Author Topic: Iced Carb remedy? (Pictured Story)  (Read 3412 times)

Offline LJ.

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Iced Carb remedy? (Pictured Story)
« on: 31.01. 2010 17:40 »
Up early and out at 8am for the Newark and Notts autojumble which was not to be!

I was prepared for temperatures of above 35 thousand feet in my flying gear and boy I was warm as toast all day long apart from toe ends and finger ends. The fairing and legshields on the Red A10 were a real boon on a day like today...



The roads were really nasty and white just about right across on even the busiest roads in South Lincolnshire. I was riding along wondering if it is safe to ride on the wheel tracks of other cars or the white centre where road is often a bit more unworn and grippy but white frosted. What do you think?

The main problem however turned out to be a frosting up carburettor, the outside of carb was icing up even after stopping and allowing to thaw for five mins. I found that the throttle slide was sticking open at 40mph, not good as changing gear made the back wheel slip, so a complete new approach to clutching was called for...



So how do you combat this problem? Apart from lagging the throttle cable and tieing a hot water bottle around carb, I found that a stop every four or five miles was called for, it soon thawed with engine heat but there was not much heat emitted from the engine on a  morning like today!



I soon... well eventually got to the autojumble place but found it to be cancelled, so, a turn round after a bacon sarnie and coffee was all that I could do but the morning was warming up nicely so I decided to take the long way home. Taking in scenery and stopping at railway crossings I noticed this old Great Northern Railway signal box with its modern double glazing... Bet the guy in there was cozy!



I also like looking over old airdromes and passing Barkstone heath I'd always wanted to go back lanes to find the remains of an old Canberra, and there she lies...



On my 'long way back home trip' I come across the 'Mother' of all pot holes! This was an abyss! Never seen anything as bad as this one, came round the corner and there it lay smiling at me!





But I got round it okay, just need to make a report about it on that pot hole report website thingy. Got home safe to give the old bike a good wash down of collected salt. In all... A brilliant day out!

So your comments please...

1/ How do you deal with frosted up carbs?
2/ Where is the safest part of a frozen road?

Note: Pictures are of a low resolution and hosted on Photobucket to make downloading quicker to your computer...  *smile*
Ride Safely Lads! LJ.
**********************
1940 BSA M20 500cc Girder/Rigid- (SOLD)
1947 BSA M21 600cc Girder/Rigid-Green
1949 BSA A7   500cc Girder/Plunger Star Twin-(SOLD)
1953 BSA B33  500cc Teles/Plunger-Maroon
1961 BSA A10  650cc Golden Flash-Blue
1961 BSA A10  650cc Golden Flash-Red

Online bsa-bill

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Re: Iced Carb remedy? (Pictured Story)
« Reply #1 on: 31.01. 2010 17:55 »
Question one - modesty forbids me to answer
Question two - the bit underneath any of the seats on the next bus to come along

Jokes aside - well done for braving elements and pot holes

All the best - Bill
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline trevinoz

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Re: Iced Carb remedy? (Pictured Story)
« Reply #2 on: 31.01. 2010 20:55 »
Frosted up carby?
Ice on roads?
Never heard of it.
Trev.

Online Brian

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Re: Iced Carb remedy? (Pictured Story)
« Reply #3 on: 31.01. 2010 21:21 »
I got to hand it to you LJ, your dedicated. I dont know how you do it, riding in those conditions. When it gets down to 10 degrees C over here I start complaining ! Actually I start complaining well before then, I dont like the cold.

I went for a ride yesterday, it was 35 C, just right.

Offline rocket man

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Re: Iced Carb remedy? (Pictured Story)
« Reply #4 on: 31.01. 2010 22:27 »
i think the safest thing to do is dont go out when its frosty

Offline a10 gf

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Re: Iced Carb remedy? (Pictured Story)
« Reply #5 on: 31.01. 2010 22:33 »
 *ex* LJ, brave feat, nice story. And looks like you are going to board one of these...


As for the safest parts of an icy road ? None, of course!
The carb throttle icing, never experienced it, but I'd guess trying car lock anti-icing spray or 5w50 oil would improve matters quite a lot. Maybe in the cable as well.


