PCV question

[bchene]

Have been trying to correct an erratic idle in an ex-mod 109 with a 2.25/Zenith. Have rebuilt the carb, timing is ok, valves adjusted and no vacuum leaks. A friend mentioned the PCV valve (looks original and the diaphram is suspect) and thinking they were a few dollars went to order one, surprised (very) at the cost of a replacement PCV. Has anyone used an aftermarket, and if so do you have the manufacturer and part number? Thank you very much

[sven]

Im pretty sure you can just buy the PCV diaphram for around $15 instead of buying the complete valve.

[TeriAnn]

Im pretty sure you can just buy the PCV diaphram for around $15 instead of buying the complete valve.

The unit is pretty robust and usually never dies. The rubber hoses & diaphragm occasionally need replacing & you need to make sure the little hole in the top is clear.

According to the Land Rover factory maintenance schedule the valve should be cleaned and diaphragm inspected every 8 thousand miles (every other 4 thousand mile maintenance).

The factory maintenance schedule is your friend.

[siii8873]

To check and see if it is the PCV disconnect it and plug the vacuum line. The vehicle should then run OK if the PCV is the only problem.

[TeriAnn]

To check and see if it is the PCV disconnect it and plug the vacuum line. The vehicle should then run OK if the PCV is the only problem.
It might be faster just to flip the bail & examine the diaphragm & the rubber tubes.

When you are done doing diagnosis it would be a good idea to keep the PCV connected. It helps keep the inside of your engine cleaner and it doesn't degrade performance when properly maintained.