I need a micrometer to measure camshaft lobe height, journal diameter, and the thickness of valve clearance discs. Would this set give accurate enough measurements? http://www.harborfreight.com/3-piece-micrometer-set-66512.html?utm_medium=cse&utm_source=nextag&hft_adv=40011&mr:referralID=5a9c804a-…

“A jig would be required to measure cam lobe height.” Really? Could a jig be attached to the caliper posted above? "Does a shop manual indicate measuring cam height?’’ Yes, Haynes. I’ll be removing the camshafts to replace stem seals and figured it would be a good time to check the camshafts ''…

Dear mystic, It is useless to ask people here if the measuring instruments that you suggest are accurate. Even if someone owned one identical to what you post, yours may be different; it is not the same tool. Nobody can sit in a chair at a keyboard and predict that a low cost measuring instrument…

Wha Who? I understand what you’re saying and I do plan on checking whatever tool I end up with to make sure it’s measuring properly before using it.

Wha Who? is wrong, it’s easy to buy an accurate gauge from a reputable maker. Mystic, what do you plan to do with it? Are you machining things, or are you wanting to check dimensions?

If you are going to rebuild the engine, a few more measurement tools may be needed…But if this job will be limited to replacing the valve-stem seals (is it burning THAT much oil?) you can easily get by with the $25 calipers…A visual inspection of the camshafts will reveal any abnormal wear, no micr…

I can’t see the expense of costly measuring tools being justified for the occasional DIYer. An inexpensive caliper should work fine if measuring valve shims. You might consider buying a set of GO-NO GO feeler gauges for checking valve lash, etc. These blades have steps on them and will tell you ver…

“If the valve clearance is set with shims, those shims will be marked as to their thickness…” I was already in there not too long ago and had four of the 16 shims removed and out of those four one had it’s numbers worn off to the point that I couldn’t read it so I’m definitely going in armed this …

You must make the clearance measurement with the cams in place and torqued down… The shims are VERY hard material…The markings may wear off but they are dimensionally stable…You insert them with the markings DOWN to protect those markings from wear…A trip to the local bone-yard to glean a handful of…

Micrometer Selection

Maintenance/Repairs

Rod-Knox February 12, 2012, 9:03pm 20

Camshaft wear is usually quite obvious. I’m curious as to what results the OP desires beyond setting the valve train clearance.

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Micrometer Selection

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