Exhaust leak search
Has anyone used the pressure from a vacuum cleaner to test for leaks in the exhaust system?
The car is not used often and there is a problem which means that it is best not to idle for any length of time from cold.
With the exhaust cold and with air pressure applied it should be easy to feel for a leak.
Would air leak past the pistons on the exhaust stroke? And would that remove the oil around the piston? For a six cylinder how many cylinders would have the exhaust open.
I thought if the plugs were removed the air would escape from the plug hole with the open exhaust valve, and some oil could be injected and the plug replaced.
Or is there an easier way.