Replacing the seals on a Bosh CP-1 High Pressure fuel pump, car won't start
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- Опубліковано 20 сер 2024
- Car was running with little power, especially up hills, after a month of this, car wouldn't start.
Checked these basics first. Car needs Air, Fuel and compression to run.
** Air Side **
- air filter not blocked (Run without filter in, see if it's better)
- Turbo turns freely, and not worn.
- air pipes/manifold not blocked, or leaking
- MAP and MAF sensors working as they should do (volt meter, or OBD)
- Check glow plugs all come on and resistance 0.8 to 1.2 Ohm. (my other video)
- Check glow plugs aren't loose (no/low compression)
- Check crank sensor pick-up
- Check fuel pressure sensor
** Fuel side **
- Low pressure pump working (listen for it Pos 1 & 2 of ignition)
- Fuel filter not blocked, or full of water (usually a drain underneath)
- Fuel in High Pressure rail
- Injectors fire (my other video)
- injector fuel return test (leak down test)
Anything else?
A few of you want these details...
www.ebay.co.uk...
Capping the open pipes is VERY important. You could also brush loose dirt away with a shop vac to get rid of the bulk crud. Then get the whole pump into a wash tank to remove 95% of the loose crud that will be into every gap. It won't be the whole job but makes the later deep cleaning much easier.
** Tip 1 ** - When you take the out the pump retaining screws, hold a magnet stick close by to catch the screws rather than drop them into the bowels of the engine bay.
** Tip 2 ** - A one size too small Torx bit will often appear to fit but will slip and chew the crew head. ALWAYS try the next size up as very likely to fit snugly and can't slip.
you have just saved me a nice few pounds mate....thanks for taking your time to show us how to fix it...thanks
sharing is caring, thanks for the feedback, always good to know.
The best video on the hp pump! Good job really! And thank you for this video!
you're welcome, thanks for the support
@@alanmann very well done. The best fuel pump is the cp3 the cp4 is junk I see you have the cp1.
@7:04 This is the reason you should clean the entire outer body casing before commencing. Small micro particles that can be transferred is a no no. No particles ought be on the inside anyhow, so do take care its an awful lot of work to get it wrong. Good illustration video in both respects neg and pos = Perfect.
It will all be washed off in the ultrasonic bath, but an external bulk clean makes later deep cleaning much easier. I would fully wash the whole lot, probably in stages so cylinder parts can't get mixed up.
Thank you
Very good
Great video. Thanks
Great Video.
Interesting videos and excelent shows. I have one I would like to go with the same process as teaching us. You are the Man! one like from Africa EG-Malabo
Wasnt that leaky, should have seen one on my jeep, you could see the diesel seeping from under heads when cold. Whole engine soaked in diesel. Hopefully it wont leak anymore and HOPEFULLY no gunk got into the hoses. I used ultrasonic washed on the body and all the components before assembly. Anyway, fuel hoses have some kinda brow/rusty film on the inside (took a swab wit a qtip). Also... the pumps shaft had some corrosion residue (no pits), and that tells you much about fuel quality and water in it... Now, imagine what would circulate in the system if you had metal fuel tank (mines plastic).... Anyways, how did it go? Pump seals did it for you? I dont think the seals alone can cause crank/no start, at least not as long as the air doesnt get inside the system. And if it does get in, then you would have a MASSIVE leak.
Do you have to bench the pump after seal replacement? Or you just assemble it and mount it to the car? Great video and good explanation. Cheers
Is it not a concern that scraping that stuff off will get some of it in the pump?
Please clean the pump from the outside first and then dismantle not to see dirt on the sides (thank you)
My corsa opel 1.3 cdti does have the same hp pump
The car won t start or very hard start when engine us warm after running about one houre
I have to wait at least 15 min ti allow engine to cool down then it starts
But there is no problem on cold start
I was told it could be the faulty hp pump
What do you think
Anyway thanks for the vudeo
Hi!my car doesn-t start!it has the same cp1 HP pump!dismantle the pipe from common rail and no fuel comes out when motor cranks!dismantle also the plastic hoses and on the inlet also no fuel when i rotate the key to on position!i do have fuel with some pressure on the return when i switch to on position.the LP works and providrs fuel to the filter inlet !the hose between HP pump and filter is not cloged!my car it's an old Hyundai Elantra 2.0 crdi.Any clue?
