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				turbo conversion f70
				Posted: Sun Feb 19, 2006 1:19 pm
				by dai-hard
				hi i just got a turbo and manifolds and all the pipes etc  for my 2.8 rocky
my question is about the boost combensator valve on the injector pump.
mine doesnt have one  .Is there away around it ( eg aftermarket ) or am i going get a pump of a turbo engine. any help info would cool. 

 
			
					
				
				Posted: Thu Feb 23, 2006 10:18 pm
				by cooter
				u can get away with winding the full feul screw out a bit works with luxes
			 
			
					
				
				Posted: Fri Feb 24, 2006 5:59 pm
				by HotFourOk
				If you adjust a pump without the boost compensator...It will either go well on boost (at a certain psi) or off boost...
If you put more fuel in, off boost it would be over-fuelling, while on boost it might be the right mixture (at a certain boost level).. The compensator increases the fuel according to the pressure being supplied from the turbo.. whether it being none or up to 11-12psi
I would recommend having a look to find a pump with the compensator on it to save mixture problems.. as diesels are very touchy when it comes to fueling and running rich or lean.. causing EGTs to be wrong
			 
			
					
				
				Posted: Sat Feb 25, 2006 6:14 pm
				by lay80n
				Remember that diesels are the opposite of pertol, then overheat when run rich, not like petrol that overheat when run lean. Better off getting a boost compensator, that way your EGT will stay good through the whole rev/load range on your motor, both on and off boost. 
Layto....
			 
			
					
				
				Posted: Sat Feb 25, 2006 9:18 pm
				by dai-hard
				thanks heaps 

  been lookin for another pump found one off a late model 
but it was gear driven (mines belt) bit of a worry dont think that there were many early model (88/to when ever they change to gear drive ) so 
i might  have to see about after market pumps.
  
thanks   CRAIG
 
			
					
				
				Posted: Sun Mar 05, 2006 12:56 pm
				by coffen
				the early model deisel engines eg DL50 & DL50t where gear driven, the later engines eg DL51 & on belt driven. Because in these timing belt engines they moved the oil pump up to the front of the engines.
regards 
Michael