rough idles and clicking valve

would be gratefull if you people could help
i got a problem with my 69 marquis 429 2v
its rough idling and one valve is clicking i am triyng to get some info on what could be the problem thanks in advance
seb

thanks for your help i will pull the valve cover and look what i can see

could be crappy low grade gas or maybe a timing problem

it was the breaker point distributor i had a hard time setting it right maybe i should upgrade thanks every one

for a cheap but well effective upgrade you can goto a petronix unit, in the old distributor, keeps the stock look with the electronic power..... or you could go with an HEI or MSD unit

The Petronix unit works great on the old point type distributors.

As far as the clicking, how long have you had the car? Sometimes the lifters have a tendency to gum up and get sticky if the car sat for awhile or suffered through infrequent oil changes.....

i had the car for 2 years and drove it about 5 milles since
i took a hose and used it like a stetoscope theres a crack on the manifold and the clicking is coming from there
thanks for your help i am realy glad to have found this place i will chek for
the petronix unit

A good temp fix on the manifold crack is to vee it out a bit with a grinder and JB Weld the crack. Then go looking for a replacement.!!!

i wasnt able to solve the rough idle problem it s runing to low but when i am giving a little kick on the gaz sometimes it begins to run normal for awile and then it drops again maybe it is the carb ?
thanks Seb

If you go with the Petronix unit, get the newer one, which is called the Petronix II. The older version could burn out if you left the ignition on with the motor off. The newer version fixes this problem. Great system, I have one on my '71 Lincoln Coupe.

Sebas sounds like maybe an idle passage could be a bit dirty. Maybe the carb would need a kit and a good cleaning? Have you adjusted the idle mixture screws at all?

yes i did play with the screws after cheking my points, sparkplugs i have also check the carb and intake gasket for air leaks gaz pump ect... but it didnt go better it is still operational with no lack of power .
guess i will try a new kit on the carb and see thanks