Quote:
Originally Posted by stupidwhitecat
I’ve been having issues with cold starting and a slight miss at idle, assumed there is a vacuum leak. Bought a smoke machine and have some questions about the results. I used various locations to check for any leaks, below are the results:
Through “snorkel” on airbox cover: leaking around the perimeter of the cover, 2 larger areas on the left and right side. When you remove the cover and look with the filter installed in the cover there are a couple gaps where the plastic is slightly warped. How snug should this be ? I previously purchased new straps. I do notice that at idle if I put some downward pressure on the cover it will drop the idle slightly. I wonder if it is not sealing tight enough ?
Through pop off valve: Small amount from injector seals 4 and 6.
Vacuum hose on distributor: none
Exhaust: none
So I’ll be replacing the injector seals and re-testing. Wondering if I need to be worried about the fitment of the airbox lid ?
|
Stupid,
You are doing the smoke test incorrectly. Inject the pressurized air with smoke to a section that is under vacuum when the motor is running. The snorkel and filter areas are not under pressure or vacuum when motor is running.
Tony