Bosch VE parts? - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old July 6th, 2016, 09:08 PM
PabloCocito's Avatar
PabloCocito
Status: Offline
Pablo Cocito
1987 Defender Tithonus
Member
 
Join Date: Oct 2014
Location: NoVA
Posts: 384
Bosch VE parts?

I want to buy a new spring for the fuel pin rather than just give it less travel by turning the star wheel, anyone know where I can buy one?

It's on a Defender 200tdi.

Thanks!

Pablo
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old July 6th, 2016, 10:52 PM
carlosz's Avatar
carlosz
Status: Offline
Carlos
frank stein "frankie" in action RIP
Member
 
Join Date: Jun 2006
Location: east coast
Posts: 960
Registry
try Scott at united diesel on general washington drive of edsall rd.
__________________
the truck ran like a "raped ape"
A fussy warm weather creature...
Reply With Quote
  #3  
Old July 6th, 2016, 11:01 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 9,226
Registry
What are you trying to accomplish? The star wheel sets the spring pre-load, thus it sets at what pressure the pin starts to move. It does not affect the travel. A spring can't "go bad", so sticking in a new one of the same spec will do nothing. Are you trying to find a spring with a different rate?
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old July 6th, 2016, 11:20 PM
PabloCocito's Avatar
PabloCocito
Status: Offline
Pablo Cocito
1987 Defender Tithonus
Member
 
Join Date: Oct 2014
Location: NoVA
Posts: 384
I was told that springs will soften up with time and change the fueling rates when building boost, but I guess not? My truck smokes when it's building boost, but once boost is reached it stops smoking, and if I get on the gas hard again it'll smoke until boost is built up. A weak spring makes sense as its only when I first accelerate.
Maybe I just need a good pump tuning but I have no idea how...


Sent from my iPad using Tapatalk
Reply With Quote
  #5  
Old July 6th, 2016, 11:26 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 9,226
Registry
A spring can't change rate. You can reduce off boost fueling to lower smoke when not on boost. The first thing to back off is the external adjuster on the top of the diaphragm cover. That will reduce off boost fueling with no effect to on boost fueling.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
  #6  
Old July 6th, 2016, 11:43 PM
PabloCocito's Avatar
PabloCocito
Status: Offline
Pablo Cocito
1987 Defender Tithonus
Member
 
Join Date: Oct 2014
Location: NoVA
Posts: 384
The smoke only comes on when boost is starting to build up, but once I'm holding a steady, say 10psi there is no smoke, or very minimal, but when it's ramping up to that 10 psi it smokes a decent amount, unless it builds pressure very slowly then there's no smoke.


Sent from my iPad using Tapatalk
Reply With Quote
  #7  
Old July 6th, 2016, 11:54 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 9,226
Registry
You can only adjust what happens at full throttle and there is not really any way to be at part boost and full throttle for any period of time.

You are saying there is no smoke at full throttle below 1500 rpm where you can't make boost?

Raise the star wheel (counterclockwise) to increase preload so that the boost pin moves a bit later if you want to reduce partial boost fueling.

There is always some delay. The turbo can only produce boost with enough fueling and the fueling only increases after there is boost.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
  #8  
Old July 6th, 2016, 11:56 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 9,226
Registry
You have to also watch what is you peak boost. The stock 200 spring with limit stop maxes out around 12 psi. Above that you get no more fueling increase. If you run smokeless at 15 psi you need to be overfilled at 12.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
  #9  
Old July 7th, 2016, 12:39 AM
PabloCocito's Avatar
PabloCocito
Status: Offline
Pablo Cocito
1987 Defender Tithonus
Member
 
Join Date: Oct 2014
Location: NoVA
Posts: 384
I'll try to turn the star wheel clockwise and see if that helps. If I'm at 1500 rpm and floor it it'll smoke, and then if I back out a little bit and hold it there then the smoke clears up

Peak boost is 12-12.5psi


Sent from my iPad using Tapatalk
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Anyone have the turn signal Wagner/Bosch part number? arbik Defender Technical Discussions 5 February 2nd, 2008 10:33 AM
FS: D-90 Bosch AMR 4247 Alternator dzientek For Sale - Parts 1 February 8th, 2007 07:15 PM
Bosch 4.6 Engine FOR SALE RedRhinoProducts For Sale - Parts 8 February 21st, 2006 10:53 AM
GEMS or Bosch boxerhips Defender Technical Discussions 34 January 5th, 2006 05:25 PM
Bosch Alternator tmore Defender Technical Discussions 0 April 9th, 2004 11:46 AM


All times are GMT -5. The time now is 03:17 AM.


Copyright