ClubWRX Forum banner

1 - 10 of 10 Posts

·
Registered
Joined
·
7 Posts
Discussion Starter #1
I have a 2002 wrx with turboback exhaust, GM boost solenoid, and a tune. Until now it has run perfectly.
Last weekend I installed a new oil pan + windage tray + pickup tube. While I was threading the dipstick tube back into place I gave the timing belt cover a pretty good hit and cracked it. I removed part of the cover to make sure I hadn't damaged anything and then finished the install.

It should be noted that I have had misfire issues on cylinder 1 before, which I was able to clear up by cleaning my injectors.

When I start the car I can feel that it is misfiring slightly, and with each misfire (shudder) I can hear a short squeaking/chirping sound, it sounds very much like a belt squeaking. When I removed the side sections of the timing belt cover I was able to narrow the sound down to the front right side of the engine bay, but was unable to verify if it was the belt making the noise. I drove 0.7 miles to a garage I could work in with some light, and as I was pulling in I got a CEL.

I hadn't thrown a CEL before this, so I was interested to know if it was just letting me know there were some misfires. I loaded up Learning View, you can see the results below.
LearningView_SS_2-1-2012 10 17 04 PM.jpg

How worried should I be that there is a chirp/squeak each time I feel a misfire?
Any help would be appreciated.
 

·
Premium Member
Joined
·
6,501 Posts
You need to pull the timing belt cover off and recheck the cam timing as well as make sure nothing else is damaged. I would be worried about the squeaking.
 

·
Registered
Joined
·
7 Posts
Discussion Starter #3 (Edited)
Is there a specific reason I should be worried about the squeaking other than the fact that my car could be eating itself and throwing bits and pieces around inside the engine?
Last night when I looked the timing belt did not appear to be damaged at all. I'll get the timing belt cover all the way off as soon as I can (and won't drive it) and update with my findings.
 

·
Registered
Joined
·
7 Posts
Discussion Starter #4
I took the timing belt cover off so I could see if the belt had skipped or something. This is what I found:

I lined up the crankshaft. You'll have to trust me that it's lined up, it was difficult to get my phone down in there to take pictures.


Top left (driver's side) looks lined up to me. Again; I'm off to the side slightly, so it doesn't look perfectly lined up in this picture.


In the pictures I have seen these timing marks never line up perfectly, but they look a bit far off to me.


Top right looked good to me as well.


The timing marks on the right side (passenger) looked a little off to me as well.


I've never done my timing belt, so I'm not sure how perfectly lined up all of these marks usually are. Does it look like I skipped a tooth to anyone?
 

·
Good news, everyone!
Joined
·
3,856 Posts
Looks like you've jumped time to me, which explains your misfire issue right there.

The lines have to be exactly, and I mean exactly lined up in order to be on perfect time. There is a timing belt guide down on the bottom right corner that may have been bumped and caused the belt to drag a bit, that's really my only guess as to what could have happened.

Timing belts really aren't too difficult on these cars, just did mine a couple weeks ago. But they are very sensitive, you have to pay very close attention to what you are doing, even as far as to pay attention to which way you're turning the cams to get them to line up (driver side cams are on lobe).
 

·
Registered
Joined
·
7 Posts
Discussion Starter #6 (Edited)
What do you think is the easiest way to go about setting things back the way they should be?

Mark where the belt is on everything,
Remove the tensioner (compress slowly, insert pin, etc),
Should I be able to just slip the belt off the edge of the gears that need to be re-set and then slip it back on again?
Put tensioner back, pull the pin,
Done?

The water pump, tensioner, and idler pulleys were replaced when I had the timing done at 105k, so everything is relatively new still.
 

·
Good news, everyone!
Joined
·
3,856 Posts
Everything off, everything on again. All of the gears are going to slip when you take the tensioner off, so they will need to be reset again. Like I said the driver side cams are on lobe, so you will need to take care when lining those up, and it's good to have a second pair of hands. The passenger side is extremely easy because you can turn the cams either way, so long as there isn't resistance.
 

·
Registered
Joined
·
7 Posts
Discussion Starter #8
I got everything retimed yesterday with the help of my roommate. Unfortunately my battery is dead now so I haven't had a chance to fire it up, but I turned everything around a few cycles and all the marks line up perfectly, so I'm confident I got it right.
 

·
Good news, everyone!
Joined
·
3,856 Posts
Good deal man, hoping for a good outcome.
 

·
Registered
Joined
·
7 Posts
Discussion Starter #10
Late update.
Friend jumped my car, I went and got a new battery and drove around for a while.
So far so good! I've been pushing it a little more each time I drive it and it looks like all my issues are fixed.
I might have a slight oil leak from my turbo oil-return line, and a bit of oil on a bolt somewhere is undoubtedly what has been making the squeaking sound.
I would call this a success, and more so because I managed to complete the timing in the street oustide of my apartment.

Thanks for the help.
 
1 - 10 of 10 Posts
Top