JCB 530-70 hard start

[Smeh]

So changed then fuel filter on it the last day because was getting hard started, and filter was dirty.

Come next day it's still hard started not as long cranking time...I took off the filter'checked etc bled the fuel lines etc.
Cranks for long time but will start' when been started it's fine throughout the day or if sat for few hours might take a small crank to go.

Only conclusion I can thing is fuel is leaking back out? (Could stick non return valve if on if is)
Or is there a problem of this happening' need help.

 

[icanshootwell]

Have you tried blowing air back down the fuel line into the fuel tank?

 

[Spud]

Has it a standard starter motor? We fitted an Iskra high speed starter to our 530, transformed it. @ACEngineering

 

[Brisel]

Before cranking it over, leave the ignition on for a few seconds so the electric fuel pump on top of the primary fuel filter has a chance to fill the pipework. You should hear it buzzing when you turn the ignition on.

 

[ACEngineering]

Before cranking it over, leave the ignition on for a few seconds so the electric fuel pump on top of the primary fuel filter has a chance to fill the pipework. You should hear it buzzing when you turn the ignition on.

530-70 is old school i think, no electric lift pump?

 

[Richy12]

We have a 54 reg 530-70, this happened us twice.

1st was fuel lift pump
2nd was cracked filter housing/tube going onto hose

It is going good now but could really do with a stop solenoid

 

[ACEngineering]

So changed then fuel filter on it the last day because was getting hard started, and filter was dirty.

Come next day it's still hard started not as long cranking time...I took off the filter'checked etc bled the fuel lines etc.
Cranks for long time but will start' when been started it's fine throughout the day or if sat for few hours might take a small crank to go.

Only conclusion I can thing is fuel is leaking back out? (Could stick non return valve if on if is)
Or is there a problem of this happening' need help.

I dont know JCB like i know manitou but i guess a 530-70 is old pre electric lift pumps.
Replace the mechanical lift pump, check fuel lines back to tank.
Clean tank
Replace the fuel filler neck hose if perished, (these are sh!t on the newer models, very old ones had better thicker rubber) nicely positioned to get all the mud and water thrown off the rear wheel?

Clean the fuel sediment bowl next to the cab step, should have a mesh filter in it too, check the bowl for distortion as it could be sucking air.

and as said make sure its cranking the engine nicely with out struggling, nothing worse than slow cranking.

 

[ACEngineering]

We have a 54 reg 530-70, this happened us twice.

1st was fuel lift pump
2nd was cracked filter housing/tube going onto hose

It is going good now but could really do with a stop solenoid

if you think it wants a stop solenoid because the engine is running on after you turn key off your wrong! this is a common fault with the delphi injector pump and is the latch valve faulty.

And i could be wrong but i would think a 530-70 was stopped production in about late 2002? after that it became the 531-70 and for a short time had the 1100 perkins engine with the crap electric lift pump, now replaced with a better version from perkins but plenty of aftermarket junk ones about

 

[ACEngineering]

So changed then fuel filter on it the last day because was getting hard started, and filter was dirty.

Come next day it's still hard started not as long cranking time...I took off the filter'checked etc bled the fuel lines etc.
Cranks for long time but will start' when been started it's fine throughout the day or if sat for few hours might take a small crank to go.

Only conclusion I can thing is fuel is leaking back out? (Could stick non return valve if on if is)
Or is there a problem of this happening' need help.

If i'm wrong and yours does have the later 1100 series engine then it will have the perkins electric lift pump/filter unit. These are well known for failing.

 

[Dave W]

Pretty sure those have a gauze in the end of the auction pipe that goes down into fuel tank. They are only small and block really easily.
Plant hire place I was at used to remove them all from day 1.
Unfortunately it's a tank off job to do it.

 

[Richy12]

if you think it wants a stop solenoid because the engine is running on after you turn key off your wrong! this is a common fault with the delphi injector pump and is the latch valve faulty.

And i could be wrong but i would think a 530-70 was stopped production in about late 2002? after that it became the 531-70 and for a short time had the 1100 perkins engine with the crap electric lift pump, now replaced with a better version from perkins but plenty of aftermarket junk ones about

I think the 530-70 was made until late 05?

Ours is the perkins turbo engine. Is the latch valve a pump off job?

 

[Northeastfarmer]

Have you cleaned the glass bowl out next to the battery

 

[Dave W]

There's also an often missed gauze in the top Of lift pump

 

[roscoe erf]

Before cranking it over, leave the ignition on for a few seconds so the electric fuel pump on top of the primary fuel filter has a chance to fill the pipework. You should hear it buzzing when you turn the ignition on.

is this pump working

 

[Goweresque]

My 530-70 was always a sluggish starter from cold, a new high geared starter from @ACEngineering solved that........

The same starters have also solved starting problems on my Manitou, 4 cylinder MF35 and Case 5140

 

[roscoe erf]

if you think it wants a stop solenoid because the engine is running on after you turn key off your wrong! this is a common fault with the delphi injector pump and is the latch valve faulty.

And i could be wrong but i would think a 530-70 was stopped production in about late 2002? after that it became the 531-70 and for a short time had the 1100 perkins engine with the crap electric lift pump, now replaced with a better version from perkins but plenty of aftermarket junk ones about

got a 2005 here

 

[roscoe erf]

530-70 is old school i think, no electric lift pump?

its got a electric fuel pump

 

[roscoe erf]

i've found these 530's like a bit of heat even in the summer when first starting

 

[Timbo]

If its got the Filter head Perkins lift pump and Delphi injection pump, even if the lift pump is working (they dont last much more than 2 yrs ) the chances are the Delphi pump is worn out - they're made of cheese and exaberated by the lift pump being **after** the filter and the chocolate brass gears inside slowly shed metal into the inj pump.

 

[Hesston4860s]

Mines an 02 no electric lift pump on it but there is a small non return valve, just after the sender unit pickup pipe on top of the tank.