Valve Adjustment
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Valve Adjustment
Doing an intake swap on my '70 Sport Custom, and while I had it apart I pulled the heads and replace the head gaskets. Now I am putting it all back together and I've hit a snag. My old chilton book says to take the motor 45 degrees past TDC and then finger tighten the rocker shaft assembly on and then torque it down to specs in sequence. It said the reason for this was to let the lifters bleed down and prevent damage to them, rods and lifters. Now my problem is this, because of a/c and other goodies I was left turning the engine about 6 inches at a time to get to 45 degrees while looking down the spark hole. My question is how accurate does this have to be? I am planning of firing it up tommorrow but I wanna make sure I'm not gonna do some damage if I do. Let me know what you think.
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That position of the motor will put the least amount of strain on the rocker assemblies during their installation. close is good enough, just make sure to evenly screw down the 4 bolts holding holding the rocker assemblies.
I usually go half a turn on each bolt in sequence, all the while making sure all the pushrods are seating correctly.
I usually go half a turn on each bolt in sequence, all the while making sure all the pushrods are seating correctly.
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Thats kinda what I was hoping, sure don't want to take it all back out now! Yes I did run them down finger tight, then snugged with a wrench, and then 5 ft pounds at time slowly tightend them in line to 40 pounds. The old manual says to then check and adjust if need be, its my understanding that there is no adjustment on these, am I wrong? I didn't try the old feeler guage on them yet, but I probably will tommorrow before the covers go back on!
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Yes for now all the old stuff was reused, and it was kept in order, and I did clean off and out all bolts and holes so I could get an accurate torque on the install. Yeah, that's kinda what I thought, there couldn't be much adjustment with it all torqued down the same? Oh well, guess old habits are hard to break!
