1994 302 Roller Lifter replacement
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1994 302 Roller Lifter replacement
Took the roller lifters out during a engine rebuild. Would like to use the same lifters again but did not mark which holes they came out of...the Haynes manual says they should go into the same holes wince they came. Does it make that big of a difference? I noticed the lifters have numbers on them...could this be a clue as to the order they go into the holes?
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Joined: Mar 2001
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From: So Cal
1994 302 Roller Lifter replacement
I have not done this with rollers and can't say as an "expert" that I am correct, but in general you do not want to reuse a lifter unless it is used on the same cam it originally was used on and on the same cam lobe.
When a lifter and cam are broken in they kind of take a set or the friction surfaces are matched to each other. Changing a lifter to a different lobe or cam will possibly cause it to wear out early, or the cam will wear out early. Most mechanic books I have read make a pretty strong point that switching lifters is a bad idea. Reusing lifters is only advised if they are in good condition AND you are putting them on the original cam and lobe it was mated to. I have read this advice in mechanic books from the 60s up to today and the advice is the same.
A roller might be different, but I wouldn't want to destroy a rebuilt engine, just because I wanted to save a few bucks on lifters.
Good Luck,
Jim Henderson
When a lifter and cam are broken in they kind of take a set or the friction surfaces are matched to each other. Changing a lifter to a different lobe or cam will possibly cause it to wear out early, or the cam will wear out early. Most mechanic books I have read make a pretty strong point that switching lifters is a bad idea. Reusing lifters is only advised if they are in good condition AND you are putting them on the original cam and lobe it was mated to. I have read this advice in mechanic books from the 60s up to today and the advice is the same.
A roller might be different, but I wouldn't want to destroy a rebuilt engine, just because I wanted to save a few bucks on lifters.
Good Luck,
Jim Henderson
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Joined: Apr 2001
Posts: 100
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From: Stafford USA
1994 302 Roller Lifter replacement
Hi,
On a roller cam it doesn't make a difference as long as the lifter is in good condition. The advice given is for a flat tappet cam and must be followed. I've done this on several Mustang roller motors with no problems. Check the roller on the lifter, make sure it rolls smoothly. They seem to last though, I have a set with over 150,000 miles on them and would use thme again. Good luck.
1987 F-250 Lariat 4x4 460 auto
On a roller cam it doesn't make a difference as long as the lifter is in good condition. The advice given is for a flat tappet cam and must be followed. I've done this on several Mustang roller motors with no problems. Check the roller on the lifter, make sure it rolls smoothly. They seem to last though, I have a set with over 150,000 miles on them and would use thme again. Good luck.
1987 F-250 Lariat 4x4 460 auto
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