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 36 HORSE
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| posted on June 17th, 2005 at 05:16 PM |
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freezing fuel
I have recently restored my 36 HP 1960 beetle, although I didn't touch the engine. Now when I drive below 15 degrees,
at 65 mph I coughs until I back off the throttle. The top of the inlet manifold & the base of the carb have iced up. The bottom of the manifold is
warm on both sides, indicating that the exhaust heating tube isn't blocked. The only thing different is the engine bay rubbers have been replaced and
now seal properly. Coming home tonight with tape blocking
3/4 of the air vent. It run fine. Why is it getting so cold?
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Anthiron
A.k.a.: Nicko McKay
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The Baja Rejuvenation Begins
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| posted on June 17th, 2005 at 05:36 PM |
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try starting your engine. letting it run for a few minutes and then shutting it off. letting the warmth from the engine de ice the manafold and then
start it again and it shouldnt ice up again. i used to have the same problem with my baja when i was living in a colder area.
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom
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VWCOOL
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| posted on June 17th, 2005 at 09:35 PM |
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I think possibly the manifold heater pipe IS blocked... it should be too hot to touch
Pay your debts, CxxT
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 helbus
A.k.a.: Pete S
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| posted on June 17th, 2005 at 09:37 PM |
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They get blocked with carbon and coke deposits.
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 65busser
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| posted on June 17th, 2005 at 09:50 PM |
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Hey John, do have a stock exhaust?
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36 HORSE
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| posted on June 18th, 2005 at 08:31 AM |
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Giddaye Brad,
Yes it has a NOS Genuine German VW muffler, likewise for the inlet manifold. It's only done 150 miles since fitting them so I doubt they've had time
to carbon up. Plus both sides of the bottom are hot. It has no Automatic cooling air control on the fan housing, but it hasn't had one in the 10
years I've had it.
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Grey 57
A.k.a.: Dean
Son of Jim - Creator of Good
Old Grey Cruiser
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| posted on June 18th, 2005 at 08:37 AM |
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Hi John, the manifold should be hot to touch if its working properly. It will get warm on the ends from heat transfer from the exhaust but not enough
to stop the icing if the motor is prone to this. (they dont all do it for some strange reason) The other way to cure this is use a heating element
that wraps around the manifold. The VW Performance Center in Croydon have these. I used one on my Grey Oval to cure manifold icing. Simple fit and
connects to the + coil wire.
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36 HORSE
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| posted on June 18th, 2005 at 12:39 PM |
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Thanks Dean
Were you still running 6 volts?
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Grey 57
A.k.a.: Dean
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Old Grey Cruiser
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| posted on June 19th, 2005 at 05:02 PM |
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No I was ruinning 12 volts but these units are available in 6 or 12 volt.
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