Builds Big Red Toy (10 Viewers)

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You mean Rosmellya. That oil for some reason has a distinctive smell for the first 500 or so miles after an oil change. I bought it on sale for my Dodge 3500 and had a nasty burnt oil smell. Researched it and found it was known for this. After about 500 miles it was gone. Did you notice this with the 4BT?

I haven't used it since before my last deployment, I don't remember it having a smell. I spilled gear oil once in the trunk area, stank up the truck for a long time, that may have masked it.
 
Picked up my other toy. She got a new clutch, Freon recharge, valve adjustments and a few other little things. She had the original clutch from 31 years ago, the one with the rubber center. The new one has springs and feels so much smoother.

These were a few of the other cars at the shop.
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Wide body turbo.
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I got her home and decided to take off the muffler and add the cat bypass pipes I bought. She's so much louder and even more responsive. She's louder than big red. My neighbors officially hate me even more because I was done late at night and test drove it.
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I need to figure out how to cut this spacer down a hair, while keeping it straight so I can refit the mechanical fan. Any ideas?

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Right now it fits but will flex into the electrical fans when spinning.
 
How much off? I might be able to do it. What's the diameter of the spacer? Need to check if I can chuck it up on the mill vise.
 
It's 3 inches wide. I might need to take off 1/8 of an inch. If that fan combo doesn't keep the engine cool at highway speeds I don't know what will.
 
It's 3 inches wide. I might need to take off 1/8 of an inch. If that fan combo doesn't keep the engine cool at highway speeds I don't know what will.
Adjusting timing, seriously.
Or a larger radiator....
Cooling at highway speed, is more airflow than fans could ever produce.
 
Adjusting timing, seriously.
Or a larger radiator....
Cooling at highway speed, is more airflow than fans could ever produce.
I started looking for larger radiators that would fit, but so far I came up with nothing. I don't want to adjust timing just yet because I finally have the egt under control.
 
I started looking for larger radiators that would fit, but so far I came up with nothing. I don't want to adjust timing just yet because I finally have the egt under control.
I understand your resistance/hesitation to tinker with pump timing.

For reference, my 3.9L 4cyl turbo diesel runs cool all the time. With my foot on the floor at 80+ miles an hour the temp gauge reads about 1/3rd. I can run AC in traffic and I never have to think about engine temp. I DO watch my EGTs, and should dile my pump back a bit.
My rig is not as built or heavy as yours, but these engines are designed to pull 14000lb bread trucks around all day.

The only other thing I can think of, is your by-turbo is just asking too much from your cooling system. IIRC this is about when your cooling troubles began. But others have done this with success, so...

I keep mentioning the timing because it's something you can do without throwing $$ and parts at the situation.
Good luck, thanks for the updates!
 
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I understand your resistance/hesitation to tinker with pump timing.

For reference, my 3.9L 4cyl turbo diesel runs cool all the time. With my foot on the floor at 80+ miles an hour the temp gauge reads about 1/3rd. I can run AC in traffic and I never have to think about engine temp. I DO watch my EGTs, and should dile my pump back a bit.
My rig is not as built or heavy as yours, but these engines are designed to pull 14000lb bread trucks around all day.

The only other thing I can think of, is your by-turbo is just asking too much from your cooling system. IIRC this is about when your cooling troubles began. But others have done this with success, so...

I keep mentioning the timing because it's something you can do without throwing $$ and parts at the situation.
Good luck, thanks for the updates!

The turbos are definitely asking too much of the radiator. I have a thermostat that opens at 180 instead of the 190 that's currently in there. Once I get some time I'm going to change it out to see if that helps out at all. I'm no longer going to spend money on parts, the other toy set me back quite a bit. I might retard the timing by a few degrees, but first I want to see if I can get it any cooler with the additional fan.
 
Let's check a couple things:
Next time it heats up, squeeze a rad hose, is it super hard, like, harder than a basketball, or bike tire?

Once its cooled down, like, stone cold, squeeze the hose, is there pressure? Open the rad cap. Is there residual pressure excaping as you open the cap?

I ask all this, because, the one time my rig did get hot and bothered was when I was pushing too much boost and had not retourqued my cyl head. I was pushing combustion gases through the head gasket and into the cooling system. It would only do this under load and was very confusing before I got to the bottom of it.

Again, for comparison, I am running stock fj62 radiator, and no fan shroud. My mechanical fan is 10" or so away from the rad and is basically ineffective. I've never had a need to improve it.

So, what I'm getting at is maybe you're pushing boosted compression gas into the cooling system, thus over pressurising it, thus increasing temp while on the highway, under load.
 
