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1500 questions
11
votes
5 answers
Should I use open engine oil that was left over from previous oil change
So, I have accumulated 4 Liter engine oil which are left overs of previous oil changes. I have accumulated these amount in 1 year. So should I use it or not? I use Mobil 1 full synthetic 0w 40.
Please give me suggestions.
Sadat Mainuddin
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11
votes
2 answers
Do I need to replace all engine mounts after one has failed?
I had the gearbox mount break in my Mk2 Citroen Saxo (one of three mounts holding the engine, gearbox etc up). The engine fell down due to the lack of mount, and the gearbox hit the floor (and cracked).
I will, of course, be replacing the gearbox…
James Monger
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11
votes
2 answers
Performance Exhaust -- what, how, why?
I've seen performance exhaust pipes on sale for cars and motorcycles, and my questions are these:
What does it do? (better performance [and how so?]? better mileage? cooler sounds?) Is/how is it different for different engines? (car,…
Ben Mosher
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11
votes
3 answers
What size hole should be drilled for an individual tap?
The other day while doing further work on my son's Subaru, I drilled a hole in a piece of angle iron then started using my 1/4-20 tap to cut some threads in the hole. The idea was to have a threaded hole which I can screw a bolt into to secure the…
Pᴀᴜʟsᴛᴇʀ2
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11
votes
6 answers
How to stiffen up a loose ball & socket joint for a motorcycle mirror?
I have bar-end mirrors on my Buell 1125CR. They're fairly heavy anodized aluminum pieces that pivot on a ball & socket joint for adjusting the angle of view.
One of them fits snugly on the joint, so I can adjust it and it stays in place as I'm…
Bungle
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11
votes
5 answers
What is the significance of rotating tyres in this pattern?
The Toyota owner manual contains this diagram.
For non-directional tyres, what is the significance of swapping tyres in this pattern? Specifically, why is it advised to keep the front tyres on the same side of the car when moving them to the rear?…
DizzyFool
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11
votes
2 answers
Found a 10 mm nut in the transmission fluid
I was draining the fluid out of the automatic transmission of a '94 Sentra with a RL4F03A tranmission. While I was removing the magnets, one of them was holding onto a 10 mm hex nut. It was clean, not mangled, not stripped.
After getting back under…
tlhIngan
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11
votes
1 answer
What is this sticker on the coolant expansion tank trying to tell me?
My new-to-me Land Rover LR3 needs a coolant top-up.
The trouble is I don't know what this sticker on the reservoir (not cap) is trying to warn me about.
Is the LR3 allergic to green coolant? Or is it warning against mixing different types of…
Zaid
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11
votes
2 answers
Huge puddle of water under car
I parked my Dodge Viper after driving for about two hours (in July, ~90°F, AC at full blast). Half an hour later I noticed a huge puddle under the engine, on the passenger side.
I am pretty sure it was water since it was thin, odorless, and cool.…
purpleACR
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11
votes
3 answers
What exactly is a jackshaft?
The Wikipedia entry for the Ford Cologne 4.0L SOHC describes the use of a "jackshaft":
It uses a jackshaft in place of a camshaft to drive a timing chain to each cylinder head. Three timing chains are used, one from the crank to the jackshaft, one…
Zaid
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11
votes
7 answers
When is remote start unsafe?
I recently bought a new GM vehicle in the USA. It has a factory remote start and I can use an app to perform vehicle functions and reports, including being able to start my car remotely from my smart phone.
When I attempt to start my car via GM's…
user4896
11
votes
3 answers
What are the possible causes of vibrating steering wheel?
What can be the cause of a vibrating steering wheel when driving faster than a specific velocity (let's said 60 mph). How to discriminate one cause from on other ?
ucsky
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11
votes
7 answers
How many amps should my car pull while it is turned off?
I've recently started having a bit of trouble with my car. I typically drive my car to and from work each day. A couple weeks ago I went on vacation and when I returned, my car battery was as dead as could be. The battery was already a couple…
RLH
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11
votes
3 answers
When should I disconnect the battery to stay safe during repairs?
I am planning to do some car fixes and want to know what precautions I must follow in order to make it safely. Specifically, I'd like to know is for what kind of work, the battery should be unplugged.
I assume that everything related to lights must…
Eugene S
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11
votes
3 answers
Do fault codes get recorded with a time stamp into a log with a history of DTCs?
Just scanned my vehicle for the first time to check out the code for a Check Engine Light. I grew curious if these fault codes get logged somewhere with a date and time stamp of some kind at the time they were thrown. I'm imagining some design…
jxramos
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