RE: [ihc] RE: David's timing

["Mac McMuffin" <mac@xxxxxxxxxxxx>]

## >> Bzzzzt! Not ;). Timing marks are on the flywheel. There is a
## >> flip up cover
## >> on the front of the bellhousing, driver's side top, next to the engine
## >> block. IIRC, one of the marks is an 'o', the others are just
## >> dots. I can't
## >> for the life of me recall if the 'o' is TDC or the preferred timing or
## >> something else. It does show this info in the operators
## >> manual. I would set
## >> it for best(highest) idle RPM and call it good.

i just opened up my B series Operator's Manual to see where it says what Jim
says it does.  it's on page 28, and it's pretty clear.  there's a picture of
the little cover, plus the marks on the flywheel.  the book also has a lot
of information on all the available engines, transmissions, usage,
maintenance, etc.  very useful manual.  i highly recommend picking one up if
possible for each truck or truck type in the fleet.

as you're looking at the marks, there should be a little "0" with two dots
on one side and one dot on the other side.  the "0" is 6 degrees BTDC, the
single dot is 9 degrees, the first dot on the two-dot side is 4 degrees
BTDC, and the second dot is 2 degrees.  this manual says to time the BD264
at the second dot from the "0", or 2 degrees BTDC.

on the idle issue, i was never able to get my BD to idle reliably or
smoothly below about 550rpm (despite what the manual says it should do).  i
rebuilt the carb twice, set the timing, points, everything i could think
of...  it was a no-go.  i generally kept it around 600rpm or so and it did
just fine.

--Mac

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Krystof "Mac" MacBryghde
TyrGothi

http://master.triad.ath.cx/
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