Fuel pump turbo setting

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Lazysloth

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Hi all, me again. Thanks so much for your help with my steering wheel. Im hoping for some more advice if you wouldn't mind

Cut along story short the boat is maxing out at 10knts however was doing 25knts previously before I bought it. Had a marine engineer out who said there is nothing wrong with engine. However the turbo isn't kicking in. Psi is 0 but previously reading 15... The turbo itself is cold to touch after use. When in neutral the boats max rpm is at 3500 but drops to only 2000 when underway again prior to be buying it was 3900...

I emailed the guy who installed the engine and he mentioned someone may have set the fuel pump back to non-turbo settings.. I was wondering if anyone knew what this meant and how I can set it back?

Many thanks Michael
 
Lazysloth said:
Hi all, me again. Thanks so much for your help with my steering wheel. Im hoping for some more advice if you wouldn't mind

Cut along story short the boat is maxing out at 10knts however was doing 25knts previously before I bought it. Had a marine engineer out who said there is nothing wrong with engine. However the turbo isn't kicking in. Psi is 0 but previously reading 15... The turbo itself is cold to touch after use. When in neutral the boats max rpm is at 3500 but drops to only 2000 when underway again prior to be buying it was 3900...

I emailed the guy who installed the engine and he mentioned someone may have set the fuel pump back to non-turbo settings.. I was wondering if anyone knew what this meant and how I can set it back?

Many thanks Michael
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Did you see. It doing 25 k.
 
Lazysloth said:
Hi all, me again. Thanks so much for your help with my steering wheel. Im hoping for some more advice if you wouldn't mind

Cut along story short the boat is maxing out at 10knts however was doing 25knts previously before I bought it. Had a marine engineer out who said there is nothing wrong with engine. However the turbo isn't kicking in. Psi is 0 but previously reading 15... The turbo itself is cold to touch after use. When in neutral the boats max rpm is at 3500 but drops to only 2000 when underway again prior to be buying it was 3900...

I emailed the guy who installed the engine and he mentioned someone may have set the fuel pump back to non-turbo settings.. I was wondering if anyone knew what this meant and how I can set it back?

Many thanks Michael
Click to expand...
What is the engine make and model number?
 
Hi no I didn't see it doing 25k I bought it aware of the problem just trying to get to the bottom of what the issue is...
I messaged the guy who installed the engine (completely unrelated to the sale) who said it done 25k when he was on it. The boat surveyor flagged up it should be going fast on the survey... Was hoping it would be a Easy fix tbh.

It's a marinised ford puma (Duratorq ZSD) engine. Settings the fuel pump back from a non turbo to turbo sounds easy enough but I have no idea how to do it, who why it would be switched off in the first place

Many thanks
 
Lazysloth said:
Hi no I didn't see it doing 25k I bought it aware of the problem just trying to get to the bottom of what the issue is...
I messaged the guy who installed the engine (completely unrelated to the sale) who said it done 25k when he was on it. The boat surveyor flagged up it should be going fast on the survey... Was hoping it would be a Easy fix tbh.

It's a marinised ford puma (Duratorq ZSD) engine. Settings the fuel pump back from a non turbo to turbo sounds easy enough but I have no idea how to do it, who why it would be switched off in the first place

Many thanks
Click to expand...
A non-turbo setting on the fuel pump sounds like a red herring to me. Take the air filter off so you can see the inlet to the turbocharger. Can you spin the turbine with your finger?
 
Plum said:
A non-turbo setting on the fuel pump sounds like a red herring to me. Take the air filter off so you can see the inlet to the turbocharger. Can you spin the turbine with your finger?
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Hi, yes I had a mate look at it earlier today and he done exactly that. Span it easily and said it wasn't seized.
 
Lazysloth said:
Hi no I didn't see it doing 25k I bought it aware of the problem just trying to get to the bottom of what the issue is...
I messaged the guy who installed the engine (completely unrelated to the sale) who said it done 25k when he was on it. The boat surveyor flagged up it should be going fast on the survey... Was hoping it would be a Easy fix tbh.

It's a marinised ford puma (Duratorq ZSD) engine. Settings the fuel pump back from a non turbo to turbo sounds easy enough but I have no idea how to do it, who why it would be switched off in the first place

Many thanks
Click to expand...
If the fuel pump has been reset to match the engine with no turbo . Then resetting this to turbo will only produce black smoke until you fix the turbo. I am puzzled that the turbo is cold to the touch because regardless of whether it is working or not the exhaust will still be flowing through the exhaust end of the turbo which would be too hot to touch. Has the exhaust been re routed?

It is a get you home procedure on big marine engines to reduce the fuel pump delivery on cylinders with a defective and locked turbo. We had the luxury of an electric blower to assist in these circumstances. and could isolate the unblown cylinders from the blown. Not heard of boaters doing it before?

The waste gate is not stuck open is it.
 