This is so easy setup video on the seals on a bosh. If you need high pressure fuel pump snap-ua-cam.com/video/VBM507-0Mbw/v-deo.html
well done, but how the hell you didn't get any crap in that pump I'll never know, would of been inclined to off cap off the inlets and outlets first and clean the outside of the pump
I was very carefull with it when the pump was in the car and no tubes connected. Plus, before the finally connecting the HP pipe, I turned the engine over with the High Pressure outlet not connected to anything. This way it pumped fuel all the way through, but not into the common pressure rail, which obviously has no filter and goes straight to th injectors.
Do i Need to depressurise the common rail or anything before removal?
Great video mate. Thanks
Salam 2.2 611muhərikdi isti mator da xoda getmir su 80 yuxarı olanda
Hey men i realy need you to answer a question , i live in a vilage with not mutch educated people , i have the same pump on a vito 112 w638 but i forgot from where i took the 2 lines on the side ; (in your video in the beginning from 0.00 sec until 0.06 ) one has a normal hole like on the low presure pump and goes to the crankshaft and the other has a bigger hole but has like a one way valve and goes between the front 2 seals ... if it is posible i can send you pictures to make it more obvious... thank you .
Hi there! Great video Alan! Maybe you guys can help me with an issue. I replaced the seals on the Bosch CP1 cause I had a mayor diesel leak. After doing so, the engine fired up right away and I tested the car and everything seemed fine. The issue is that now, while I accelerate at full throttle, the car enters into LIMP mode and dies on me, you can turn the key off-on and the car will start immediately and I can resume driving... This didn't happened before. If someone knows what could be my issue or is there any part of the pump I should replace please let me know. Any help is much appreciated. Cheers!
This wont help Edgard but any changes to the fuel system need the engine ECU settings to be reset. MutiECUScan and the appropriate OBD cables allow you to look at the ECU parameters and reset to suit new parts.
Usually it happens because of fuel pressure regulator failure that's on the pump, but check error codes first
That's a usual symptom of wastegate axle stuck.Give it a try with some penetrate spray and try to unstuck with a long screwdriver.
Hi, can this pump make a ticking noise? Mine is working fine but the engine makes a ticking noise, only accelerating (injectors have been refurbished) .
Thanks
No expert - but a light ticking noise is usually injectors - there is a check valve in the pump, which could be worn and give a similar sound. Try putting a screwdriver on the pump, and rest the handle on your ear, and see if the sound is louder in your ear. Kind of a stethoscope teqnique. Otherwise, ticking sounds can be you cam/valve lifters not pressurising with oil. (can't remember this engine that well anymore) Hope that helps.
@@alanmannhi, the valve you are talking about is mounted on the rail on may car(320cdi w210). I’ll change it this week to see if it make any difference.
It’s a fine ticking noise only on acceleration.
Thanks for answering 👍🏾
@@cloatza89 Check your oil pressure (if you can) - especially when doing higher revs - If the oil lamp on the dashboard flickers on, then probably a blocked sump pickup.
Ticking when revving could be lack of oil getting to the cams... Just a thought. Good luck.
May bad pomp can cause no pulse?
Opel corsa/combo 1,3 cdti engine?
HOOOO
VERY NICE
IO ARE THE FULL
INGECTION SPECIALLY?
Could this be the reason for no start when warm ? The seals might expand when up to temperature there for it lets in air causing it to turn but not start?
Exactly opposite. The diesel leaks out and air gets in when cold. When up to temp seals expand and tighten the seal, no leaks. I could literally see diesel seepeing out from under the head on my jeep when cold. Hot - no prob. So, no start when cold, the longer the car sits the more air in system, the longer crank. That is... if theres no electric pump in tank. Jeep doesnt have one, has low pressure pump at the front of the block, above HP pump, that sucks fuel from tank. You get air in, good luck starting it.
@@marcinn6312 charged the pump and it no longer gets warm and it starts cold or hot. Thanks
Should be wearing latex gloves and keep all precision components 'wet' with diesel...
Where do you find the blow out diagrams for these diesel pumps?
