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+--- Thread: injectors NA35X NA36X (/showthread.php?tid=818)
injectors NA35X NA36X - oel_brenner - 11-06-2009
anyone know the differences between these two ?
NA35X = OM603.97x (3.5L)
NA36X = OM603.96x (3.0L)
are the pre chambers the same ?
also mention of some head version issues here..
http://bit.ly/32D8M
http://bit.ly/32D8M
RE: injectors NA35X NA36X - ForcedInduction - 11-06-2009
Bore, stroke, crankshaft, rods, prechambers, injectors and IP governor tuning.
All OM601/2/3 engines from 1989 got the angled injector upgrade. Older engines can be converted to the new prechambers and the cylinder heads are interchangeable but the angled injectors use a different thread pitch to screw into the prechamber collar. The angle increases air swirl and improves air/fuel mixture.
RE: injectors NA35X NA36X - oel_brenner - 11-07-2009
so the injector sits in the pre-chamber at an angle?
or the entire head is different ? (injector/pre-chamber seat is cast at angle)
RE: injectors NA35X NA36X - ForcedInduction - 11-07-2009
The prechamber. The 3.5L engine's head is different, only in that they use the much better 20 or 22 casting instead of the weak 14/17/18 casts. It will bolt to a 3.0L block without any modifications that I'm aware of. I know several people have done a 3.0 retrofit to a rod-bent W140 using the 3.5L's head.
RE: injectors NA35X NA36X - oel_brenner - 11-08-2009
(11-07-2009, 09:44 PM)ForcedInduction The prechamber. The 3.5L engine's head is different, only in that they use the much better 20 or 22 casting instead of the weak 14/17/18 casts. It will bolt to a 3.0L block without any modifications that I'm aware of. I know several people have done a 3.0 retrofit to a rod-bent W140 using the 3.5L's head.
thanks forced.. as usual, you are the wealth of information
