vacuum leaks
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Joined: Sep 2003
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vacuum leaks
can anyone out there tell me the best way to hunt down a vacuum leak? i have been told i have a leak on my 85 f-250 4x4 with a 351w. i recently put on a new holley truck avenger carb. i have heard of using a bottle of water with some soap in it, but that didn't do a thing, and i found no changes in how the engine ran. the truck runs, but not well. it takes a while to get the truck idling, without me having to rev the engine. thanks for any imput
Post Fiend
Joined: Jun 2003
Posts: 5,643
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From: NE Texas
I always use WD40. It makes the engine rev a little higher when the vac sux on it.
I've never heard of the water/soap thing? It would work on pressure, bubbling and all, but how in the world could you detect a vac leak with it?
I've never heard of the water/soap thing? It would work on pressure, bubbling and all, but how in the world could you detect a vac leak with it?
Senior User
Joined: Aug 2000
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aj10,
I would be glad to give you a detailed guide to search for leaks, but since I'm just getting back from a week off it has left me with too much to do. I have given this same advice to others in the recent past so you should be able to find my postings if you do a search on vacuum leaks in this forum, the carb forum, and the 460 engine forum.
Good luck,
Mark
I would be glad to give you a detailed guide to search for leaks, but since I'm just getting back from a week off it has left me with too much to do. I have given this same advice to others in the recent past so you should be able to find my postings if you do a search on vacuum leaks in this forum, the carb forum, and the 460 engine forum.
Good luck,
Mark
Last edited by mchild; Apr 14, 2004 at 09:17 AM.
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