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BajaB Samba Member
Joined: May 07, 2009 Posts: 107 Location: Oklahoma
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Posted: Sun Jan 03, 2010 10:44 am Post subject: Carb icing... |
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I didnt know it was even an issue tell I had it happen last week, but basicly my baja has the heater tubes for the intake cut off... I'm looking at getting a manifold (Lame excuse to upgrade my carb too! )
It hasn't left me on the side of the road does but anyone have any suggestions on something to fix this while I wait on getting a manifold.. (will be at least a week) I saw on one thread a light being used and wondered if anyone else had any suggestions |
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Russ Wolfe Samba Member
Joined: October 08, 2004 Posts: 25187 Location: Central Iowa
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Posted: Sun Jan 03, 2010 11:39 am Post subject: |
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Some of the aftermarket manifolds and exhausts look like they have pre-heat, but they are not functional.
I tore an engine down recently, and the aftermarket manifold preheat did not go clear through the lower casting.
And, the Bugpack exhaust it had, where the pre-heat connected, was just the flange, and no hole into the actual exhaust system on either side. _________________ Society is like stew. If you don't keep it stirred up, you end up with a lot of scum on the top!--Edward Abbey
Gary: OK. Ima poop. |
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BajaB Samba Member
Joined: May 07, 2009 Posts: 107 Location: Oklahoma
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Posted: Sun Jan 03, 2010 11:43 am Post subject: |
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Russ Wolfe wrote: |
Some of the aftermarket manifolds and exhausts look like they have pre-heat, but they are not functional.
I tore an engine down recently, and the aftermarket manifold preheat did not go clear through the lower casting.
And, the Bugpack exhaust it had, where the pre-heat connected, was just the flange, and no hole into the actual exhaust system on either side. |
I'll have to keep an eye out on that, thanks for the heads up. |
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larry408 Samba Member
Joined: September 25, 2009 Posts: 66 Location: NW Arkansas
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Posted: Sun Jan 03, 2010 12:28 pm Post subject: |
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Here is what I did to stop my icing problem.
_________________ Larry Gathright
USAF 1968-72
1980 Honda CB900c
1973 Dodge Dart Sport
1969 Baja |
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vw_nick Samba Member
Joined: August 21, 2005 Posts: 391 Location: Nashville, TN
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Posted: Sun Jan 03, 2010 12:43 pm Post subject: |
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I used a piece of 1.25" rubber heater core hose to duct some of the hot air from behind one of the cylinders and plumbed it to the air cleaner, wired it in place. I cut a slice out of the bottom of the hose to make a little "scoop" of sorts. Kinda like Larry's setup shown above, but I spent about 5 minutes on mine. This was for a 200cfm Bugspra which didn't have any heat risers at all and would ice after about 20 minutes on the interstate, and I work ~50 minutes from home. I used to have to leave early to account for time I spent on the side of the road allowing it to thaw out... _________________ Nick |
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TC/TeamEvil Samba Member
Joined: February 16, 2004 Posts: 1769
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Posted: Sun Jan 03, 2010 1:41 pm Post subject: |
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Larry,
Slick fix ! ! ! !
Thanks for the pictures, perfectly simple, simple and perfect. GREAT ! ! |
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larry408 Samba Member
Joined: September 25, 2009 Posts: 66 Location: NW Arkansas
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Posted: Sun Jan 03, 2010 2:01 pm Post subject: |
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It was made from combined ideas that I found on here. It has been in the teens since I installed it with no icing. _________________ Larry Gathright
USAF 1968-72
1980 Honda CB900c
1973 Dodge Dart Sport
1969 Baja |
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bajaherbie Samba Sooner
Joined: November 27, 2003 Posts: 2985 Location: altus, oklahoma
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Posted: Sun Jan 03, 2010 4:44 pm Post subject: |
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larry408, you wife is looking for her cake pan....... _________________ blank |
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BajaB Samba Member
Joined: May 07, 2009 Posts: 107 Location: Oklahoma
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Posted: Sun Jan 03, 2010 4:44 pm Post subject: |
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Hmm, I should maybe consider using my air from the cabin of the bug then.. I've got an oil cooler on the inside as a heater not the safest of heaters, but works. So I could just put my intake near it as the air off it gets pretty hot.
