Re: Valve train noise 1932 901
Posted by 32model901 On 2018/1/4 13:21:52
Marty,
Sorry I couldn't get back to you earlier, been busy at work.
The lifters will not fall thru into the pan, the hex nut is larger than the lifter body.
I found it easier to remove the valve springs and slide the valves up, holding them up with clothespins. Do the same for the lifters, it makes removing the rocker assembly easier.
Check the top of the lifters, the adjustment screw usually wears on top. The ones shown in the attached picture are worn and should be refaced.
I ran into a problem where I couldn't get an engine ('32) to run properly. Drove me crazy for 6 months. I finally traced it to a bent cam. The cam had a twist in it and the base circle of a few of the cam lobes were not on the same center as the cam journals. The engine probably had a few stuck valves and when someone tried to crank it, it twisted the cam.
This made adjusting the lash impossible. Ended up pulling the cam and having it straightened and reground.
Hope this isn't your problem.
I ended up finding it by putting an indicator on each valve and measuring the lift as I hand cranked the engine. I adjusted the lash to zero first. When I saw the indicator moving .008 to .010 when the lifter was on the cam base circle and the engine cranked, I knew something wasn't right.
Regards,
Dave
Attach file:
(89.25 KB)
Sorry I couldn't get back to you earlier, been busy at work.
The lifters will not fall thru into the pan, the hex nut is larger than the lifter body.
I found it easier to remove the valve springs and slide the valves up, holding them up with clothespins. Do the same for the lifters, it makes removing the rocker assembly easier.
Check the top of the lifters, the adjustment screw usually wears on top. The ones shown in the attached picture are worn and should be refaced.
I ran into a problem where I couldn't get an engine ('32) to run properly. Drove me crazy for 6 months. I finally traced it to a bent cam. The cam had a twist in it and the base circle of a few of the cam lobes were not on the same center as the cam journals. The engine probably had a few stuck valves and when someone tried to crank it, it twisted the cam.
This made adjusting the lash impossible. Ended up pulling the cam and having it straightened and reground.
Hope this isn't your problem.
I ended up finding it by putting an indicator on each valve and measuring the lift as I hand cranked the engine. I adjusted the lash to zero first. When I saw the indicator moving .008 to .010 when the lifter was on the cam base circle and the engine cranked, I knew something wasn't right.
Regards,
Dave
Attach file:
(89.25 KB)
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