[johndawn]

hello its me again dawn got a new problem hard to start when cold but onces started the tic over is uneven it goes up and down after a little while it tic over ok. then when you put it into drive it cuts out but when you put it into park and start the engine the tic over is up and down, but onces the car is hot there is no problem drive perfect has anyone got any idea to what it might be or as anyone had the same problem many thanks dawn 1990 3L tubro auto.

hope some one can help me before i smash it up

also can the valve guides seals be changed with the head on or with the head off