Quote:
Originally Posted by Z51JEFF
Lately after my car sits for a few weeks it will start instantly,its a little unnerving considering the oil hasn't has a chance to pump up.Marc H says its nothing to worry about so I guess its no big deal just cant understand why all of the sudden its doing this.My first thought was a leaky fuel injector.
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Honestly, it may be timing and compression just by the luck of the draw, so to speak, as the motor is shut off. This happens to me regularly enough.
Yes, it kinda takes you by surprise. I don't like it because I always like a longer cranking time in order to get some oil to the top of the heads, even though I have the check valve in the oil filter. And when this instant start happens, it always seems that the rpms are high initially, as well.
I spoke to both Pete and Marc about it and was told not to be concerned.
I also studied the old Lotus engine build data that I have. Their data showed 5 seconds to build oil pressure upon start-up. This was only one example.