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Join Date: Feb 2001
Location: Buzzards Bay, Ma, USA
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valve lifters, how do you inspect?

I've got everything ready to put back together on the cam tower but want to check the valve lifters before they go back in. The engine ran fine before disassembly, the repair is to cure an oil leak. How do you inspect the lifters? Two of them will compress when I push with my finger, the rest will not. Do I have a problem with these two?
A visit to Clark's Garage and a search on this site did not turn up any useful information.

Thanks,
Jon
Old 12-22-2006, 11:08 AM
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Only way I know how to check them is listen - do they tick when it runs? Mine ticked for a few seconds when I changed the oil on startup until the pressure came back, that's it.

BTW, how hard to change the tower cover gasket, that'll be in my future . .
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Old 12-22-2006, 01:28 PM
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Those two are suspect.
Try compressing it in a container of cleaning solvent until you cannot compress it.
Then compress it in a container of oil until you cannot compress it.
If you cannot compress it, then it it's good.
The internal ball check valve was just dirty and not seating properly.

If they don't hold oil and you can still compress them even after cleaning, replace them.,
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Last edited by bazar01; 12-22-2006 at 03:43 PM..
Old 12-22-2006, 02:23 PM
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What i did with a friend was used a couple of spring clamps to compress the center (we used short bolts as stand offs). We let them sit a day or two and whichever ones had collapsed were considered bad. We replaced the collapsed ones with known good ones and the 'clack clack clack' on startup went away.
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Old 12-22-2006, 04:37 PM
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Thanks Guys, I'll try to flush out the 2 suspect lifters tomorrow and then soak in oil and see if they will stay un-collapsed.
This engine had no valve noise before disassembly, strange.
I also found the #2 injector elec connector most of the way off when I removed the rail. I don't know if it was making the connection or not but I'm curious to see if performance improves when it runs again.

Jon
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Old 12-22-2006, 05:59 PM
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Quote:
Originally posted by bazar01
Those two are suspect.
Try compressing it in a container of cleaning solvent until you cannot compress it.
Then compress it in a container of oil until you cannot compress it.
If you cannot compress it, then it it's good.
The internal ball check valve was just dirty and not seating properly.

If they don't hold oil and you can still compress them even after cleaning, replace them.,

This is how I do it as well.
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Old 12-22-2006, 06:38 PM
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