Thank you super video
How did you depressurise the HP pump, whats the best method?
Just loosen the metal pipe from the pump to the common rail. As soon as 1 drop comes out, the pressure will be gone. Or wait 5 mins or more after stopping the engine. Pressure drops by itself.
I keep hearing that these pumps through metal when they start going bad. Where does this metal come from ans what do you do to fix this?
When you find any metal shavings inside the pump, you'll need a new pump. Seals wont solve anything if the metal is damaged.
@@davidelliott5843 no metal. And cp3 pumps don't produce metal
Hi, one question, once you have the pump removed, how do you install it? do you need to callibrate it or something? or just put it in place and put the bolts. Thanks you
Mark EVERYTHING!
Can you go into more detail about flushing the pump through with diesel at the end. Which pipes do i leave off. Or do you connect them all but leave it unattached frm the engine?
connect the 2 plastic pipes from the fuel filter. Leave off the metal one going to the high pressure fuel rail. (optional - take out the glow plugs to make turning the engine over easier) Find a way to collect the fuel coming out of the metal pipe on the pump. Use a rubber tube, angle a plastic bottle. Lets loads pump through. I think I disconnected the pipe from the High pressure bar, loosened it at the pump end, moved the end around for easy access, then tighted it back up at the pump (if that makes sense) it was easy to collect the fuel into a clean bottle and put back into the tank. Let plenty flow through, you don't want any dirt getting to the injectors.
just leave off the metal one, that connects to the common rail. If you remove your glow plugs, you can turn the engine longer without flattening the battery. I did it for a minute I think. You don't any rubbish getting to the injectors, EVER :)
i have e 270 cdi 1999 dosnt start at cold i chang the heting glue plug and i test it every thing ok but not start when it cold until i put starter like petrol or some thing in medafold what is my car problem plz if you can help
Does the engine turn over faster than usual? if so, could be compression issue. Check the inlet manifold is't coked up. Also air pressure sensor
Your diesel injector's is dead . Had the same problems many times.
check you have volts and amps going to each glow plug - put a lightbulb in place of the glowplug and make sure it comes on for each glowplug connection. If they do, then check engine compression, or leaks from injectors.
Good job!!!
Can you write the link of the o-ring kit? I can't find it on line.
Thanck's!!!
R.
www.ebay.co.uk/itm/161888498929?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
this is what I bought
link is in the description now.
hello can you tell me wat kind of ,i need to order to reapir my pump for my mercedes c200 cdi w203
Sorry - I don't know those cars. If it looks like the one in the video (3 compression chambers) then it is probably the same one.
Its not the same one you can find the correct one on autodoc or similar websites to find your pump
@@dagurorarinsson2827 it is physically the same pump on a w203 although a c200 will most likely require more pressure than a Corsa so in that sense it may be a different spec but anyhow, Mercedes can supply the HP pump seal kits. Be careful though - on a Mercedes, the HP pump creates a venturi effect in the tank that draws fuel from one side to the other, if the HP pump is weak the car might appear to start and run OK but say on 1/4 tank of fuel (maybe 100 miles range) it will appear to run out of fuel. So this is also HP pump failure - I'm not sure a simple seal kit will cure this.
@@moonkef hi, yes it is the same body but the fuel line locations are different :)
Ye nice video h but isko hindi me bhi bnao
hi I am fixing a pump like this. how did you remove the plastic pipe on the side of the pump? I tried pulling it out but I wasn't able because I was afraid to broke the plastic pipe.
the external rubber/plastic pipe. Remove the metal clip holding it on to the pipe. If you are referring to the plastic elbow on the pump. there is a torx screw holing it on. But there isn't a need to remove these.
Hello mate. Did it solve the problem?
yes. It starts now and I can drive it up hills faster than 35mph.
Yes - started perfectly, all the power and revs back. Going up hill, all super awesome.
Can you give me the blueprints for the design of this type of pump. Please
I only have the pictures you see in the video. Found by a quick google. The whole thing is pretty simple to be honest. No fancy electronics...
would love to, but don't have, sorry.
Hey, can you give us a link to where we can buy this rebuild seal kit?
link in the description - Fleabay (Ebay) is your friend.
Super