Bevel Box Drain Plug

ok, you were right, it came out very easy. could not use the bolt extractor as intended due to the magnet fill, but took it apart and used the threaded collet (after tapping the magnet inward about a quarter inch) and just a pair of pliers to turn it and it came right out- yeah!
did have a significant amount of filings, etc., on that magnet, so i guess i would not want to replace the triumph part with a regular bolt... fortunately i've got a couple of the right ones on the way.
the thing that has me scratching my head is the condition of the threads in the case- a gouge in one of the threads- hard to get a pic of but i tried (there on the left, second thread in). i definitely did not do it getting the bolt out, but i just don't know whether i think the prior service might've been responsible or maybe the **** thing came machined that way. neither would surprise me. this is the stuff you find when you diy i guess. there is no corresponding damage on the bolt i removed (drain plug, whatever). i wonder if the seal of the plug was/will be compromised. the parts guy confirmed there is no seal or o-ring that goes along with this part. i guess i'll find out in a few days, when i get the replacement parts. not much i can do about any of this, except take some satisfaction that i ain't the one that screwed it up!

Nobody has a "Grabbit"? Those little extractors are worth their weight in diamonds! Ya don't even have to punch a hole in the broken bolt for the extractor to grab hold and spin it out, it's one of those "must have" tools. It's save my ars a number of times.

Good macro setting on your digital by the way.....

The housing is CNC machined at high speed with carbide tooling so there will be a bit of chatter in the major and minor diameters of the threads....just as there is machining marks on the plug, which is cold headed by the way. They are made on automated screw machines from bar stock. So long as the thread form isn't compromised and the fastener threads in and out properly without binding, all is good.

What you see could very well be a casting flaw that appeared during machining just as it could be machining marks. The housing is pressure die cast (like most things are today) and with that type of casting you get internal imperfections on ocassion. We had a thread of a perforated sump plate on here last month that was a victim of that type of casting procedure. The sump plate leaked because the flaw compromised the integrity of the casting. You don't have that problem with the housing. I'm pretty sure that the finish machined and threaded hole is checked with a plug gage and looked at before final assembly. Europeans have pretty strict QC (ISO) standards, more stringent than our domestic QS9

HellFire said:

Nobody has a "Grabbit"? Those little extractors are worth their weight in diamonds! Ya don't even have to punch a hole in the broken bolt for the extractor to grab hold and spin it out, it's one of those "must have" tools. It's save my ars a number of times.

Click to expand...

By 'grabbit' do you mean a spline drive extractor? Never heard of a grabbit.

Me neither, how 'bout a pic of one, might want to add it to my tool collection.

Dennis

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spell it "grabit" and google. it's one of those "as seen on TV" deals... and essentially the same thing as the business-end of the bolt extractor, the collet that's threaded over an appropriately sized cutter. would work on stripped screws, where there's already a hole for the tool to get into and grab the sides of, but not on any normal broken bolt... but yea, it would've been ideal for this plug with its already hollowed out center (assuming there's one sized such that you don't have to shove it in so far as to knock the magnet loose, that is!).

Here is the link, there is a video of the comercial also showing how it works. There was a spot on a TV show called pitchmen about the family that invented it, they had bought some german patent that didn't work and sunk millions into the machines to make it. Since it was "in for a penny in for a pound" the son invented this one that actually works. I spelled it wrong earlier. www.4grabit.com It worked fine for me on broken bolts, just center punch it first and go at it like it was a screw. It's not industrial size but alot more convienent than those brittle little EZ outs that snap off in the hole where you just snapped off a drill bit while drilling the hole.

That's a neat little tool. Probably not workable for the machine bolts I break but ideal for around the house stuff. Irwin tools makes the multi-spline extractors I use, www.irwintools.com just scroll down to screw extractors. I've never had any luck with the fluted ones. I break them off and then have to drill them out with a hi-rock die reclaim drill.

I know thats right! Drilling a drill bit always seems to lead to drilling a drill bit, to drilling a drill bit ...
I thought I was trying to MAKE a hole here, not fill one with hardened steel!

p/n & cost

someone early on asked for this:
Plug, Oil, Drain, Magnetic p/n T1270365 @ $6.31 ea