Re: 1951 300 ticking noise

Posted by Packard Don On 2022/11/11 16:51:36

To stop the keepers going into the pan, buy some rubber plugs that most hardware or automotive stores carry or just use a piece of paper towel, making sure to get it all out when done.

For testing the lifters, it was decades ago that I did it but it doesn't take any special equipment even though the shop manual shows a special tool. The tool would make it easier but it is not needed. Don't clean anything in gasoline but use a good solvent and wear gloves as solvents can cause permanent skin damage that goes system deep as happened to my brother so that any petroleum product now blisters and takes his skin off!

The plunger pulls out so remove that and make sure that the ball at the bottom is free and soak in the solvent while apart. Inspect the surfaces for scuffs or scratches and if there are any, those may need to be replaced.

Don't mix up the plungers between their bodies and be sure to mark the lifter assemblies so that you can put them back in the same positions when reinstalled.

Dry thoroughly with compressed air, reassemble with clean engine oil. For testing, I had a pan of clean oil and used a pump pliers to squeeze down the plunger and with the tip in oil, I let it back up to draw some in, then did it again to be sure that there was a stiff resistance once it was filled and compressed. If little or no resistance, then the check ball is still stuck or has a damaged or dirty seat so will need further testing and cleaning. Be careful not to let it suck in air while testing. Not that it hurts anything but it will negate the test.