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new head gasket. insane valve tapping?

recently changed head gasket. could valves tap from the push rods being mixed up? they all seemed to be the same size and i know the other side was exactly the same when put back together but this side is mixed up. could this make the valves go crazy? and i need to replace my water pump because its getting very hot and no coolant moving. and everything is smokin up, took off oil cap and it was steaming. would that have anything to do with making the valves tap?

Answer:

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You have multiple problems all at once! Also you didn't say whether it has hydraulic or mechanical valves, adjustable or non adjustable, -- some have discs that are changed out to make proper clearance (Volkswagen for example on rabbit engines)! So lets start with valve adjustments. Hydraulic lifters could be flat and not pumped up yet (depending on how long engine has run)! Or need adjusting etc! Next problem is overheating, -- did you remove the thermostat to see if water moves through the system? This could be cause of blown head gasket in first place? It is not impossible that water pump could be bad, -- but it is not common, --- if it is turning, it would have to have vanes broken off, or split impeller spinning on shaft to not pump! And this does not happen often! There is no such word as impossible with machines! ................. Steam from oil cap could just be water evaporating out of oil, - and usually with blown head gasket, - water gets into oil pan too! ........ But this part should not have anything to do with noisy valves! Is this an engine with belt driven timing system, or chain driven one with overhead cam? Did you for sure get camshaft timing right, -- if a tooth or two off, it may run, but possibly pistons nicking valves? Also bad timing may make engine run hotter than it is supposed to! If this is a for or chev V-8, (and some V-6es) you can adjust rocker arm lash to get proper clearance. Get hold of a manual for procedure, -- you can look up in auto repair manual in library, - if nothing else!
When you replaced the head gasket, did you properly adjust the valves, as in preload? Doesn't sound like it...as for different length push rods, you'll have to check that repair manual you went by...you did read the repair manual, right? As for the rest, head gaskets must go on only one way. Did you make sure all the holes lined up correctly, and one or more cooling passages weren't blocked by the gasket? Torqued properly, in sequence? Were the intake manifold and exhaust gaskets installed and torqued properly? Sorry to be a nag, but as you can see there is more to it than just unbolting and rebolting parts...
Ok The push rods are fine. There is no order they go in. The valves are taping due to poor lubrication, also did you do a valve job before u put the gaskets on? Also Use STP oil treatment after replacing the gaskets its a thicker oil that lubes better. The water pump wont be ur only issue. it sound like there is some restriction in the cooling system, Firs check the upper radiator hose it should be hot not cold, check the reservoir its shouldn't be over flowing and make sure the V-belt is in good condition make sure there are no cracks in the belt. make sure The thermostat is installed correctly and Check the radiator it self if the radiator is back-up i recommend a new one if u cant affored it remove radiator and have i boiled out clean. Oh just for safe measure get a block test done just so u will know there are no cracks in the block

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