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I think on an older engine there is a pipe from the boost side to the fuel pump that tells the pump to increase fuelling. Presumably on more modern engines that is done electronically. Just realised you have no boost, if the turbo is turning the exhaust gasses must be bypassing the turbo, or the shaft is broken and the exhaust side isn't turning the pressure side. Wastegate stuck open is a good call.
 
no idea what that engine is. Diesel fuel pump to normally aspirated settings is frankly bollx as I'm pretty sure there really aren't any on a car engine!
without removing the turbo (hopefully wont need to reach that stage!) take some pics of the turbo and the pipework around it.
I'd also give it a 90% chance of stuck wastegate.
Still turbo cannot be possibly cool after a run. Are you sure you were touching the turbo? which side ali or cast iron (dont!)
Even with wastegate open I cannot see how exhaust gasses in the 300+C temp are not heating cast iron 50-100mm away.

another thing, boost gauge is analogue or digital? a pic of the dash would help.
a slightly far fetched explanation would be that engine is indeed fine, boost is indeed rising to where it should (but gauge is not reporting correctly due to either sensor or cabling failure) and the issue is fouling not letting the boat go any faster. Is it outdrive or shaft? Guess single engine. When was the hull cleaned/antifouled last?
 
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Hello guys thank you all for the advice. Appreciate it. Apologies for the late reply. I've been trying to uplpad photos of engine etc for you but keep getting an error.

Anyway the boat is a 1989 Sealine 218. It originally had a petrol engine in it but the previous owner had a marinised diesel engine put in it back in 2018. The engine is a ford puma 2.4L 4cylinder diesel engine. It is also under the name 2.41 dura torq turbo diesel. It's maximum rev should be 3900 (mine only goes to 2000)
I emailed the company who installed the engine and his response is below

"I remember being on board the boat when she was in brighton Marina, and I seem to recall a speed of around 25 Knots, with about 3900RPM and 15 PSI (1 Bar) boost pressure.

If you are short of power and RPM and have no boost, it my be that somebody has set the fuel pump back to non-turbo settings, or the boost control pipe from the inlet manifold to the injection pump is blocked/detatched, or one of the turbo air hoses is loose/damaged, or the turbo is seized up, or the charge air cooler is fouled up with salt."

I don't know how to check most of these myself but there are no loose hoses going to the turbo and the turbo is not seized as it can be span with fingers .

I was interested in the fuel pump setting he mentioned but not really sure what to do with this...
A few of you had mentioned a waste gate for the turbo being stuck open. Where might I find this to check?
I'll look to see if the exhaust has been diverted with regards to the turbo being cold... I can't imagine why someone would do this though...
Many thanks for all your help
 
Assuming hull is clean and prop is clean (that is not it was cleaned in July 2021, not even Dec2021 with boat on the water all along) then you definitely need someone to look at the engine.
It's almost impossible to guide over a forum someone that admits he cannot check the (mostly reasonable) list you quote above.
 
Perhaps with a water cooled turbo not run for long it wouldn't get very warm?
Is it a Lancing Marine conversion? If so maybe they can offer advice?
I think you will have to get someone with more knowledge to look at it.
 
vas said:
Assuming hull is clean and prop is clean (that is not it was cleaned in July 2021, not even Dec2021 with boat on the water all along) then you definitely need someone to look at the engine.
It's almost impossible to guide over a forum someone that admits he cannot check the (mostly reasonable) list you quote above.
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it was cleaned just over a month ago when it was put in the water.
Actually I believe I have checked many of the items listed above. I simply asked about the wastegate as this is something lancing marine and my marine engineer up here had not mentioned. Just for your clarification I have checked the throttle cable and tightened that, checked the turbo is not seized, the pipe work is not loose. I was just trying to gain some information on the fuel pump setting and people's thoughts on the issue. I am not expecting to be guided on how to fix it on here.
With regards to your previous post I was planning on popping down and taking some photos of the turbo for you today. In the meantime I have a photo of the engine what can be found here PXL-20220421-125541851-min and the dash can be found here PXL-20220413-183235129. yes I am sure I'm touching the turbo. The boat is a single engine out drive . Forgot to say. Thank you for all your help anyway. Got the marine engineer coming out on Thursday to have another look at it again. Many thanks and take care.
 
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gordmac said:
Perhaps with a water cooled turbo not run for long it wouldn't get very warm?
Is it a Lancing Marine conversion? If so maybe they can offer advice?
I think you will have to get someone with more knowledge to look at it.
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Hi,
Yes it's lancing marine who done the conversion. They sent me the email in the above post. They have been really helpful tbf. I've already had a marine engineer look at it but no luck. So thought I would reach out on here for people's thoughts. He is coming back to have another go at it on Thursday so ? I'll update with what the cause is if we find it. Thank you everyone ?
 
On my MTU engines, which are mechanical, there is an 'over fueling' valve that is actuated by the turbo boost pressure on the fuel pump. This means that as the turbo starts building pressure it allows the fuel pump to deliver more fuel. If this valve is not correctly adjusted, then despite the turbo beginning to spin, no additional fuel is delivered, and the engine will not rev any faster. A clue will be if you are getting zero black smoke at your max (albeit reduced) revs. An open waste gate could cause this too, if boost pressure controls fuel delivery. If it does not, then you'd be getting black smoke I think
 
markc said:
On my MTU engines, which are mechanical, there is an 'over fueling' valve that is actuated by the turbo boost pressure on the fuel pump. This means that as the turbo starts building pressure it allows the fuel pump to deliver more fuel. If this valve is not correctly adjusted, then despite the turbo beginning to spin, no additional fuel is delivered, and the engine will not rev any faster. A clue will be if you are getting zero black smoke at your max (albeit reduced) revs. An open waste gate could cause this too, if boost pressure controls fuel delivery. If it does not, then you'd be getting black smoke I think
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Hi mark
I did notice some small amount of black smoke when last out on the water at max rev (2000 rpm)
 
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