Questions tagged [clearance]

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What is the term for describing the maximum ramp inclination that a vehicle can clear?

Ground Clearance is used to describe the maximum height of an obstacle the automobile can driver over without scratching the underneath (Figure below). Another problem with cars is that they may not be able clear a ramp if the ramp has too much…
Kang Min Yoo
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Checking engine head for flatness: what clearance generally, in mm?

This engine's (Skoda Estelle/120, 70s, RWD, rear mounted engine) head is cast iron, the block is aluminium and I'm checking it's flatness. What would be the correct flatness clearance range? I have seen a few sites, but none says it in a straight…
Aram Alvarez
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Connecting rod bearing

Just measured connecting rod bearing clearance with plastigage and found that the clearance is beyond the "allowable .022-.069mm (.00086-.0027inch)". How do I find out which type of rod bearings I need to get back within the allowable range? I…
Miguel Moreno
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On rebuilding an engine: can anyone define "free spinning the crankshaft"?

As I'm adding more parts to the engine I'm rebuilding, and reading its Haynes and other manuals, I get more confused with those parts that should let the crankshaft "free spinning", as said in the manuals. For instance, when applying torque to the…
Aram Alvarez
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Piston deck clearance: is 1.4 mm under deck too much?

I'm installing a piston set in a Skoda Estelle 120 engine. I know this is not a definite way to measure piston to deck clearance, but it jumped to my mind to measure it with a vernier caliper using its rod to measure depths: all pistons are about…
Aram Alvarez
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Piston ring wear and gap

I have few questions about rings, their wear and their gap. What makes the worn ring "worn". Is it the ring gap that widens when ring wears down? Or is it mostly the edges of the rings that wont seal so well after they get "rounded"? What is the…
wtknow
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How is ground clearance measured?

I have a 2002 Honda Accord, which has a stated ground clearance of 6.2 inches. I am looking to replace it with a small SUV/crossover and was looking at a Hyundai Tucson. But when I google the specs I see the ground clearance reported as 6.4 inches…
Peter M
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Valves calibration vs fuel economy

My new hobby car (Fiat 126p, 2 cyls air cooled, rear mounted) is not doing correct fuel economy. Spark plugs looks ok. Fumes, at cold start are black but as it warms up, it looks ok. The only suspicious thing here is that one of the intake valves…
Aram Alvarez
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Maximum valve clearances. How big is too big?

I have a 1700 Leyland "O series" engine which has what I believe to be a direct overhead cam (OHC). The lobes on the overhead cam push directly down on buckets with shims. I have just transferred all the valve assemblies over into a used (probably),…
Michael Sherpa
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Increase ground clearance of hyundai accent 2012

I have a Hyundai Accent car - 2012 model. Since the roads in my country are not so smooth, I am having a tough time taking it around. Is it possible to increase the ground clearance for my car, even if by a few inches?
yogi_bear
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