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Re: Can we run tuned engines in club FII
Posted: Thu Feb 02, 2012 2:32 pm
by Kev&Sara
Hi John, trust u r ok ? I've tried to make sence of this one as much as I can. Ive run a 1.2mm alloy sheet from the top of the wheel, full width all of the way around, past the swing arm and into the lip of the catch tray. There's a small cut out for the chain run but the full width of the tyre is still shaddowed ------ if you get what I mean. I'll take a piccy 2night and post it up on here.
Not that I think I need to put any form of catch tray or bulkhead in for Hillclimbing, just being sociable
Kev
Re: Can we run tuned engines in club FII
Posted: Thu Feb 02, 2012 4:03 pm
by kew
little chud wrote:just to throw another question in regarding this subject.
I got my handbook today. and it says this on page 299
The rear wheel must be protected from any possible oil spray. To make this protection, the engine
and rear wheel compartment must be separated. This separation must be created by installing a solid
divider (wall) running from the top of the inside of the bodywork to the bottom of the oil tray and to
the full width of the rear tyre. This divider (wall) must overlap the rear edge of the oil tray down to
the bottom.
My questions is this, as it states the "wall" has to be full width of the tyre, does this mean it doesn't have to be wider than the tyre and therefore it doesn't have to be so wide, it has to have the chain running through it as some have said??????
Can anyone who knows there bottom from their top or something like that, please advise.
cheers
JC
What you need to do is fit the divider to fill the space on the underside of the seat unit at the rear of the oil tray. The object being that if the engine blows no oil will be able to get to the back tyre. The chain needs to pass through some rubber flaps.
Re: Can we run tuned engines in club FII
Posted: Thu Feb 02, 2012 5:00 pm
by anp
I imagine its easier to make it the full width of the seat with a slot to make it stronger and more durable than have one just the with of the rear tyre fixed at one end
Re: Can we run tuned engines in club FII
Posted: Fri Feb 03, 2012 11:19 am
by little chud
thats my point/question Keith and Paul,
why make it the full width with slots in for the chain and rubber flaps etc when it doesn't need to be? Surely this adds its own problems and dangers. What if your flat chat down sulby and the rubber flap picks up on the chain gets draged into the engine and stops the back wheel dead?
Im in favour of making things safer, but we can't make them 100 % oil and water tight. Anything we do will be a compromise on that.
Im sure we will all interpret the rules differently but at the end of the day what do the scrutineers say. Jo?????
jc
Re: Can we run tuned engines in club FII
Posted: Fri Feb 03, 2012 11:41 am
by kew
John, you are correct but a lot of scrutineers don't use common sense. Because of this you have to get as close to the written rule as possible and be prepared for an argument.
What you have to do is seal the back end as well as you can, I have found that when I am scrutineering there are lots of bikes being brought to me and the owners have not even tried to get things right. You will not get things exactly to the letter of the law but you must try to get as close as possible.
I think the rubber flap is a bit of nonsense but I'll see what I can do to fit one. If it looks dangerous to me it wont get fitted.
Re: Can we run tuned engines in club FII
Posted: Fri Feb 03, 2012 1:23 pm
by anp
If the rules say cover the width of the rear wheel whats the need for a rubber flap for the chain it certainly wont run through the tyre anything that may come lose and not be fixed securley should not be allowed
Re: Can we run tuned engines in club FII
Posted: Tue Feb 07, 2012 11:19 pm
by teamradar
little chud wrote:thats my point/question Keith and Paul,
why make it the full width with slots in for the chain and rubber flaps etc when it doesn't need to be? Surely this adds its own problems and dangers. What if your flat chat down sulby and the rubber flap picks up on the chain gets draged into the engine and stops the back wheel dead?
jc
The back wheel won't be the only thing dead! Problem is that's what will have to happen before someone sees sense.
The other amendments to the containment rules are sensible and achievable but the rubber flaps are not clever or practicable.
Who is it who thinks up these gems of wisdom?
Re: Can we run tuned engines in club FII
Posted: Sat Feb 11, 2012 8:40 pm
by Eddy Wright
Rubber flaps ! Rubber curtains!
Can anyone explain to me what type of rubber will withstand a chain moving through it at high speed. I would think the chain will cut it to pieces before Quarter Bridge.
Re: Can we run tuned engines in club FII
Posted: Mon Feb 13, 2012 12:29 am
by teamradar
Eddy Wright wrote:Rubber flaps ! Rubber curtains!
Can anyone explain to me what type of rubber will withstand a chain moving through it at high speed. I would think the chain will cut it to pieces before Quarter Bridge.
You're probably right Eddy, but it would have been there for scrutineering so it must be safer.