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Location:
Nelson NZ
Registered:
August 2003
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Cam Timimg on 18 rgeu
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Sun, 31 August 2003 12:22
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any one no how to do this i have got cylinder 1 at tdc its about 10 btdc on the pulley the cam gears have a mark on each they r at the top. what do i do form here?????
Thanks
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Location:
Perth
Registered:
May 2003
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Re: Cam Timimg on 18 rgeu
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Sun, 31 August 2003 13:43
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Assuming:
1) You have already removed the top adjuster in the side of the head
2) If you have the cam gears with adjustable holes, you have loosened both cam gear fixing bolts and the locating dowels
When No 1 is at top dead centre, one of the marks on the harmonic balancer should line up with the indicator (well at least this is correct for the earlier RG).
There are two slots cut out of the thrust flange of each cam (on the cam NOT on the gear). These two slots should be vertical and hence parallel to each other when No 1 is at TDC. There is an original Toyota tool available for this but it can be done pretty accurately by eye.
With the cams in the correct position, refit the cam gears and timing chain. If you have the adjustable gears, remove the locating dowel and rotate the cam gear with the chain on (by 'walking' the chain over the gear - dont turn the cams or the motor) till one of the dowel holes in the gear aligns with the one in the cams, this can take a couple of trys.
Once the cam gears are set properly and you have fitted the dowel and the chain is on, refit and set the upper chain tensioner. Now re-tension the cam gear retaining bolts.
Note: Always keep the 'pulling' side of the chain in tension when setting the gears (that is the passenger side of the vehicle or right hand side of the motor as you face it).
Be VERY careful when rotating the cams independently of the motor. You are better off to remove the cams and place them in the correct position then replace and re-tension the cam caps.
Hope this is clear enough 
Cheers,
Tyron.
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Location:
Adelaide
Registered:
June 2003
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Re: Cam Timimg on 18 rgeu
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Mon, 01 September 2003 01:28
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When tightening the cam gear reteiner bolts (for adjustable timing cams esp.) make sure that you tighten it against a wrench on the hex part of the cam (near the front)to hold the cam in its place.
cam timing marks at 12:00 as the other guy said.
early rolla said everything else.
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Location:
Adelaide
Registered:
June 2003
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Re: Cam Timimg on 18 rgeu
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Mon, 01 September 2003 01:30
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The timing marks on our 18rgu pulley are as follows. The first one (as engine turns around) to reach the timing pin on the timing case indicates 9.8 degrees BTDC. The second indicates TDC.
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