Knock on startup...
#1
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Knock on startup...
Iv been away all week so the car hasnt been started for a few days....just went to give it a run as it had been sat there most the week, checked all my levels first as i like to do this at least once a week, everything all good...
had the bonnet open when i started it up, and the engine made a bit of a knocking noise for about the first three seconds then it disappeared....i let the car warm up for a bit then drove it up the road and went out for a short drive....all sounded totally normal since throughout the rev range, and tried starting it up a few more times to see if i could hear it again but all seems fine now...
Iv never heard it make this noise before though - however, i have only owned the car for 3 months.
I wondered if this was possibly just due to the fact its started to get a lot colder in the past week, and so could have possibly been a bit of piston slap as the engine was freezing cold when started?
had the bonnet open when i started it up, and the engine made a bit of a knocking noise for about the first three seconds then it disappeared....i let the car warm up for a bit then drove it up the road and went out for a short drive....all sounded totally normal since throughout the rev range, and tried starting it up a few more times to see if i could hear it again but all seems fine now...
Iv never heard it make this noise before though - however, i have only owned the car for 3 months.
I wondered if this was possibly just due to the fact its started to get a lot colder in the past week, and so could have possibly been a bit of piston slap as the engine was freezing cold when started?
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Sounds as though the oil had drained out of the heads.When it started up,the oil was circulated back into the heads and pressure was established. Hence the short amount of noise upon start up.If you are using a heavy grade oile,I would switch to something a bit lighter.I run 10/40 in the summer and 5/30 in the winter.Personal preference.But,I have no problems.
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Sounds as though the oil had drained out of the heads.When it started up,the oil was circulated back into the heads and pressure was established. Hence the short amount of noise upon start up.If you are using a heavy grade oile,I would switch to something a bit lighter.I run 10/40 in the summer and 5/30 in the winter.Personal preference.But,I have no problems.
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I think so.Can't remember the last time I had to do this on a Scooby.I know that other vehicles will fuel when spun regardless of crank sensor signal.Can't guarantee it though mate.You'll know the first time you try it.If it wreeks of petrol,then they are fueling.
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Ok thanks for the help guys
Just popped out to the car again and started it and it was fine (altho obv still warm from earlier) so hopefully its all good nothing too worry about
Just popped out to the car again and started it and it was fine (altho obv still warm from earlier) so hopefully its all good nothing too worry about
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