St170 head overheating
17-03-2011, 08:50 PM
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St 170 Owner @ 330 000 km
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St170 head overheating
My St170 oil/head temperature rises rapidly upon acelleration in 3rd gear but come down rapidly if I back-off on the acellerator. This car is stock standard since new with 336000km (yes 336000km) on the clock. I need a quick answer to prevent engin damage! The motor performs well when cold but it feels like you go with the handbrake applied when warm. I have replaced the fuelpump, fuel filter, VVT cam oil supply valve - but the symptom persists... HELP!
02-06-2011, 09:21 PM
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St 170 Owner @ 330 000 km
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Ford focus st170 overheats
Resolved by:-
1) Changed the thermostat that was stuck
2) set the cam timing properly - turn engin ONLY clockwise to TDC- If you miss the spot turn another 2 turns for the crank before setting the cams.
3) The FLYWHEEL TIMING SENSOR ( Engin speed sensor) BRACKET was loose allowing the timing to be irratic, causing RAPID heating and cooling of the head.
HOPE this will help others.
1) Changed the thermostat that was stuck
2) set the cam timing properly - turn engin ONLY clockwise to TDC- If you miss the spot turn another 2 turns for the crank before setting the cams.
3) The FLYWHEEL TIMING SENSOR ( Engin speed sensor) BRACKET was loose allowing the timing to be irratic, causing RAPID heating and cooling of the head.
HOPE this will help others.
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