| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
08-22-2023, 10:26 AM
|
||||
|
||||
vacuum leak?
what's the best/easiest way to find a vacuum leak.?
Thanks, Dave Where are the most common leaks? |
|
#2
08-22-2023, 08:54 PM
|
||||
|
||||
|
Starter fluid, brake clean,, propane…..can be used.
Old brittle vacuum lines, intake gaskets, brake booster, etc. can all be possible sources |
| The Following User Says Thank You to ID67goat For This Useful Post: | ||
|
#3
08-22-2023, 10:27 PM
|
||||
|
||||
|
Smoke.
__________________
Greg Reid Palmetto, Georgia |
| The Following User Says Thank You to Greg Reid For This Useful Post: | ||
|
#4
08-23-2023, 11:13 AM
|
||||
|
||||
|
Thanks gents
|
|
#5
08-23-2023, 04:39 PM
|
|||
|
|||
|
Quote:
1. Some brake cleaner doesn't burn. If it doesn't enrich the fuel mix, you'll have a harder time finding leaks. Aerosol carb cleaner or propane or starter fluid burns, enriches the overly-lean mixture, RPM jumps up, vacuum leak is easier to locate. I use carb spray. 2. Some brake cleaners become POISONOUS when burned. Creates phosgene gas, can SERIOUSLY screw up your body. Maybe kill you. |
| The Following 3 Users Say Thank You to Schurkey For This Useful Post: | ||
|
#6
08-23-2023, 05:23 PM
|
||||
|
||||
|
Quote:
|
|
#7
08-23-2023, 08:26 PM
|
|||
|
|||
|
Spray bottle & fine mist of water works great & no mess to engine paint & coatings
|
|
#8
08-23-2023, 08:54 PM
|
||||
|
||||
|
Pieces of vac hose, one end next to your ear, the other used a probe around suspected leak areas.
George
__________________
"...out to my ol'55, I pulled away slowly, feeling so holy, god knows i was feeling alive"....written by Tom Wait from the Eagles' Live From The Forum |
|
#9
08-23-2023, 08:59 PM
|
|||
|
|||
|
I’ve always used carb cleaner, since if there is a vacuum leak the carb cleaner is sucked in killing the engine.
__________________
“It takes considerable knowledge just to realize the extent of your own ignorance.” Dr. Thomas Sowell |
|
#10
08-24-2023, 02:01 AM
|
|||
|
|||
|
Cigar
You'll have to test all vacuum motors with a hand operated vacuum pump that has a gauge. They should not leak down. https://youtu.be/zMok2y05jNE?si=EuWmfZFYMDJe8nXK&t=47 |
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
