Geoff Weeks

It might have been Loves 🤔 Yellow/orange limited service! Spokes I could always do faster cheaper myself. If it is 90 deg a humid and I have an inner disk wheel, I am not doing that with hand tools if I don't have to.

Bozeman/Belgrade area has grown a lot. Location near to Yellowstone and the headwaters of the Missouri and the climate is better then other areas in Mt along with University and medical options all make it an attractive to "suburban" type growth. If you like living out by yourself it is a nightmare, if you want suburbia in a rural state, you'll feel right at home. Mostly populated by people from outside the state. I think I remember hearing it was one of the places in the US that was growing the quickest.

If you want to blow Pilots mind, show up to their shop with a Tube Type Disk (Budd) wheel and tire! They will not work on spoke wheels and can't comprehend that disk wheels can be tube types! Fun entertainment for a tired truck driver.

Ok do you need an 7/8 shaft alt pulley as well?

I can mail it to you, but do you have the pulley behind the damper to drive it off of? is the block drilled for the mount? I know all Big Cams have whats needed , but not sure on the early stuff. I'll pull it off and put it in a box, PM me with the address. Yours for the postage.

Yes, I would have to agree it is night and day. I could search out parts for my 30-40 year old tractors while on the road, and by the time I was home the parts were there waiting to be installed. Imagine before the internet going to a parts house and asking for the rubber gasket (or spool valve) for a Bendix MV-2 multi function valve. Getting a blank stare from the counter person. "We sell new ones", for a $13 part. Today the manuals are on line in .pdf form and the part numbers are listed so you can do a parts search for someone who has the part. I had an easier time getting parts for the same truck when it was 30 years old then I did when it was 6 years old, while that doesn't make any sense, it is the truth. I once got a complete set of 6 rebuilt injectors sealed in shipping box for $156 for the whole set, no core charge! I'd pick up gasket sets for pennys (remember those?) and throw them in a drawer, after a while I had several complete or mostly complete sets to use as needed.

A word to the wise, make the mount 2x-3x more stout then you think it needs to be. Delco recommends 3/8" plate for making mounts. I found that it needs to be at least that thick and firmly mounted to the engine to prevent it from breaking. As I stated earlier, you can keep that rebuilt generator as is and it will do the job just fine.

Ok, I am mixing up two people with old Red Macks with Cummins in them! I have Big Cam mounts that are yours for the postage but don't think it will work with your set-up

I might have a Big Cam alternator mount. what does your big cam have on the front of the engine. Big Cam 3 should have duel belt sheeves behind the damper for alternator drive. am I mixing you up with another guy who has a Big Cam 3 and you have an old Cummins?

https://www.shopzorkos.com/Category/5116T this is close to what I had. The one I had bolted directly to the back of the alternator, this one is remote.

Those large case generators aren't that common anymore, and in my mind are of value. I have 2 12 volt and 1 6 volt so don't need more. If it were I, I'd keep the generator (period correct and 50 amps is plenty) as it will work just as well on either polarity. But that is just me.

yes. Both Delco and Leece Neville used to make duel output alternators that would allow you to eliminate the Series/Parallel and keep 24 volt cranking and 12 volt for everything else. The Delco is still available (Delco 30SI-TR) but I only see it in negative ground. 40 years ago I had the part to convert that JB2500 to the same, but it is long gone. I haven't seen the JB kit since I had the one I had. Series parallel seams to "throw" people as bad or worse than positive ground. https://smithcoelectric.com/products/240-821-new-alternator-for-delco-30si-12v-90a-with-24v-transformer

You are 100% correct the case is neutral on the JB series. so the positive goes to the frame on a + ground truck and the negative goes to the truck wiring. The internal voltage regulator doesn't care as it is isolated from the alternator frame and gets its power from the + and - stud on the alternator itself.

BTW is Dennis Kirk gone? I have a few of the older catalogs but haven't tried to find them on the web.

But think of the enjoyment reading those catalogs and dreaming about what we would get when we had enough coin saved! In some ways looking for parts for these older trucks is as much a treasure hunt as it was in the old days sending off and waiting for weeks for the parts to come.