Very informative steve, keep doing what your doing, guys like you UTG and others are really helping me learn high preformance engine building and tuning and mechanical operation and what is best for certian applications and what isnt. Im so blessed to learn about this stuff. They only teach about service and repair and diagnosis at school, but no high preformance. Thank you so much
As Steve said you use a hyd lifter if you want a quiet setup. That is of course not the case if you use Morel hyd lifters which rattle like a steel bucket with bolts in it. They are noisy as hell, worse than solid. Just really bad design. So just a word of advice if you do want a "set and forget" quiet hydraulic lifter for your engine NEVER BUY MOREL.
I need 8 tappets for a 30 yo diesel engine (Westerbeke) but none can be found. Are there businesses that could/would make them for a relatively reasonable cost?
The lub is not the problem for a new cam going flat. Take a new lifter wipe the bottom off drag your finger nail across it take a pencil and drag it across the lifter you can feel the file as it is filing the lead off of the pencil along with your finger nail. A ground surface is a poor finish. Now take a sheet of red crocus cloth and a old phone book or soft back book `put the sheet down face up. Now take the lifter an rub it in all directions tilting it as you go (a lifter is crowned) until it is smooth like a piece of glass now run your pencil across it it is now longer a file and will not file your cam lobes down, a new lifter is a file. Without doing this what happens is after a cam is run softly for a while, (without polishing the lifter) it finally wears the grind marks off off of the lifer. If you are running real heavy springs a lot of racers will pull the inner spring out to cut the pressure on the cam lobes. When resizing con rods leave the bore 2/10 under sizer wrap crocus cloth around the mandrel then do the pencil and `finger nail test, now you will not have bearing material transfering and killing the oil clearance. Think about this crank shafts are polished after grinding. Me, a long time machinist in large machine shop doing ship repair, paper mill, mining equipment, saw mill, and a GT1 road racer driving a Camaro . This is something I have just kept to myself over the years. Have fun, Don
Hello, I enjoy your videos. ALL NASCAR engines use keyway lifters without oil any incidents. They are required to run the lifters for three races sometimes meaning over 1000 miles. It’s the cheapest insurance you can get. Just saying. 😎
Iam i wrong to assume. At the level of performance these are used in. The oil passages are also modified? I would hate to spend $2000+ on lifters to starve them with factory routes oil passages.
@@jeffsafawi7947 holding engine at high rpms will fill Valvetrain vicinity with oil faster than it could drain, also solid lifters do not need as much oiling as hydraulic
Steve you really know your stuff.
Great info. Thank You.
Very informative steve, keep doing what your doing, guys like you UTG and others are really helping me learn high preformance engine building and tuning and mechanical operation and what is best for certian applications and what isnt. Im so blessed to learn about this stuff. They only teach about service and repair and diagnosis at school, but no high preformance. Thank you so much
As Steve said you use a hyd lifter if you want a quiet setup. That is of course not the case if you use Morel hyd lifters which rattle like a steel bucket with bolts in it. They are noisy as hell, worse than solid. Just really bad design. So just a word of advice if you do want a "set and forget" quiet hydraulic lifter for your engine NEVER BUY MOREL.
I need 8 tappets for a 30 yo diesel engine (Westerbeke) but none can be found. Are there businesses that could/would make them for a relatively reasonable cost?
Why couldn’t you eliminate the lifter altogether and run the push rod directly on the camshaft? Wouldn’t that be the same as running solid lifters?
The lub is not the problem for a new cam going flat. Take a new lifter wipe the bottom off drag your finger nail across it take a pencil and drag it across the lifter you can feel the file as it is filing the lead off of the pencil along with your finger nail. A ground surface is a poor finish. Now take a sheet of red crocus cloth and a old phone book or soft back book `put the sheet down face up. Now take the lifter an rub it in all directions tilting it as you go (a lifter is crowned) until it is smooth like a piece of glass now run your pencil across it it is now longer a file and will not file your cam lobes down, a new lifter is a file. Without doing this what happens is after a cam is run softly for a while, (without polishing the lifter) it finally wears the grind marks off off of the lifer. If you are running real heavy springs a lot of racers will pull the inner spring out to cut the pressure on the cam lobes. When resizing con rods leave the bore 2/10 under sizer wrap crocus cloth around the mandrel then do the pencil and `finger nail test, now you will not have bearing material transfering and killing the oil clearance. Think about this crank shafts are polished after grinding. Me, a long time machinist in large machine shop doing ship repair, paper mill, mining equipment, saw mill, and a GT1 road racer driving a Camaro . This is something I have just kept to myself over the years. Have fun, Don
Had new lifters wipe a cam not doing this.... This was told to me by a 70 year old dude named "Speedy". He used to polish his in a lathe.
Awesome tech info
why do 6.0 and 6.4 power strokes destroy lifters
Too many valve springs and too small of lifter
Ford Circled the problem for us bro
Hello, I enjoy your videos.
ALL NASCAR engines use keyway lifters without oil any incidents. They are required to run the lifters for three races sometimes meaning over 1000 miles.
It’s the cheapest insurance you can get. Just saying. 😎
Iam i wrong to assume. At the level of performance these are used in. The oil passages are also modified? I would hate to spend $2000+ on lifters to starve them with factory routes oil passages.
High end race engines limit oiling to the heads for obvious reasons
Why@@Airman..
@@jeffsafawi7947 holding engine at high rpms will fill Valvetrain vicinity with oil faster than it could drain, also solid lifters do not need as much oiling as hydraulic
How do you feel about Red Zone Lifters ?
Thank uou
Will Lucas lube help my Camry??
🎖