Transom Bolt sealing??

[Nasher]

All

I need to remove and replace a couple of my engine bolts to replace rusty washers that obviously found their way in amoungst the stainless washers ones when I put the engine on.

What do others use as a sealing agent around the bolts through their transoms?

I've used everything in the past from silicone grease and sealer to Sikaflex, which obviously makes them a pain to get out again.

Nasher

[codprawn]

Try spraying the bolts with silicone before you insert them. I would be tempted to use epoxy - just make sure you do a test run in a block of wood or something first!!!

BTW buy yourself a magnet - great for checking your nuts.............

[Hightower]

Can't beat Silkaflex Nasher, rather than buy a new tube, I have some black I purchased to do the sealing around the instruments and don't need it for anything else. Your more than welcome to pick it up.

[Nasher]

Thanks Guys

I've a half empty tube of Black myself at the moment thanks Andy, I'll need to go and get some more white.
Last time I used Sikaflex on transom bolts they were a right pain to get out again, but I suppose they don't come out too often.

I keep my Stainless and other fasteners in seperate bins in the garage, but must have mixed some somehow.
I don't trust the magnet with stainless, as some forms of Stainless are magnetic.
One of my commodities at Raymarine is Fasteners, and I've recently had a long drawn out battle with a mad Hungarian who claimed that some Jubilee clamps I'd supplied were not Stainless because they were magnetic.
I persuaded him in the end with help from my supplier that Stainless can be magnetic depending on the grade.

Nasher.

[codprawn]

The best stainless to resist corrosion IS non magnetic - but it's not as tough as the magnetic stuff - as always it's a compromise.

Yup - loads of people think ALL stainless is non magnetic - in fact there are probably about 50 or more different grades - there are 8 grades of 316 alone!!!

Then again I'm probably teaching granny to suck eggs here...........

Try coating the threads with silicone spray - it should make removal easier - if that's what you want!!!

[Jono]

Originally Posted by Nasher

.....One of my commodities at Raymarine is Fasteners, and I've recently had a long drawn out battle with a mad Hungarian who claimed that some Jubilee clamps I'd supplied were not Stainless because they were magnetic.
I persuaded him in the end with help from my supplier that Stainless can be magnetic depending on the grade.

Nasher.

Then, if your supplier is supplying ferritic/martensitic "stainless" as opposed to austenetic “stainless” for fasteners used in a marine environment I suggest he wants a good kick in the gonads… but be aware that extensive cold working can render even austenitic steels “magnetic”….

[Jono]

Originally Posted by codprawn

The best stainless to resist corrosion IS non magnetic - but it's not as tough as the magnetic stuff - as always it's a compromise.

Yup - loads of people think ALL stainless is non magnetic - in fact there are probably about 50 or more different grades - there are 8 grades of 316 alone!!!

Oh Goodie.... a discussion on my favourite subject....

[jwalker]

Stroke em wiv a magnet.

Anyway, I use silicon sealer cos you can chap the bolts out with a drift when you need to.
Don't put silicon grease anywhere near where you might, in the future, want something to stick.

[The Garfish]

Originally Posted by jwalker

you can chap the bolts out with a drift

dats diffrent

i yewshully drifft de bowlts owt wiv a chapp

gaRf

[jwalker]

skwirrel meet forr sail

worning: maiy contane nutts

It reminded me of the meat pies that were sold during the war...50% horse and 50% chicken.

One horse mixed with one chicken.