Mini Cooper N14 High Pressure Fuel Pump Disassembly Repair

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3 жыл бұрын

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.

Пікірлер: 76

@martyn2903 Жыл бұрын

This is why I love the internet!!! We all have (had) our little finds, and never cared to share… as the world goes round, we all keep inventing wheels over and over again… Knowledge is to be shared and stored, no to be held back or kept a secret! Thanks for sharing! Keep it up!! 👍🏼

@guspi76 Жыл бұрын

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.

@janhemming2677 Жыл бұрын

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!

@leonard54321 Жыл бұрын

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?

@janhemming2677 Жыл бұрын

@@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.

@leonard54321 Жыл бұрын

@@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

@leonard54321 Жыл бұрын

I've been told by the main man himself Mr2tempos

@leonard54321 Жыл бұрын

Unfortunately I've upgraded safe proofed a lot of issues while cars been in garage for a couple of months

@neyguita Жыл бұрын

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..

@ericstone1574 Жыл бұрын

Thank e for the information ,it was helpful.

@ASSP123 3 жыл бұрын

Thank you for sharing

@michaelvanna8982 3 жыл бұрын

Thanks...super....angel👍♥️

@Stephen-wh7vl 5 ай бұрын

Great video

@stefanodeanjou8732 11 күн бұрын

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

@cesarjorgemurillobarientos1813 2 жыл бұрын

very good master

@leonard54321 2 жыл бұрын

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

@user-dm5rg7sj7g 11 ай бұрын

Спасибо!

@sjm.photos 2 жыл бұрын

pump in the bmw 1 series. peugeot rcz . mini. 207 , 208 , 308 and more

@fashioncarsviral 2 жыл бұрын

Bonsoir, quel type d'huile faut-il mettre dans la pompe ??

@neyguita 2 жыл бұрын

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 ..

@Ryang1987 10 ай бұрын

I know it's a old comment but I was thinking the same. I'm going to try assembly with it submerged

@iurieduca8790 Ай бұрын

@@Ryang1987Did you try submerged assembly?

@Mr2tempos 3 жыл бұрын

Nice photo of the bomb and its parts ...... presented at 5:16 minutes.

@AIRCOOLEDLIFE 2 жыл бұрын

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.

@bendude6748 2 жыл бұрын

hows it going?

@robsonfrassao8935 Жыл бұрын

@brettbernhardt7608 9 ай бұрын

Hi not sure if you will see this reply but how to you check your high fuel pressure?

@dila181 Жыл бұрын

Thanks man for the video, it was helpful..

@jaredmorales3634 3 жыл бұрын

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??

@chasechevy8933 3 жыл бұрын

Yes, very possible. What happens is they lose prime when sitting over night.

@chemicalyinbalanced 16 күн бұрын

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

@HamTechRadioScannerDrones 7 ай бұрын

Hi Great Videos , what oil should i Use ?

@nickwoolf7977 3 ай бұрын

Hi could you tell me what grade of oil is used in these pumps ? Thanks

@grudgeholder6844 Жыл бұрын

I measured it, it's 22mm. Should I repair it, or it's good? Can I use ATF oil (automatic transmission oil)?

@mrboy3114 Жыл бұрын

22- normal ATF normal

@kazsan1647 9 ай бұрын

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 🙏

@greghughes54 2 жыл бұрын

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.

@Enigmatic_Music1 3 жыл бұрын

i cant find synthetic 80-90 oil, will mineral work?

@x8vier Ай бұрын

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.

@denismurina5721 Ай бұрын

Greetings from sweden did you follow his steps in the video and it worked? :) does it still work ?

@Filipcarmin 3 жыл бұрын

OK ,tell me the best oil for the pump,specification ? i'm waiting you answer Thanks.

@joshualoveless4237 3 жыл бұрын

Says in the video best he could fide was atf or 80w90

@user-ur3mg8qz7y 2 жыл бұрын

Здравствуйте где можно найти головку для откручивания плунжеров

@UberAlphaSirus 5 ай бұрын

they are in a citroen ds3 1.6 thp turbo petrol as well if it helps anyone.

@mhemedmahdjoub9145 3 жыл бұрын

If any one diagnosed his car and he pounds this code P0087 most probably this one its the issue the high pressure fuel pump

@sudeman48 2 жыл бұрын

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

@user-nj7cs6sl5g 3 жыл бұрын

Dont forget to change an oil seal. If you dont do that, oil will leak into engine again.

@perisicmico5244 2 жыл бұрын

I Need help? I have problem with porsche cayenne 4.8 turbo ? Full pump? Have you got video ?

@saulgoodman729 3 жыл бұрын

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?

@cheapers1952 Жыл бұрын

I would suspect solenoid failure first !!

@carlosandresparra9306 2 ай бұрын

What are the symptoms of a failing high pressure pump?? (N14 also).

@CocaiineNadex Ай бұрын

Will run rough and sound like it's coming close to stalling. Might also get an engine light that's half coloured in

@carlosandresparra9306 Ай бұрын

@@CocaiineNadex also high comsumption? Rich mixture?? Maybe unrelated ...heating of the engine??

@miniclubman99 23 күн бұрын

@@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

@ronniemengel 2 жыл бұрын

Hi, you are sure that a new pump has 13mm ?? I have measured a new pump with 22mm 🤷🏼‍♂️ .... thanks BR Ronnie

@grudgeholder6844 Жыл бұрын

I have a hpfp. I measured the diaphram, it's 22mm. Should I repair it?

@mrboy3114 Жыл бұрын

@@grudgeholder6844 22- rood

@grudgeholder6844 Жыл бұрын

@@mrboy3114 22 millimeters

@mrboy3114 Жыл бұрын

@@grudgeholder6844 22-yes

@grudgeholder6844 Жыл бұрын

@@mrboy3114 hahaha :) where is this conversation going? I just wonder, 22mm is good or bad. Should I repair it? 😁

@luisquilesrivera6874 3 ай бұрын

O ring size pls

@crc1601 Күн бұрын

Hello, may I know at what temperature the high pressure fuel pump works?

@diemman70 2 жыл бұрын

Man, are these pumps worth the hassle? Is maintaining the whole car worth your time?

@louisannan8142 3 жыл бұрын

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

@chasechevy8933 3 жыл бұрын

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

@kopronko 3 жыл бұрын

@@chasechevy8933 Okay, But : What IS The Correct oil ?? Thank you.

@chasechevy8933 3 жыл бұрын

@@kopronko ....No idea what goes in the pump itself. Those aren't designed to be serviced by the customer

@elieconstantine 3 жыл бұрын

@@chasechevy8933 are there any springs/piston replacement parts?

@chasechevy8933 3 жыл бұрын

@@elieconstantine ....I'm sure there are but only shops with specialized tools do that kind of thing with any real reliable results