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D5252t 2.5 tdi fuel pumpViews : 685 Replies : 9Users Viewing This Thread : |
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Aug 4th, 2021, 15:19 | #1 |
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D5252t 2.5 tdi fuel pump
Anyone have a spare manual gearbox version fuel pump for an 850/x70?
Mine decided to seize after being sat for a few years, not sure its worth rebuilding it as its had a life! Thanks |
Aug 4th, 2021, 16:18 | #2 |
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As far as I know the pumps aren't transmission specific.
They may be a difference between earlier stuff and the 99 and 2000 model years though. |
Aug 5th, 2021, 00:05 | #3 |
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I'm not sure they are on these electronic throttle versions, but on the older manual cable ones that you see on loads of other diesels from that time they are quite different inside.
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Aug 5th, 2021, 10:58 | #4 |
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Internally the Bosh ve is relatively simple in its makeup.
Sprocket driving an internal piston as a simple explanation. I know these very well ..hell I should do as at last count I had 10 tdi's. Very very unusual for a pump to seize on these...Aircon compressor well that's another story. So I presume car doesn't turn over or has snapped the pump belt? |
Aug 5th, 2021, 18:35 | #5 |
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Not seized seized, but turning it by hand after 2 years tucked away in my workshop it feels a lot stiffer than before. Almost need a wrench to turn it over, barley possible by hand, can feel the injection spikes as a mechanical dry notch, and then onwards to the next one.
Engine with no injectors in turns nicely by socket, with injectors on, no aux belt, no fuel belt it makes 26 bar of compression across all cylinders (fresh rings, bottom end, cam and valve set). With no aux and no fuel belt but injectors in it makes the right sounds and turns over fast and consistently on h the starter. Put the fuel belt on it and time it up and iys a different story, defo slower to turn over and gets slower after 30 seconds of turning as if something is heating up and seizing. Will run but only with throttle attempts to idle but literally sound like it wants to rip its brand new belts apart. Rubber smoke coming off the cam belt. Water pump super happy, re did the tension on the cam belt (crank harmonic off and back on with yet another new bolt) and exact same so it's not over tightened on the cam belt. Cam itself is new, checked on the bearings with no hydraulics on it, torqued down and tested would turn over like butter by hand with no determine end float (perfect). So yeah, leaves the fuel pump which just doesn't feel right to me at all. Timed dozens of these and never had one feel as draggy as this one now. |
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Aug 5th, 2021, 21:58 | #6 |
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Thanks for the reply. You've clearly got a handle on it.
Nice to have a discussion with someone who understands these as most are clueless.. Even the so called forum mastertech doesn't have a clue in my opinion.Usual Drivel regarding Volvo waterpumps lasting forever.. It's an Vw engine ffs with 4 rings and a Vw badge on it.. and yep Vw changed em with regularly. So you know that a Dti is the only way with a Tdi then 😜. Will check on the pumps (Manual vs Auto) fittment on some of mine if that helps. Cheers Last edited by rudi dudi; Aug 5th, 2021 at 22:06. |
Aug 6th, 2021, 11:48 | #7 |
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I can confirm the TDi's are not transmission specific.
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What's the matter with the car I'm driving? Can't you tell that it's out of style? Should I get a set of white wall tires? Are you gonna cruise the miracle mile? |
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Aug 6th, 2021, 12:25 | #8 |
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Thanks for the conformation.That was my understanding of It aswell.
Think the early stuff vs 99/00 My may have a difference in the elecrrical side for the fly by wire throttle. There were quite a few differences in the 99/00 models in general. Srs,Fuel filter housing,Maf to name a few. |
Aug 11th, 2021, 07:50 | #9 |
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Cheers guys, sent mine away for a rebuild, will be more than just seals, and needs to be calibrated properly tbh. Price not terrifying so long as they can do it and there isn't internal damage (scuffing to housing from whatever was causing it to be so stiff).
The 99/00 and p2 cars get weird so many odd things on them. Waterpump is specced by volvo, so it's vw shaped but with a different type of bearing in it, prob would last forever if folk used exactly right coolant and kept changing it on time, but when does that every happen Seen so many of these cars ruined by garage that don't know how to do cam/fuel belts and timing properly. Was a mint sub 100k example near me, twice I put a note on it saying I can do the belts if they need done, he got it done at a garage and low behold, smoke /knocking like crazy the last time I saw it, and now it's abandoned on his drive, inside and out is mouldy. |
Aug 11th, 2021, 09:12 | #10 |
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Agreed.. Except for the waterpump..Had one of mine from new and I had the privilege of doing its 1st ever set of belts along time ago in 2003 .
The original waterpump from the factory didn't have a single Volvo marking or part number stamped into it.. It did however have 4 rings and a Vag number on it along with INA and it's number. So the original waterpump way back in the 90's was indeed manufactured by INA and Literally lifted out the Vag parts bin. |
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