Benefit to higher flow oil jets? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 31 (permalink) Old 09-15-2009, 05:42 AM Thread Starter
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Benefit to higher flow oil jets?

I have about 1600-1700 miles on my engine now, and in preparation for pulling last weekend i changed the oil... Let it all drain and tapped the pan, and sure enough there is something bouncing around in there. Gotta be an oil jet, or two. I had this happen last time, so i welded them up.. and guess the lowest mig setting was more than the material could take, stressed it and they eventually broke off.. I have been putting off pulling the engine for a few reasons, it seems like it's almost as easy pulling the dang thing out in a few hours, fixing whatever is needed, then putting it back in. I have a seeping freeze plug on the rear of the passenger head, i made a bad decision by putting B-quiet soundproofing/insulation on the oil cooler closest to the header area, now the oil temperature runs 210-230 all the damn time. Now i have a good reason to pull it all out and fix these with one stone. My question is, while i am in there, is there a benefit to increasing the flow through the jets with a process such as extrudehoning them? I see pretty hot EGT's and i know extra oil will always help.


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post #2 of 31 (permalink) Old 09-15-2009, 01:45 PM
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Re: Benefit to higher flow oil jets?

It seems like protecting the oil cooler from the headers isn't a bad idea. They do look a bit close. Maybe a heat sheild instead, like on a gasser manifold.

Were you able to use your block heater? Mine was really close, so I left it off.

What injectors and oil are you using?

Shoot me a PM about your LS. I may have a buddy that would be interested.

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post #3 of 31 (permalink) Old 09-15-2009, 01:55 PM
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Re: Benefit to higher flow oil jets?

Leave the jet orifices alone. You could merely turn them from a nice jet, into a gurgling mess that barely hits the piston at all.

And you could completely encase the oil cooler in concrete if you wish, the heat is transferred via convection inside the cooler from oil to coolant directly. Any heat radiated through the case is immaterial to it's operation. If it isn't working properly then the cooler is likely clogged in some way.
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post #4 of 31 (permalink) Old 09-15-2009, 01:55 PM
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Re: Benefit to higher flow oil jets?

Getting ready for the Buck, huh? You pulling on the 26th?

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post #5 of 31 (permalink) Old 09-15-2009, 01:59 PM
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Re: Benefit to higher flow oil jets?

So - you want yet again increase the oil volume demand on an engine that is oil starved to begin with?.......

Ironically - I plan on blocking the jets off completely in my rebuild and changing the tolerances and engine setup accordingly......I've seen it done on other motors with great success, just not on a PSD.

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post #6 of 31 (permalink) Old 09-15-2009, 07:51 PM
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Re: Benefit to higher flow oil jets?

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Originally Posted by HotRodTractor View Post
So - you want yet again increase the oil volume demand on an engine that is oil starved to begin with?.......

Ironically - I plan on blocking the jets off completely in my rebuild and changing the tolerances and engine setup accordingly......I've seen it done on other motors with great success, just not on a PSD.

So you don't plan on "towing" any farther than 300ish feet at a time? Maybe as far as 1320 feet at the most?

lol.
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post #7 of 31 (permalink) Old 09-15-2009, 07:59 PM
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Re: Benefit to higher flow oil jets?

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So you don't plan on "towing" any farther than 300ish feet at a time? Maybe as far as 1320 feet at the most?

lol.
Hmmm. Guess your right as always. It can't possibly work that way.

I have seen it done with proper clearances and the motor live a happy and healthy life - I just wouldn't do it with Mahle pistons.

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post #8 of 31 (permalink) Old 09-15-2009, 08:15 PM
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Re: Benefit to higher flow oil jets?

so how would you set it up to do it? and what pistons?

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post #9 of 31 (permalink) Old 09-15-2009, 08:17 PM
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Re: Benefit to higher flow oil jets?

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Originally Posted by HotRodTractor View Post
Hmmm. Guess your right as always. It can't possibly work that way.

I have seen it done with proper clearances and the motor live a happy and healthy life - I just wouldn't do it with Mahle pistons.

What are you talking about? I was merely making reference to the fact that you will not be towing with this truck. Or will you?

If you just want to be a smart ass..... then when you get done, why don't you hook it to your gooseneck and take 20,000 or so odd lbs down the interstate at ~70mph for a couple hours just to spite me?
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post #10 of 31 (permalink) Old 09-15-2009, 08:32 PM
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Re: Benefit to higher flow oil jets?

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What are you talking about? I was merely making reference to the fact that you will not be towing with this truck. Or will you?

If you just want to be a smart ass..... then when you get done, why don't you hook it to your gooseneck and take 20,000 or so odd lbs down the interstate at ~70mph for a couple hours just to spite me?
Yes I will be towing with this truck - and yes I have seen it done - although it was not in a PSD. The guy pulls it, pulls trailer with it, uses it around the farm, etc. Ross pistons, gapless rings, correct piston to bore clearances. The pistons will slap like hell until its warmed up and will probably need to be replaced after 20-30K miles. But I also personally think that when you are pushing these motors that hard that they need to be looked at for a refresh once in a while.

Towing a trailer with it sounds like one hell of a plan. You wanna ride shot gun so I can tell ya I told ya so when we get to our destination? I would like the opportunity for some live feedback on that one.

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