7530 engine rebuild and improvements :-)

kill

Member
Livestock Farmer
Location
South West
Would there be any point in doing the derv doctor treatment (ditching the egr) on a JD 6430 premium guys?

Its on its second egr unit as burning coolant sooted it up when head gasket went. 4400 hours on it presently.
Cheaper than a new egr valve and tractor would run cooler and smoother so yes and a 4 cylinder erg is meant to be arkward to do
 

sws

Member
Location
Leicestershire
We had derv doc do a jd 6830 for us it run`s a lot cooler, less fuel pulling a 14t dump trailer now its around the 12L instead off the 18-21L previous. a lot quieter when started no diesel knock whilst cold. pulls like a train on the trailer work at the moment waiting too try it on the 5f plough. Cheaper than having an EGR fitted. would recommend (y)
 
You won't look back!
Did our 6430p over 2yrs ago, utterly transformed it, max torque available from 1400rpm all the way to 2300rpm. Obviously peak fuel use is higher, gone from 27.6l/h peak pre remap to 33.6l/h so if you were slogging away at peak load all day it would use more fuel.
But as an example, on our plough, a Kuhn 4f variwidth autoreset, pre remap on our hills it was on its knees uphill flat out at 3.5km/h, now it will pull uphill at 8km/h at 1400rpm using significantly less fuel.
I think we were told it had about a 40hp boost over standard though!
 

Timbo

Member
Location
Gods County
You won't look back!
Did our 6430p over 2yrs ago, utterly transformed it, max torque available from 1400rpm all the way to 2300rpm. Obviously peak fuel use is higher, gone from 27.6l/h peak pre remap to 33.6l/h so if you were slogging away at peak load all day it would use more fuel.
But as an example, on our plough, a Kuhn 4f variwidth autoreset, pre remap on our hills it was on its knees uphill flat out at 3.5km/h, now it will pull uphill at 8km/h at 1400rpm using significantly less fuel.
I think we were told it had about a 40hp boost over standard though!

Pretty much exactly as I have found (6630). It's a different tractor in everyway. £500 cost has been recouped in one year of fuel saving.
 

CORK

Member
You won't look back!
Did our 6430p over 2yrs ago, utterly transformed it, max torque available from 1400rpm all the way to 2300rpm. Obviously peak fuel use is higher, gone from 27.6l/h peak pre remap to 33.6l/h so if you were slogging away at peak load all day it would use more fuel.
But as an example, on our plough, a Kuhn 4f variwidth autoreset, pre remap on our hills it was on its knees uphill flat out at 3.5km/h, now it will pull uphill at 8km/h at 1400rpm using significantly less fuel.
I think we were told it had about a 40hp boost over standard though!

Sounds very impressive to be fair.

I wouldn't mind adding say 15hp onto our 6430p but not keen on doing much more as wouldn't want to overdo strain on the powertrain.
I really do like the idea of a cooler running engine lasting longer ......
 

Timbo

Member
Location
Gods County
Sounds very impressive to be fair.

I wouldn't mind adding say 15hp onto our 6430p but not keen on doing much more as wouldn't want to overdo strain on the powertrain.
I really do like the idea of a cooler running engine lasting longer ......

Its not about the power, its the torque delivery that is massively improved.
 

Blue.

Member
Livestock Farmer
I'm interested in what anyone else has done when they remove egr cooler, took me a good hour of umming and arrrring to decide to knock the seal out and as luck would have it found a tap and didn't even have to drill it out just sent the tap down

I'm going to fit an angle bracket to hold the pipe into the seal.
image.jpeg
I presume you just piped into the outlet pipe of the cooler with your go faster blue pipe?


I'm not going to remove my manifold,I'm just going to butcher the cooler in situ.:eek:
 

Blue.

Member
Livestock Farmer
I'm going to fit an angle bracket to hold the pipe into the seal.View attachment 277666 I presume you just piped into the outlet pipe of the cooler with your go faster blue pipe?


I'm not going to remove my manifold,I'm just going to butcher the cooler in situ.:eek:

If you shorten the lower pipe from the cooler (I cut mine with the recip as I'm connecting back onto it with a silicone tube) it just comes out the back in one piece,I'm not sure who told me the manifold and turbo had to be removed to get it off.:banghead:
image.jpeg
Best place for it!


I hope this leaking is the cause of my loss of coolant,will be doing some :scratchhead: if it doesn't stop dropping.
 
If you shorten the lower pipe from the cooler (I cut mine with the recip as I'm connecting back onto it with a silicone tube) it just comes out the back in one piece,I'm not sure who told me the manifold and turbo had to be removed to get it off.:banghead:View attachment 277844Best place for it!


I hope this leaking is the cause of my loss of coolant,will be doing some :scratchhead: if it doesn't stop dropping.

Yes tis the best place for it :ROFLMAO: angle bracket I thought about that and then thought do it once do it right plus mine was in bits at the time so it wasn't much work to tap the housing, mines going grand need to do the front crank seal and pull the trumpets off for inspection of final drives/brakes before summer:)
 

Blue.

Member
Livestock Farmer
Yes tis the best place for it :ROFLMAO: angle bracket I thought about that and then thought do it once do it right plus mine was in bits at the time so it wasn't much work to tap the housing, mines going grand need to do the front crank seal and pull the trumpets off for inspection of final drives/brakes before summer:)

I just don't want to remove the housing to tap it out,I see the derv doctor just puts a blank nut in the hole,but I think that's when he fits a normal turbo.
image.jpeg
 

Mursal

Member
A blank in the coolant hole?
Where does the coolant go after the EGR cooler, didn't think you could just blank the coolant off, had to be joined?
You might get a tap in if you press a nut over the top, and use a spanner to turn it. That's if if the angle bracket doesn't work out.
 
A blank in the coolant hole?
Where does the coolant go after the EGR cooler, didn't think you could just blank the coolant off, had to be joined?
You might get a tap in if you press a nut over the top, and use a spanner to turn it. That's if if the angle bracket doesn't work out.

Think you'd be ok on a non vgt turbo, it's the water feed for the turbo actuator you need to retain on normal vgt turbo tractors
 

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Red Tractor drops launch of green farming scheme amid anger from farmers

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As reported in Independent


quote: “Red Tractor has confirmed it is dropping plans to launch its green farming assurance standard in April“

read the TFF thread here: https://thefarmingforum.co.uk/index.php?threads/gfc-was-to-go-ahead-now-not-going-ahead.405234/
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