Jcb 8014 power loss

[Deanofire]

Hi all, it's been a while.
I have a jcb 8014 CTS 2015. I haven't used it for 3 months but even before then I noticed it was losing power. Today I went to start it for the first time in 3 months ( I live in the south of France and had 40° plus summer) and it turned over and as it started to fire it just cut out. I tried checking water trap , fuel connections, fuel cap etc as I suspected air in the fuel system then I left it a couple of times and eventually it has fired up but on revs as soon as I try to track or use the arm ,the revs drop right down to the point it stalls , and if I put it up to full revs it drops and wants to stall. Any ideas what to try first ? Thanks in advance. (V8 Druid i have the timer running for your reply lol)

 

[V8Druid]

sounds like fuel starvation (or lack of a clear breather in the tank?) or ...
a breaker pedal slightly off centre/neutral
or same issue with your boom slew pedal ???
does it turn over OK?
if so it's more likely a fuel issue
any banjo fittings anywhere - often filters in those which sludge up for a past time

 

[Deanofire]

Hi all, it's been a while.
I have a jcb 8014 CTS 2015. I haven't used it for 3 months but even before then I noticed it was losing power. Today I went to start it for the first time in 3 months ( I live in the south of transcend and had 40° plus summer) and it turned over and as it started to fire it just cut out. I tried checking water trap , fuel connections, fuel cap etc as I suspected air in the fuel system then I left it a couple of times and eventually it has fired up but on revs as soon as I try to track or use the arm ,the revs drop right down to the point it stalls , and if I put it up to full revs it drops and wants to stall. Any ideas what to try first ? Thanks in advance. (V8 Druid i have the timer running for your reply lol)

 

[Deanofire]

sounds like fuel starvation (or lack of a clear breather in the tank?) or ...
a breaker pedal slightly off centre/neutral
or same issue with your boom slew pedal ???
does it turn over OK?
if so it's more likely a fuel issue
any banjo fittings anywhere - often filters in those which sludge up for a past time

Wow unbelievable. Under 15 mins lol
Hi again good to here from you. Yes it starts fine now but just the power issue. I am pretty sure it's a fuel starvation issue as well, but not sure what to try first.
Ps. Hope your well. Still waiting for you to pop in for thst beer I promised you.

 

[Deanofire]

Where is the fuel tank breather and is it easy to check/clean/ change ?

sounds like fuel starvation (or lack of a clear breather in the tank?) or ...
a breaker pedal slightly off centre/neutral
or same issue with your boom slew pedal ???
does it turn over OK?
if so it's more likely a fuel issue
any banjo fittings anywhere - often filters in those which sludge up for a past time

 

[Smiffy]

Where is the fuel tank breather and is it easy to check/clean/ change ?

Just undo the cap and it will tell you if the breather needs more investigation

 

[Deanofire]

Just undo the cap and it will tell you if the breather needs more investigation

Thanks so much Smiffy, I just took the fuel cap completely off and it's working 100 times better, i just ran it for 30 mins and all was good,Still drops a little if I hit a hard bit but I think it always did. So what is the next step now as I obviously can't leave the cap off full time ?
Thanks again.

 

[Smiffy]

Thanks so much Smiffy, I just took the fuel cap completely off and it's working 100 times better, i just ran it for 30 mins and all was good,Still drops a little if I hit a hard bit but I think it always did. So what is the next step now as I obviously can't leave the cap off full time ?
Thanks again.

Now you know it's the fuel breather to go looking for. I'm not sure I think these might have a vented fuel cap.

 

[Deanofire]

Now you know it's the fuel breather to go looking for. I'm not sure I think these might have a vented fuel cap.

sorry mate, i am confused now, are you saying the cap is the breather or i still have to find the breather ?

 

[Smiffy]

sorry mate, i am confused now, are you saying the cap is the breather or i still have to find the breather ?

I'm not sure. I think from memory the last one I looked at the cap was the breather.

 

[Deanofire]

so that means the cap is blocked so try and clear that or get a new one ?

 

[Smiffy]

so that means the cap is blocked so try and clear that or get a new one ?

Yeah if it is vented turn it upside down and there will be 4 rectangular holes in circle around the little loop that the chain attached to.
If it's the type that won't let you ever tighten then they come apart. But getting them apart without breaking anything may be a challenge I've never taken one apart. Only dropped them and they fell apart

 

[V8Druid]

Wow unbelievable. Under 15 mins lol
Hi again good to here from you. Yes it starts fine now but just the power issue. I am pretty sure it's a fuel starvation issue as well, but not sure what to try first.
Ps. Hope your well. Still waiting for you to pop in for thst beer I promised you.

hi,
relatively well thanks apart from my fourth bout of pancreatitis a fortnight ago
I'll take a look at my cap tomorrow on the 8015 and get some pix ... pretty sure mine is a vented cap -- 's a big lump of a cap under the bonnet
lack of free ventilation to the tank certainly sounds like the issue

 

[Deanofire]

Yeah if it is vented turn it upside down and there will be 4 rectangular holes in circle around the little loop that the chain attached to.
If it's the type that won't let you ever tighten then they come apart. But getting them apart without breaking anything may be a challenge I've never taken one apart. Only dropped them and they fell apart

Ok thanks for that. I will look tomorrow

 

[Deanofire]

hi,
relatively well thanks apart from my fourth bout of pancreatitis a fortnight ago
I'll take a look at my cap tomorrow on the 8015 and get some pix ... pretty sure mine is a vented cap -- 's a big lump of a cap under the bonnet
lack of free ventilation to the tank certainly sounds like the issue

Thanks mate. I will look again at mine tomorrow. Sorry you ain't been well but hopefully getting better now.

 

[Deanofire]

Continuing on from the problem, I did manage to get it running with the new fuel cap but it still needed starting with the cap off ( never had a problem starting it 5 years ) once running , it was ok but still lacking power and if I went to extremes it would cut out completely, it's nowhere near as responsive as it used to be. And today I have tried to start it and it wont start. It turns over and fires up and immediately dies. Could this be fuel filter probs ?

 

[V8Druid]

Continuing on from the problem, I did manage to get it running with the new fuel cap but it still needed starting with the cap off ( never had a problem starting it 5 years ) once running , it was ok but still lacking power and if I went to extremes it would cut out completely, it's nowhere near as responsive as it used to be. And today I have tried to start it and it wont start. It turns over and fires up and immediately dies. Could this be fuel filter probs ?

Possibly a combination of the original breather issues and maybe a blocked banjo filter or maybe even diesel bug causing rapid blocking of filters
did you change your fuel filters last time??
it's lashing down here ATM, but 'sposed to be dry tomorrow ... will take a look at my 8015 tomorrow and see if there are any banjo unions anywhere on the fuel supply system - will get some pix if there are
very odd problem

 

[Deanofire]

Possibly a combination of the original breather issues and maybe a blocked banjo filter or maybe even diesel bug causing rapid blocking of filters
did you change your fuel filters last time??
it's lashing down here ATM, but 'sposed to be dry tomorrow ... will take a look at my 8015 tomorrow and see if there are any banjo unions anywhere on the fuel supply system - will get some pix if there are
very odd problem

Hi. Yes. I changed the main bowl fuel filter in the right and the little plastic filter at the top , do you think i should change them again ?

 

[Deanofire]

Hi. Yes. I changed the main bowl fuel filter in the right and the little plastic filter at the top , do you think i should change them again ?

Also is this part worth considering?

 

[V8Druid]

Also is this part worth considering?View attachment 85892

looks like an inline filter