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Got bad cam followers? - A DS Guy
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Got bad cam followers?

Posted on Apr 10, 2014 by in Keeping a DS running. |

bad cam followers

My 1971 DS has always run great, but after 40+ years, things wear out.

So around a year ago I started noticing some goop under the valve cover. It looked a bit like greenish mayo. I cleaned it out and drove and it came back. I also noticed I was going through coolant. Obvious conclusion? Bad head gasket. I also noticed noisy valves.

When it was time, it all came apart. Jonathan Burnett is THE DS guy in Texas and he tore it apart. The head was milled and when he pulled the cam followers, they looked like they’d been beaten with a hammer. Time to replace them as well (luckily the cam looked good).

Something I’ve learned. Modern oil has less zinc because zinc causes catalytic converters to have problems. So for older engines, you need certain old school oils or to use a zinc treatment. That lack of zinc over the last 40+ years caused the cam followers problems.

I ordered a batch from the UK (made by a Dutch company in Hungary, purchased through the UK and shipped to Texas).

Jonathan got everything back together and no leaks. No coolant loss. No goop in the valve cover and quiet valves.

It’s probably running better now than it did new.

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