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Go Back   SailNet Community > On Board > Gear & Maintenance > Favorite penetrating oil that DOESN'T STINK!
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Topic Review (Newest First)
04-08-2013 01:21 PM
jimgo
Re: Favorite penetrating oil that DOESN'T STINK!

Ouch! So sorry to hear that. Glad the yard is being nice!
04-07-2013 11:13 PM
MedSailor
Re: Favorite penetrating oil that DOESN'T STINK!

Quote:
Originally Posted by jimgo View Post
So Med, what ever happened to the engine and transmission? Was it toast from all you did? (hope not!!!)
Tranny doesn't seem to be leaking, so hopefully the seal is still good. The "alignment" that I hauled out to do turned into a major job. Basically, everything aft of the transmission is being replaced.

The previous owner installed a used prop-shaft that was too short. He had some kind of steel "coupler" fabricated at an auto shop and installed it to take up the space. Needless to say the hunk of rusted metal wasn't true to <3,000inch. Consequently no amount of alignment would help.

Once we started taking it apart we found that it had worn oval shaped holes where the bolts were attached to the transmission. It also had worn my packing gland into something other than a circle.

In order to try and survive from a financial perspective the yard has been kind enough to let me do as much work as possible even though it's not a do-it-yourself yard. Yesterday I cut the propshaft in half to facilitate removal. That was fun.

When she's all done she'll have a new (everything) and a drip-less packing. Should be good when it's done, except for the bill.... So far (fingers crossed) no damage from the penetrating oil on the tranny.

MedSailor
04-07-2013 11:02 PM
jimgo
Re: Favorite penetrating oil that DOESN'T STINK!

So Med, what ever happened to the engine and transmission? Was it toast from all you did? (hope not!!!)
04-07-2013 03:44 PM
hellosailor
Re: Favorite penetrating oil that DOESN'T STINK!

"The only way I find to get a proper metric is to "
Actually, I bought a couple of little tools last year that I keep kicking myself in the ass for not having boughts a thousand years ago. Thread pitch tools.
Anywhere from $5-20 each, available in metric, english, and beware if there's no label because there are Whitworth as well.
It looks like a little fold-up set of allen keys or feeler gauges, like a little pocket knife. Except each "blade" has a set of teeth cut into one or booth edges, each in a different thread and pitch. So if you hold a bolt against the blades and "1/4x20" matches up, or "8mmx1.5" matches up, whatever it is, it really is.
On the higher priced side of things, they also are sold like a "necklace" where the pearls are different sized nuts. Again, whatever nut fits, that's your thread. (And vice versa, strings of bolts to check your nuts.)

The Home Despot and other places have been kind enough to put "size finders" like that one the hardware shelf, but it is so cheap and easy to just buy the damned things and have them in the tool box. I think Vermont American is one of the inexpensive brands, just an inch long and that's good enough.

Which of course still doesn't help with generic imported junk metal parts that were made on worn out dies for the lowest price.
04-07-2013 03:01 PM
driz
Re: Favorite penetrating oil that DOESN'T STINK!

[
driz, some of the big ox stores have taken to hiding a "tool chest" on the shelves, with metric and stainless hardware jumbled up in it. Once you crack the code and go pearl diving, sometimes there is genuine good hardware in there.

And then there's Ace Hardware, that has little trays of all sorts of good hardware if you ask them where the adult section is. Most peculiar, because if you order from Ace's web site "ship to store, free!" the prices are often only 1/2 or 2/3 of the store's price. Same product, same pickup location, often 33% to 50% off if you wait the three days for the web order. Go figure.[/QUOTE]

Oh boy pearl diving in the metric/us mixed mess, pleeeeeaaasssse. If there is one thing I detest more than metric it's a mix of the vermin. The only way I find to get a proper metric is to take the old one right in my hand to the store, ughhhh. That is just one of the reasons I try to avoid American cars. Metric sucks but they almost exclusively use 12 10 `13 14 17, with little else mainly so they are fairly easy to decipher standing on your head. US cars are splattered with a closely matched mix of everything under the sun. Add some rust and who knows what they are till you round off the bolt.. It's a good thing that boats are simpler for all our sakes. I heard that Mercury is now making their outboards in compatible bolts meaning 13mm / 1/2 14/mm 9/16. Too bad no one else does. Nothing like good old Coarse or fine threads, so simple.
04-07-2013 01:09 PM
davidpm
Re: Favorite penetrating oil that DOESN'T STINK!

Quote:
Originally Posted by Maine Sail View Post
I blasted the remaining two with PB and waited about 5 minutes. The one unbroken screw came right out with a quick blast of the impact driver despite having almost no grip left to it. I put my Knipex pliers on the broken one and was able to get it out. On the left side I simply sprayed with PB, waited five minutes, and both set screws backed right out with no damage to the heads..... These of course were not "scientifically rusted" on and had been naturally rusted, by real Maine winters...
Since you run into rusted parts on regular basis an have a history of doing practical science perhaps you would be willing to do an experiment.