Let's check a couple things:
Next time it heats up, squeeze a rad hose, is it super hard, like, harder than a basketball, or bike tire?

Once its cooled down, like, stone cold, squeeze the hose, is there pressure? Open the rad cap. Is there residual pressure excaping as you open the cap?

I ask all this, because, the one time my rig did get hot and bothered was when I was pushing too much boost and had not retourqued my cyl head. I was pushing combustion gases through the head gasket and into the cooling system. It would only do this under load and was very confusing before I got to the bottom of it.

Again, for comparison, I am running stock fj62 radiator, and no fan shroud. My mechanical fan is 10" or so away from the rad and is basically ineffective. I've never had a need to improve it.

So, what I'm getting at is maybe you're pushing boosted compression gas into the cooling system, thus over pressurising it, thus increasing temp while on the highway, under load.
That is a great tip, thanks. I'll check it the next time it heats up. It's time to retorque the head studs anyway.
What's your average ambient temperature? In the summer it's been in the 3 digits which made it worse.
 
I took my son to our first ever Porsche club meeting. We decided it would be a fun drive and see what it's all about. It rained heavily which made many not show up, but even then, there were quite a number of Porsches there.

My son was easily the youngest person there, and the chapter president decided to put him on the spot during the announcements and ask him what his favorite car is. Alex, not knowing any better looked at me and proudly and loudly said it's the land cruiser.
I was both proud and embarrassed by his answer.
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Next week there is the first annual Autobahn Icon at a central Texas distillery. I might go to see the classics.

Tomorrow if the weather holds up , I'm going to retorque the head studs on big red and check the torque on the wheel spacers.
 
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That is a great tip, thanks. I'll check it the next time it heats up. It's time to retorque the head studs anyway.
What's your average ambient temperature? In the summer it's been in the 3 digits which made it worse.
It's not TX hot here, true enough.
Curious to see your report as things cool off.

As the Porsche club gets to know you, you'll all look back at your son's comment with pride and joy.
Way to make an impression! :cheers:
 
It's not TX hot here, true enough.
Curious to see your report as things cool off.

As the Porsche club gets to know you, you'll all look back at your son's comment with pride and joy.
Way to make an impression! :cheers:

I'm still laughing about it and yes I'm a proud daddy.

Not much was accomplished today, I retorque the wheel spacers and cleaned out another birds nest that was hidden in the bumper this time. I didn't get to the head bolts because i can't find my other torque wrench. I also ordered another destaco clamp , thanks to @reevesci for getting me the part number so quickly.

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I haven't shared this yet on my thread but the short story is that I finally ran out of cooling capacity with the 60's radiator. I installed my AC this summer and that along with running 40s and 4.10s changed the whole dynamic and I was running hot everywhere. The reduced air flow from the condenser up front in my cooling row and the added heat when the AC was running put it over the top and engine temps and EGTs went up. I solved the hot engine with a bigger aluminum dual pass radiator that caused a bit of rework of the whole cooling system but afterwards I was able to run 185-190F with the AC on cruising 70mph in 95F plus heat on flat ground. Uphills it will still warm up so the next fix I am currently working on is to regear my diffs.
 
I haven't shared this yet on my thread but the short story is that I finally ran out of cooling capacity with the 60's radiator. I installed my AC this summer and that along with running 40s and 4.10s changed the whole dynamic and I was running hot everywhere. The reduced air flow from the condenser up front in my cooling row and the added heat when the AC was running put it over the top and engine temps and EGTs went up. I solved the hot engine with a bigger aluminum dual pass radiator that caused a bit of rework of the whole cooling system but afterwards I was able to run 185-190F with the AC on cruising 70mph in 95F plus heat on flat ground. Uphills it will still warm up so the next fix I am currently working on is to regear my diffs.
What's aluminum radiator did you use?
 
Get the 3 row Champion. You could get it with the fan kit too but you just got fans. I should have got that combo. I’m not compound turboed and don’t use A/C. Also have a huge intercooler which will help keep the motor cooler.
 
What's aluminum radiator did you use?

I used a:

AFCO 80126N Double Pass Racing Radiator 31 Inch Wide, 1-1/2 Inch Inlet

Picked it up off of ebay. There was cutting and re-positioning involved to get this to fit. I couldn't just drop it in.

Factory FJ60-62 radiator size I calculated at 377sq. in. The one I used is 506sq.in. Of course now that it's cooling off my temps are struggling to reach 180F cruising on the highway. I'll most likely be blocking off some airflow when the temps dip lower and/or get a hotter thermostat.
 

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