If you give a cold engine a hard time you increase the risk of engine wear and/or engine damage. It is more about not putting the engine under excessive loads and high RPM while it is cold. It goes away once they are warm and up to temperature as they expand to the correct clearance. An example of this is if you have a performance engine with forged pistons these may get a rattling noise when they are cold and get a noise called piston slap. The other reason for warm-up is to allow all of the moving parts to get up to their correct operating temperatures and expand and contract to the correct clearances. The oil moves pretty quickly but when the oil is cold it is too thick to lubricate correctly. Tony: Warming-up the vehicle is to allow oil to flow around the engine. Mr4X4 : Apart from getting oil around the engine, what’s the purpose of warming-up the engine, from an expert’s point of view? 30 minutes of warm-up is not necessary and on modern diesels will cause problems with DPF-type vehicles and excessive soot build-up from EGR in the intake, etc. Don’t over-rev the vehicle, just take it steady until it warms up to normal on the temp gauge. I feel that you should start the vehicle give it a minute or two then proceed off at a steady pace. Tony: Warm-up is a little bit of a personal thing. Mr4X4: For how long should you warm-up the engine on your diesel tow rig? We’ve heard some of the ‘Grey Nomads’ idling away for some thirty minutes (while they hitch the van and sort the handbrake out).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |