Re: tracking down ticking noise

Posted by JeromeSolberg On 2021/10/28 15:56:20

How terrible do you think it is if I drive it for a couple of 50 mile jaunts over the weekend? It is scheduled to make an appearance about 50 miles away. Even if it is one or two lifters? I have been going through the thought process, and I cannot figure out what might be damaging, excepting maybe the tip of valve stem? If the lifter is bad, well, then it is bad and will need replacing in any case. It starts out o.k. cold and then the ticking starts to appear about 20-40 minutes in, I measure compression and all my cylinders were ~120 psi cold. I replaced a couple of lifters and it made no difference, though I may have replaced the wrong ones or horror of horrors the ones I replaced (which were extras I had from when I replaced them all) may have been bad too! OTOH, it may just be the manifold gasket. I cannot get new manifold gaskets until next week.

Also, on a separate note - how does one effectively torque the manifold? I can get a torque wrench on maybe 3 of the bolts, the rest I just try to "match" the torque I feel on the ones with the torque wrench with my arm and a piece of pipe I slide over the wrench. But some of those bolts are hard to do even that way. I bought a "curved" wrench that fits in there a little nicer, but the lever arm is small so hard to get a lot of torque on that.

I checked my oil pressure and it was 40 psi steady at idle until after about 20 minutes of idling it started to drop a bit, after 40 minutes it was somewhere around 10 or 15 psi, the red light hadn't started to flicker. At idle after an hour of hard use at idle the oil pressure red light will flicker. I haven't installed an oil pressure gage in the car, though the one I have been using is amenable to that, I just was loathe to drill a hole in the firewall and under the dash for one.