Cams & lifters
Road Captain
Joined: Jan 2011
Posts: 547
Likes: 3
While you can't reuse flat lifters, roller lifters can be reused as they are designed differently and generally are subject to less friction and wear. These do not "require the lifter and cam lobe to wear-in or mate to each other," according to Summit Racing. It is important to assess whether the roller lifters you want to reuse are worn. First, check if they still roll smoothly. Also, you should clean and check the lifters for wear and discoloration from heat. You should check the needle bearings and the axle as well as the wheel. If they are worn, at best they will not work well or last very long. At worst, they can end up damaging your engine.Also a bad lifter is determined by its' bleed down rate (assuming you have correct oil pressure). There is a special service tool or you can test them on the engine.
(FROM INTERNET)
(FROM INTERNET)
Tourer
Joined: Dec 2010
Posts: 372
Likes: 1
From: Denver Colorado
Cams and lifters
It is a good idea to do so. Your base circle on the new cams may not be the same as the old, and the rollers in the lifters may be worn. No point in not doing it right from the start. If the existing lifters are basically new with no wear and the base circle is the same you could leave them in. Use adjustable pushrods and new covers - unless you are going in from the top.
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