If your experience is the same as mine we typically find that of several fasteners that are rusted tight often only one or two are really stuck.

If you would for next few projects use pb for half the fasteners and the homemade mix for the other half then the possibility of accidentally getting the easy one every time would be statistically reduced.

The fact that pb blaster worked on the same fastener after the acetone-oil treatment is evidence that pb works better but their is still the possibility that another AO treatment would have worked just as well.

Then again you may just want to get your work done and not amuse us.
Just a thought.
04-07-2013 12:32 PM
hellosailor
Re: Favorite penetrating oil that DOESN'T STINK!

Welcome to the cult of true believers, MedSailor. If you would step this way, to the rear, we have some saffron robes you may be interested in. You get a 10% discount on future reorders if you agree to wear the saffron robes.

Amazing stuff, isn't it?

driz, some of the big ox stores have taken to hiding a "tool chest" on the shelves, with metric and stainless hardware jumbled up in it. Once you crack the code and go pearl diving, sometimes there is genuine good hardware in there.

And then there's Ace Hardware, that has little trays of all sorts of good hardware if you ask them where the adult section is. Most peculiar, because if you order from Ace's web site "ship to store, free!" the prices are often only 1/2 or 2/3 of the store's price. Same product, same pickup location, often 33% to 50% off if you wait the three days for the web order. Go figure.
04-07-2013 06:39 AM
driz
Re: Favorite penetrating oil that DOESN'T STINK!

I too use a lot of PB. I like the long range of the stream, its accuracy and the way the foam sticks onto the object. Most any of these will work given time and the right technique.
I like to start when I can a week in advance. If possible to reach and in do so take a dremel wire wheel, I love those little 1" wire wheels especially for cleaning electrical posts / terminals . They work good on small nuts too but a 4" grinder with wire wheel does better if there is room. Knock the loose stuff off and get the rust swollen bolt head back to size then give it a shot. Give it a shot every day or so whatever along the way and also some sharp raps with a hammer or punch if you can reach it. Keep the penetrant on there doing this. When the day arrives put a good quality socket, and I still much prefer 6 points, and breaker bar and rap it a few times. It should give and often a good wrench will work better as the breaker bar and its connection tend to suck up some of your raps. It should move, if it doesn't try tightening it a tad. If it tightens a tad you're home free. Some more juice and back and forth wiggling will free it, just don't get too mean with it right off.
Another trick I use if I can is to leave the offending nut / bolt head sitting in a puddle. of oil. Try mastic or even tape, anything to keep the oil sitting there in quantity if you can. Mastic comes in rolls of small ribbons ( they used to use it to seal between car door panels, fenders ect so auto body supply stores have it) and a roll will last a lifetime. Surrounding the nut in a puddle of oil really helps if you can manage it. Even a dam of duct tape under a horizontal mounted bolt keeps some in place.
Whatever you do when it's out if the bolts are nasty/ pitted try if you can to replace with new. Just make sure you get properly rated ones and not hardware store bin nuts and bolts. If you have to use a torch an old timers book says you HAVE to use coffee. Cherry the offending nut up then use the secret ingredient, coffee. It has an ingredient in it that keeps you from getting carried away and banging on it when still hot. It's called TIME. By the time you go made the coffee and drank it it will have cooled enough to beat on without damaging anything.
A can of "Never SEIZE" lasts for years, use it where ever you can / should because the next guy (probably you) will thank you for it
04-07-2013 12:42 AM
MedSailor
Re: Favorite penetrating oil that DOESN'T STINK!

For the record, I take back EVERYTHING bad I said about Kroll oil. The stuff is magic! The smell (which does smell like simple green to me) does disappear in a day or few, depending on how much you use.

I was in the yard yesterday beating on some rusted together parts with a sledge. They were winning. I decided (since the can was within reach) that it was worth a try. SECONDS LATER the rusted parts were yielding to the mighty blows of the sledge. Absolutely brilliant!

Also, other parts that were rusted together, that the yard quoted me TEN HOURS to get apart (and another mechanic walked away from) came apart with little resistance after two applications of the magic oil.

Now as long as it hasn't eaten my rear seal to my transmission, I'll be happy.

MedSailor
02-19-2013 12:47 AM
MedSailor
Re: Favorite penetrating oil that DOESN'T STINK!

Quote:
Originally Posted by MedSailor View Post
Well Ship! On the advice of my mechanic I sprayed it liberally all over the engine and transmission.

Now what should I do? Is there something even more toxic I can use to fix the problem? i.e. the two wrongs making a right theory? Should I just mop it all up and hope for the best?

Why is it every time I hire an "expert" for my boat something bad happens....

MedSailor
Maine! I read your "$800 mistake" thread. Am I screwed also or is there anything I can do to reverse the damage?

Also, I will be taking my propeller shaft out in a month come haulout. Is the transmission seal easier to replace with the shaft out?

MedSailor
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