[Mercedes] OT Pre-oiler?

Rick Knoble rickknoble at hotmail.com
Sat Dec 20 21:57:53 EST 2025


Or a Subaru with timing chain rattle on start up.

Rick
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From: Mercedes <mercedes-bounces at okiebenz.com> on behalf of Rick Knoble via Mercedes <mercedes at okiebenz.com>
Sent: Saturday, December 20, 2025 8:38:14 PM
To: Mercedes Email List <mercedes at okiebenz.com>
Cc: Rick Knoble <rickknoble at hotmail.com>
Subject: Re: [Mercedes] OT Pre-oiler?

>"Clear flood"?

Foot to the floor while cranking. The computer thinks you are trying to clear an engine flooded with fuel condition and will crank, but not start. It's a way of pressurizing the oil system after an oil change. Years ago some race car builders used to recommend an Accusump oil system. https://www.cantonracingproducts.com/accusump

I suppose for a Ford 5.4 with phaser issues it would help too.

Rick

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