[Fot] Oil Cooler or Oil filter first?

[Rocky Entriken]

Any bad stuff in the oil lines is gonna originate in the engine, so make the filter the first stop (and usually the shortest line). Then the cooler. And what nobody else mentioned, a check valve after the cooler before it goes back to the engine (keeps oil from flowing backwards into cooler, say on start-up.) My Accusump is plumbed into a Tee that’s just before the engine inlet – what goes to the Accusump is filtered and cooled oil, and what comes from the Accusump goes only to the engine because the check valve prevents it going the other way.

And yeah, coolers are cheap. If I’m concerned I’ll flush out the lines (self-service car wash does the trick, use high-pressure rinse), but buy a new cooler.

--Rocky
From: barry rosenberg via Fot 
Sent: Monday, December 3, 2018 7:27 AM
To: fubog1 ; Phil Gott 
Cc: fot at autox.team.net 
Subject: Re: [Fot] Oil Cooler or Oil filter first?

Yes, filter first. But what I have run into on some customers cars is the way the cooler lines run. Most coolers are mounted with the fittings on top. This does not permit the cooler to drain and when you change your oil, the cooler retains the old oil. You have to remove the cooler and at least one line to drain the old oil out. Try to set your cooler a little high with the fitting on the bottom so it can self drain. Of course, this means you must pre-lube the engine before startup. I also set my cooler behind the radiator and not in front. NASCAR experts say that the closer the oil and water temp are to each other, the better. 


Barry

On Monday, December 3, 2018, 8:02:15 AM EST, Phil Gott via Fot <fot at autox.team.net> wrote: 


Filter first. Keeps the crud out of the cooker. Coolers are hard to clean. Good thought By Glen to replace the cooker on engine refreshing.  
With a cooler in the system, also a good idea to prelube the engine with an Accusump upon cold start. Oil cooler lines are long and may drain upon standing a while.


Sent from my iPhone

On Dec 3, 2018, at 7:02 AM, fubog1 via Fot <fot at autox.team.net> wrote:


  I typically run an inspectable (Oberg) out of the engine before the cooler, and a second filter after the cooler.
  It may be overkill but it eliminates the possibility of oil cooler trash getting in the engine.
  I also replace the cooler @ every engine freshen-up.
  Glen



  -----Original Message-----
  From: Bud Rolofson via Fot <fot at autox.team.net>
  -To: FOT <fot at autox.team.net>
  Sent: Mon, Dec 3, 2018 2:51 am
  Subject: [Fot] Oil Cooler or Oil filter first?


  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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