Mini Cooper N14 High Pressure Fuel Pump Disassembly Repair
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- Опубликовано: 19 сен 2020
- Summery of information I have gathered about the commonly failing high pressure fuel pump for the Mini Cooper. Possibility for repair under circumstance of lost oil.
This is why I love the internet!!!
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Knowledge is to be shared and stored, no to be held back or kept a secret!
Thanks for sharing! Keep it up!! 👍🏼
Thanks, this helped me fix the identical pump from a Citroen C4 Grand Picasso with THP155 engine. Meanwhile, the replacement pump arrived but I've done several 1000km without any problems so I left the repaired pump in the engine. It may be important to know that the problem didn't disappear on the spot, but the repaired pump needed a little breaking in before all was back to normal. Thumbs up!
By breaking in what do you mean? This is my current situation I am in. Refurbed the pump reinstalled and thrown 2c01 code. Low pressure in hpfp. How did your car behave until it ran well and did it throw any codes?
@@leonard54321 The error code is unknown to me but obviously equivalent to P0087 in the Citroen world. After replacing the pump, the engine worked well straight away but some stuttering came back say during the first 100km. In don't remember if there were any error codes. After you fixed the pump, did you measure the distance to the diaphragm? Should be well below 20mm or else your repair failed in the first place.
@@janhemming2677 I did Jan Infact I had the opposite problem I used a hand pump vacuum on the diaphragm while installing the drive side. Ended up with a measurement of an increment below 12mm which equally worried me as that was it's minimum ultimate limit it could not be depressed anymore. After that I slowly unscrewed 3 screws until enough oil seeped out to create a 16mm dist from diaphragm to inner bell housing
I've been told by the main man himself Mr2tempos
Unfortunately I've upgraded safe proofed a lot of issues while cars been in garage for a couple of months
To me, it appears that the oil inside loses its viscosity causing the piston to lose its seal. Therefore, the bellows will not cycle its full-length witch will cause a decrease in fuel pressure. This is more likely caused by the extreme heat transferred from the head onto the pump. The pump acts as a heat sink from the head and takes in all the hat transferring it onto the oil inside. My 2 cents would be to change this oil every 3o-40k miles.
Just to share my experience...at the tine of my comment I replsced the oil by 0w20 sintetic ( same for auto motor) ..I dived the two parts in order of close it without any such little air'bubble.
So far, 12k kilometers roared.
btw, my pump is original from 2014..
Thank you for sharing
I find that they fail more often from the pressure regulation valve mostly due to hardened seals which comes into contact with the fuel. It can be removed and resealed also heat affects the solenoid mechanism of the valve itself where either the coil windings break down or the valve becomes sticky not regulating the fuel flow correctly
Thank e for the information ,it was helpful.
Thanks...super....angel👍♥️
very good master
Спасибо!
Great video
pump in the bmw 1 series. peugeot rcz . mini. 207 , 208 , 308 and more
What is the measurement of oil to put into the pump. Or do I fill to a certain level? Also how much lucus engine restore should I add? Thanks Leo
Hi Great Videos , what oil should i Use ?
Nice photo of the bomb and its parts ...... presented at 5:16 minutes.
Hi, Thanks for the video! Does anyone know if you can get a "Lazy Pump".
I have had every thing replaced on the fuel system, but had the HPFP refurbished, but still have the same symptoms.
When on full acceleration I get around 1800psi, at idle it fluctuates from around 630psi to 750psi. However when idling and bliping the accelerator or coming to a stop, i get a massive drop in fuel pressure, and it shows around 200psi, and then gradually goes back up to where it starts to fluctuate again around the 650-750psi mark. This causes the car to stutter badly but does not actually stall. On startup I get a slight hesitation/hicup and then the fuel pressure climbs to the 650-750psi mark and fluctuates there again. car with ignition on is at 70.5psi which is what the in tank fuel
pumps are rated at. Could this be a bad HPFP. Alot of money to fork out if it isn;t that. Cheers for your help
they are in a citroen ds3 1.6 thp turbo petrol as well if it helps anyone.
Bonsoir, quel type d'huile faut-il mettre dans la pompe ??
I've revived my pump from 17mm to 27mm on the diaphragm. My fuel pressure is now in the 700+psi @ idle. It idles smooth now. Not sure how long it's going to last but I'll try and provide updates when possible.
hows it going?
