the alternator and water pump. To isolate the source of the noise, use the old mechanics trick.

Place a 3 foot 1/4 inch brass rod against the flap at the opening of your ear and push until it closes. Place the other end of the rod against various engine components and listen. The noisy problem will conduct the noise up the rod to your ear and you can hear quite precisely where the problem is. Much safer than laying your ear all over a running engine.

You can also loosen the fan belt and run the engine without alternator or water pump (briefly) to see how that affects the problem. Chatter on start makes me think of starter and Bendix gear problems. Sounds like a 2 person diagnostic team to me; one to start the car and one to listen and probe.

Don't know if Subaru Forrester has an engine that has valve interference at piston Top Dead Center. If it is and the timing chain breaks, you are looking at major $$ to recover.

the moter is loosing power mine did that and had to get a new moter they wear out fast for some reson

Sounds like the module inside the distributor. Have to be replaced.

use an engine flush when changing oil/filter use only 10/40 semi synthetic oil(change every 10k)top end chatter occurs when engine is cold/oil not up to followers,but should stop about 30 secs after starting engine.there ARE NO adjustments AT ALL.if chattering persists,then top end rebuild req.
the person who told you about "rockers"should learn about self adjusting valve followers....

try to adjust your valves on the front cylinder see if the noise stops valve chatter can sound awful a lot like a nock or just a god awful racket

sounds like the starter. Id replace it and you should be fine. that is usually the frist thing to check when you just get one click noise.

relays only have a specified life of x amount of switches x depending on the style and manufacturer, so there is a good chance it will fail eventually, if you know someone technically minded you could get them to change the relay which would be cheaper than the board its fitted too, as its at the end of the cycle i would guess it controls the heater as it cools down near the end to stop you buring yourself on the drum.

I just fixed my 110.73932102 model dryer, and have done about a week of web research on that problem. I got a electronic control board from AppliancePartsSolutions.com for about $60 delivered-took about 4 days. Use flat screwdriver to pop off plastic ends of top console. Under plastic ends, find one screw (phillips) on each end-remove. Then, slide console forward 1/2 inch and it should open back to expose innards. Note-follow static elec. charge abatement procedures around all electronics! Part snaps out and in after disconnecting wiring. 20 minutes, tops and you're running again. Less than the service call! Good luck.

sounds like a cv joint