ke rollin 20 Posted December 12, 2008 Report Share Posted December 12, 2008 (edited) hey all I'm trying to pull the camshaft out of a 3k engine but I'm having a bit of trouble.. anyone no how to get these suckers out??? iv basically stripped the engine and pulled the head off an the block apart but still can't get it out...? Edited December 13, 2008 by ke rollin 20 Quote Link to comment Share on other sites More sharing options...
beerhead Posted December 13, 2008 Report Share Posted December 13, 2008 You pull it the cam out the front of the motor. Pull off the timing chain and undo the 2 cover bolts and keep the cam level and slide it out. Not an OHC motor, so there's no need to pull the head off while changing cams. I just use a swag of rare earth magnets to stop the lifters falling out with the cam removed. Possibly the lifters are locking the cam in. Quote Link to comment Share on other sites More sharing options...
ke rollin 20 Posted December 13, 2008 Author Report Share Posted December 13, 2008 ok cheers, i got it out now. now i just need to take it to the machining place and we will be in buisness. haydn. Quote Link to comment Share on other sites More sharing options...
DearmanKE Posted December 13, 2008 Report Share Posted December 13, 2008 so you can change cams without pulling the head off? coolio Quote Link to comment Share on other sites More sharing options...
philbey Posted December 13, 2008 Report Share Posted December 13, 2008 yeh but the lifters will drop down and snag the cam. You can get tools to grab the top of the lifter once the pushrod is out the way. I've seen them for Hydraulics at least. Quote Link to comment Share on other sites More sharing options...
trav_555 Posted December 13, 2008 Report Share Posted December 13, 2008 could you hold the lifters up with something like tape if you take the rocker cover off? there the lifters that push the valves up and down right, so you just take off rocker cover and tape em on somehow then undo cam rip it out and then put new one in and un tape lifters? Travis Quote Link to comment Share on other sites More sharing options...
styler Posted December 13, 2008 Report Share Posted December 13, 2008 (edited) not a chance lol, the lifter bores are long straight tunnels with a rod (pushrod) going down inside them and the pushrod goes into a bucket (lifter). the lifter rests on the cam lobe and goes up and down in the lifter bore with the cam rotation. the pushrods just rest in the lifters so when you pull out the pushrods out the lifters tend to stay in the bores, then you need to remove the lifters to remove the cam as they will get in the way of the cam lobes and cam bearing journals as the cam tries to slide outwards from under the bores as they are all up and down over different cam lobes. so you can take them out with a special gripper tool or a strong magnet and keep them in order so you can replace them as removed to match the lobe. check lifters for wear as they are purposely taper ground to aid rotation on tha cam lobe and arent flat as you might expect. new cams need lifters reground to break in properly as far as i know, something to keep in mind. Edited December 13, 2008 by styler Quote Link to comment Share on other sites More sharing options...
trav_555 Posted December 13, 2008 Report Share Posted December 13, 2008 ahh so there not the long poles, they must be push rods :) so push rods get pushed by the lifter which pushes the valves down? Quote Link to comment Share on other sites More sharing options...
styler Posted December 13, 2008 Report Share Posted December 13, 2008 yeah almost :) cam rotates and pushes upwards on lifter with pushrod inside which pushes up on rocker arm which rocks over pivot and pushes valve downwards :D Quote Link to comment Share on other sites More sharing options...
trav_555 Posted December 13, 2008 Report Share Posted December 13, 2008 yay thats what i meant just couldnt explain, cheers, i get it now :) Quote Link to comment Share on other sites More sharing options...
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