HYD lifter pre load?????

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Re: HYD lifter pre load????? [Re: jp15] #1434102 05/10/13 06:57 PM 05/10/13 06:57 PM
Joined: Oct 2003 Posts: 7,506 Az Crizila master
Crizila master Joined: Oct 2003 Posts: 7,506 Az	Quote: totally new to Me. Question ? can I adjust my adjustable rockers down to bottom out and back off say 60 thou. to achieve proper pre load?.( lobe on base ) ( HYD cam) tried the finger turning way,but rod up against rocker with adj. backed all way out and has slight resistance there ???. probably a thread here on this but I can't find it. any help appreciated. Thanks, Jim Yes, you can do it that way as long as the lifters are completely void of oil. As long as you are within the range of the lifter plunger travel it will work, but I wouldn't suggest it. It sounds like you have other valve train issues ( push rods too long, etc ) that will cause incorrect valve train geometry - that can lead to other issues such as poor or incorrect oiling. Suggest you get yourself an adjustable push rod and start from there. If you are running rocker shafts, you might consider shimming them to get the clearance you need if you don't want to buy the correct length push rods. It would be better than your suggested adjustment method. Fastest 300

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