Engine: 140 1986cc B20A: - oil change?

RoscoMac · Sep 21st, 2009, 22:29

Needing to do an oil change on the 144, but given that it will be getting laid up for the winter, but with occasional starts/runs to keep it moving, should I change the oil before the winter or after??

Thanks

Ross.

B20F · Sep 22nd, 2009, 12:21

The best to do is to put new oil in before winter. The used oil contains harmful chemicals like acids. These are produced during combustion and which can cause the innards of the engine to rust. Fresh oil protects the engine much better. What I always do before winter lay up is go for a drive for at least 30 min. to get the oil hot so all the water is boiled out of the oil, put it in storage,drain the hot oil, replace the oil filter, put new oil in and cranck the engine to get oil pressure.Don't start it, to avoid oil contamination from combustion. So before crancking disconnect the lead from the coil to the dizzy. This way the fresh oil is nicely distributed inside the engine and can do it's protective work during lay up.

marcmarel · Sep 22nd, 2009, 14:09

Better skip on the occasional runs to keep things moving, I've taken engine apart which stood for years and still had oil everywhere.
For the oil to reach operating temp in winter takes like half an hour, then to blow out all the water from the first half hour takes an hour again.

classicswede · Sep 26th, 2009, 10:55

If you are going to that what I would suggest doing is blocking the fuel pipe off to the carb and run the engine untill the carb is empty. Then do the oil change. That way when the crank the engine ovet to build oil pressure the petrol will not be contaminating the new oil.

skidje · Nov 26th, 2009, 10:22

Hi, Tried to send Classicswede a PM but due to reaching his limits this is not possible. Anyone any hints hwo to reach him? Sorry for using this topic for this message. Regards,

Sep 21st, 2009, 22:29	#1
RoscoMac Scottish Section Chair Last Online: Apr 28th, 2024 22:21 Join Date: Dec 2002 Location: Ayrshire View Photos By: RoscoMac	oil change? Needing to do an oil change on the 144, but given that it will be getting laid up for the winter, but with occasional starts/runs to keep it moving, should I change the oil before the winter or after?? Thanks Ross.

Sep 22nd, 2009, 12:21	#2
B20F Master Member Last Online: Jul 7th, 2016 21:43 Join Date: Mar 2007 Location: Zeist View Photos By: B20F	The best to do is to put new oil in before winter. The used oil contains harmful chemicals like acids. These are produced during combustion and which can cause the innards of the engine to rust. Fresh oil protects the engine much better. What I always do before winter lay up is go for a drive for at least 30 min. to get the oil hot so all the water is boiled out of the oil, put it in storage,drain the hot oil, replace the oil filter, put new oil in and cranck the engine to get oil pressure.Don't start it, to avoid oil contamination from combustion. So before crancking disconnect the lead from the coil to the dizzy. This way the fresh oil is nicely distributed inside the engine and can do it's protective work during lay up. __________________

Sep 26th, 2009, 10:55	#4
classicswede Trader Volvo in my veins Last Online: Today 08:38 Join Date: Dec 2004 Location: Anglesey	If you are going to that what I would suggest doing is blocking the fuel pipe off to the carb and run the engine untill the carb is empty. Then do the oil change. That way when the crank the engine ovet to build oil pressure the petrol will not be contaminating the new oil. __________________ http://www.classicswede.org www.classicswede.co.uk

Nov 26th, 2009, 10:22	#5
skidje Master Member Last Online: Mar 8th, 2024 05:45 Join Date: Nov 2002 Location: Eindhoven	classicswede has a full mailbox. no pm's possible. Hi, Tried to send Classicswede a PM but due to reaching his limits this is not possible. Anyone any hints hwo to reach him? Sorry for using this topic for this message. Regards,

Sep 22nd, 2009, 14:09	#3
marcmarel Member Last Online: Mar 3rd, 2011 10:40 Join Date: Jan 2007 Location: Maasland	Better skip on the occasional runs to keep things moving, I've taken engine apart which stood for years and still had oil everywhere. For the oil to reach operating temp in winter takes like half an hour, then to blow out all the water from the first half hour takes an hour again.

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