Questions tagged [clearance]

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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 ...
Michael Sherpa's user avatar
10 votes
3 answers
2k views

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 ...
Kang Min Yoo's user avatar
1 vote
2 answers
2k views

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 ...
Peter M's user avatar
  • 329
0 votes
2 answers
643 views

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 ...
yogi_bear's user avatar
  • 101
1 vote
0 answers
505 views

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 ...
Aram Alvarez's user avatar
  • 3,336
2 votes
1 answer
4k views

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 ...
Aram Alvarez's user avatar
  • 3,336
2 votes
2 answers
959 views

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 ...
Miguel Moreno's user avatar
2 votes
2 answers
10k views

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 ...
Aram Alvarez's user avatar
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2 votes
1 answer
2k views

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 ...
Aram Alvarez's user avatar
  • 3,336