BD 240 HELP

Hello I am hoping someone can help me figure out the mystery of my engine. I have been rebuilding a 1956 International BD240 and it has been a nightmare finding parts. I have gotten everything gathered up and just had a new (to me) crank turned to match my .010 bearings. When I went to put the rings (I ordered a STD 3 ring set) on I discovered someone had bored this old girl out .40 over at some point. So not only with the standard rings not work but someone put in a piston with 4 rings and it is original a 3 ring piston. I need to figure out what the pistons came out of so I can get .40 over rings. Where do I start?? The piston is 3.916. If anyone has a jump off point I would appreciate the help!!! Thanks!

Mountain, give a little time for folks to catch up with you. Can you return your set of standard rings? If not perhaps someone on the board would be interested in them. Not sure where you can get 40 over rings. Is your block all torn down at this point? If so, you might look to a re-sleeve of the cylinders. Not sure how much that would run. Like I said, give them time to post up.

Welcome to the Group! Pictures are always looked forward to, we like pictures. If you run onto any problems let me know.

Lloyd

Thank you for the post. I am putting out any feelers that I can. I have invested a ton of $ and time into this engine and am so close to getting her back together. The rings are the last piece of the puzzle and I didn't know it had been bored prior to my ownership. I just want my best friend running again! Thanks again for the post and have a great weekend

MTN
Tioga Pa

Why not just get the correct rings for each piston? The piston change from 4 to 3 rings is determined by engine serial number. Both use the same rod and since pistons are not always easy to find especially OS the simplest thing to do would use the one "oddball" piston. (I'm sure others will disagree with that )

Here's some links...

Hastings piston rings
http://www.hastingsmfg.com/Master_Catal ... er2012.pdf
They list both type,also American Hammered does and uses the same pn's. Not sure of OS sets.

Topic from another forum with lot's of good info
http://www.binderplanet.com/forums/show ... php?t=9855

The MT-97 (R-series) engine section/Group 12
http://www.hansenwebdesign.com/truck/fi ... ngines.pdf

(SD/BD240 internal crankcase parts are the same).

Mahle/Clevite IH engine parts catalog
http://www.mahle-aftermarket.com/C12579 ... -08web.pdf

Above can be a bit confusing,pretty crapy format.

This is what I got trying to Google the 3 ring .40 OS piston using IH pn from the MT-97;
https://www.google.com/#q=79334R11+piston
That means it has never been posted anywhere on the web.
Got the same for the BG241 OS piston.
Tried all the OS pn's and got the same.
The only

BG241 .40 ring set 173163R91 (does one piston)
http://www.machinerytrader.com/list/Par ... =173163R91


Another possible source is an AG engine piston(?)
You could look thru these search results...
https://www.google.com/#q=IH+BD240+piston&start=0

The AG division may have used different pn's but I have no way of checking. Since the Hastings catalog lists all IH engines it might help by matching ring set pn's?

OK. there were 3 guys up here in WA. that sold gaskets, valves and rings respectively,

I talked to Olson of http://www.olsonsgaskets.com/Default.aspx he told me the guy who sold the rings passed away a few years ago,

but his inventory was purchased by Dave Reed, 410-398-7340 he has a ring for any piston from 3/4" diameter to 4' diameter,

but what you need to have ready for him BEFORE you call, cylinder bore diameter, number of rings per piston, size of ring (thickness) and possibly inset depth into piston,

he does rings by size if the application isn't available, also because you never know if the pistons you have are from something different all together but fit.

I bought rings from the previous owner now deceased this way for my 1937 Diamond T truck, they fit perfect.

sometime you gotta go outside the box to get in the box.

good luck with your project.

By the way Olson has your gasket set if you need it.

Mountain,
Do you have standard altitude pistons? Is there part numbers on the pistons?
I checked, all I have is STD--0.30 ring sets
kevin

I will have to run up the shop that my engine is at and gather up this information. Thank you all for the information. I think this will get my project back on track. I will let everyone know when I get a resolution and what worked. I love International but what a pain it is when you need parts! Thanks again!

MTN

Mountain, These Part Number may be handy.

That is an amazing resource! I am going to start calling tomorrow morning to see if I can find a set of .40 over rings for a 4 ring piston. That document may have just saved me a ton of trouble. Thanks again!

The pn for the .40 3 ring set is a misprint,it should be 173163R91.
That is one of the #'s I did a search for and came up with ZERO,ziltch,nadda. It's high;y doubtful you will find IH OS rings in anything but standard.

Best to try the aftermarket mfrs. or the guy Jon suggested.

Or Contact Hastings,the way I interpret the page below you can by rings by size,individually and it may be possible to order a custom set(?).
https://www.hastingsmfg.com/ContentData ... ntentid=61