Valve Eccentrics Replacement

[SlamedIAm]

While adjusting the valves on my m20 last week my buddy and I found that two wouldn't adjust properly and seemed to need replacement. I assume that if I'm going to replace two eccentrics I should just do all 12 at once?

Should I be replacing the nut and bolt with each eccentric as well or is that unnecessary? I ask because I'm still getting oil on plug #4 so if it isn't this valve cover gasket I'm unsure how much further I want to go with this engine.

[jlevie]

I'd replace all of the eccentrics if one or more need it. The bolts and nuts aren't expensive and it would make sense to use new ones.

[SlamedIAm]

Sounds good. The whole set of eccentrics/nuts/bolts is only $50ish from blunt I just wanted to make sure I wasn't being OCD for no reason.

[Cabriolet]

just make sure to plug all your oil passages and have a small magnet to pick up the dropped parts.

[SlamedIAm]

just make sure to plug all your oil passages and have a small magnet to pick up the dropped parts.

Thanks for the tip. I'm not terribly familiar with the inner workings of the engine, is there a list of the passages or a diagram somewhere I could take a look at?

[priapism]

Do it. They're cheap(ish) and wear out. Mine were all flat sided so I'd adjust the valves and they'd go out of spec in a thousand miles.

[SpecM]

just make sure to plug all your oil passages and have a small magnet to pick up the dropped parts.

+1 you're going to want to get some shop rags and cover the holes

[Cabriolet]

there are a lot of holes. one on the high side, under the intake manifold. and a bunch on the low side next to exhaust. heres a pic of the under side. the far right, shows the 6 lower.


and here is the side hole.