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M110 valve adjustment tips?

6045 Views 27 Replies 5 Participants Last post by  nobby
I have read Nobby's valve adjustment writeup and it is my guide.

I have the feeler gauge, the special wrench, the valve cover gasket and the will to do it as an oil change is up.

My question is there anything to look for while the engine is opened up? I want to measure the timing chain stretch, I think you line the engine up to TDC on the crank pulley then you compare the marks on the cam and see how much it is off.

When I turn the motor over is there anything I should do other than

Is there anything to look at? Check the rocker arms or rattle clips for wear?
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Would you measure stretch on both intake and exhaust?
Thanks Dave!
Thanks for the tip Nobby, I will check the rails and sprocket teeth for wear.

I'm hoping this isn't like every other job which turns to crap on me.
I got it apart, so now to adjust the valve clearances and to measure chain stretch. I had to take off the fan to get at the crank pulley, it was a bit tight.
One last question, is there a torque sequence on the valve cover for reinstallation? What is the torque spec on the valve cover gasket, didn't feel very tight when I removed it.
Ok I'm going to button the car back up tomorrow. Overall a pretty easy job and I'm glad I did it as most of the valves were pretty tight.

I measured the chain stretch and it is 2* advanced so pretty much dead on. Me so happy. Hopefully the car still runs after I'm done.

Thanks for the help and tips and thanks to Nobby for writing up the procedure.

Anyone know the valve cover torque specification? It felt like it was one pretty loosely so it must not have to be too tight.
I just got the car put back together. The car now idles at 1000rpm which is too high, so I'll let my mechanic adjust the idle and CO. Another issue is one of the lifters got more noisy after I adjusted it, I don't know if I didn't do it right or maybe something is worn out. One of the exhaust valve is making a racket now, don't really know if I should just change the oil and drive it or take it back apart and make sure I adjusted it correctly. I was pretty careful doing the adjustment though.
I hear what you are saying Pete but the engine is much noisier than it was before and it sounds to be coming from on of the exhaust rocker. I hear the m110 engine is loud and now mine is, where before it was rather quiet.

As an aside the cold starting problem I had is gone now so it might have had to do with the valve adjustment.

I'll drive around some and see what happens, worse comes to worse I get to redo the job, just like every other job I do.
I looked at the vac lines and they all appear to be attached, I'm going to change them all one of these days though. I'll double check. Maybe a nice little cruise will help seat the rocker. If this is what my engine is suppossed to sound like no wonder people say they are loud.

I'll keep y'all posted and thanks for the information.

I think I may have adjusted the valves on the exhaust sit too loosely which is causing the noise, so apart it comes again.

Edit: The car runs and idles good but almost sounds like it has a miss, but it runs fine. I might be driving it up to the mountains so I'd like the car to be settled correctly. I think I'll probably take it back apart tomorrow just to make sure everything is done correctly then I'll button it up and just drive it.

The high idle died down once the car warmed up so maybe my cold starts will be good finally.

Thanks for the input folks!
OK the car is back apart and I'm going to redo the adjustment.

Does it matter if the car is on the compression stroke when you do the adjustment or is all that matters that the cam lobe point up?
I adjusted one of the intake valves to the spec for an exhaust valve so that is probably what caused all the racket in the engine. I'll button it up and see what happens, thanks for the tips folks!
Fixed, thanks for all the help folks. My car is happy again!
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