Hey all, new to this site but I have read a lot of posts and WOW there is a lot of shovel knowledge. Here's what is throwing me on my ride.
I'm running a 1980 FXWG with 80" +.030" jugs, KB pistons 9.5:1 , Vthunder 4040 cam , Jims powerglide big axle lifters in stock blocks with Jims pushrods ( blue anodized). S&S heads, complete assembly from S&S, with roller rockers.
So here's the concern, I took apart my cam chest side to inspect everything and when I checked the rollers of the Jims lifters I found that the rollers of the lifters for the intakes only ( both) had significant up and down movement on their roller axle but no side to side. (as if the roller shaft has been worn on the top and bottom sides only, allowing the roller to have free play up and down approx 0.125" up and down each way)
There is no free play in the rollers for both the exhaust lifter rollers at all !
I have put on at least 40,000 miles on this engine when I assembled it 20 years ago. New S&S Heads were installed about 10,000 miles ago.
Any idea what could have caused this ?
Appreciate any feedback.
Keep well.
I'm running a 1980 FXWG with 80" +.030" jugs, KB pistons 9.5:1 , Vthunder 4040 cam , Jims powerglide big axle lifters in stock blocks with Jims pushrods ( blue anodized). S&S heads, complete assembly from S&S, with roller rockers.
So here's the concern, I took apart my cam chest side to inspect everything and when I checked the rollers of the Jims lifters I found that the rollers of the lifters for the intakes only ( both) had significant up and down movement on their roller axle but no side to side. (as if the roller shaft has been worn on the top and bottom sides only, allowing the roller to have free play up and down approx 0.125" up and down each way)
There is no free play in the rollers for both the exhaust lifter rollers at all !
I have put on at least 40,000 miles on this engine when I assembled it 20 years ago. New S&S Heads were installed about 10,000 miles ago.
Any idea what could have caused this ?
Appreciate any feedback.
Keep well.
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