?
Hi not sure if you will see this reply but how to you check your high fuel pressure?
Thanks man for the video, it was helpful..
Здравствуйте где можно найти головку для откручивания плунжеров
Hi SSA - Is this channel still active? Can you be contacted via other social media? I have a question about a damaged thermal compensator housing. TIA.
If any one diagnosed his car and he pounds this code P0087 most probably this one its the issue the high pressure fuel pump
Hi could you tell me what grade of oil is used in these pumps ? Thanks
Hi, I see the post is old but I'm wondering if anyone can help me. I noticed the oil and fuel are mixing together... what should i do please 🙏
I measured it, it's 22mm. Should I repair it, or it's good? Can I use ATF oil (automatic transmission oil)?
22- normal ATF normal
Greetings from Mexico , I followed your steps and successfully y ended up with a good working pump. But I didnt change the seal, I couldn't find the part number , do you happen to have a part number? Im planning to take it apart nextime soon so I can change seal and orings .thank you for your tips.
Greetings from sweden did you follow his steps in the video and it worked? :) does it still work ?
Why don’t u tear down the solenoid and change the o rings on the fuel side? They dry out and don’t hold the proper amount of pressure. That’s where the fuel does it’s business
Dont forget to change an oil seal. If you dont do that, oil will leak into engine again.
OK ,tell me the best oil for the pump,specification ? i'm waiting you answer Thanks.
Says in the video best he could fide was atf or 80w90
I would suspect solenoid failure first !!
Would this be cause of no crank ons chilly morning? I recently finished up replacing clutch and it sat for a week and when I tried to start there was nothing??
Yes, very possible. What happens is they lose prime when sitting over night.
Hi,
Does anyone tried to dive the pump into a contsiner with oil in order to guarantee no air inside the pimp before close it..
I was just wondering such method ..
I know it's a old comment but I was thinking the same. I'm going to try assembly with it submerged
@@Ryang1987Did you try submerged assembly?
i cant find synthetic 80-90 oil, will mineral work?
O ring size pls
Could You Show us the spring retract step plssss! I don’t understand when exactly should I retract de spring and how. Before or after the pump is closed?
What are the symptoms of a failing high pressure pump?? (N14 also).
Will run rough and sound like it's coming close to stalling. Might also get an engine light that's half coloured in
@@CocaiineNadex also high comsumption? Rich mixture??
Maybe unrelated ...heating of the engine??
@@carlosandresparra9306 im in malaysia. the intake temp goes to 63'c (obd2) then my 2103 peugeot 3008 p84 go to limp mode (very hot day, big trucker catch fire and cause jam at highway). heating of the engine compartment - pump heated then fail... after my car cool down for 2 hour at oil gas station- back to normal after i clear code
I Need help? I have problem with porsche cayenne 4.8 turbo ? Full pump? Have you got video ?
Hi, you are sure that a new pump has 13mm ?? I have measured a new pump with 22mm 🤷🏼♂️ .... thanks
BR Ronnie
I have a hpfp. I measured the diaphram, it's 22mm. Should I repair it?
@@grudgeholder6844 22- rood
@@mrboy3114 22 millimeters
@@grudgeholder6844 22-yes
@@mrboy3114 hahaha :) where is this conversation going? I just wonder, 22mm is good or bad. Should I repair it? 😁
Man, are these pumps worth the hassle? Is maintaining the whole car worth your time?
This video also misses vital steps which prevent this happening in the future, and prevent the pump being damaged... up to people whether they think it’s worth the risk or use a professional
There is no way to prevent it from happening again other than changing your oil often with the correct oil. You replace them when they wear out. That simple
@@chasechevy8933 Okay, But : What IS The Correct oil ?? Thank you.
@@kopronko ....No idea what goes in the pump itself. Those aren't designed to be serviced by the customer
@@chasechevy8933 are there any springs/piston replacement parts?
@@elieconstantine ....I'm sure there are but only shops with specialized tools do that kind of thing with any real reliable results
Whats he talking..u havent go clue lad
This is NOT (Fuel Pump Disassembly Repair) A BUNCH OF WORTHLESS GIBBERISH!
So it's basically a two piston version of the old 3 piston pump used in the N54 and early N55s.
🤨🧐
Hello, may I know at what temperature the high pressure fuel pump works?