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weber carb/manifold

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weber carb/manifold
#1
fireball61 Avatar
fireball61 ted openshaw
lipscomb, AL, USA   USA
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1975 MG Midget 1500
1992 Jeep Wrangler
2000 Nissan Xterra
i just obtained a weber carb/manifold for m,y 1500...i cant install it now cause my car is having the floor pans replaced....but....i see on the bottom of the manifold a 1/2 inch tube.....it is just a tube...straight through ....no connection to the intake ......whats it for and what if anything connects to it................thanks...ted

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Re: weber carb/manifold
#2
fireball61 Avatar
fireball61 ted openshaw
lipscomb, AL, USA   USA
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1975 MG Midget 1500
1992 Jeep Wrangler
2000 Nissan Xterra
i think i got it.....the heater hose connects there?.....what does that do technically?..............tnx

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Re: weber carb/manifold
#3
jmac Avatar
jmac Gold AdvertiserAdvertiser Jere McSparran
Greenup, IL, USA   USA
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1970 MG Midget "(SOLD)"
1978 MG Midget "Therapy"
1978 MG Midget "(SOLD)"
I think the purpose is heat transfer. The water flowing it keeps the manifold from over-heating.


Jere McSparran
JMAC Engine Shop
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Re: weber carb/manifold
#4
hawkeye brad boner
malaga, WA, USA   USA
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what brand of manifold came with the weber ? and what weber carb?

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Re: weber carb/manifold
#5
fireball61 Avatar
fireball61 ted openshaw
lipscomb, AL, USA   USA
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1975 MG Midget 1500
1992 Jeep Wrangler
2000 Nissan Xterra
carburator is 32/36 dvg [man choke] ....has a weber america sticker on it .....manifold has no markings other tham bac 1 100.054 .......they both came from europarts direct in ny..
regarding the tube question.....cooling would make sense except that the water flowing through it is hot water......???????.....ted

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Re: weber carb/manifold
#6
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ronlcraven Ron Craven
Clovis, Calif, USA   USA
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Its not to cool the water. Its a preheat for cold starts and cooled weather.

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Re: weber carb/manifold
#7
amnotsam Avatar
amnotsam Paul D
Independence, MO, USA   USA
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1979 MG Midget 1500 "Bridget"
1979 Triumph Spitfire MkIV "Brendolyn"
I have the same carb with pierce manifold and never hooked up the water to the manifold and never have had a problem with starting in any temperature. The original Stromberg manifold also had the water tube as well.

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Re: weber carb/manifold
#8
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ronlcraven Ron Craven
Clovis, Calif, USA   USA
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Yes you can get by without using it.

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Re: weber carb/manifold
#9
Billm Gold Member Bill Masquelier
Santee, CA, USA   USA
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1960 MG MGA 1600
1965 MG Midget MkII
1966 Austin-Healey Sprite "Sprite"
1966 Austin-Healey Sprite "Sprite"
If I lived in a high humidity area I would hook up the heater to the manifold- anyone in the airplane flying arena will recognize that the heat tube is there to prevent carburetor (manifold) icing.
BillM

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Re: weber carb/manifold
#10
ronlcraven Avatar
ronlcraven Ron Craven
Clovis, Calif, USA   USA
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Bill, you hit the nail on the head!

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Re: weber carb/manifold
#11
Dkissick06 Drew Kissick
Richlands, NC, USA   USA
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1974 MG Midget MkII
I too put weber on and it works. Only thing I can't figure out is what to connect oil separator line to. Does anyone have any hints for me?

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Re: weber carb/manifold
#12
Perdido Avatar
Perdido Gold Member Rut Rutledge
Tuscaloosa, AL, USA   USA
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1960 Austin-Healey Bugeye Sprite "Scarlet"
1962 Triumph TR4
1966 Triumph TR4A
1966 Triumph TR4A    & more
Drew,
You need to drill a hole in the manifold boss, thread it, screw in a nipple, connect the line from the oil separator with a pcv valve inline and hope you get it right. Too much flow and you suck oil, too little and you leak oil. This is for a 1275.
Rut

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