Johnson Hylift Instructions ?
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Joined: Nov 2006
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From: la la land jerzey
Bring them to a machine shop they always have thread count gages - it takes a minuet to give you a number like 24 - 28 - 32 kind of thing
a photo is a guess to see it on line i believe in total 8 different threads were used it was never a standard use thing - reason you need to know exactly as it changes the location of the lifter
a photo is a guess to see it on line i believe in total 8 different threads were used it was never a standard use thing - reason you need to know exactly as it changes the location of the lifter
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Road Master
Joined: May 2014
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From: Canada
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Cruiser
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Jumping on to this thread:
you could hold up a tape measure to the threads and count how many there are within one inch
i have additional questions: how do you test if lifters are good or stuck collapsed/pumped up?
The last time I tried rebuilding my top end with new hylift Johnson lifters and Andrews ez adjustable pushrods, I set the cylinder to just past tdc compression stroke (after intake closes), adjusted the pushrod up 24 flats (4 full turns) per instructions, waited 15 min and verified each one could spin by hand, as far as I know thats all proper procedure. When I recently pulled the spark plugs my front was all crusted in white and the rear was dark, caked with soot and smelled like gas. Both cylinders exhaust valves were white (had a carb issue) but the difference in condition with the spark plugs leads me to think one of the cylinders (or both) had an issue where valves were not opening and/or closing correctly. What do yall think?
you could hold up a tape measure to the threads and count how many there are within one inch
i have additional questions: how do you test if lifters are good or stuck collapsed/pumped up?
The last time I tried rebuilding my top end with new hylift Johnson lifters and Andrews ez adjustable pushrods, I set the cylinder to just past tdc compression stroke (after intake closes), adjusted the pushrod up 24 flats (4 full turns) per instructions, waited 15 min and verified each one could spin by hand, as far as I know thats all proper procedure. When I recently pulled the spark plugs my front was all crusted in white and the rear was dark, caked with soot and smelled like gas. Both cylinders exhaust valves were white (had a carb issue) but the difference in condition with the spark plugs leads me to think one of the cylinders (or both) had an issue where valves were not opening and/or closing correctly. What do yall think?
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Tourer
Joined: Apr 2007
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From:
Jumping on to this thread:
you could hold up a tape measure to the threads and count how many there are within one inch
i have additional questions: how do you test if lifters are good or stuck collapsed/pumped up?
The last time I tried rebuilding my top end with new hylift Johnson lifters and Andrews ez adjustable pushrods, I set the cylinder to just past tdc compression stroke (after intake closes), adjusted the pushrod up 24 flats (4 full turns) per instructions, waited 15 min and verified each one could spin by hand, as far as I know thats all proper procedure. When I recently pulled the spark plugs my front was all crusted in white and the rear was dark, caked with soot and smelled like gas. Both cylinders exhaust valves were white (had a carb issue) but the difference in condition with the spark plugs leads me to think one of the cylinders (or both) had an issue where valves were not opening and/or closing correctly. What do yall think?
you could hold up a tape measure to the threads and count how many there are within one inch
i have additional questions: how do you test if lifters are good or stuck collapsed/pumped up?
The last time I tried rebuilding my top end with new hylift Johnson lifters and Andrews ez adjustable pushrods, I set the cylinder to just past tdc compression stroke (after intake closes), adjusted the pushrod up 24 flats (4 full turns) per instructions, waited 15 min and verified each one could spin by hand, as far as I know thats all proper procedure. When I recently pulled the spark plugs my front was all crusted in white and the rear was dark, caked with soot and smelled like gas. Both cylinders exhaust valves were white (had a carb issue) but the difference in condition with the spark plugs leads me to think one of the cylinders (or both) had an issue where valves were not opening and/or closing correctly. What do yall think?
Thread Starter
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Road Master
Joined: May 2014
Posts: 827
Likes: 59
From: Canada
I pulled the push rods etc today, the thread count on the push rods is 25 tpi. So acn anyone let me know what/how the adjustment is?
There is no name on the push rods so there was no help there.
On a slightly different note, the inner cam bearing is a Koyo, seems fine, is there any point in replacing it, with a new Koyo, which i already have?
The lifters seem fine too, but I figure I'll replace those as i'm already in there and have the new lifters already.