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A10 GF '53 My A10 website
"Success only gets you a ticket to a much more difficult task"

Offline MG

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Re: Iced Carb remedy? (Pictured Story)
« Reply #6 on: 01.02. 2010 10:23 »
LJ - my highest regard, you are really weather-proof

about the icing carb: what about deflector plates that guide part of the warm air from the cylinder to the carb (and into it's inlet/air filter, perhaps)? Could be fixed to the rocker box studs, maybe.
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

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Offline MG

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Re: Iced Carb remedy? (Pictured Story)
« Reply #7 on: 01.02. 2010 10:45 »
I just remembered that years ago an old mechanic told me that mixing isopropyl alcohol to the fuel (50cc of alc. to 10l of fuel) would bind the water in the fuel and prevent it from condensing and therefore icing the carb or injector nozzles.
This once prooved very helpful when I unintentionally dropped some snow in the tank of the car while refuelling. After the car was parked outside it would not start in the morning, so I put it into the garage for a few hours to melt the water in the injectors and poured some isopropanol in the tank. That solved the problem.
Pure ethanol should work, too.

Cheers, Markus
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria

Offline tombeau

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Re: Iced Carb remedy? (Pictured Story)
« Reply #8 on: 01.02. 2010 11:28 »
We get fuel additive here, you buy it at the petrol station and pour a bit in. I'll have a look and see what it says on the bottle.

Cheers,
Iain

Offline MG

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Re: Iced Carb remedy? (Pictured Story)
« Reply #9 on: 01.02. 2010 11:35 »
I know this stuff from Norway, it's generally called "Kondensfjerner" (condensate remover???, help me out, Iain  *smile*).
I got no idea what it really is, but I could imagine that the main component is either isopropanol or ethanol.
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria

Online bsa-bill

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Re: Iced Carb remedy? (Pictured Story)
« Reply #10 on: 01.02. 2010 11:47 »
available on the ever popular Ebay - item number 130332176067

uses listed as                   
Amazing Glass Cleaner for Smear free windows             
Disinfectant and Cleaning  Agent for Clean Rooms / Food Preparation Areas
Antiseptic and Anti-Bacteria Agent                   
General Cleaning Solution                   
Additiive for Screen Wash                   
General Laboratory Use                   
Ideal for cleaning CD's, records, DVD's                
Stain Remover                   
And Many Other Uses we don?t even know about    ( maybe we could add -Amal carb de-icer)    

All the best - Bill      
 
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline tombeau

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Re: Iced Carb remedy? (Pictured Story)
« Reply #11 on: 01.02. 2010 11:57 »
"Petrol de-icer"
Nothing on the bottles but got this info about "Masinol" from a .pdf on their website.

http://www.lasol.fi/tuotteet/Masinol.html

It gives percentages too, but you get the idea.

Etanoli
isopropanoli
Metyylietyyliketoni
Metyyli-isobutyyliketoni

Cheers,
Iain

Offline flashblack

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Re: Iced Carb remedy? (Pictured Story)
« Reply #12 on: 01.02. 2010 11:59 »
My japanese bike suffered the same problem, and i bought a product called "PRO FST", which cured the problem. Below is a link to the stuff:
http://www.silkoleneoil.com/techtip7.htm
 
1959 golden flash
1949 B31 plunger

Offline MG

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Re: Iced Carb remedy? (Pictured Story)
« Reply #13 on: 01.02. 2010 12:27 »
****smart-idiot mode on****

Metyylietyyliketoni = Butanone: used as denaturing agent for alcohols, improves knock-resistance of fuels
Metyyli-isobutyyliketoni = Methyl isobutyl ketone (MIBK): no idea what this is for. Wiki says it is a derivative of Acetone which is a denaturation agent and used in some countries to improve the octane number of fuels too. Maybe has the same effect?

****smart-idiot mode off****

But I guess the hint with Ethanol and Isopropanol is not that bad...
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria

Online Triton Thrasher

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Re: Iced Carb remedy? (Pictured Story)
« Reply #14 on: 01.02. 2010 12:50 »
Has anyone suggested removing the Tufnol spacer?