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Old 07-24-2021, 09:22 AM   #1
Junior Member
Join Date: Feb 2016
Posts: 19
2008 E450 Drain Plug woes

Picked up a low miles (26k) great condition Winnebago Aspect 26A a couple weeks ago. Went to change the oil last week in the Triton V10 last weekend. Steel drain pan.

It took me 15 minutes with a 1/2" ratchet and a pipe extension to get the $^#! drain plug out. WTH!!! It would appear the idiot new guy operating the air impact gun at the last oil change (done at a Valvoline Oil Change store in Dallas, according to his records) was a little overzealous with his torque settings. I. am. pissed.

The bolt was not cross threaded; but all the threads that engaged the welded on insert within the drain pan are flattened. What a classic rookie screw-up.

My first plan is to pick up a 14 x 1.5 tap, grease it well, and chase the threads. Then get a new oil drain plug, and see if I can get the threads to engage at the factory recommended torque setting - somewhere around 15 ft-lbs, from what I can find online. I am hopeful that the engineers at FORD would have made the bolt a softer grade steel than the welded on thread insert inside the drain pan; as this is probably not the first time some monkey has done this.

If it can hold at that torque, great. If not, I have discovered that Dormans sells a couple oversize, self tapping drain pan plugs. And that NAPA sells an oversize drain plug with what appears to be an internal threaded 3/8" machine plug as the removable part to drain the oil. Pics attached.

Both of these options should work, and way cheaper than replacing an oil pan; Have not confirmed it, but the first few websites I have found discusses how it appears the engine has to be lifted a few inches to allow clearance to remove/install the pan. Would rather avoid this "solution" if possible...

Anybody been down this road before?
This entire problem could have been avoided if the idiot oil change guy would have taken 5 seconds and turned down his torque setting. For crying out loud, who torques a drain plug like a lug nut...
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Old 07-24-2021, 10:09 AM   #2
Holiday Rambler Owners Club
Join Date: Dec 2020
Posts: 93
I have a car I bought used and you could see the witness marks on the pan from using an impact gun to either take the drain plug off or put it on. I wound up going with oversized drain plugs and no leaks in 3+ years.
2017 Holiday Rambler Vesta - Class C
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Old 07-24-2021, 10:32 AM   #3
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Join Date: Jul 2014
Posts: 31,208
Another option, although I removed mine, is to install a Fumoto drain plug valve.

You get it in and sealed up, and use the lever to open and close the valve.

I didn't like how low the valve sat on mine.
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Old 07-24-2021, 12:19 PM   #4
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Join Date: Feb 2016
Posts: 19
Thanks guys.
I have seen that Fumoto gizmo mentioned on a few sites; while ..handy, and not subjecting the oil pan threads to repeated stressing - especially if the threads are ...light... it would seem to offer a tempting target for rolling over or thru dirt mounds - or brush covered dirt mounds - getting to a campsite?.

That said, the site does have right angle bodies for some vehicles.
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