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Leaking carburators

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Leaking carburators #1
MGsfor3Generations Grant MacKay Concord, NC, USA Sign in to contact	Topic Creator (OP) Aug 28, 2015 09:21 PM Joined 16 years ago 425 Posts

So, I jinxed myself. I've been driving my MG to work every day this week since the humidity and temperatures have gone down. Last night I said to my wife how much fun I had driving the car this week. The car must have heard. I went out this morning and smelled a little bit of raw gas. That's not uncommon. I drove to work and shut the car off, and the smell of gas was even stronger. I popped the hood and gas was streaming off the bottom of the front float bowl (HS4 carbs). I can't tell from the top if it's the bowl or if it is the line from the bowl to the jet. I guess I will be taking the carbs off tomorrow to take a look. It feels like the bottom of the bowl might be cracked.

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Re: Leaking carburators #2
lgorg Larry Gorg Renton, WA, USA Sign in to contact 1966 MG MGB "Robbie"	Aug 28, 2015 10:15 PM Top Contributor Joined 12 years ago 3,325 Posts

I had a similar problem with my HS4 carbs. However, I sort of knew it was the float gaskets. Once replace, no more leaking carbs. Be interesting to hear if it is a cracked bowl. I've not heard of that, but then I am sort of new. In the past few years on this forum, I've not heard of a cracked bowl. But I stand to be educated!

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Re: Leaking carburators #3
ingoldsb Terry Ingoldsby Calgary, AB, Canada Sign in to contact 1971 MG MGB	Aug 28, 2015 10:41 PM Top Contributor Joined 20 years ago 20,142 Posts

Leakage from the bottom of the HS4 bowl is almost always that infernal little plastic hose. More precisely, it is the rubber "gland". The gland is kind of a squarish O-ring. VB sells them separately, Moss does not. I think Joe Curto does.

In a pinch, you can use two Viton O-rings stacked on top of each other. Make very sure the old gland is removed from the hole before you put the new one in.

Terry Ingoldsby
terry.ingoldsby@DCExperts.com

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Re: Leaking carburators #4
MGsfor3Generations Grant MacKay Concord, NC, USA Sign in to contact	Topic Creator (OP) Aug 29, 2015 07:14 PM Joined 16 years ago 425 Posts

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Leaking carburators

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