HIGH PRESSURE FUEL PUMP Repair BMW N53 N54 N55 Engine
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- เผยแพร่เมื่อ 30 พ.ค. 2024
- The X-ring must be tight fit on the spring type compressors 1.8mm thickness and 20mm inner diameter for the x-ring . Make sure it's tight fit(O-ring is prone to more issues).
The Oil Seal size is 22mm outer 11mm inner and 7mm wide.
- Fuel plausibility too low
-Error code P0088
-11A002
-110001 - Cylinder injection cutout: Pressure too low in high-pressure fuel system.
-11A002 - High pressure fuel, plausibility Pressure too low.
- DME shadow (inactive) codes -
11A401 - Fuel high pressure during fuel injection release: Pressure too low.
11B401 - Fuel high pressure or after enabling injection (2nd ambient condition set after delay): Pressure too low.
21A023 - Combustion engine: Unsuccessful start or engine stopped without driver influence. - ยานยนต์และพาหนะ
NOTE : The suction to be done on the syringe is near to 40ml if you are doing full oil immersed method.
Previous methods th-cam.com/video/k28ZdR7cytY/w-d-xo.html
th-cam.com/video/mKBYFQPRx7w/w-d-xo.html
Subbed for the great video. Well done man!
Do you have some part numbers for seals or measurements? Specs needed for company what makes o-rings and x-rings
Please see description for sizes.
Part number is shop specific so I don't think it will work in your area, those are listed below
Hpfp x-ring - 37757
Oil seal 62856
how long does this modification last? have you had to rebuild the pump again after having done this?
This was done 2 weeks back. I had done similar fix 3 years back and its still running fine and crossed 25k miles. If the pressure inside the hpfp is higher then there is more possibility of early failure
21:00 when I was cleaning this orifice I had some small chunks that came out that turns to like sand when u press on it a little bit, also after putting the diaphragm started to leak a little bit of oil, have encountered this? Also I use thinner oil 5/50 just to check but I think it needs a thicker oil to put inside . Any advice thanks
Thinner than 0w20 will be too light that it will not do the job of lubrication. If there is no lubrication there will be more wear and metal shavings will accumulate like sand. I think you can use 5w30 if you want thicker but too thicker might not work properly as the flow of oil has to be fast to compress the pistons. I had tried the thicker differential oil 3 years back and it was running fine, but one day out of curiosity I opened up and found that it was not lubricating as it should and was accumulating metal shavings.
@@bimmerhacks I was thinking the same, 15w40 ok?
@@1kontrabida it should be OK, just my thoughts not a pro 😉
Hello, good friend, I have bought 3 pumps since they come defective, supposedly new ones that have a 27mm membrane, do they all come empty of oil? thank you
th-cam.com/video/XR-Z9Tg46xA/w-d-xo.htmlsi=pibuPxaZTn9wx__Z
As I explained in this video 27mm means there is no oil pressure inside the HPFP, it might have oil in it if fuel didn't penetrate in but NO USE.
If you're repairing go for fully immersed method which I recommend rather than filling oil through oil seal. U can install the oil seal at the end same as I have shown in this video once all other parts has been installed immersing in oil.
Vacuum must not exceel 40ml on a 60-100ml syringe
great then 100% these pumps are pressurized internally with oil and their optimal and long-lasting operation is the load of oil to lubricate these internal parts, what I don't understand is why the new pumps do not have this pressurization, I imagine low quality Chinese production, this Chinese pump, is it possible to fill it with oil and make it work correctly? Thank you very much for the info
@@moisesgonzalez8103 open it up and see. Don't buy refurbished one, when you rotate the itself you can feel a grinding sense. Buy junkyard one and fix if your diaphragm or any springs are leaking.
Quick question is there a fix if the diaphragm is leaking?
No fix for Diaphragm. Go and get a junkyard one so that you have spare compression springs as well.
@@bimmerhacks thanks bradah
dimensions of the o ring on the outside? where the 2 halves are compressed?
No need to change it. I have repaired 3 HPFP and none did I change
@@bimmerhacks thank you
@user-ek5qu6he6m th-cam.com/video/XR-Z9Tg46xA/w-d-xo.html
I used to miss some information that I used to convey in succeeding videos. Fixing and vloging together is a bit difficult ;)
Where do I get the parts from?
Heavy vehicle and machineries seals & hoses shop