CRC and header pipe screws

[magicmonkey]

When I was cleaning the bike I thought it would be a good idea to spray some CRC on the screws for the header pipes. They're rusted to hell and I want to arrest and rust and replace them with screws which will actually work at some point in the future, after I'd applied CRC quite liberally for a while to work into the threads and loosen the rust. Slight problem though, whne I came into work this morning I noticed smoke coming from the engine which made me panic for a while, until I realised it was the header screws and the CRC was smoking. There's obviously some sort of reaction happening here but is that something which might cause problems? ie. does CRC become corrosive at high temps or is this just a bit of smoke which I shouldn't worry about?

I'm pretty sure it should be ok but I just wanted to double check with people more knowledgeable than me

[The Pastor]

its just burning off, its like when you spill oil on ur exhaust pipe.

[Pussy]

When I was cleaning the bike I thought it would be a good idea to spray some CRC on the screws for the header pipes. They're rusted to hell and I want to arrest and rust and replace them with screws which will actually work at some point in the future, after I'd applied CRC quite liberally for a while to work into the threads and loosen the rust. Slight problem though, whne I came into work this morning I noticed smoke coming from the engine which made me panic for a while, until I realised it was the header screws and the CRC was smoking. There's obviously some sort of reaction happening here but is that something which might cause problems? ie. does CRC become corrosive at high temps or is this just a bit of smoke which I shouldn't worry about?

I'm pretty sure it should be ok but I just wanted to double check with people more knowledgeable than me

Nowt to worry about!

[imdying]

Replace them with studs, not more screws.

[FROSTY:Me]

MM-try penatrating oil rather than CRC.

[magicmonkey]

Sweet I didn't really think there would be too much to worry about but smoke from the engine always makes me a kinda worried!

[ManDownUnder]

Sweet I didn't really think there would be too much to worry about but smoke from the engine always makes me a kinda worried!

Not a bad approach to have mate.

[magicmonkey]

MM-try penatrating oil rather than CRC.

I was planning on CRCing it for a few weeks (at the weekly clean) and then hitting it with a penetrating oil when it comes time to actually remove them. I haven't got any replacements yet as it was just a passing thought as I was cleaning the bike, might get down the hardware store and pick some up this weekend though...

[FROSTY:Me]

I was planning on CRCing it for a few weeks (at the weekly clean) and then hitting it with a penetrating oil when it comes time to actually remove them. I haven't got any replacements yet as it was just a passing thought as I was cleaning the bike, might get down the hardware store and pick some up this weekend though...

CRC might do the job but you have the best chance usuing the other stuff.

[magicmonkey]

CRC might do the job but you have the best chance usuing the other stuff.

cool, will do I need to add some of that stuff to my tool box anyway, it's notably lacking in that department!

[Pussy]

Inox is good stuff

[glegge]

Just a note, when you go to replace them, you can get bolts that are made for exhaust manifolds and the such, they resist corosian and the temperature, so if you where to replace them, it may pay to investigate getting some of these.
dont ask me what's so special about them, but i just know from turning a few of them that they come out much easier than the old standard bolts used in older cars/bikes and last longer.
they probably have a certain % of some different metal in them or something - or a coating. who knows. (someone here will i'm sure)

[magicmonkey]

Just a note, when you go to replace them, you can get bolts that are made for exhaust manifolds and the such, they resist corosian and the temperature, so if you where to replace them, it may pay to investigate getting some of these.
dont ask me what's so special about them, but i just know from turning a few of them that they come out much easier than the old standard bolts used in older cars/bikes and last longer.
they probably have a certain % of some different metal in them or something - or a coating. who knows. (someone here will i'm sure)

I don't suppose you have any idea where I'd pick those up in Welly do you?

[glegge]

I don't suppose you have any idea where I'd pick those up in Welly do you?

i must confess i have never bought any 'after market' ones, only genuine replacements for cars i have worked on in the past.

If you know the length thread and diameter, you could try the likes of schrodico(sp?) on tory street, 2 francis place. (looks like they are called tony's now)

it may pay - in discussions with them, to ask about bolts/studs for exhaust manifolds and let them tell you whats available, but i'm sure there are some special ones, but i'm just not sure of the details sorry.

[magicmonkey]

i must confess i have never bought any 'after market' ones, only genuine replacements for cars i have worked on in the past.

If you know the length thread and diameter, you could try the likes of schrodico(sp?) on tory street, 2 francis place. (looks like they are called tony's now)

it may pay - in discussions with them, to ask about bolts/studs for exhaust manifolds and let them tell you whats available, but i'm sure there are some special ones, but i'm just not sure of the details sorry.

sweet, just found them on street view. I was intending to pop down to repco and get a new spark plug on my lunch break but this place is even closer