just a thought about oil
Outstanding HDF Member
Joined: Oct 2009
Posts: 2,488
Likes: 30
From: Maryland near DC
I don't think your reply pertains to stock harley engines. the push rods in stock 88, 96, 103 engines are non adjustable....they are hollow tubes with little ***** at each end...with an oil hole. POINT being....I don't think it matters as to what cuased it .....ISSUE is a bent rod is a shorter rod....a shorter rod will have less lift...as a mis adjusted rod...so you get Ticky Tick.....not an oil flow or pressure issue. I was able to check my rods when I had them out for my engine upgrade and they were all bent. NOW, I wonder how many ticky tick problems are actually bent rods....how much of a bend are we talking...not much....but it can be measured and if you roll the rod on a glass top...you can see the bow as it rolls. BYW, the new rods don't ticky tick.
I would think that the tiny amount of shortening from the bend (can't be more than a few thousandths of a inch shorter..would be taken up by the hydraulic lifter...I mean that is the whole point of using those lifters ..to take up play so you don't have to adjust them...but back to the point of this post...I would wonder if the push rods bent from being at a different angle than the rocker arm....also I wonder if the push rod being full of compressed oil doesn't act as more of a solid steel rod and thus be much stronger than you (or I) would think....begs for more research....
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