Rust inside frame?

[Damian]

Dear RBWers,

I have a Saluki (2007) which normally is fendered but not at the
moment because of an overestimation of my mountainbiking skills and
the selection of an inappropriate trail resulting in an uncomfortable
encounter with a gorse bush (do you have them in the USA? I'm in
Ireland) and a rock. This left about 20 splinters in my hand and my
fender bust. Of course that day I was only going for a short spin and
so had not bothered to bring tools with me (what could possibly go
wrong within 5 miles of home?) and had to bash the fender with a stone
to get it to stop rubbing the tyre so I could get home. Fender beyond
repair.

Aaaanyway ... I went for a 4 hour spin in the pouring rain a couple of
weeks ago in my now-unfendered Saluki. Solid downpour for four hours
but great fun on the ride.

Yesterday when I went to put the new fenders on I noticed a line of
deposited rust coming from the tiny hole at the bottom of the seat
stay where water had obviously flowed out during the wet ride. It
seems that the inside of the frame may be rusty.

What should I do?

Thanks for all advice,

Damian

[Seth Vidal]

Are you SURE it is rust? FrameSaver- frequently applied to rivs, is
orange/brown in color but has a VERY distinctive odor about it. Make
sure you saw rust and not framesaver.

-sv

[Damian]

Right, maybe it is, although I didn't notice a smell. Unfortunately I then cleaned the frame so I can't try to smell it now...

They should make framesaver a different colour to rust!

[Seth Vidal]

Framesaver smells, to me, very sweet. A cloying, almost nauseating smell.

-sv

[Jim Thill - Hiawatha Cyclery]

Pull the seatpost and hang the bike upside down at various angles to drain any water that may be inside. If you have the tools, you may also pull the crank/BB to check for rust. Grease the seatpost and BB threads liberally before reinstallation.

Internal rust is usually more of a theoretical concern than a real-world problem. A thin film of rust on the inside of your frame is normal and doesn't mean your frame is going to die at an early age. Thick rust deposits around the BB are usually a sign of longterm neglect of basic maintenance, but are probably treatable. I don't generally bother with frame saver on my own bikes because it adds too much weight, but I usually pre-emptively address potential customer panic by fogging every frame/bike we sell.

[Damian]

Thanks Jim,

Will do.

Damian

[Jay in Tel Aviv]

Jim,

Now you tell me.
I treated the frame I bought from Forrest that he bought from you.
If you treat the frames you sell that would mean it got sprayed twice.
Are you serious about weight being an issue? How much can a little
spray weigh?

Jay

On Feb 20, 5:32 pm, Jim Thill - Hiawatha Cyclery <thill....@gmail.com>
wrote:

[Seth Vidal]

On Mon, Feb 20, 2012 at 12:57 PM, Jay <robi...@gmail.com> wrote:
> Jim,
>
> Now you tell me.
> I treated the frame I bought from Forrest that he bought from you.
> If you treat the frames you sell that would mean it got sprayed twice.
> Are you serious about weight being an issue? How much can a little
> spray weigh?
>

Mass is preserved.

At the MOST the weight you could add is the weight of the whole can of
frame saver.

But you must subtract the weight of the can itself.

it's trivial.

-sv

[C.J. Filip]

At the risk of jacking the OP's thread...is there any benefit to
plugging the vent holes on the fork legs and junction of the seat and
chain stays? Think I read somewhere that beeswax would do the trick.

[Leslie]

I think you want to leave those open, so any water that does get in, can drain out...

[Peter Morgano]

Yeah, the frame needs to breathe, some surface rust inside is ok, you just dont want pooling water

On Mon, Feb 20, 2012 at 1:28 PM, Leslie <leslie...@gmail.com> wrote:

I think you want to leave those open, so any water that does get in, can drain out...

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[Jim Thill - Hiawatha Cyclery]

Re: frame saver adds too much weight

I often say absurd things for comedic effect. I have to remember that absurdity is often difficult to distinguish from the things that genuinely concern some people who are into bikes! Joking aside, the question of frame saver weight has been asked.

[Bruce Herbitter]

But what if you use carbon-based frame saver and a Titanium spray can?