what size engine doese the ranger diesel have?

[SMOKEYDUB]

I picked up a ranger diesel pump with lines today for 40 bucks. From what i understand it should be a 10 mm pump its from a 84 ranger and the engine is made by mazda with a bosch pump. Before i waste time ripping it apart is it the 10 mm pump im looking for?

thanks

Jeff

[QuickTD]

There were 2 ranger diesels, here in Canada at least. The early models (82-84?) were 2.2L mazda/perkins naturally aspirated pushrod engines, 62hp or so, 9mm plunger in the pump. These were the most common by far. The pump is actually diesel kiki, made in Japan under license from bosch. Most pump parts are interchangable between the kiki pumps and bosch. The later rangers had an 2.3l OHC turbo diesel, not sure of the manufacturer, madza also? I've heard this engine has a 10mm pump, but don't quote me. Check the number on the side of the pump that begins with VE4/ the next digits indicate plunger size. A 10mm pump would read VE4/10.

[zyewdall]

The Mazda 2.2L NA was used in the Rangers between '83 and '84, and for '85 and onwards (till they stopped importing them), they used the higher power 2.3L Mitzi turbo engine.  It was also used in the '83 and onward Mitsubishi mighty max and Dodge D50  pickups (mine has the dodge tags on it).  Seems to be a good torquey engine, especially when the turbo kicks in. And yes, they are very rare in the US.  The emissions place here had never seen a Mitzi diesel before, and kept marking it down as an Isuzu.  I've seen a few for sale recently in CA and WA, one of which had a spare engine that came with it... wish I had gotten that one.  The Northwest seems to be the best place to find them, but unfortunately I haven't located anywhere good to get parts from yet.

Are you laying down black smoke with biodiesel?  Mine couldn't pass emissions on dino-diesel, but I switched to bio, and reset the fuel screw and timing, and smoke dropped to 18% of the limit (7% opacity).  The emissions guys were amazed.  Interestingly, the timing tools for the VW fit the injection pump fit this pump perfectly -- could it maybe be a bosch, or interchangeable?

[zyewdall]

Wow, I guess the turbo really does make a difference on this engine.  Good luck getting it going again.  Mine has great difficulty accellerating up hills from a stop (because when you try to upshift, it drops the RPM below the power band and it can't get back in), but if you hit the bottom of the hill at about 3,000 rpm in 3rd gear it'll go all the way up without slowing down, even with a good load of metal or bricks. I don't have a turbo boost gauge yet to see how much boost it's getting, but I guess it's enough.  Makes me want to see what difference a turbo would make on the 1.6NA VW engine.  This is also at 8,000 feet elevation.

[zyewdall]

Geeezzz.  I need to to back to my thermo notes and I might be able to make heads or tails of it........

[vwmike]

I just pulled this out of a quick google search, but it looks to have the necessary information:

http://www.gnttype.org/techarea/turbo/turboflow.html

It's essentially just a series of calculations relating to engine airflow and effciency relating to air density.

[veeman]

Here's another article on how to read the compressor maps...

http://www.motorgeek.com/phpBB2/viewtopic.php?t=2747

It gets pretty in depth...

[veeman]

Heavy math indeed...  I kind of tune out about mid-way through that.  

That site is frequented by a great group of Audi enthusiasts.  Very technically minded, detail oriented and pretty creative when it comes to modifications and swaps.  Worth a look for turbo / performance ideas albeit mostly applicable to gas engines...