Re: nissan diesel bellhousing

[eldon_mcf@domain.elided (Eldon L McFarling)]

<<If I am correct the nissan diesel uses one of the sae bellhousings. 
Anyone
know which one?  Thanks.

Greg Marshall
71&79 Scout II's>>

    Greg,

     You are correct the Nissan SD-33, and SD-33T engines used in the
Scout applications use a SAE # 4 flywheel housing, which mates to a SAE#
4 bellhousing used with the manual transmissions. The Chrysler 727
automatic transmission for the Diesel Scout also has a transmission case
with a matching SAE #4 bolt pattern.

    While we're on the subject  I found this last nite  in the mess of
old mail and digest's I'm trying to sort thru:

<<  Subj:	 Balls and Bells
Date:	97-11-19 07:09:26 EST
From:	rustnrot@domain.elided (Tom and Amanda Lang)

<snip the ball part>
>Date: Mon, 17 Nov 1997 21:22:27 -0800
>From: "Allan Weidenheimer" <allanw@domain.elided>
>Subject: DV550, FS ad
>
>Does anyone know if the DV-550 diesel and other DV series engines
>have the same bellhousing pattern as the 304/345/392?

Good Question, but I suspect the diesels are like the 7.3L as used in the
Ford Pickups, i.e. SAE #2 housing (Ford uses an adapter to the tranny).
What I have gleaned so far is apparently SAE has a number of "standard"
bellhousings, e.g. the Nissan Scout Diesel is #4 SAE housing compatible.
These are basically "circles" of varying diameters.  One application that
comes to mind is the manufacturers of electrical generators (and others
I'm
sure, like pump manufacturers, for e.g.) need to have a standard "circle"
that is "bolt compatible".  ***Eldon, are you out there, do you
concur?***>>>>

   Tom, 

  Sorry I missed this when it came thru the first time, (i had been
having alot of delays w/AOL). 

    The SAE standard mountings are basically a set of standard dimensions
that each  manufacturer uses to make their engine, trans, pto, generator,
etc..compatible with whatever they might want to attach to. They are SAE#
x = xx" from the face of the flywheel, xx" pilot diameter, xx number of
xx size bolts, etc.. Each manufacturer then can build their equipment to
fit these dimensions. This is how most medium and heavy trucks are
assembled. For example  customer 1 needs truck A with engine B, and
transmission C for a particular application, customer 2 needs truck C
with engine A, and transmission D, the truck manufacturer can assemble
the components to fit each customers needs, since the engines,
transmissions, etc.. will  fit the standard mounting dimensions. 

    For the 7.3 in Navistar truck applications, a SAE #2 housing is used.
For Ford pickups, vans, etc.. a adapter is used between the engine, and
transmission that mates the engine to Ford's transmission pattern, so
their original transmissions will fit.
 
Eldon McFarling
Ceresco, NE
'80 Scout II Turbo Diesel
Eldon_McF@domain.elided
IH SCOUT DIESEL PAGE    http://members.aol.com/EldonMcf/scoutd.html