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914World.com _ 914World Garage _ 1.7 L dropped valve

Posted by: Rleog Mar 15 2021, 06:58 AM

Jake showing the results of a dropped valve in a 1.7 L.

https://youtu.be/IJAUkZ6tDG8

Posted by: stickyfingers Mar 15 2021, 07:04 AM

QUOTE(Rleog @ Mar 15 2021, 07:58 AM)

Jake showing the results of a dropped valve in a 1.7 L.

https://youtu.be/IJAUkZ6tDG8

Very cool.

Posted by: barefoot Mar 15 2021, 07:11 AM

Don't know if the 1.7's had sodium filled exhaust valves or not, but when starting rebuild on a 2.0, starting to rebuild the heads, I gently rapped the valve stems with a plastic mallet to see if any were stuck, one snapped off near the head and was clearly corroded both internally & externally. NEVER re-use 40 yr old sodium filled exhaust valves !!

Posted by: 914werke Mar 15 2021, 10:34 AM

Ummm... Id say simply that you probably shouldnt use any valve that looks like its been underwater for a couple of decades!!!!!