mbonner

My oil drain plug is frozen so tight I dare not put any more pressure on it. I took the 944 to a local shop which works on boats and they sucked out the old oil through a thin tube down the dipstick hole. Theirs is an industrial strength vacuum unit for shop use on in board motors in boats, where can I get one for my occasional use? I can do my cars standing up and not having to crawl underneath them.
Mike

PorscheDude1

Harbor freight? Have you tried a search on google?

bigdeano

I've got one out in the shed that I bought for 80 bucks. I'll look tomorrow when it's light outside and tell you the brand and model name. Works well, first time I used it i crawled up under the car and pulled the drain plug to see how effective it was and it got all but maybe 2 or 3 ounces.

triscadek

I got one of these for my jetski.

http://www.parkeryamaha.com/index.as...D&ProdID=22085

jstand22

You should really look to try and get that drain plug out...sucking the oil out may not remove all the particles that may have accumulated, and you would never know if there were or weren't any debris.

mbonner

That's true. I should try to get the plug out, but my local mechanic could not budge it and did not want to put any more pressure on it.
Any tips for removing a stuck oil drain plug, I mean this thing is tight! Heat?
Mike

Jfrahm

JB Weld a socket to it and use an impact or big breaker bar. Worst case, you get to do your motor mounts, oil pan gasket and rod bearings.

Also IMO shock is better than one long pull, so an impact gun or hammer blows to the breaker bar should help. But get a second opinion from someone else on the board with a good rep. It might not be so bad, the mechanic might just want to avoid liability.

-Joel.

Epic2112

I'd get the oil pan around the plug good and hot. Do this with the oil out, if you're going to buy a vacuum thing anyway, that way you aren't trying to heat all the oil with the torch.

bigdeano

http://www.mityvac.com/pages/products_fee.asp
Model: 07400 Fluid Evacuator
Takes about 10 minutes to get it all out but once you've pumped it up to where there's a vacuum on it, you can stop pumping and the oil keeps on flowing.

UncleMaz

I bought my self a set of bolt outs from Craftsman (impact kind) when I couldn't get my overtightened/slightly stripped one out. Two seconds of impacting and voila. Since they chew up the plug bolt, have a spare drain plug handy.

Potomac-Greg

I have the Mityvac and love it. I once sucked out the oil and then pulled the drain plug to see if the sucker missed anything. Zip. Nothing was left behind. I guess the drain plug might "wash out" some sludge but I doubt it. The oil sucker is a great investment.

bigdeano

I use the mityvac 2/3 of the oil changes. Every third time I pull the plug and do it old school just in case there is some build up in there.

FRporscheman

Aren't those bottom 2 or 3 ounces are the most likely to contain debris?

I'm sorry, I'd rather crack my oil pan trying to get the plug off than trust a suction pump. Spray PB blaster on the drain plug, go drive around and make the oil hot, spray some more PB blaster, then hit it with an impact gun, and it will come off for sure.

Charlie944

I have the Mityvac 07201 vac and pressure dispenser. It is really nice for transaxle fluid changes, and for the transfer case and rear diif on my Jaguar.

I never used it for oil though, although you certainly could.

I would try and get that rotten drain plug out though.

aprotogerellis

My classic coctail for stuck bolts includes:
- soak in Plus Gas (much better than WD40 etc). Ideally have the component completelly covered for a day or so (in your case that may be tricky!)
- Hit with hammer to brake corrossion
- Heat up for a couple of minutes (one of those cooking blow torches is cheap and works well)
- May also be worth trying sprays that freeze the component (don't quite recall the name but some mechanics swear by it)
- Use impact when unscrewing

And then do this whole thing again if its still stuck!