How warm do you think your intake setup makes the air larry? |
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larry408 Samba Member
Joined: September 25, 2009 Posts: 66 Location: NW Arkansas
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Posted: Sun Jan 03, 2010 4:48 pm Post subject: |
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SHH, do not tell her!!! _________________ Larry Gathright
USAF 1968-72
1980 Honda CB900c
1973 Dodge Dart Sport
1969 Baja |
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thefladge Samba Member
Joined: July 25, 2005 Posts: 1290 Location: Anaheim, CA
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Posted: Sun Jan 03, 2010 8:41 pm Post subject: |
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Russ Wolfe wrote: |
Some of the aftermarket manifolds and exhausts look like they have pre-heat, but they are not functional.
I tore an engine down recently, and the aftermarket manifold preheat did not go clear through the lower casting.
And, the Bugpack exhaust it had, where the pre-heat connected, was just the flange, and no hole into the actual exhaust system on either side. |
Those need to be drilled through if you plan to use them for pre-heat of the intake manifold. Most of the aftermarket exhaust systems I have seen are like this. People running dual carbs need not do this. _________________ 1957 Vintage Baja Bug.
2110cc engine, 40 IDF Webers on Gene Berg manifolds, Engle 110 cam, Bugpack 40×35.5 Street Pro Heads, W8CC plugs, 12.5 pound Flywheel, Kennedy 1700 pound pressure plate. |
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Bruce Amacker Samba Member
Joined: December 26, 2007 Posts: 1786 Location: Cleveland, Ohio
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BugMan114 Samba Member
Joined: March 22, 2007 Posts: 3744 Location: Ellenwood, GA
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Posted: Sun Jan 03, 2010 9:30 pm Post subject: |
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I'll try to get some pics later, but basically all i did was take a fresh air hose (like the ones going from the shroud to the heater boxes), clamped one end on the carb (its the same 2 inch sized opening, lol), and took a small K&N air filter that looks kinda like this:
mine is small, like 2.5 inch diameter, with a 2 inch opening, and like 2 inches tall.
anyhoo, i cut an outlet off an old muffler i had, where the fresh air hose normally clamps onto, stuck it inside the fresh air hose from the carb, and clamped the air filter on the end of it (so when i tightened the clamp on the air filter, the clamp wouldn't crush the hose), and stuck it between the pushrod tubes, and ski slopes (the tin on the bottom), so it gets all the hot air comming off the cylinders and heads. Works great, and looks pretty clean as well. the only problem i had was that the hose was rubbing against the lip on the cylinder tin (because i don't have the long rear tin piece that covers the crank pulley). the lip would rub against the hose, and cut it, letting cold air in, and when it got around 15 degrees outside, it was enough air to ice the carb up, so i took a small piece of metal and used electrical tape to wrap around the tube, then wrap the metal piece, so the tin would rub against that metal piece. worked pretty good. and been running it like that for over a month now with no issues. i'll try to get some pics later. _________________ 1974 Super Beetle: Custom resto in progress
1972 Super Beetle: Daily Driver
1971 Std. Beetle w/ 1929 Mercedes Benz Gazelle kit
1960 Baja Bug
1969 Baja Bug
Sand Rail- Homemade
Sand Rail- FUBAR
Aircooled Airheads
Why the hell do they call it a gland nut. its obviously a big fat bolt!!! |
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BajaPete69 Samba Member
Joined: April 16, 2009 Posts: 142 Location: Hacienda Heights, CA
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Posted: Tue Jan 05, 2010 12:32 pm Post subject: |
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Could you post some pics? I'm trying to get as many ideas as possible, but knowing me, I won't get anything put together until winter is over. _________________ http://www.facebook.com/pedrodelnorte |
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PhillipM Samba Member
Joined: January 07, 2010 Posts: 595 Location: UK
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Posted: Thu Jan 07, 2010 9:19 am Post subject: |
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Run about 5% IPA in your fuel, stops it icing up. |
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Gary Massin-Ball Samba Member
Joined: March 10, 2004 Posts: 377
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Posted: Thu Jan 07, 2010 10:30 am Post subject: |
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There's always this!
Cheap and easy! I think all of us has one or both of these in the junk pile.
Gary. |
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