finding/fixing an intake leak
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Ultimate HDF Member
Joined: Nov 2009
Posts: 7,079
Likes: 21
From: Queens, NY
finding/fixing an intake leak
gonna start trouble shooting my exhaust popping and backfiring.
going to triple check my exhaust, but i don't think that's the problem.
what am i looking for on the intake?
do i do the old brake parts cleaner trick and see if the intake is sucking it in?
going to triple check my exhaust, but i don't think that's the problem.
what am i looking for on the intake?
do i do the old brake parts cleaner trick and see if the intake is sucking it in?
Road Warrior
Joined: Apr 2010
Posts: 1,739
Likes: 10
From: Suffolk, England
I've had more luck with an unlit disposable ciggie lighter, directing the gas at the intake seals and looking for a change in revs.
Seasoned HDF Member
Joined: Jul 2008
Posts: 9,278
Likes: 1,138
From: southeast PA
Foxter, I thought you would've used WD40. But the butane idea is good. The special tool from HD is basically a wand for a propane torch. (not a flashlight).
Anyway, I use throttle body cleaner. Just have to be careful not to get it into the air cleaner. And since I test for intake leaks when the motor is hot it's a little easier to reach the manifold with a spray.
Anyway, I use throttle body cleaner. Just have to be careful not to get it into the air cleaner. And since I test for intake leaks when the motor is hot it's a little easier to reach the manifold with a spray.
Use Carb cleaner, not brake cleaner. Brake cleaner is pretty corrosive and will likely damage any surrounding finish you get it on, carb cleaner will do the same job and not cause harm.
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Road Master
Joined: Jan 2010
Posts: 859
Likes: 14
From: Millsboro Delaware
If you use Carb cleaner make sure it is throttle body compatible. I got a lot of warnings last year trying to diagnose a problem on my sons car that was narrowed down to a throttle bodies sensor and I was warned to make sure the cleaner was safe for throttle bodies....
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