abcent Posted June 20, 2006 Share Posted June 20, 2006 I've installed some bonnet pins on my 33. Part of me getting towards track days venture. to do this i carefully drilled through my carbonfibre bonnet, what i need to know is what should I use the seal the edges of the hole so moisture doenst get into my bonnet. any suggestions? Berin Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/ Share on other sites More sharing options...
abcent Posted June 20, 2006 Author Share Posted June 20, 2006 i'll try to get off my ass an get some pics up soonish Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2272075 Share on other sites More sharing options...
Mr. Oizo Posted June 20, 2006 Share Posted June 20, 2006 this sounds stupid, but would that clear bathroom sealant stuff work? Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2272094 Share on other sites More sharing options...
abcent Posted June 20, 2006 Author Share Posted June 20, 2006 yeah I considered silicon or silastic, but thought there might be a better stronger option? if not that'll be the way I'm going. has to be done before friday nights cruise. Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2272117 Share on other sites More sharing options...
ylwgtr2 Posted June 20, 2006 Share Posted June 20, 2006 use an old car tube and cut yourself a nice neat gasket Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2272137 Share on other sites More sharing options...
cowie165 Posted June 20, 2006 Share Posted June 20, 2006 ^^ cool idea Troy Another fix could be a carby gasket. They come quite small and have a groove on the outside, the opposite to a thermostat gasket, if you follow... Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2272149 Share on other sites More sharing options...
GTRgeoff Posted June 20, 2006 Share Posted June 20, 2006 So what's the problem? Scared of moisture ingress?? Your bonnet is not really a proper structural element so moisture absorption affecting the glass transition temperature is not relevant, nor is sudden snap freezing of the interlaminate moisture going to crack the material apart unless you take it from +20 to -30 in a matter of minutes. I would expect a little top coat clear sprayed into a container and brushed on gently would see you clear. Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2272294 Share on other sites More sharing options...
D-limo Posted June 20, 2006 Share Posted June 20, 2006 $5 tube of that epoxy you mix urself Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2272308 Share on other sites More sharing options...
someonestolecc Posted June 21, 2006 Share Posted June 21, 2006 All good ideas, I'll add sikaflex perhaps to hold the tube or seal the bonnet pin to the bonnet. Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2273165 Share on other sites More sharing options...
Shitbox Posted June 21, 2006 Share Posted June 21, 2006 goto clark's rubber, get little rubber grommets that fit nicely over the rods, may have to widen the holes in the bonnet. then get some bathroom towelrack mounting ends, circle thin metal (once you see em youll know what i mean) to fit around the hole on the bonnet, makes it all look a lot neater, also stops the pins stratching the bonnet although you might have got these when you bought the pins N.b. to all beginners ... put you pins in lengthways to push in and pull out towards front of car .... circle end towards front of car pointing towards rear (if that makes any sence), so that if you crash you can still pull your pins out Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2273325 Share on other sites More sharing options...
JCMarshall_Law Posted June 21, 2006 Share Posted June 21, 2006 If your just worried about moisture getting into the carbon fibre, then worry no longer it will not be a problem. The epoxy that the carbon is imbeded in will not take on water and the carbon cant because it *should* be completly encased in the epoxy. If your worried about water getting into the engine bay... some of the above ideas sound ok. Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2274148 Share on other sites More sharing options...
Scotsman Posted June 21, 2006 Share Posted June 21, 2006 Yeah I'm just a red neck, so I didn't even bother about this. Drilled my bonnet pins in about a year ago and it seems there has been no warping or expanind in the layers from moisture. But I have got some slight fractures in the top layer from the pressure I have placed on the pins. However, Don't be a c0ck like me and drill holes in places they aren't required. But if you find yourself in this predicament, you can just as easily pass them off to your friends as 'speed holes', and you will find that the following week everyone will have random speed holes drilled into their bonnets. Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2274588 Share on other sites More sharing options...
abcent Posted June 21, 2006 Author Share Posted June 21, 2006 If your just worried about moisture getting into the carbon fibre, then worry no longer it will not be a problem. The epoxy that the carbon is imbeded in will not take on water and the carbon cant because it *should* be completly encased in the epoxy. This was my main concern, it's not gaskets I need as the area I want to seal is the sidewalls of the hole through the bonnet, something a flat gasket wont fix. I paid near $2K for the bonnet so I really am very cautious of what I do to it. (look in my gallery if you wanna see it). Might get a small tube of epoxy and smear it round the inside of the hole, just to be on the safe side. Thanks heaps everyone. all good advise as per usual As far as the direction of the pins, I looked at as many race cars as possible to see how the pro's have em, an yeah, put em that way (same as V8 Supercars) Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2274724 Share on other sites More sharing options...
Ronin 09 Posted June 21, 2006 Share Posted June 21, 2006 Fat looking bonnet mate... who made it / where from etc etc Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2275071 Share on other sites More sharing options...
PranK Posted June 21, 2006 Share Posted June 21, 2006 Not sure if this got suggested as I cbf'd reading all the replies.. But you could easily just get a little rubber grommet and then seal it. It would look much nicer and if you have ever tried to do a 'clean' seal with any type of sealant, you'll know its easier said than done. Also, if its proper carbon and/or proper fibre glass then moisture wont really harm it. It would need to be submerged for a long time for any damage to occur. C Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2275317 Share on other sites More sharing options...
Shitbox Posted June 21, 2006 Share Posted June 21, 2006 yes i suggested sompin similar, not what he was talkin about misread the question, my bad lol Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2275957 Share on other sites More sharing options...
abcent Posted June 22, 2006 Author Share Posted June 22, 2006 Fat looking bonnet mate... who made it / where from etc etc Thanks, I'm damn happy with it. It was made my customcarbon in Virginia QLD, its a customised version of one of there off the shelf ones. Top Quality!! would recomend them to anyone. Link to comment https://www.sau.com.au/forums/topic/123028-ive-drilled-through-my-carbon-bonnet/#findComment-2277670 Share on other sites More sharing options...
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