Look up TCM part 22537 / 654583 same part, look at the cost.
Holds the oil pump together. It is a specific part number by the book. but it is not a required replacement part, IAW the overhaul manual Like a rod bolt.What is it used for?
In this case I am paying for it. When you throw away owners reusable parts you should replace them.Yeah, but if you use the old one and it cracks, is "well I wanted to save my customer $20" going to fly?
You aren't paying it, we are. And by "we", I mean those who bought the Continental engine.
It's my impression that Superior uses that bolt then modifies the head, to clear the cam gear, hardens it to grade 8 spec. and sells them for around 20-25bucks.MS20074-04-05....$1.56 at Spruce.
Notice that is the correct bolt pictured, (no hole in the center of the head) like the more modern replacement part number.
Want to shock yourself with airplane part prices? Look up a Cessna 180-185 oil filter adapter.
http://www.aircraftspruce.com/catalog/eppages/cessnafilteradptr.php
true, but the nut?But connecting rod bolts are kinda special and kinda important!
You take that liability I'm not going to.
That isn't the issue here, I set the standard for my engines, New OEM parts are the norm, They are available that is what gets used.Tom, not anyone should or shouldn't. Just pointing out there are avenues available. The AC says identical part number by manufacturer is acceptable.
Timken bearings on a Cub are available at the local bearing house. Same part number imprinted as the original. Works just the same because they are the same. Piper had a different part number, but Timken numbers matches. Same for Scott 3-24b/2000 tailwheel bearings. Order the aircraft part number and you get Timken bearing with same part number of the old ones. Never had an IA have an issue.
On my PA28, the Challenger air filter is EXACTLY the same as a dodge truck air filter...well, exactly the same with the exception of the 5x price.
Timken bearings on a Cub are available at the local bearing house. Same part number imprinted as the original.
That isn't the issue here, I set the standard for my engines, New OEM parts are the norm, They are available that is what gets used.
I really doubt you can find a new OEM wheel bearing for a J-3, so the aftermarket Timkins are used.
A few years ago at annual, when I pulled my very overpriced Continental alternator belt out of the sleeve, I noticed that it was simply a Gates belt with a Gates part number in a Continental sleeve. I change my alternator belt every year at annual and slide the old belt into the sleeve and keep it as a spare. My A&P would rather I provide the parts (for whatever reason) so every year I hand him a new Gates belt in a Continental sleeve. That sleeve is getting pretty worn after 8 or 10 years.
Same goes with my 182's wheel bearings. When it's time to replace them my A&P sends me down to NAPA with the part number.
In this case I am paying for it. When you throw away owners reusable parts you should replace them.
How do you cope with a parts vender that will use their part number and sent you a generic part.It might just be the pictures or my eyes but the MS ones from Spruce have a thicker head, they aren't the same part.
I know there is standard harware used in critical areas on aircraft but replacement parts from the aircraft manufacturer are NDTd when you order them using the part number in the parts manual vs orderng them from a hardware vender using the standard part number. Tead carefully.
How do you cope with a parts vender that will use their part number and sent you a generic part.
Lots of these knock off parts look exactly like the real ones, and come in a pack labeled with the proper P/N. It's a case of know your vender, and where they get their parts.Send it back.
well....if it's like you say....that's illegal.Lots of these knock off parts look exactly like the real ones, and come in a pack labeled with the proper P/N. It's a case of know your vender, and where they get their parts.
very good question.An interesting discussion.
When the OP gets his new bolts, how will he know that they are a good part that he can install?
Now you know why we have FAA/PMA tags and 8030-3 formswell....if it's like you say....that's illegal.