 Aha moment >Can You ID the Source of this Gas Leak in These Photos?, Troublesome gas smell traced to engine compartment..Please help |
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| c12croft |
 Jun 13 2011, 06:44 PM
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Member  Group: Members Posts: 167 Joined: 24-December 04 From: Long Island, New York Member No.: 3,331  |
There, at the base of the Weber 40's, at the base of the passenger side carb throat was wet with gas. Huh? Engine has not run in two weeks.
Photo #1  and > gas found at base of throat at engine head  Close up just as carb throat attaches to engine head  Could it be a drip from above? (after sitting for two weeks??) Versus the Driver side carb which was dry of gas at same location:  and  There's no constant drip, just wetness at the indicated areas that are giving off the fumes that will get me evicted from inside storage. Larger view, thanks Attached image(s) 
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| VaccaRabite |
Jun 14 2011, 10:21 AM
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En Garde! Group: Admin Posts: 13,456 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Webers have freeze plugs which will weep fuel when they are failing. That could be your issue.
I used to wonder why mine had epoxy on the plugs. A year after I cleaned the carbs and the epoxy came off I noticed the leak. The plugs are on the engine side of the carbs. From there the fuel can dribble down the manifolds to the heads. Zach |
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| ChrisFoley |
Jun 14 2011, 11:14 AM
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I am Tangerine Racing Group: Members Posts: 7,934 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None 
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QUOTE(Vacca Rabite @ Jun 14 2011, 12:21 PM)  Webers have freeze plugs which will weep fuel when they are failing. That could be your issue. They're not really freeze plugs but... We routinely take them out and replace them with threaded plugs. I've seen too many fall out and dump fuel all over. |
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| VaccaRabite |
Jun 14 2011, 05:36 PM
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En Garde! Group: Admin Posts: 13,456 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
QUOTE(Racer Chris @ Jun 14 2011, 12:14 PM) QUOTE(Vacca Rabite @ Jun 14 2011, 12:21 PM) Webers have freeze plugs which will weep fuel when they are failing. That could be your issue. They're not really freeze plugs but... We routinely take them out and replace them with threaded plugs. I've seen too many fall out and dump fuel all over. This is something I need to do to my 40s before I install your linkage. Gould you give me a parts list of things I need to do the job? It is as simple as an NPT tap and the correct sized plug? Zach |
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Posts in this topic
c12croft Aha moment >Can You ID the Source of this Gas Leak in These Photos? Jun 13 2011, 06:44 PM
70_914 I always had trouble getting my Dellortos sealed t... Jun 13 2011, 10:32 PM c12croft No, I did not polish or mess with the manifolds in... Jun 14 2011, 09:44 AM
Racer Chris
This is something I need to do to my 40s before I... Jun 14 2011, 06:48 PM Cap'n Krusty Have you even considered the possibility that the ... Jun 14 2011, 10:29 AM r_towle checked your float settings and needle valves late... Jun 14 2011, 11:17 AM John
Webers have freeze plugs which will weep fuel whe... Jun 14 2011, 11:21 AM |
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