531 heads

tlock0331 · Nov 8, 2019

All the turbo parts i am going to put on my 5020 is coming off of a 7520. Complete engine, i would like to get the head redone as well since i am tearing this down, question is, would that 7520 head be better than the existing 5020 head? if so, why? I have not looked up part numbers in the books on them, so i dont know if they carry the same p/n but i am assuming they dont.

Anyway, i turn to those who are much smarter than i. Thanks again!

Mike M · Nov 8, 2019

Be very careful with the turbo. I think many guys burnt up or blowed engines running them too "hot"
Too much power can also be hard on the rear end gears. I think later models had beefed up gears.
A local tractor jockey once said 5010 and maybe 5020 ? held the worlds record for the connecting rod toss. lol.

buickanddeere · Nov 8, 2019

Most 531 and 619 failures were due to the loss of oil pressure . A Murphy switch is essential.
Why not transplant the entire 7520 engine instead of pieces ?

tlock0331 · Nov 8, 2019

lol just because one tractor jockey saw one 5010/20 throw a rod doesnt make me think that its an issue. I have had our original 5010 for way more years pulling an appropriate sized disk with duals and logged a lot of hours....

So....back to the question about the head....any thoughts?

B&D - the engine in the 7520 was a "fresh overhaul at deere and within 10 hours of being back at the farm the hired hand got it hot", it would run, but no power and that was at least 10-12 years ago. I would have just swapped the engine if that was an option.....and this pump is mechanical, not powered, so murphy switch would only be an indicator....

So back to the original question......is there advantage to running the 7520 head on the 5020 era 531....if one head is going to get redone.

SVcummins · Nov 8, 2019

Never heard of a 5020 losing a connecting rod . Could it be the local jockey was once a salesman for case ?

JD Dave · Nov 8, 2019

The 531 issues are not an inherent problem. Ninety percent of failures are from operator and service failures not engineering problems. Our 5010 is worked hard. It's the original engine and never been
apart. That being said it always has clean, modern oil and not worked beyond its designed ability.

tim s · Nov 8, 2019

I'm thinking no advantage,,just which ever one is in better condition...If i was going to do a transplant i would prefer a 619 out of a 50 series,,it would have a crank driven oil pump.I have done this swap a few times.. But I fully understand using what you have available...

buickanddeere · Nov 8, 2019

(quoted from post at 14:55:03 11/08/19) lol just because one tractor jockey saw one 5010/20 throw a rod doesnt make me think that its an issue. I have had our original 5010 for way more years pulling an appropriate sized disk with duals and logged a lot of hours....

So....back to the question about the head....any thoughts?

B&D - the engine in the 7520 was a "fresh overhaul at deere and within 10 hours of being back at the farm the hired hand got it hot", it would run, but no power and that was at least 10-12 years ago. I would have just swapped the engine if that was an option.....and this pump is mechanical, not powered, so murphy switch would only be an indicator....

So back to the original question......is there advantage to running the 7520 head on the 5020 era 531....if one head is going to get redone.

The Murphy switch powers a horn loud enough and a warning light bright enough that no semi conscious operator could ignore .

Bob · Nov 8, 2019

(quoted from post at 21:13:08 11/08/19)

(quoted from post at 14:55:03 11/08/19) lol just because one tractor jockey saw one 5010/20 throw a rod doesnt make me think that its an issue. I have had our original 5010 for way more years pulling an appropriate sized disk with duals and logged a lot of hours....

So....back to the question about the head....any thoughts?

B&D - the engine in the 7520 was a "fresh overhaul at deere and within 10 hours of being back at the farm the hired hand got it hot", it would run, but no power and that was at least 10-12 years ago. I would have just swapped the engine if that was an option.....and this pump is mechanical, not powered, so murphy switch would only be an indicator....

So back to the original question......is there advantage to running the 7520 head on the 5020 era 531....if one head is going to get redone.

Click to expand...

The Murphy switch powers a horn loud enough and a warning light bright enough that no semi conscious operator could ignore .

Gosh Buick, Massive Furguson combines used a Murphy solenoid valve to cut off fuel to to the I.P. in case or overheat or loss of oil pressure. NO horn or operator attention was needed.

