Going to try and fire up the L900 dump truck I found, owner passed and the key whereabouts is unknown. Can anyone help with a wiring diagram of a key switch or better yet a whole L900? Yeah I realize this sounds sketchy, but who would steal a dump truck with a 401 gas engine?

I can find regular truck ignition switch diagrams for 1973 but not sure if they are the same as the heavy trucks. I should have took a pic of it last time I was there.

 

The key switch was probably used on all kinds of vehicles.

I will do a search tomorrow and see if I can find that info.

If you are going to run this thing I suggest getting one of these or a paper copy which you can find on e-bay.

https://www.hipoparts.com/1973-79-fo...ts-catalog-cd/

 

Thats what i am going to need. Hope to get it running first, make sure something big isn’t wrong with it. I don’t need another major project or another lawn ornament.

 

That MPC-on-CD doesn't have any electrical/wiring info. It's just two big PDFs of parts info.
The factory shop manual (vols 1-6) CD doesn't have electrical/wiring info, either.

The 1973 wiring diagrams for the B500/750 is here (I do not have anything closer to your L900, but it's possibly similar). The ignition switch is shown on grid E18 (and E57):

 

Great, Thanks

 

I can’t get that link to work. Unzipped the download and nothing comes up in the files?

 

There was an issue with that zip file this morning; I updated page 1 (the index) and couldn't add it to the zip.

I re-created the zip from scratch about three hours ago; I just dl'd it on my phone just now, and it opened and displayed ok for me.

Could you try downloading from that link again?

 

When i click on the link a blank page comes up but it downloads into my files. So now I have two zip files and 11 folders in my downloads from it, a set from the first try and the latest attempt. If i open the latest 5 folders each one has 5 diagrams in it. The first ones were empty. They are now 5 folders with the same 5 diagrams. I am on a new to me I pad, i may have done something extra to get that many duplicates.

Thank’s

 

The ZIP contains (5) files; each is a big scan of a C-size paper copy.
Here are links to each page individually:
https://asavage.dyndns.org/Ford/F600...0-750/1of5.png
https://asavage.dyndns.org/Ford/F600...0-750/2of5.png
https://asavage.dyndns.org/Ford/F600...0-750/3of5.png
https://asavage.dyndns.org/Ford/F600...0-750/4of5.png
https://asavage.dyndns.org/Ford/F600...0-750/5of5.png

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I should have 1973 F-Series F500-up online in a couple of weeks.

 

Yeah looks the same as i got. Would a guy be able to find the actual L 900 wiring diagrams somewhere? Or are they long gone?

 

You can ask Faxon (Faxon Literature, Riverside, Calif.). I have no useful advice.

 

Your ignition switch and all the other models. This is an old post so who knows if that supplier still has any:

https://www.ford-trucks.com/forums/1...l#post15569801

As to the CD I referenced earlier, they claim to have all the electrical stuff on that one, so is it possible there is another CD in mind here or???

 

I bought that CD, and it has ONLY the MPC. I resold it.
The page where they sell it has no mention of "wiring" or "electrical" on it.

 

Paragraph 4 mentions "...all the illustrations you need, including....electrical....."

https://www.hipoparts.com/1973-79-fo...ts-catalog-cd/

An illustration is not a wiring diagram I suppose... Do you recall if there was anything about electrical?

I hate sending people to dead ends.

Thanks.

 

(Followed up in PM)

Here's what I posted on my eBay auction when I resold the hipoparts MPC CD:

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Purchased Mar2024 for $26.11 after tax, used it, it's two big PDFs of somewhat crooked scans of the paper Master Parts and Accessories Catalog. The quality of the scans is OK, with most visual noise removed, but some of the backgrounds are pretty light in the illustrations. TBF, the source catalogs weren't the greatest even when they were new. Someone spent some time scanning and compressing these.


This is not a lookup system or anything like easy to use. You are well served reading the first five pages, where Ford explains their parts numbering system. You'll bounce back and forth between the two PDFs. "A" has the part numbers and most tables, but almost no images. "B" has the illustrations. Many, many illustrations are "representative". This is old-school stuff. It *does* have decent section bookmarking. It's not text-searchable, as these are all image scans with no OCR.

Still, if you're willing to put in some time, you can tease out the original part number -- and often the Motorcraft cross-reference -- for these trucks. It won't give you superseded numbers after ~1983, though. It's a LOT better than nothing, but if you're used to more modern parts lookup systems (Toyota, Nissan, etc.), this isn't anything like that.

I'm just leveling your expectations. The firm I bought it from didn't reveal the crudity of what I was receiving, and while it's worth the coin, it also demands that you learn how to use it.

Covers:
B600/750
C-CT600/900
CL-CLT900
F600/750
L-LN-LNT-LT-LTS600/900
W-WT900

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I sold it for $15 + $4.13 shipping - eBay's 10%, on 19Apr2024.