Engine Vacuum
Burning Brakes
Joined: Nov 2005
Posts: 832
Likes: 1
From: Breckenridge Colorado
Originally Posted by ESU
Carb cleaner, starting fluid, the theory is the idle will raise when u hit the leak cause its temporarily closed. The sprays make it easy to get to hard to reach places.
ESU
ESU
I heard that if you can get it, ether is the best for this. Never done it....just what I heard.
Le Mans Master
Joined: Apr 2004
Posts: 7,106
Likes: 38
From: Newark DE
Originally Posted by ESU
Carb cleaner, starting fluid, the theory is the idle will raise when u hit the leak cause its temporarily closed. The sprays make it easy to get to hard to reach places.
ESU
ESU
Thread Starter
Pro
Joined: Apr 2006
Posts: 647
Likes: 22
From: Norwalk CT and Boynton Beach FL
Originally Posted by Bob Onit
Good question
happiedazs, do you have the EGR on the Edelbrock intake or did you purchase the non EGR?
happiedazs, do you have the EGR on the Edelbrock intake or did you purchase the non EGR?
YES, I have an EGR edelbrock manifold ---- now what? Are we concerned with the vacuuum hose to the EGR or something else?
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Originally Posted by happiedazs
YES, I have an EGR edelbrock manifold ---- now what? Are we concerned with the vacuuum hose to the EGR or something else?
Originally Posted by BarryK
vacuum leak is a distinct possibilty somewhere in the system but so are other possibilities for you to check such as a faulty EGR valve or PCV valve.
Drifting
Joined: Jun 2004
Posts: 1,881
Likes: 9
From: staten island ny
Originally Posted by BarryK
starter fluid works but will make a mess. Propane works well. if you have a propane torch just turn the gas on but don't light it of course. If you are near a hose and the idle jumps up it's from the propane being sucked into the leaky hose.
Try isolating all vaccum that leaves the engine,shut it all off inlcuding the brake booster. Now check you vac reading, if it goes up then bring one system online at a time and watch for a decrease. The line with the decrease now gets further attention.
I have a brand new crate that only gets 13-14 inches. To even get it that hi I had to do everything with the vac gauge installed, carb adjustment, valve adjustment timing etc.
esu
Thread Starter
Pro
Joined: Apr 2006
Posts: 647
Likes: 22
From: Norwalk CT and Boynton Beach FL
Good advice from all ---- many Thanks.
Should I remove the fan so with the engine running it doesn't blow the propane and/or starter fluid where I don't want it? Also, I don't follow how to check out a leak from the heads. Can someone be more detailed on that one --- how do you check out the lower area closest to the ground where the head meets the block ---- just pump a lot of oil along the seam or is there a better way.
It's raining in CT today an probably also tomorrow and since I want to do this type of thing outside, I guess it will have to wait unless we get a break in the weather.
Again --- thanks to all for your very fine suggestions
Should I remove the fan so with the engine running it doesn't blow the propane and/or starter fluid where I don't want it? Also, I don't follow how to check out a leak from the heads. Can someone be more detailed on that one --- how do you check out the lower area closest to the ground where the head meets the block ---- just pump a lot of oil along the seam or is there a better way.
It's raining in CT today an probably also tomorrow and since I want to do this type of thing outside, I guess it will have to wait unless we get a break in the weather.
Again --- thanks to all for your very fine suggestions
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Originally Posted by happiedazs
Good advice from all ---- many Thanks.
Should I remove the fan so with the engine running it doesn't blow the propane and/or starter fluid where I don't want it?
Should I remove the fan so with the engine running it doesn't blow the propane and/or starter fluid where I don't want it?
Before you start with the propane or other stuff, pinch off the main line off the back of the manifold and see if it helps
Last edited by Bob Onit; Sep 23, 2006 at 12:59 PM.
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