Oil/fuel filter housing

Spindrift · Sep 18, 2012

I just purchased the F350 in my sig. The former owner installed a RR and as part of the mod, deleted the oil/fuel filter housing and replaced it with an oil filter housing from a 6.4L. Never knew this but apparently the 6.4 housing is supposed to be a direct fit.

Towed my trailer last week a total of 500 miles and the oil temps were in the 230* range while the coolant temps were in the low 200*-210* range. The oil cooler was replaced when the stud work was completed so I doubt it's a cooler problem.

I'm thinking that some of the oil is bypassing the cooler.

Has anyone tried this kind of housing swap and what were the results? Thanks.

Pizza pig · Sep 18, 2012

The housing is the same, is it using an oem oil filter cap?

Spindrift · Sep 18, 2012

Yes.

Is there any way to check whether or not the oil is bypassing the regulator?

hawgdoctor · Sep 18, 2012

Not unusual to see that kind of split when pulling. Especially with a modified truck, a 12k trailer behind you. You do anything with the gears yet to get pressure back on the turbo? That will help also by keeping the heat off the pistons. Still have the estimate......

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HeavyAssault · Sep 18, 2012

Is that truck blue??

hawgdoctor · Sep 18, 2012

HeavyAssault said:
Is that truck blue??

Blue and silver to be exact lol.:thumbup:

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HeavyAssault · Sep 18, 2012

LOL...figured. Damn sweet ride. "Some stuff" is an understatement. Any drop when running unloaded?? I'd agree with the towing opinion.

Spindrift · Sep 18, 2012

I've been towing that same load for years with the Ex. Have never seen temperature splits like this and last week wasn't even hot.

Haven't done anything with the gears...as of yet. Still trying to get my arms wrapped around a "somewhat" different ride.

hawgdoctor · Sep 18, 2012

Spindrift said:
I've been towing that same load for years with the Ex. Have never seen temperature splits like this and last week wasn't even hot.

Haven't done anything with the gears...as of yet. Still trying to get my arms wrapped around a "somewhat" different ride.

Lol, yeah she's a tow monster. I know those sticks fuel hard, and think that maybe part of your problem with the temps. Would like to see how it acts with a lowed gear set in it. I think it will really hello that truck just to get a solid load on the turbo, and not relying on the gears so hard.

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Pizza pig · Sep 18, 2012

which truck is this? It would help to know more about it. I know its common in some dmax trucks with compounds that they see hot oil temps while towing and some even daily driving.

Spindrift · Sep 18, 2012

The usual suspects...Warren 175s, Doug's intake, PowerMax with Batmo, PHP Atlas 40 FICM, American Force 22.5s with the aid of a 4.88 rear end. I'm only listing those things that I believe could be contributing to the heat.

The truck really hasn't seen much face time. It was originally built for a transportation business.

windrunner408 · Sep 18, 2012

What are your EGTs and how do they compare to the Excursion?? About the only thing that stands out to me as being different between the two that could do this would be the gearing.

Spindrift · Sep 18, 2012

I spent the entire 500 miles driving by the EGT gauge. I was hitting 1200* on moderate hills in 6th gear. As a rule, I never go over 1200*. In the Ex, I had a hard time hitting 1200* as long as I kept the TC unlocked. With this truck, I needed to constantly unlock the TC and if I didn't lay into the throttle hard, the TC would want to lock up again.

MorganY · Sep 18, 2012

How sure are you it's not the oil cooler? I cruised at 1000° pegged on my egt's with my old GT40, 1lb of boost and my oil and coolant temp delta was 7° (210 and 203 eot, ect)

How heavy is the load?

Spindrift · Sep 18, 2012

Without pulling the cooler I can't be 100% sure but it's a relatively new cooler and the coolant filter isn't plugged.

The load was a little north of 11K.

MorganY · Sep 18, 2012

Ah, Coolant filter (usually) rules that one out.

windrunner408 · Sep 18, 2012

Spindrift said:
I spent the entire 500 miles driving by the EGT gauge. I was hitting 1200* on moderate hills in 6th gear. As a rule, I never go over 1200*. In the Ex, I had a hard time hitting 1200* as long as I kept the TC unlocked. With this truck, I needed to constantly unlock the TC and if I didn't lay into the throttle hard, the TC would want to lock up again.

Ok so you're running higher EGTs with the truck with 175s as compared to an Excursion with 190s right?? Where did you buy your injectors from?? I know their Warren's but did you buy directly from him?? See I would think your EGTs would be lower with the truck than with the Excursion just due the lower 4.88 gearing and that would keep the RPMs up for more air flow. Are you running different tunes on the truck as compared to the Ex?? The Atlas 40 doesn't really stand out IMO as to heavy of a FICM tune for 175s. JMO though.

hawgdoctor · Sep 18, 2012

Younger1993 said:
How sure are you it's not the oil cooler? I cruised at 1000° pegged on my egt's with my old GT40, 1lb of boost and my oil and coolant temp delta was 7° (210 and 203 eot, ect)

How heavy is the load?

Yeah, but at one pound if boost out of that gt 40 your moving twice as much air. The 4.88's in this thing are my biggest concern.

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windrunner408 · Sep 18, 2012

I'm confused here. Why are the 4.88s the concern here?? They provide more gearing which means less load is placed on the engine so it shouldn't have to fuel as hard to go down the road. However, I do see that the engine would be spinning faster than a 3.73 geared truck so do you think that just having higher RPMs would cause higher oil temps?? I'm not entirely sure that this is always the case. Again JMO of course and I would be interested to hear theories/explanations on this.

hawgdoctor · Sep 18, 2012

windrunner408 said:
I'm confused here. Why are the 4.88s the concern here?? They provide more gearing which means less load is placed on the engine so it shouldn't have to fuel as hard to go down the road. However, I do see that the engine would be spinning faster than a 3.73 geared truck so do you think that just having higher RPMs would cause higher oil temps?? I'm not entirely sure that this is always the case. Again JMO of course and I would be interested to hear theories/explanations on this.

,he biggest thing with the gears is the fact that they do you make all he load off the motor. Hence his egg issues, higher oil temps, its because there is no drive pressure left for the turbo. It will pull so fast through the gears it pegs the egt gauge in a matter of seconds. Now granite it dies cool back Down very fast, but you that has always been something I've tried to address earlier too. Was just a matter of money for the previous owner. It was in the agenda just never got checked off. Personally j wouldn't of gone over 4.30's with this truck, but I didn't do the original gearing anyway. Someone else sold him that unfortunately, but that was also before anyone offered 4.30's for the Dana 60 axles.

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