BD240...waking it up after 12 years

71mtnscout

71mtnscout

Member
Bought a 58 A-120 with BD240 in it. Getting ready to wake it from a 12 year nap, is there a "procedure" to waking it up like on the SV engine?
 
No written procedure on the old IH sixes but if you've seen the V8 version the principles are the same.
 
The basics are a bit of oil of your choice (I like Marvel Mystery oil) down each cylinder and remove the distributor and spin the oil pump until you get pressure.
 
I had a B160 dump truck for a while with a BD264 in it. The truck sat alongside the road for 8 years, we got it running in about an hour with no special procedures. Used the truck for several years after that and the engine was surprisingly powerful for being a "little" 6.
 
New question....I took the word of the seller on the engine. I cleaned the pad today, and found it stamped BG241 or BC241? And also, I can't seem to find anything on the firing order or dist. diagram. I tried the "point the rotor at #1", but that isn't what's happening. According to the cap, looking down on it, #1 is at 8 o'clock and the piston position is at a TDC position.

Ordered a line set ticket and manuals this morning, so it will be a while before I have the info in my hands. In Idaho on vacation (750 miles from home), found it in Post Falls at Binder Bash, so I wasn't really expecting to buy another IH. Was just trying to get it running to access conditions and plan for what's next. If all goes as planned, we'll be back up around September, till the snow flies and able to devote most of my time to it.
 
Look at the coil, if the wire going to the distributor is connected to the - terminal it is a negative ground system. My B160 was negative ground.
 
Saw that, but you know how people are. The battery wires are black to the starter and red to the manifold, everything else I looked at said negative ground. Chasing a "no spark" issue right now, everything is crispy and old, I'm headed out to get a tune up kit in a bit....plugs, wires, cap, rotor, points, and condenser. If someone before me put the battery in as positive ground and attempted to start it, who knows what condition the condenser is in. I could probably snap the plug wires in half they're so stiff....lol.

off to the parts stores.
 
Originally, a 1958 would have had a BD240. Sounds like someone has replaced it with a BG241. Basically the same engine, but newer. Firing order is 153624. As far as #1 being at 8 o'clock on the distributor, that sounds about right, but whether it's 7 o'clock or 9 o'clock doesn't matter. The point is to get #1 cylinder on TDC, being sure it's on the compression stroke. At that point, the rotor will be under the post on the cap that will be your #1 cylinder. The distributor will turn counter clockwise, so #5 will be the next plug wire going counterclockwise from #1, etc. You won't be able to follow a SV procedure for pre-oiling. Most engines drive the oil pump from the distributor, so you remove the distributor and spin the oil pump with some attachment on a drill. The SD, BD and BG are different in that the cam drives the oil pump, and the oil pump drives the distributor. Spinning the oil pump isn't an option for pre-oiling.
 
PaulH said:
Originally, a 1958 would have had a BD240. Sounds like someone has replaced it with a BG241. Basically the same engine, but newer. Firing order is 153624. As far as #1 being at 8 o'clock on the distributor, that sounds about right, but whether it's 7 o'clock or 9 o'clock doesn't matter. The point is to get #1 cylinder on TDC, being sure it's on the compression stroke. At that point, the rotor will be under the post on the cap that will be your #1 cylinder. The distributor will turn counter clockwise, so #5 will be the next plug wire going counterclockwise from #1, etc. You won't be able to follow a SV procedure for pre-oiling. Most engines drive the oil pump from the distributor, so you remove the distributor and spin the oil pump with some attachment on a drill. The SD, BD and BG are different in that the cam drives the oil pump, and the oil pump drives the distributor. Spinning the oil pump isn't an option for pre-oiling.
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Thanks Paul
 
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