DDO173 Posted August 20, 2011 Share Posted August 20, 2011 Having just replaced the injector nozzles on my engine as they were well past their best, things have improved a bit. However.... I still have a fair amount of black smoke puff on startup and although it runs well its still not optimum. Now that I have ruled out bad fuel atomisation with new nozzles (timing was adjusted too) I suspect delivery and governing on my pump may not be at its best. What I would like to know has anyone rebuilt one of these Bosch VE pumps. Seal kits are readily available but a complete strip down, clean and reseal its not likely to bring a pump back to optimum working conditions - is it?! the timing scroll ring may just be sticky? I used to work for Delphi and have have had experience stripping and rebuilding a number of their DP series of pumps so have general rotary pump experience. I am tempted to get a used 'temporary' pump and have a go at rebuilding mine. Do we have any experienced bosch service centre engineers on the forum that may be able to offer some advice as to what pitfalls, likely wear/failure points to look out for in these pumps? Any other words of wisdom would be useful too! Quote Link to comment Share on other sites More sharing options...
western Posted August 20, 2011 Share Posted August 20, 2011 not a DIY at home job, diesel injection kit is built to fine tolerances, so the slightest bit of dirt could make it scrap, get it rebuilt, tested & set by a bosch diesel agent, then you have a good tested unit & above all a warranty for a certain period. Quote Link to comment Share on other sites More sharing options...
DDO173 Posted August 20, 2011 Author Share Posted August 20, 2011 I am fully aware how much of a precision engineered piece of equipment they are and naturally if I attempt it I would carry it out with meticulous cleanliness. I have ultrasonic cleaning equipment and further more as I mentioned before I know the procedures for rebuilding FIPs, just no direct experience on the VE. As an engineer I have carried out many operations in the past that are considered specialist only, and with success. The driving factor is that specialist recon is in the region of £500 which if that was the bill for sone crash damage on this age of vehicle it would be close to being a commercial write off. Quote Link to comment Share on other sites More sharing options...
western Posted August 20, 2011 Share Posted August 20, 2011 this might help http://www.scribd.com/doc/19099617/Bosch-Ve-Pumps Quote Link to comment Share on other sites More sharing options...
Les Henson Posted August 21, 2011 Share Posted August 21, 2011 I can't remember anyone posting up on here on rebuilding an injector pump, so you would be the first I stripped an old one once - just out of curiosity, and there were loads of scary parts and the need for special tools, so I gave up and now it's a 'shed ornament' If you could do it and post up some pictures, that would great. Les. Quote Link to comment Share on other sites More sharing options...
DDO173 Posted August 21, 2011 Author Share Posted August 21, 2011 If I take the plunge I will certainly document it for my own purposes as well. As an additional challenge, with mine being a late vehicle it has DDS fuel stop solenoid arrangement on the back that is secured by what look like shear bolts. Have done a lot of reading of the bosch manual and made some tweaks to my pump (now I understand more clearly its internal method of operations and what the adjustment screws actually do) and its seems to run a lot better so will see how it goes - if a 'spare' comes along at the right price I may give it a go. Quote Link to comment Share on other sites More sharing options...
piper109 Posted September 29, 2011 Share Posted September 29, 2011 You would be hard pressed to do a better job of documenting than this link. Not exactly the same IP but close enough. http://www.forum-auto.com/pole-technique/mecanique-electronique/sujet293129.htm Of course you might have to get out the ole french dictionary. Steve Quote Link to comment Share on other sites More sharing options...
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