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  #1  
Old 02-14-2013, 04:31 AM
ian2000t ian2000t is offline
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Default 11 or 12mm pump head

I think I've pretty much maxed out my pump - turning it up any higher doesn't seem to create any more smoke.

I have a spare pump to rebuild with new seals, so I was thinking about upgrading to an 11 or 12mm head at the same time.

Are there any disadvantages to doing this? Does the bigger head have to come from a 6 cylinder donor car? If it does, I don't think there is anything in the UK i could rob that from...
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1990 Volvo 765 D24Tic (factory UK spec Tic). Monark 273 nozzles 163bar, Ajusa MLS gasket, 16psi, Water Injection, 17" Titans with 25mm H&R spacers, running 85% WVO/SVO.
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Old 02-14-2013, 09:21 AM
ngoma ngoma is offline
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Quote:
Originally Posted by ian2000t View Post
Does the bigger head have to come from a 6 cylinder donor car?
Yes, the distribution head needs to have 6 outlets for a 6-cylinder engine; this is where the injector lines connect.

#50 in the diagram below:

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Old 02-14-2013, 10:43 AM
ian2000t ian2000t is offline
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Right, pretty stupid question then eh? So, where can I get a 11 or 12mm head from? I read in the performance sticky that our pumps run the opposite direction so its hard to find something that will fit.
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1990 Volvo 765 D24Tic (factory UK spec Tic). Monark 273 nozzles 163bar, Ajusa MLS gasket, 16psi, Water Injection, 17" Titans with 25mm H&R spacers, running 85% WVO/SVO.
http://i103.photobucket.com/albums/m...AG0269-sig.jpg
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  #4  
Old 02-15-2013, 02:55 PM
jeremytap jeremytap is offline
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you should be able to use a cummins pump head out of a 89-93 truck.
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  #5  
Old 03-06-2013, 11:36 PM
Kraftwerk Kraftwerk is offline
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They are, also, running in the opposite direction...
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  #6  
Old 03-23-2013, 10:41 AM
jeremytap jeremytap is offline
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does it matter that the cummins spins in the opposite direction? as long as he hooks up the lines right it should be fine?
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  #7  
Old 03-23-2013, 01:26 PM
745 TurboGreasel 745 TurboGreasel is offline
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The fill ports in the Cummins plunger go the wrong way.

Some Scania trucks, and TAMD40 series marine engines might be donors. any pump having an L in the part number.
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Old 03-26-2013, 05:08 AM
ian2000t ian2000t is offline
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So am I right in thinking it wouldn't make a difference if you could make some new injector lines up? But making injector lines isn't easy because they need to be steel, not copper due to the pressures involved?
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1990 Volvo 765 D24Tic (factory UK spec Tic). Monark 273 nozzles 163bar, Ajusa MLS gasket, 16psi, Water Injection, 17" Titans with 25mm H&R spacers, running 85% WVO/SVO.
http://i103.photobucket.com/albums/m...AG0269-sig.jpg
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  #9  
Old 03-26-2013, 10:15 AM
ngoma ngoma is offline
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Plus they are very thickwall tubing, with difficult to make bell ends.
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  #10  
Old 03-28-2013, 02:26 AM
745 TurboGreasel 745 TurboGreasel is offline
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Quote:
Originally Posted by ian2000t View Post
So am I right in thinking it wouldn't make a difference if you could make some new injector lines up? But making injector lines isn't easy because they need to be steel, not copper due to the pressures involved?
With a unlimited tractor pull type engine, you might need bigger lines. Generic lines are sold in various metric lengths, and the ends are attached by the end user after bending, but i'm not sure how.
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