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Zoembie

Running On Issue & Screaming fan belt tensioner pulley Sierra 2.0 Dohc 8v

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Hi All
Having issues with engine running on once engine starts to get hot, fine if only driving around the block ect but after a drive when coming to turn off, engine carries on running until you basically have to stall it. Engine is a Sierra 2.0 TWIN OHC 8v in a Ford Escort mk2. As everyone knows these engines are untunable so any other advice would be helpful.
Also has a new Weber carb fitted so not a carb issue.

The second issue is a screaming fan belt tensioner pulley, have replaced the bearing and pulley four times now, with new ones, original ones everything. The pulley once replaced doesn't scream for the first like 20 mins and once again,once the engine gets hot it starts screaming with this annoying noise. What are we doing wrong? Any advice on this would be much appreciated as getting sick of dealing with the same problems

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1 hour ago, notenoughtime said:

It could be the carb not jetted correctly, or just the carb as NEW ones aren’t as good as original items

have you changed the belt 

chain on them

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Running on is usually caused by pre-ignition - potentially with plug tip hot enough to glow and cause erratic firing. I'd check plug heat range is correct? Is it an unleaded suited engine - if not seats / valves could be a cause!

Re : screaming belt - what bearing replaced as you have crank pulley & no bearing, water pump & not easily changed bearing - replace whole pump, alternator likewise as waterpump and any idlers? Lots of bearings and I'd plump for waterpump. Screeching belts usually points to being too loose and occurs when cold due to excess load of thick oil and heavy electrical load. Check belt profile matches the pulley profile as they are not all equal!

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from memory it is possible to alter the ignition timing on that engine 

before you do anything else with the belt put a very small amount of olive oil on it

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