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Timing Problem or possibly worse!!!!
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Old 27 Nov 2005, 11:47 AM   #1 (permalink)
mal
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Timing Problem or possibly worse!!!!

Please can someone help on this issue....

On my way home from Cardiff last night, my power steering stopped working & the check engine light came on..after stopping, found out that the alternator belt had some how come off (not broken). Managed to get car home in almost total darkness last mile or so as lights were now no more than a faint glow.
Anyhow i managed to get the alternator belt back on and decided to run the car for a few minutes at about 2000 rpm to charge battery, after about 30secs the engine started to die...i thought belt had come off again..went to have a look and to my horror i noticed that the crank pulley / timing wheel? (i think...i'm not technically minded. it's the pulley directly below the alternator) anyway this pulley was not on straight & was loose (as in sideways movement) ...There's another belt on this...which i pressume is the timing belt? The bolt in front was loose so i started tightening up just enough so not to lose it....but now what!!
There were no bangs or unusual noises coming from engine, it just died slowly...which through experience is the norm for a flat battery, "i hope"
Now i need to get the pulley back on & in the correct alignement...if i put it straight back on as is then i know what can & probably will go wrong......is finding TDC easy on these cars without any need specialist tools (if i can get TDC then i can possibly take it to a garage afterwards to get timing done correctly).....obviously i can't take it to a garage as it is now & i don't know anybody with mechnical knowledge to help, so i'm a bit stuck....any suggestions as i really don't know what to do next or where to start even!!!!

Sorry to be so long winded.......and thanks in advance to all who reply to this post

Mal
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Old 27 Nov 2005, 12:54 PM   #2 (permalink)
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I think you will find the timing belt is under the timing cover on another pulley behind that pulley.

You should just need to tighten it up.

The car probably died because the battery is totally flat. charge the battery. Tighten everything up and try again......
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Old 27 Nov 2005, 01:00 PM   #3 (permalink)
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sorry but i forgot to mention....but just behind the wheel there are a set of numbers...they look like timing numbers..... example below...sorry no photo

30 III 20 III 10III 0 III 10
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Old 27 Nov 2005, 01:25 PM   #4 (permalink)
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They will be for the small timing wheel I think

See attached. (3) is the timing sprocket on the crankshaft
Edited to say :-
Forgot to say has the pulley not got a keyway and only go on in one position
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File Type: jpg timing_311.jpg (74.1 KB, 26 views)
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Old 27 Nov 2005, 01:34 PM   #5 (permalink)
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Thanks for that pete....i'll get straight onto it now...with a bit of luck everything should be ok afterwards

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Old 27 Nov 2005, 02:51 PM   #6 (permalink)
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Quote:
Originally Posted by PeterUK300
They will be for the small timing wheel I think

See attached. (3) is the timing sprocket on the crankshaft
Edited to say :-
Forgot to say has the pulley not got a keyway and only go on in one position
Hi Pete....
Well you were right, the pulley will only go on one way. There's a slot at the back of the crankshaft pulley....or there should be, whats left of it. It's worn away so much there's not much of a slot left....keeps slipping. I'm hoping that's all is wrong with it...the crankshaft seems to turn alright..so i'm hoping the engine is still in one piece...(or am i over reacting) seems a bit strange for that to wear away...never heard of that before.
Looks like i'll be needing a new pulley. Let you know how it goes.
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Old 27 Nov 2005, 09:09 PM   #7 (permalink)
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the belt has come off simply because of the loose outer crank pulley.................as long as the inner pulley (just visible thro' the plastic cover) has not moved then the timing belt can't slip or move

the 2nd outer belt (inner of the two) will be the air con one and will drive the compressor sat on the passenger side of the engine, the outer belt that came off drives the power steering pump along with the alternator..............

when the pulley is re-fitted make sure you torque up to 100lbs/ft..................

alyn
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Old 27 Nov 2005, 09:27 PM   #8 (permalink)
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Originally Posted by stockcar
the belt has come off simply because of the loose outer crank pulley.................as long as the inner pulley (just visible thro' the plastic cover) has not moved then the timing belt can't slip or move

the 2nd outer belt (inner of the two) will be the air con one and will drive the compressor sat on the passenger side of the engine, the outer belt that came off drives the power steering pump along with the alternator..............

when the pulley is re-fitted make sure you torque up to 100lbs/ft..................

alyn
Thanks alyn .......pete & yourself have put my mind at ease....as you've probably noticed i don't know much about the impreza. It's just that i've had 2 engines die on me in the past. 2 different reasons but both ending up with bent valves and so on. So i guess i was not thinking straight. ops: ops:
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Old 27 Nov 2005, 09:32 PM   #9 (permalink)
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no worries, pleased to have been of help
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Old 28 Nov 2005, 10:30 PM   #10 (permalink)
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Quick post just to let you know that everything is ok....managed to get second hand pulley today...fitted, and running...
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Old 28 Nov 2005, 10:59 PM   #11 (permalink)
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Originally Posted by mal22
Quick post just to let you know that everything is ok....managed to get second hand pulley today...fitted, and running...
Well done m8
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Old 20 Apr 2006, 09:16 PM   #12 (permalink)
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hi pete was reading messages of wisdom regarding loose crank shaft pulley, this happend to me this week got pulley & new woodruf key( old 1 damaged) trying to remove woodruf key slackend cam belt OOOHH SHIIT !! timing now out can you advise ??? doesnt look simple like my old ford turbos
thanks rick
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Old 21 Apr 2006, 07:29 AM   #13 (permalink)
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?? not sure how you've managed to 'loosen' the t/belt just by messing with the front outer pulley??
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Old 23 Apr 2006, 03:04 PM   #14 (permalink)
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Interesting story that. Have never heard of a drive pulley coming loose. They normally have lock tight on or something similar to stop this happening. I remember when changing the timing belt on my last impreza, that was the hardest part of the job trying to get that crank pulley bolt out.

Anyway glad evrything is sorted now.
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