chilljeet
  • Member for 6 years, 11 months
  • Last seen more than a month ago
3 answers
19 votes
211k views
What exactly is a "burnt valve" and what causes it?
Accepted answer
16 votes

Valves can bend, break and/or burn. If the valves don't provide a complete seal, for whatever reason, the hot gases are forced past the valve which eat away or burn away the edge of the valve due to ...

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1 answers
10 votes
14k views
Why doesn't my rev limiter bounce?
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13 votes

Traditional rev limiters work by controlling the ignition and/or fuel. Ignition Control Retarding the spark (smoother) Completely cutting the spark (more aggressive) Fuel Control - Amount ...

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3 answers
20 votes
116k views
What does a flywheel do and what is it connected to?
11 votes

This is addition to Paulster's answer. Here's an animation The disc in Grey is the flywheel Wikipedia provides a good general outline - A flywheel is a rotating mechanical device that is used to ...

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3 answers
16 votes
1k views
What mechanical action is heel and toe (clutchless) shifting trying to accomplish?
9 votes

I'm going to expand on rpmerf's answer, where he has disambiguated between Heel and toe and clutchless shifting. I'l briefly explain the driving technique only to better illustrate what it hopes to ...

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1 answers
9 votes
1k views
Does free revving a diesel engine to 4000 rpm (1.6 crdi- hyundai) cause any damage?
8 votes

Short answer - no. It's perfectly okay. And , it's also perfectly okay to be annoyed. It's one of those things mechanics like to do (no offence to anyone). Similar to endlessly hitting refresh on a ...

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3 answers
6 votes
244 views
How to make an electronic system know which gear the engine is on?
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8 votes

If the engine had a gear position sensor or you were considering installing one, i'd assume you wouldn't be asking this question. Anyhow, still , if you can install one, that'd be your easiest option, ...

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2 answers
6 votes
29k views
What exactly is Honda's i-VTEC technology
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7 votes

In addition to Zaid's answer. VTEC - Variable Valve Timing and Lift Electronic Control) In essence, it selects between two different cam profiles depending on the RPM. Here's an animation - This is ...

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2 answers
6 votes
7k views
Why are gears designed in this pattern in motorcycles?
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7 votes

Look at it this way, the sequence is indeed linear - 1-2-3-4 and so on, with the neutral sitting in-between 1st and 2nd gear. Which means, to shift to neutral from 1st gear (or down from second), one ...

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6 answers
11 votes
11k views
The poor man's Start Interrupt Switch -- non-obvious way to disable starting
7 votes

If you really want a no-install option, and even @paulster2 answer seems like work then why not use old school locks like gear/steering locks? Or better, this -

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2 answers
9 votes
37k views
What is the function of a blow-off valve vs a wastegate?
7 votes

You've understood how they work, now you must think about "when" they work to understand why they're there. A turbo utilizes the exhaust gas to spin a turbine which which is mechanically coupled to ...

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2 answers
3 votes
520 views
Plausible issues of not having a center stand and solutions for those?
6 votes

Mechanics are very resourceful, and I doubt you'd have any issue working with them in India, even in ill equipped small shops. The company itself would have taken cognizance of this fact. Also, maybe ...

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2 answers
15 votes
5k views
How does a transfer case split power between front/rear?
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5 votes

TLDR : Planetary center differential with viscous coupling. EDIT : This is wrt center differential transfer case and not traditional 4X4 transfer case , since the question is about torque biasing ...

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3 answers
15 votes
12k views
What are the Advantages of a Single Side SwingArm on Motorcycles?
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5 votes

The information provided by DucatiKiller is excellent. I believe the biggest advantage is access, which makes wheel changes and maintenance arguably easier. This could also translate to pit-lane ...

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2 answers
1 votes
10k views
Filling nitrogen tires with normal air
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5 votes

In short - No, you can safely top the tires up with regular air. There's absolutely no difference in ride quality and handling between the two under similar pressure. Having said that, filling tires ...

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1 answers
2 votes
603 views
What kind of technology is used to create this "The Self Balancing Electric Motorcycle"?
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4 votes

The vehicle uses 2 GYROSCOPES as seen here (same video) to stabilize the vehicle. Read up a little about the concept on the first link. The key property that is being exploited here is the gyroscopic ...

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3 answers
11 votes
42k views
What are the advantages of upside down forks?
3 votes

Greater Torsional Stability. Why should flipping the orientation cause any difference? Without getting into a detailed analysis, you can imagine that most of the stresses on the fork can be assumed to ...

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2 answers
5 votes
811 views
Kawasaki H2R flames come out of exhaust system
3 votes

Anarach has provided a good survey of the Backfire (or afterfire in this case, if you're being pedantic) phenomenon. I will attempt to add to that keeping it specific to the H2R. Watch this video, the ...

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2 answers
1 votes
781 views
Can someone identify this part of the engine on a TVS Apache
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3 votes

EDITED I'm going to assume that you mixed up the arrow-head direction. The part is definitely not connected to the starter. Though I'd earlier thought that it was for oil return from the Head , I ...

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2 answers
3 votes
977 views
1987 Yamaha FZ700 headlights not working
3 votes

A quick Google search resulted in this. I couldn't find the legend for it but I guess it should be fairly straightforward. It could be bad wiring, bring out the multi-meter! EDIT Here's a link to the ...

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1 answers
7 votes
1k views
Why do open differentials drive the wheels on the ground when a vehicle drives on two?
3 votes

This could work in a car with an open differential and an active traction control system. When the system detects a wheel spin, it actively brakes (and locks out) the particular wheel, as a ...

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1 answers
4 votes
127 views
Why would one install widebands on vehicles that are setup for narrowbands?
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3 votes

A narrowband sensor can only measure 14.7:1 AFR (stoichiometric) , where as wideband sensors allows you to measure a range of AFR ~(<10 to ~20). ECU's that rely on narrowband output maintain the ...

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1 answers
2 votes
12k views
Altima 2006 2.5 S Code P0462 = Fuel Level Sensor A Circuit, Low Input Fuel Gauge Is Inop
2 votes

Fault Code P0462 reads out - Fuel Level Sensor Circuit Low Input and could be caused by - - Faulty fuel level sensor - Fuel level sensor harness is open or shorted - Fuel level sensor circuit poor ...

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1 answers
1 votes
3k views
Sideskirt repair
Accepted answer
2 votes

You can use acetone to melt and weld ABS plastic. Simply apply acetone to the broken edges and hold them together firmly. You could then reinforce it from behind the skirt by using epoxy (loctite?) to ...

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3 answers
1 votes
1k views
Does downshifting ( Engine Braking ) help when my car brakes CAN lock the wheel?
2 votes

EDIT Brakes must be capable of locking the wheels (with ABS disabled). If the brakes can't provide this force, then there's something wrong. To brake effectively, you must regulate the brakes (or the ...

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6 answers
6 votes
29k views
Why are drum brakes still fitted on Ford's cars?
2 votes

Because it's cheaper to produce. And that may not be so bad since it's cheaper for you as well, to maintain at least. They are also smaller in dia (not width necessarily) for the same braking force ...

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1 answers
4 votes
905 views
Acura TL 2001 squeaking noise
2 votes

Apparently this particular model suffers from this issue in cold climates. This is due to the factory o-ring failing to provide a good seal and thus allowing air to enter the Power Steering Pump Inlet....

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3 answers
3 votes
7k views
Should I put my (UK) Automatic into Neutral at stops?
1 votes

EDIT Removed a certain point about the need for parked vehicles to use warning lights/brake lights as this point was admittedly not relevant to the answer, neither was it insightful. In remark to ...

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