I'm sure that setup was used on a wide variey of engines besides that.

Cutoff/stop wasn't instant, but took a couple of seconds. WAY better than nothing!

Murphy solenoid valve was overridden during cranking.

fdt860 · Nov 9, 2019

(quoted from post at 20:05:58 11/08/19)

(quoted from post at 21:13:08 11/08/19)

(quoted from post at 14:55:03 11/08/19) lol just because one tractor jockey saw one 5010/20 throw a rod doesnt make me think that its an issue. I have had our original 5010 for way more years pulling an appropriate sized disk with duals and logged a lot of hours....

So....back to the question about the head....any thoughts?

B&D - the engine in the 7520 was a "fresh overhaul at deere and within 10 hours of being back at the farm the hired hand got it hot", it would run, but no power and that was at least 10-12 years ago. I would have just swapped the engine if that was an option.....and this pump is mechanical, not powered, so murphy switch would only be an indicator....

So back to the original question......is there advantage to running the 7520 head on the 5020 era 531....if one head is going to get redone.

Click to expand...

The Murphy switch powers a horn loud enough and a warning light bright enough that no semi conscious operator could ignore .

Click to expand...

Gosh Buick, Massive Furguson combines used a Murphy solenoid valve to cut off fuel to to the I.P. in case or overheat or loss of oil pressure. NO horn or operator attention was needed.

I'm sure that setup was used on a wide variey of engines besides that.

Cutoff/stop wasn't instant, but took a couple of seconds. WAY better than nothing!

Murphy solenoid valve was overridden during cranking.

Yes, Moodels fitted with this are grey cabbed 750, 760 and all 850 and 860. there was also an "override switch" that you had to permeanently press to "get out of the railroad tracks".

Now, external electric shutt off solenoids that connects to mecanical pumps are easily available. Fitted to P7100 pumps fitted to trucks.

c07c45b2-deb9-477d-872b-82fb704c0b5b_1.9f88469f82f3e6b7ad075ee0f750eba2.jpeg

GreenEnvy · Nov 9, 2019

Is it the original engine for sure??? Every 5010 I?ve ever been around including our own has a 5020 engine. After the 5020s came out JD initiated a program to update 5010 engines to 5020 engines similar to when they had to update the 4520 engines.

tlock0331 · Nov 9, 2019

TimS, thats kinda what i figured, but i wasnt sure if there were any better flow characteristics on the 7520 head vs the 5020 head. Ill probaby use the 7520 head since i can have that done and sit on the shelf till i am ready to put all the upgrades on the 5020 and hopefully reduce down time over all.

GreenEnvy, as far as i know its the original 5010 engine that i grew up on. The 5020 i am gonna rework is the original and to my knowledge never been opened up.

GreenEnvy · Nov 9, 2019

I was asking JD Dave but I?ll ask you too. How much oil does
your 5010 engine hold?

newgenjdcollector · Nov 11, 2019

(quoted from post at 07:30:43 11/08/19) All the turbo parts i am going to put on my 5020 is coming off of a 7520. Complete engine, i would like to get the head redone as well since i am tearing this down, question is, would that 7520 head be better than the existing 5020 head? if so, why? I have not looked up part numbers in the books on them, so i dont know if they carry the same p/n but i am assuming they dont.

Anyway, i turn to those who are much smarter than i. Thanks again!

What kind of air intake/filter setup do you plan to use? The 5020 has the scv's in front of the dash on the left side and makes it hard to implement the 7520/6030 style air cleaner toward the back of the hood. There might be room,but I kinda doubt it wth the intercooler there.

Now if you could find a top plate off a 6030, you could make it a true side console with the scv's on the back and thus eliminate the valves in front of the dash.

tlock0331 · Nov 11, 2019

newgenjdcollector, not gonna lie, havent even gotten that far, i figured i could scab everything off the 7520, now i do know of a parts 6030 that may have that. again, this is all figuring out once i get rolling with it all. so im open to suggestions haha

531 heads

tlock0331

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Mike M

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buickanddeere

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tlock0331

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SVcummins

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JD Dave

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tim s

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buickanddeere

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Bob

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fdt860

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GreenEnvy

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tlock0331

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GreenEnvy

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tlock0331

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