Can all the bolts be reached without taking anything apart? Motor was rebuilt about 3k miles ago but they are leaking. I suspect they just need to be cinched down a little? Fingers crossed.

 

Just the outer which are the ones that leak anyway. You'll need a 1/4" drive socket wrench with 12 point metric sockets, and an extender. I believe it's 8nm of torque.

 

Thanks

 

PCV valve mod done? without that they will start leaking again.

 

mine dont, I dont have the pcv.

 

I think he means with a blocked PCV valve they're more likely to leak again and there is a mod by best4x4 stickied that can replace the (considered poor) British design with a different approach.

 

They will if you dont clean your valve cover baffle regularly.

 

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That is what happened to mine, because the OEM bolts on valve covers came loose, due to engine vibration. This is how I corrected the problem, which has worked 100% over past several thousand miles, and valve cover bolts remain tight: Most Rover guys try to tell you that your valve cover gaskets need to be replaced, but that is not true. The gaskets are synthetic rubber, and if not damaged for some reason, they will last forever, or close to it, as the rubber simply mashes down to seal any possible leaking, with no gasket sealing compound needed. What needs to be done, is to tighten up the valve cover bolts, so they don't come loose again. I didn't think much of the OEM cover bolts, so I went to hardware store, and bought new allen head bolts of correct length and threads as OEM. Also, I bought new old fashioned split spring lock washers to fit the allen head bolts. Because the top most, upper most, bolts on the valve covers cannot be reached, due to the intake manifold in the way, you cannot tighten these bolts, unless you first remove the intake manifold. However, that is not a problem, because the oil inside the valve covers does not pool up along that upper lip of the covers, it only pools up, to some degree, on the lower lip of the valve covers. So, simply install the new allen head bolts on the bottom ends of covers, with the new split lock washers, and tighten them. Using the allen head bolts makes them easy to reach, with allen wrench that is long enough to reach down on them. The split lock washers don't loosen up, until you loosen them with a wrench, so no more leaking. Works for me.

 

Would Nord lock washers be overkill?

 

Loctite or silicone on the threads is better than lockwashers imho.