71MonteCarloMD Posted September 22, 2016 Share Posted September 22, 2016 I replaced the valve cover with original ones and felt valves hitting the cover on drivers side only as the passenger side doesn't feel any valves hitting on cover. What does this means? Quote Link to comment Share on other sites More sharing options...
Leghome Posted September 22, 2016 Share Posted September 22, 2016 You could always put on the thick cork gaskets and that might eliminate the hitting. Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted September 22, 2016 Author Share Posted September 22, 2016 I looked up the depth of the cork gakset by Fel-Pro, it's 7/32" (0.22") - was looking for deep depth and found this at Summit, is this a good one? https://www.summitracing.com/parts/fel-1604/overview/make/chevrolet  Rick Quote Link to comment Share on other sites More sharing options...
Rob Peters Posted September 23, 2016 Share Posted September 23, 2016 What did you torque them. Of course, even if you torqued them down too much I would not think the arms should rap on them. Guess I may be grabbing for straws. rob Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted September 23, 2016 Author Share Posted September 23, 2016 I didnt touch them since I bought from previous owner that rebuilt the engine. I can try use my torque wrench, how many pounds? Â And any specific order in torquing them? Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted September 23, 2016 Share Posted September 23, 2016 I used the thick rubber gasket I got from pep boys had to put a little longer bolts in too. Quote Link to comment Share on other sites More sharing options...
Rob Peters Posted September 23, 2016 Share Posted September 23, 2016 I didnt touch them since I bought from previous owner that rebuilt the engine. I can try use my torque wrench, how many pounds? And any specific order in torquing them? I guess I'm a little confused because in your original post you said... "I replaced the valve cover with original ones and felt valves hitting the cover on drivers side only as the passenger side doesn't feel any valves hitting on cover." Now you say you didn't so it is hard to figure out the problem. Â The torque for the valve cover bolts is 3 ft lbs. Sequence is not very critical. rob Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted September 23, 2016 Author Share Posted September 23, 2016 Rob, sorry I thought you were referring to the valves themselves. Â Will try thick gasket as I believe I will need longer bolts. Â What size should I get? Quote Link to comment Share on other sites More sharing options...
Rob Peters Posted September 23, 2016 Share Posted September 23, 2016 I don't know that a thicker gasket is really the answer. Personally, I would want to find out why it is happening. If they are, in fact, the original ones to that engine then they shouldn't hit with the original type or thicker gaskets. Can you tell if it is just one or multiple rockers hitting? Â A little investigation now could save future issues. rob Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted September 23, 2016 Share Posted September 23, 2016 Aggreeed, are they the orig rockers? orig cam? ect. if theres more lift that would explain it. Quote Link to comment Share on other sites More sharing options...
Leghome Posted September 23, 2016 Share Posted September 23, 2016 When I had my motor out 5 years ago I bought studs for my valve covers and love them. I am not a purists by any means as my 72 shows. The studs allows me to put the gasket on the engine and then put the valve covers on without having to play around getting the gasket lined up. Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted September 23, 2016 Author Share Posted September 23, 2016 I would suspect if it happens on both covers but it only happens on drivers side as I couldn't tell if its hitting in specific area of th cover. Thats my initial thought as theres little difference in depth of gasket thickness. How do I know if the rockers and cam are original or not? Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted September 25, 2016 Author Share Posted September 25, 2016 I want to add note that I replaced the valve covers from Cory M. so how would I know if the valve rockers are original as it still hit the cover on drivers side, not passenger side? Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted October 2, 2016 Author Share Posted October 2, 2016 Any guidance here? Quote Link to comment Share on other sites More sharing options...
72-CLASSIC_RIDE Posted October 2, 2016 Share Posted October 2, 2016 If Valve Cover(s) has internal splash guards, could be that Splash Guard Baffle needs tapped down enough to make needed clearance.  I have had to do this in the past on a rare occasion.  That solved the problem for me. Just a thought!  Doug Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted October 4, 2016 Author Share Posted October 4, 2016 Doug, will check that out. Â Guys, how do I know if the valve rockers are original? Quote Link to comment Share on other sites More sharing options...
wallaby Posted October 4, 2016 Share Posted October 4, 2016 First it's important to establish: was everything fine BEFORE you changed the covers? Chances are good if you don't have performance mods like a rough idle cam, you have the stock stamped steel rocker arms. Aftermarket rocker arms are pricey and don't offer performance gains really, so money is better spent elsewhere as someone starts beefing up a motor. Â It's easy enough to pull off the valve cover and look at the underside for signs of contact. Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted October 4, 2016 Author Share Posted October 4, 2016 Yes, it was fine before changing covers. Here's pic before I put the covers in. I will oull it off to inspect maybe this weekend. Quote Link to comment Share on other sites More sharing options...
monte70car Posted October 5, 2016 Share Posted October 5, 2016 How is the under side of the cover made? I had some M/T cast covers that had dippers that hit the rocker arms. One thing you could do is check the the over all height of your valve train by laying the gasket on the head and then use a straight edge across the gasket and measure up to the rocker arm and then repeat on the valve cover. I'm sure you swap the new covers from side to side and got the same issue (if not you could try and swap them or even turn the cover around). Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted October 5, 2016 Share Posted October 5, 2016 They are the stock rockers and got to assume theres no monster cam in it I would be looking at the underside of the covers. Possable damaged baffle between the rockers or something like that. Compare them to the ones that were on there see if theres any difference. Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted October 12, 2016 Share Posted October 12, 2016 Did you ever find the problem Rick? Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted October 12, 2016 Author Share Posted October 12, 2016 Not yet, hope to get to it this weekend. Quote Link to comment Share on other sites More sharing options...
71MonteCarloMD Posted November 25, 2016 Author Share Posted November 25, 2016 Finally got to work on Monte today, found slight curve on top of the cover, lightly hammered to even it and all is good Quote Link to comment Share on other sites More sharing options...
Rob Peters Posted November 25, 2016 Share Posted November 25, 2016 That is Great Rick. An easy fix is always better than an expensive time consuming one. rob Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted November 26, 2016 Share Posted November 26, 2016 Thats good I love easy fixes Quote Link to comment Share on other sites More sharing options...
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