Barksavon
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| posted on 19/9/19 at 09:49 AM |
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Checking valve clearances on ST170 engine
Hi, can someone tell me whether the procedure for checking valve clearances on ST170 engine is the same as a standard Zetec engine. We've got a
Haynes manual but doesn't cover ST170. Manual states the No1 cylinder exhaust and inlet camshaft lobes should be pointing upwards (but not
vertical) with no 1 at TDC on compression stroke (i.e with the camshaft slots lined up) Ours seem to be pointing out to the sides? Also the book gives
figures for checking and setting.....what's all that about.
Thanks
Ian
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furryeggs
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| posted on 19/9/19 at 03:33 PM |
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I think once it’s set at TDC with the cam bar across the back (like a Blacktop) you then have to rotate one of the cams a set amount to get the right
angle/timing for the vvt. I’m not 100% on figures but I’m sure bigwasa will be along shortly to tell you what to do.
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rusty nuts
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| posted on 19/9/19 at 08:27 PM |
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If you set no one at TDC check the valve clearances then rotate the crank 180 degrees check next cylinder in the firing order and so on. Make a note
of the clearances at each point then remove the cams to adjust
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