Specifications on Hardware Parts for tractors...HELP

Would anyone happen to know where I can get certain specifications on parts for a Super A-140 tractor as well as the Cub tractors?? I use the CASE/IH website to locate parts when I am putting tractors back together, however if I want to purchase common parts (bolts, springs, etc); the parts breakdown doesn't list the specs on all of them. With brake return springs at $10.00 on Ebay; it would get a little costly when I ordered 40 springs. Same with the other hardware. I always order that stuff from the local hardware supply store, when I know original specs.

For now, I am wanting to order the brake and clutch pedal return springs (the CORRECT ones), and would like to know the specs, and how to identify the correct spring (spring terminology & specs) so I can purchase them bulk at a general "spring distributor". THANKS GUYS

Couldn't you just take the originals to your spring distributor?

Vito

Springs and specialty fasteners are in almost every case special. Thus a replacement is going to be an approximation of the real thing.
Springs are rated in terms of rate, and physical size. This includes wire size, pitch (variable or fixed) coil diameter, end configuration, compression, or tension, material, and heat treatment, flat wound and ground, and other designations. These are not available outside of the engineering prints, and would not be duplicable in 90% of the cases unless the spring was very valuable and not available OEM, or NOS, or used.
Many bolts and nuts are also in this category. Head configuration plating, shank diameter, thread length and class of thread fit, are all proprietary. Many common bolts are usable in replacement, but the Correct Police can detect them from 4 yards away. I have no issue using screen door springs for clutch/brake return, but that is me. I did not answer the question with sourcing, because there are none other than those we know. Jim

I apologize if I am not understanding your question. I use parts catalogs to get specs on hardware. For Cub tractors the catalog can be found on the Cub site. For SA/SAV I have a parts catalog here and would be happy to look up something if you drop a post on it. Others might too.

Unfortunately, for springs there is not a lot to go on. The diagram gives you a good picture if it is completely missing. The text more often than not just says "spring". My best efforts in this regard would be called trial and error. Buy a handful, try them out, return them what don't work.

Maybe I am thick about this but what exactly are you asking?????. Bolts come in different grades and threads. 2, 5, 8, 2 soft,5 medium, 8, hard. Look at the head markings and do a thread count. Then you know what you need. No head markings grade 2, 3 marks grade 5, 6 markings grade 8. If your looking for springs take one of the originals and take it to a shop and have them do either a pull test or compression test and see what range your working with. You can most likely find them around a clutch shop the ones your describing. They can most likely tell you what you need by looking at them. I hope some of us have answered your question but I'd sure like to know lol. LarryT

If you need 40 springs please email me. I can quote you a pretty good discount

When I went looking for brake return springs for my Super H, I could not find a spring that was an exact match for the original. Every spring was a little bigger or smaller around, was a little longer or shorter, had the wrong type of hook on the end, used a different diameter wire...

I searched industrial spring supply houses. I searched the Internet. There was nothing out there exactly the same.

Eventually, I settled for a standard spring off the rack at the local hardware store. In fact, I was able to make both springs out of a single $4 spring with a bolt cutter and a pair of vise grips. They work, and if you didn't know any better you wouldn't be able to tell the difference.

Frankly, I don't think you're going to find the scientific specifications of an OEM IH spring. IH didn't publish that information, presumably because they couldn't see a need for it. If you wanted a brake return spring for a 140, you went up to the parts guy and asked for a brake return spring for a 140, not a "30-turn, .156 diameter wire spring with a .6375 end hook and a spring constant of 3.6." (MADE UP SPECIFICATIONS)

If you want original, buy original. IMHO, it's under the platform; nobody's gonna see it if you use hardware store springs.

I could possibly take the original springs to the distributor, but when they are rusted in half or stretched halfway out, its hard to tell what it originally was. Plus, I have a "bucket of random springs" in the shop; many of which are close to the size of what came on the tractors. In my expierence, if the correct spring (or close to it) isn't used, the actual function it was intented to be used for will not work correctly with the "wrong" spring.

As far as bolts....when putting a tractor together that didn't have the bolts in the first place (either missing or I burnt them out with a torch), I would like to be able to look up on the parts catalouge (or somewhere else) to see what the original specs called for. Also, over the years, the bolts/fasteners may have been replaced with something different or incorrect to "get them by", and I would like to replace with what is needed. It would be nice if I had a source to go to that listed each bolt/fasterner for the tractor so I would know exactly what size, thread, & length to put back. Thanks for all the replys.