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+--- Thread: bosch plunger (/showthread.php?tid=9502)
bosch plunger - karl1989 - 04-01-2013
hi guys and happy new year.
i have been offerd a bosch setup witch needs a plunger and i was wondering are the plungers the same in the electronic bosch pumps?. thanks in advance karl
RE: bosch plunger - darrenjlobb - 04-01-2013
Indeed they are if you mean the semi ECU VE pumps... Not always if there VP 37 tho.
RE: bosch plunger - karl1989 - 04-01-2013
ah ok cheers for that
RE: bosch plunger - cwspellowe - 04-01-2013
OR..
go hunting for a cheap 10 or 11mm plunger. JOb jobbed.
RE: bosch plunger - karl1989 - 04-01-2013
witch is better. been told the 11 is smokey but mine is smokey on a 9mm anyways
heres the smoke
. smoking green dervRE: bosch plunger - cwspellowe - 04-01-2013
Depends how much fuel you throw in
You can run a leaner max fuel setting as there's more fuel injected per stroke, so theoretically you could run settings similar to the 9mm. Turn the fuel way up though and yeah, it'll smoke!
RE: bosch plunger - karl1989 - 04-01-2013
think ill go with the 10mm and get it tuned properly. any one fancy tuning when it done feel free
RE: bosch plunger - cwspellowe - 04-01-2013
I've been looking at 10mm heads too.
Have a look at the 90-something bhp VW's, a lot of them used 10mm heads but don't know which ones fit. Trial and error I guess,,,
RE: bosch plunger - karl1989 - 04-01-2013
ill go to the scrap yard and take a few apart
. just text the guy about the pump. think its in bits so will need building up 
RE: bosch plunger - cwspellowe - 04-01-2013
Not too complicated a job as long as all the bits are there. if it's been apart for long though check everything for corrosion, last thing you want is a knobbly cam plate or something
RE: bosch plunger - Harky - 04-01-2013
Probably not going to concern you if you're going for a different size, so sorry to hijack, but am I right or wrong in thinking that plunger, head and control collar all run such fine tolerances that they need to changed together as a set?
RE: bosch plunger - James - 05-01-2013
^ Correct