[Fot] Was: Oil Cooler or Oil filter first? Now how to ID flow out the adapter?

[Bud Rolofson]

List,

Thanks to all who responded about this. The consensus was to go to the oil filter first to catch as much debris as possible before it collects in the oil cooler. Everyone said with an exploded engine (like I experienced) replacing the oil cooler is a requirement.

So I did replace the oil cooler after blowing up the engine, but TWICE I’ve had them ($160 Earl’s oil coolers) blow out and leak all over the engine bay when doing a test and tune day at the track. I’m on my third oil cooler and trying to reduce the oil pressure that on my gage says 85-90 psi to see if that is what is causing the coolers to leak, although they are rated at 150 psi or more. I put an extra copper washer on the oil pressure relief valve but I’m not sure what is really causing two oil coolers to blow out. Bad luck? Coincidence? Bad parts?  I’m getting tired of oiling/cleaning my engine bay. I’ll find out if my washers help on the next track day cause it has happened after 4-5 laps the last two times when I was breaking in new rings. Unfortunately the next track day could be a couple more months.

So the next question I have is how to know which way the flow is out of the adapter on the engine. See pic below and please tell me if the oil is coming OUT of engine from the right or left fitting in the picture. There are absolutely no markings or clues to tell me.

Also do most of you measure oil temp on the oil coming out or going into the engine?

Thanks
Bud

> On Dec 3, 2018, at 8:39 AM, Kas Kastner <kaskastner at gmail.com> wrote:
> 
> Go to the filter first so any junk in the oil does not contaminat the cooler which is almost impossible to lean completly. If you ever have any engine serious problem  and the oil goes to the cooler first you can count on having to replace it also.
> Never be beaten by equipment.
> 
> 
> 
> On Sun, Dec 2, 2018 at 11:38 PM Bud Rolofson via Fot <fot at autox.team.net <mailto:fot at autox.team.net>> wrote:
> Listerati,
> 
> For those of you running a remote oil cooler and remote oil filter do you run the hose coming OUT of the engine into the cooler first or the filter first? Just wanted to see how and why (if there’s a reason) most run their lines.
> 
> Thanks
> Bud
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