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Wanted to confirm that the injector hold-down update (T40 vs T45) happened with the commonized update in January 06? I've always thought my truck was a commonized engine. It has a yellow dipstick and Jan 06 build month. Just changed an injector and it had the old-style T40 injector hold-downs.
Maybe being early they were "running out of old parts"?
The yellow dipstick is not a hard conformation. My 20mm commonized heads use the T40 bolts, but Ford produced 20mm Commonized heads that worked with the T40 bolts and rocker box as over-the-counter service replacements. As with all production parts, it is possible that those 'commonized' heads could have been used on original engines.
You have to go by the core plug size on the heads.
Wanted to confirm that the injector hold-down update (T40 vs T45) happened with the commonized update in January 06? I've always thought my truck was a commonized engine. It has a yellow dipstick and Jan 06 build month. Just changed an injector and it had the old-style T40 injector hold-downs.
Maybe being early they were "running out of old parts"?
TSB 07-10-4 says Engine Serial Numbers of 6,723,722 (Indianapolis engine production) for the commonized engine. And up or 299,093 and up for the Huntsville production.
Mark, looks like you explained it pretty well back in 2019. Seems a lot of trucks got the yellow dipstick and updated 4-UFO FICM bolts in 2005, which would explain mine.
Looks like the block serial is very difficult to read with engine installed.
I was able to easily read my block serial number with the engine installed. The first step is the know where it is located (see picture below...look for the half moon shape), then spray the location down with some brake cleaner Reach in from underneath the truck from the rear of the block and wipe the location down with a rag to clean the gunk off. A normal size arm can reach this fine, its just a little tight. After all the crap is gone, now take a shop light to illuminate the area and snap a zoomed in picture with your phone. I found that it helped to boost the contrast with a photo editor. The only 'issue' that I had, and many others do as well, is that this number was double stamped on my block, making it difficult to discern what the actual characters were (my example is the second image). After some sleuthing and help here, we were able to deduce the ESN.
Intake / motor build dates pics , door sticker 06/05 , Intake 6-1-05 , by starter 05 31 M , block 06 08 M , window sticker 6/14/05 , In service 7/12/05 , Indianapolis engine plant.
These are hand stamps with a pneumatic hit, so the person on the assembly line doesn't really pay attention, so the stamp can be at any angle or upside down.
These are hand stamps with a pneumatic hit, so the person on the assembly line doesn't really pay attention, so the stamp can be at any angle or upside down.
Somebody gets paid a lot of money to grab their ergonomically balanced tool hanging by the tool balancer to perform this rather mundane task. Granted, I’m sure it’s inconvenient to pause the video and get off the chair to stamp their numbers. You’d think they’d atleast get it oriented properly.
