94 Civic LX
I just went and bought a caliper from harbour freight and it on reads up to like .00" accuracy. Is this enough or should I take it back and get one that reads thousandths ?
Because sometimes they fuck up.why are you measureing p2w clearance?? are you boring the block yourself?? if you take it to a machine shop with your pistons and tell them what p2w clearance you want they will do it...but if you want the gauge you want 1000's .000 at the least.
I know but no where around here sells t gauges. And the biggest mics are only 3 inch. Looks like I'm just going to have to order it :/ and to the other guy, the reason I'm measuring is because this is a high mileage block. If there is excessive clearance, I'm just going to have it bored and go with 75.5 mm vitaras instead of my standard bore vitaras.You don't measure stuff for P2W with calipers, you use micrometers and preferably a bore gauge.
how should I go about doing this?
^^^That's the gist of it from my understandingT gauges and a micrometer, end of story.
Measure the cylinder bores with your t gauges at 3 points then measure the t-gauges with the micrometer. Be sure to measure the bores front-to-back and side-to-side to ensure the cylinder is not egg shaped.
Measure each piston at 3 points with the micrometer. Subtract the largest piston diameter measurement from the cylinder bore measurement and you have your P2W clearance.