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Old 02-22-2004, 12:49 AM   #1
ilmaestro
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1998 2.5 RS - Blue
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Default Removing cam sprocket

I've heard several different methods for doing this, but everything seems to have some risk involved. The best method I have heard so far for holding the cam still while removing the sprocket is to fit an open ended box wrench over the camshaft (inside the valve cover) then loosen the sprocket bolt while the camshaft is stabilized. Does anyone know what size and type wrench I would need to fit over the camshaft in order to do this? Also, I am not sure what size of wrench the sprocket bolt requires (8mm)?

My car is a 98RS (DOHC).

thanks
Jonathan
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Old 02-22-2004, 01:51 AM   #2
THAWA
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What about putting it in 5th if manual or sticking something in the bell housing if auto and while the belt is still on turn the cam bolts. THat's what I did to remove my cam sprockets.
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Old 02-22-2004, 04:08 AM   #3
ilmaestro
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Quote:
Originally posted by THAWA
What about putting it in 5th if manual or sticking something in the bell housing if auto and while the belt is still on turn the cam bolts. THat's what I did to remove my cam sprockets.
Hmm, I was planning on having the engine out of the car to replace the headgaskets, but I suppose I could loosen the cam bolts with it in. This would stress the timing belt no doubt?
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Old 02-22-2004, 09:35 AM   #4
THAWA
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i cant see why, the belt is constantly being pulled like this
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Old 02-22-2004, 09:49 AM   #5
wac
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Default Re: Removing cam sprocket

Quote:
The best method I have heard so far for holding the cam still while removing the sprocket is to fit an open ended box wrench over the camshaft (inside the valve cover) then loosen the sprocket bolt while the camshaft is stabilized.
That's pretty much the surest way. The camshaft flats are an odd size (I forget exactly what it is), so you may have to use a large adjustable wrench on it.

Another variation is to have a helper hold the cam sprocket with a pair of work/welding gloves, and hitting the bolt with a stiff impact wrench.

The Haynes manual says to use a channel lock on the flats of the sprocket, but the channel lock couldn't hold it well enough to counteract the torque on the sprocket bolt.

The sprocket bolt is either a 14mm or 17mm.
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Old 02-22-2004, 07:35 PM   #6
ilmaestro
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Thanks for the responses. I'm going to see if I can find someone who will let me borrow an impact wrench, or I will try to hold the cam with a wrench from inside the head... otherwise I will improvise

jonathan
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