Can a bad PCV valve cause hard starting?
Can a bad PCV valve cause hard starting?
Poor idling and acceleration: On the flip side, a valve that is stuck open can create a lean air-fuel mixture, which can cause backfires, poor idling and sluggish acceleration, and make it hard to start the car.
What causes the fuel tank breather to be blocked?
The fuel tank breather can sometimes be blocked causing a vacuum in the tank which in turn draws the fuel back to the tank. The topic of fuel quality and contamination solutions is controversial. Working with diesel injectors we see the result of poor fuel quality- damage to the internal components.
What to do if Briggs and Stratton exhaust valve tore?
Repeat the feeler gauge process on the exhaust valve using the .006″ gauge, and replace the valve cover. If the gasket tore when you removed it or it isn’t in the best of condition, you can either purchase a new gasket or do what we do in the shop and use PermaTex Ultra Black to re-seal the valve cover.
What kind of wrench do I need to remove exhaust manifold?
A 1-1/16” wrench is required for removal. Be sure to use a 7/8” wrench to hold the manifold tubes during removal. Sometimes a torch is required to heat the A.I.R. check valve during removal. An adapter can be put together to connect the vacuum gauge to the A.I.R. tube. Three pounds of exhaust system pressure is acceptable.
How to troubleshoot a clogged exhaust system?
Any pressure greater than three pounds indicates a clogged exhaust system. If you do not have an A.I.R. pump system the 9/16” nuts can be loosened at the exhaust flange to allow the pipes to drop down. Then road test the vehicle. A vacuum gauge is useful for carburetor adjustment also.
Why is oil in my air intake tube?
I found oil in my air intake tube from the the throttle body to the MAF sensor. Through some research the reason is that the engine has 2 pcv breather valves that will cause the issue due to the rear one being clogged up. Thanks! Loading…
The fuel tank breather can sometimes be blocked causing a vacuum in the tank which in turn draws the fuel back to the tank. The topic of fuel quality and contamination solutions is controversial. Working with diesel injectors we see the result of poor fuel quality- damage to the internal components.
How does a Harley Davidson Top breathing engine work?
Top breathing engines breath, or vent, through the top breather bolts which are threaded into the heads of a Harley Davidson motor. The air inside a motor is saturated with oil. It exits through the breather bolts and into the air box where the air is filtered and the oil is captured in the air filter.
What causes an air intake to crack in a car?
Torn or cracked air intake boot or tube. The air tube or boot is mounted between the throttle bore and MAF sensor can be cracked allowing air to enter the engine that is not monitored creating a lean mixture .
